Differences In Body Composition Research Articles

Differences in anthropometric and vertical jump force-time characteristics between U16 and U18 female basketball players.

Considering the importance of body composition and lower-body strength and power for basketball players' on-court performance, as well as a lack of sports science research focused on female athletes, the purpose of the present investigation was to record the anthropometric and countermovement vertical jump (CMJ) characteristics of top-tier U16 and U18 female basketball players and examine between-group differences in the aforementioned tests. Thirty-two athletes who were a part of the national basketball academy volunteered to participate in the present investigation. Following the body composition assessment conducted via a segmental multifrequency bioimpedance analyzer, athletes performed three CMJs while standing on a force plate system sampling at 1000 Hz. Independent t-test and Mann-Whitney U-test were used to examine between-group differences. The findings reveal significant differences in body composition and lower-body neuromuscular performance characteristics between female basketball players ages 16 and 18. Although no differences were observed in muscle and body fat percentages, the U18 group had significantly greater height, overall body mass (both muscle and fat mass), as well as greater segmental fat-free mass (trunk, both legs and arms), intracellular and extracellular water, and body mass index when compared to their U16 counterparts. On the other hand, the U18 group demonstrated longer eccentric, concentric, and braking phase duration, as well as overall contraction time when compared to the U16 players. In addition, the U18 athletes exhibited higher eccentric mean force and power, concentric impulse, peak power, and mean and peak force.

The 300 Marines: characterizing the US Marines with perfect scores on their physical and combat fitness tests.

Determine distinguishing characteristics of the "300 Marines" (perfect PFT and CFT scores) that may provide insights into the physical and physiological requirements associated with this capability. These tests have been refined over time to reflect physical capabilities associated with Marine Corps basic rifleman performance. Data were analyzed from US Marines, including 497 women (age, 29 ± 7years; height 1.63 ± 0.07m; body mass, 67.4 ± 8.4kg) and 1,224 men (30 ± 8years; 1.77 ± 0.07m; 86.1 ± 11.1kg). Marines were grouped by whether they earned perfect 300 scores on both the PFT and CFT (300 Marines) or not. We analyzed group differences in individual fitness test events and body composition (dual-energy x-ray absorptiometry). Only 2.5% (n = 43) of this sample earned perfect PFT and CFT scores (n = 21 women; n = 22 men). Compared to sex-matched peers, 300 Marines performed more pull-ups, with faster three-mile run, maneuver-under-fire, and movement-to-contact times (each p < 0.001); 300 Marines of both sexes had lower fat mass, body mass index, and percent body fat (each p < 0.001). The lower percent body fat was explained by greater lean mass (p = 0.041) but similar body mass (p = 0.085) in women, whereas men had similar lean mass (p = 0.618), but lower total body mass (p = 0.025). Marines earning perfect PFT and CFT scores are most distinguished from their peers by their maneuverability, suggesting speed and agility capabilities. While both sexes had considerably lower percent body fat than their peers, 300 Marine women were relatively more muscular while men were lighter.

A NEW ALGORITHM FOR DIAGNOSING OBESITY BASED ON INDICATORS OF BODY COMPOSITION

Introduction. Body mass index (BMI), which is measured as the ratio of body weight to height squared, is one of the widely used criteria for classifying overweight and obesity. Despite its popularity, BMI is often criticized for not taking into account individual differences in body composition and fat distribution, which can lead to inaccuracies in the classification of the degree of obesity. Aim. To develop and test a somatotype diagnostic algorithm based on the integration and comprehensive analysis of fat content, skeletal muscle mass, and fat distribution. Materials and methods. The study was conducted on a group of 82 men with different indicators of BMI. A developed algorithm was used to diagnose somatotype, which included body fat index (IBF), limb muscle mass index (IASM), and waist circumference to height ratio (WHtR). The results were analyzed and classified according to the defined criteria. Results. The proposed algorithm was tested on a sample of 82 examined men, who were divided into 2 groups depending on BMI. Thanks to our algorithm, it was possible to identify prognostically unfavorable somatotypes characterized by sarcopenia with a central type of fat distribution. These are F1S1C1 and F2S1C1 somatotypes, the total number of which was 9 examined (10.96% of the sample). Approbation of the algorithm was carried out on a group of examined men, confirmed its effectiveness and ability to detect different somatotypes, taking into account complex parameters of the body. Conclusions. Our research algorithm turned out to be a useful tool for somatotype diagnosis, especially in cases where BMI may not accurately reflect the real state of health. Taking into account individual differences in body components such as fat content, skeletal muscle mass and fat distribution, we provide a more accurate classification of somatotype and the possibility of a more individualized approach to treatment and prevention.

Exposure memory and susceptibility to ambient PM2.5: A perspective from hepatic cholesterol and bile acid metabolism

Both epidemiological and experimental studies increasingly show that exposure to ambient fine particulate matter (PM2.5) is related to the occurrence and development of chronic diseases, such as metabolic diseases. However, whether PM2.5 has "exposure memory" and how these memories affect chronic disease development like hepatic metabolic homeostasis are unknown. Therefore, we aimed to explore the effects of exposure transition on liver cholesterol and bile acids (BAs) metabolism in mice. In this study, C57BL/6 mice were exposed to concentrated ambient PM2.5 or filtered air (FA) in a whole-body exposure facility for an initial period of 10 weeks, followed by another 8 weeks of exposure switch (PM2.5 to FA and FA to PM2.5) comparing to non-switch groups (FA to FA and PM2.5 to PM2.5), which were finally divided into four groups (FF of FA to FA, PP of PM2.5 to PM2.5, PF of PM2.5 to FA, and FP of FA to PM2.5). Our results showed no significant difference in food intake, body composition, glucose homeostasis, and lipid metabolism between FA and PM2.5 groups after the initial exposure before the exposure switch. At the end of the exposure switch, the mice switched from FA to PM2.5 exposure exhibited a high sensitivity to late-onset PM2.5 exposure, as indicated by significantly elevated hepatic cholesterol levels and disturbed BAs metabolism. However, the mice switched from PM2.5 to FA exposure retained a certain memorial effects of previous PM2.5 exposure in hepatic cholesterol levels, cholesterol metabolism, and BAs metabolism. Furthermore, 18-week PM2.5 exposure significantly increased hepatic free BAs levels, which were completely reversed by the FA exposure switch. Finally, the changes in small heterodimeric partner (SHP) and nuclear receptor subfamily 5 group A member 2 (LRH1) in response to exposure switch mechanistically explained the above alterations. Therefore, mice switching from PM2.5 exposure to FA showed only a weak memory of prior PM2.5 exposure. In contrast, the early FA caused mice to be more susceptible to subsequent PM2.5 exposure.

Maternal exercise increases infant resting energy expenditure: preliminary results

Maternal obesity is associated with lower infant resting energy expenditure (REE), predisposing them to more rapid weight and adiposity gain through early infancy. Maternal exercise (ME) decreases infant adiposity and risk for childhood obesity; however, it remains unknown if this is in part mediated by changes in infant energy expenditure. Thus, we measured REE in 1-month-old infants from pregnant individuals who performed moderate-intensity exercise during pregnancy and compared it to infants from non-exercising controls. We observed higher oxygen respiratory rates (p = 0.003 for VO2 and p = 0.007 for VCO2) and REE (p = 0.002) in infants exposed to exercise in utero, independent of any differences in infant body composition. Furthermore, maternal BMI was significantly and inversely associated with infant REE in the control (r = −0.86, R2 = 0.74, p = 0.029), but not the exercise group (r = 0.33, R2 = 0.11, p = 0.473). Together, these findings associate ME with increasing infant energy expenditure which could be protective of subsequent infant adiposity gain. Clinical Trial: ClinicalTrials.gov Identifier: NCT03838146 and NCT04805502.

Unintentional weight loss, body composition, and all-cause mortality among United States adults with cancer.

e22527 Background: While unintentional weight loss (UWL) is a common presenting symptom of malignancy, weight changes also occur regularly in patients with diagnosed cancer.UWL is often characterized by considerable muscle and fat loss and can lead to cachexia, which may increase risk of mortality. This nationally representative study aims to assess the association between UWL and mortality among adults with history of cancer and characterize differences in body composition. Methods: This was a retrospective cohort study of the National Health and Nutrition Examination Survey 1999-2018 linked to the 2019 National Death Index. We identified adults with self-reported history of cancer, excluding non-melanoma skin cancer. Weight change was determined as the difference between current weight and self-reported weight 1 year prior to interview. We categorized weight change into: UWL (unintentionally losing &gt; 5% of weight), intention weight loss (IWL) (intentional loss &gt; 5% weight), no weight change (NWC) (≤5% weight change), weight gain (WG) ( &gt; 5% weight gain). We estimated risk of all-cause mortality using gender-stratified multivariable Cox regression, adjusting for demographics (age, race, income, education, insurance status), sociobehavioral factors (smoking, alcohol, nutrition, physical activity, self-reported health), comorbidities, and albumin. We additionally identified participants with cancer who had whole-body dual x-ray absorptiometry scans (2011-2018) and assessed body composition measurements including total lean mass, lean-to-fat ratio, subcutaneous fat mass, and visceral fat mass by weight change category using multivariable linear regression. Results: Among 3,153 participants (mean age 62 years, 55% women, 82% non-Hispanic White), the top four primary cancers were breast (21%), prostate (14%), melanoma (11%), and cervical (11%). Approximately 9% of men and 11% of women experienced UWL. Adults with UWL were more likely to have lower socioeconomic status, more functional limitations, and higher comorbidity burden. Across a median 7 years (IQR, 3-11y) follow-up, 22% of females and 34% of men died. Both men and women experiencing UWL had more than 2 times the risk of all-cause mortality compared to NWC (adjusted HR [95% CI]; men: 2.02 [1.47, 2.78]), women: 2.43 [1.78, 3.34]). Participants with UWL had less subcutaneous fat mass (-113g, 95% CI [-242, 16]) and visceral fat mass (-65g, 95% CI [-146, 16]) compared to NWC, though not statistically significance. Conclusions: UWL in patients with history of cancer is independently associated with more than 2 times the risk of all-cause mortality in both men and women. UWL was associated with proportional loss of both subcutaneous and visceral fat mass. Further longitudinal studies examining UWL’s impact on body composition changes and downstream outcomes by cancer type and stage are needed.

Effects of Pilates-Combined Training on the Improvement of Flexibility and Pain Relief in Elite Fencers

PURPOSE: This study aimed to examine the effects of incorporating Pilates into the training regimen of elite fencers, focusing on enhancing flexibility and alleviating pain commonly experienced in the sport.METHODS: Twenty-five collegiate male elite fencers were stratified into two groups: a fencing training group (FT, n = 12, age = 18.92 ± 1.08, weight = 71.78 ± 7.43 kg, body mass index [BMI] = 22.32 ± 2.09 kg/m2) and a fencing-Pilates combined training group (FPT, n = 13, age = 19.92 ± 0.64, weight = 70.97 ± 9.14 kg, BMI = 22.61 ± 1.71 kg/m2). Evaluations, including body composition; physical fitness factors; shoulder strength; and joint range of motion in the upper extremities, lower extremities, neck, and spine, were conducted before and after 12 weeks of the intervention. Additionally, examinations of pain catastrophizing and anxiety levels during competitive engagements were performed.RESULTS: There were no statistical differences in body composition, physical fitness factors, or upper-limb strength between the FT and FPT groups. However, the FPT group exhibited a notable enhancement in shoulder abduction of the upper limb when holding a sword, in contrast to the unchanged metrics observed in the FT group. The positive impact of Pilates-combined treatment on flexibility extended to the neck; waist; and lower extremities, such as hip flexion, hip extension, hip abduction, medial rotation, and ankle dorsiflexion, coupled with significant improvements in psychological aspects, such as pain relief and related competition anxiety.CONCLUSIONS: This study confirmed that Pilates-combined treatment can have a beneficial effect on improving flexibility and pain in fencers, and verified the effectiveness of Pilates as an auxiliary training method for elite fencers.

#2057 Sex differences in bioimpedance-spectroscopy-derived fluid status and body composition of maintenance hemodialysis patients

Abstract Background and Aims Bioimpedance-spectroscopy-(BIS)-derived estimates of fluid status and body composition are associated with mortality in patients undergoing maintenance hemodialysis (HD). Previously, thresholds for improved survival were identified for volume overload (VO, &amp;lt;2.5 L), VO relative to extracellular water (VO/ECW, &amp;lt;15%), lean tissue index (LTI, 15-20 kg/m2) and fat tissue index (4-15 kg/m2). However, these thresholds did not distinguish between sexes. Considering current efforts to untangle differences between male and female kidney disease patients, we aimed to analyze BIS data stratified by sex. Method We retrospectively evaluated pre-HD BIS measurements using the whole-body “Body Composition Monitor” device (Fresenius Medical Care). Measurements were conducted at the “Vienna Dialysis-Center”, a large tertiary dialysis center in Vienna, Austria. Continuous variables were described as medians and interquartile ranges and compared between sexes using Wilcoxon tests. Differences in proportions of males and females within the above-mentioned target ranges of body composition parameters were tested using Chi-Square tests and Fisher's exact tests. Results In November 2022, the Vienna Dialysis-Center cared for 304 patients, 159 of whom underwent BIS measurements. A total of 137 patients remained for analysis after excluding erroneous results (62% male, 38% female). The median [interquartile range] age among analyzed male and female patients was 60.0 years [48.0; 72.0] and 65.5 years [57.8; 75.3], and the median dialysis vintage was 28.9 months [12.1; 52.7] and 27.2 months [14.8; 61.9], respectively. VO (2.7 vs 1.9 L, p = 0.025), LTI (13.4 vs. 11 kg/m2, p &amp;lt; 0.001) and FTI (11.1 vs. 14.2 kg/m2, p = 0.036) differed significantly between males and females but VO/ECW did not (14.3 vs. 12%, p = 0.4). 27.1% of males (n = 23) were within 15-20 kg/m2 LTI compared to 7.7% of females (n = 4, p = 0.007). Differences in the proportions of male and female patients within optimal ranges of VO (43.5% vs. 61.5%, p = 0.062) and FTI (67.9% vs. 50.0%, p = 0.058) were close to reaching statistical significance. Conclusion We discovered relevant differences in fluid status and body composition among patients undergoing maintenance HD not only in absolute numbers, but also in the proportion of patients within the optimal range of LTI. Considering sex differences in body composition but (on average) equal mortality among HD patients, optimum target ranges of BIS measurements may differ between sexes. Our findings from this relatively small cohort call for large-scale sex-specific analyses of fluid status, body composition and outcomes in maintenance HD patients.

Sex-specific considerations in cardiovascular drug therapy.

Despite major advances in cardiac research over the past three decades, cardiovascular disease (CVD) still remains the leading cause of morbidity and mortality in women and men worldwide. However, a major challenge for health care providers is that the current guidelines for cardiovascular drug therapies do not consider the impact of sex in the development of treatment plan for optimizing therapies for women. Clinical research in recent years suggests significant pharmacological and pharmacokinetic differences between females and males, which have been attributed in part to differences in body composition, plasma protein binding capacity, drug metabolism, and excretion. Herein, we provide a comprehensive review regarding sex-specific differences and drugs commonly used for CVDs in women and men. Understanding how sex-related differences influence drug efficacy and CVD outcomes is crucial for not only optimizing treatment strategies for women and men but also to encourage the implementation of specific guidelines that address sex difference as a consideration for the treatment of CVDs.

Differences and Relationship between Body Composition and Motor Coordination in Children Aged 6-7 Years.

The primary goal of this study was to investigate the relationship between body composition and motor coordination performance, and the secondary goal was to determine sex differences in body composition and motor coordination of preschool children. Forty-eight children (23 boys and 25 girls) underwent assessments for body composition and motor coordination using the Köperkoordinationstest für Kinder (KTK). Linear regression analysis revealed significant associations between body composition and motor coordination in boys (p < 0.05) but not in girls. In boys, Body height (p = 0.01), Total muscle mass (p = 0.03), Total fat (p = 0.03), and Total water (p = 0.02) show statistically significant influence on single-leg jumps. Similar results were obtained for lateral jumps where there was a statistically significant influence of Body height (p = 0.01), Total muscle mass (p = 0.03), and Total water (p = 0.02). Interestingly, predictive variables showed no statistically significant influence on KTK overall score in boys (p = 0.42) nor in girls (p = 0.90). The predictive system of morphological variables demonstrated significance only among boys in this age group and sample. Girls outperformed boys due to early maturation, resulting in better average KTK scores.

Are physical activity and/or adherence to the Mediterranean diet determinants of the changes found in kinanthropometric variables, body composition and physical fitness in adolescents?

The practice of physical activity and adherence to the Mediterranean diet (AMD) have been extensively studied for their relationship with kinanthropometric, body composition and physical fitness variables. However, no previous study has analyzed whether these healthy habits are equally determinant for the differences found in kinanthropometric, body composition and physical fitness variables or, on the contrary, if one of them is more relevant. For this reason, the objectives of the present study were: (1) to analyze the differences in kinanthropometric, body composition, and physical fitness variables between adolescents with different levels of physical activity and AMD, and (2) to determine whether physical activity and/or AMD are predictors of differences in kinanthropometric variables, body composition or physical fitness in adolescents. The sample consisted of 791 adolescents (404 males and 387 females; mean age: 14.39±1.26 year-old) whose physical activity level, AMD, kinanthropometric variables, body composition and physical fitness, were measured. The results showed differences when considering the level of physical activity in kinanthropometric variables, body composition and physical fitness, but not the level of AMD, which was relevant only when it was poor, and the adolescents were inactive. Nevertheless, the AMD did not seem to exert such a determining effect as to produce significant differences on its own. On the other hand, the practice of physical activity did act as a predictor mainly of changes in the fitness variables. Therefore, the main novelty of the present study is the establishment of an order of importance of the healthy habits acquired by adolescents, concluding that the practice of physical activity is more determinant for the differences found in the study variables.

Impact of increased protein intake in older adults: a 12-week double-blind randomised controlled trial.

Emerging evidence suggests health-promoting properties of increased protein intake. There is increased interest in plant protein but a dearth of information in relation to its impact on muscle function. The objective of the present work was to examine the impact of intake of different types of proteins on muscle functional parameters including handgrip strength, biomarkers of metabolic health, sleep quality and quality of life in a group of older adults. Healthy men and women aged 50years and older entered a double-blinded, randomised, controlled nutritional intervention study with three parallel arms: high plant protein, high dairy protein and low protein. Participants consumed once daily a ready-to-mix shake (containing 20g of protein in high protein groups) for 12weeks. Changes in handgrip and leg strength, body composition, metabolic health, quality of life and sleep quality were analysed by linear mixed models in an intention-to-treat approach. Eligible participants (n= 171) were randomly assigned to the groups (plant: n= 60, dairy: n= 56, low protein: n= 55) and 141 completed the study. Handgrip strength increased after the intervention (Ptime= 0.038), with no significant difference between the groups. There was no significant difference between groups for any other health outcomes. In a population of older adults, increasing protein intake by 20g daily for 12weeks (whether plant-based or dairy-based) did not result in significant differences in muscle function, body composition, metabolic health, sleep quality or quality of life, compared with the low protein group.

Lifespan Effects of Muscle-specific Androgen Receptor Overexpression on Body Composition of Male and Female Rats

Androgenic actions of gonadal testosterone are thought to be a major mechanism promoting sex differences in body composition across the lifespan. However, this inference is based largely on studies of androgen receptor (AR) function in late adolescent or emerging adult rodents. Here we assess body composition and quantify AR expression in skeletal muscle of rats at defined ages, comparing wild-type (WT) to transgenic HSAAR rats which overexpress AR in skeletal muscle. Male and female HSAAR and WT Sprague Dawley rats (N=288) underwent DEXA scanning and tissue collection at post-natal day (PND) 1, 10, 21, 42, 70, 183, 243, and 365. As expected, sex differences in body composition and muscle mass largely onset with puberty (PND-21), with no associated changes to skeletal muscle AR protein. In adulthood, HSAAR increased tibialis anterior (TA) and EDL mass in males, and reduced the expected gain in gonadal fat mass in both sexes. In WT rats, AR protein was reduced in soleus, but not TA, throughout life. Nonetheless, soleus AR protein expression was greater in males than females at all ages of sexual development, yet only at PND-70 in TA. Overall, despite muscle AR overexpression effects, results are inconsistent with major sex differences in body composition during sexual development being driven by changes in muscle AR, but rather suggest that changes in ligand promote sexual differentiation of body composition during pubertal timing. Nonetheless, increased skeletal muscle AR in adulthood can be suffcient to increase muscle mass in males, and reduce adipose in both sexes. This work was supported by an NSERC Grant awarded to D.A.M. (RGPIN 312458). This is the full abstract presented at the American Physiology Summit 2024 meeting and is only available in HTML format. There are no additional versions or additional content available for this abstract. Physiology was not involved in the peer review process.

Assessing the Body Composition of "Picky Eaters" Using Body Impedance Analysis: An Experience From a Tertiary Care Center.

Picky eating might be associated with a higher risk of being underweight and poor growth. This study aimed to investigate if picky eaters aged between three and 12 yearsshowed differences in height, weight, and body composition compared to their non-picky peers using a body impedance analysis (BIA). This cross-sectional study was conducted between March 1, 2022, and July 31, 2022, on children aged three to 12 years who presented to the outpatient pediatric clinics at Al Habib Ar Rayyan in Riyadh, Saudi Arabia. Body composition was measured using BIA after manually inserting the height, gender, and age into the machine, where body mass index (BMI), fat mass, and skeletal muscle mass were recorded. Participants were classified as under/normal/over for each body composition measurement. A total of 2234 children were entered into the final data analysis. Our analysis showed that 1917 (85.8%) were Saudis and 1117 (50%) were males. The mean age of participants was 6.08±2.01 years and 1151 (51.5%) were in the pre-school age. The reported prevalence of picky eaters was 1684 (75.4%), of whom, 606 (27.0%) were selective eaters, 365 (16.2%) were low appetite eaters, and 723 (32.2%) were both selective and low appetite eaters. Being underweight was significantly more common among the picky eaters 487 (28.9%) compared to those non-picky eaters 55 (10.0%) (p<0.001). Significantly, 1280 (76%) picky eaters had below-average skeletal muscle mass compared to 151non-picky eaters (27.5%) (p<0.001). The low appetite picky eater group had more under skeletal muscle mass children 277 (75.9%) compared to the selective picky eater group412 (68.0%) (p=0.009).Additionally, the low appetite group possessed lower muscle ratios (p=0.012) and were more underweight than the selective group (p<0.001). Furthermore, the low appetite group showed a higher percentage of children below the 3rd percentile in the height for age category (p=0.003) compared to the selective group. This study is the first of its kind in Saudi and globallyto evaluate body composition using BIA among children. The study showed that picky eating is more associated with underweight children and low muscular mass. Despite the normal BMI, height, and weightof a picky eater, their skeletal muscle mass might be less than average,which could be associated with an increased risk of morbidity.

The impact of CREBRF rs373863828 Pacific-variant on infant body composition

In Māori and Pacific adults, the CREBRF rs373863828 minor (A) allele is associated with increased body mass index (BMI) but reduced incidence of type-2 and gestational diabetes mellitus. In this prospective cohort study of Māori and Pacific infants, nested within a nutritional intervention trial for pregnant women with obesity and without pregestational diabetes, we investigated whether the rs373863828 A allele is associated with differences in growth and body composition from birth to 12–18 months’ corrected age. Infants with and without the variant allele were compared using generalised linear models adjusted for potential confounding by gestation length, sex, ethnicity and parity, and in a secondary analysis, additionally adjusted for gestational diabetes. Carriage of the rs373863828 A allele was not associated with altered growth and body composition from birth to 6 months. At 12–18 months, infants with the rs373863828 A allele had lower whole-body fat mass [FM 1.4 (0.7) vs. 1.7 (0.7) kg, aMD −0.4, 95% CI −0.7, 0.0, P = 0.05; FM index 2.2 (1.1) vs. 2.6 (1.0) kg/m2 aMD −0.6, 95% CI −1.2,0.0, P = 0.04]. However, this association was not significant after adjustment for gestational diabetes, suggesting that it may be mediated, at least in part, by the beneficial effect of CREBRF rs373863828 A allele on maternal glycemic status.

Physical Fitness in Children With Developmental Coordination Disorder: A Systematic Review.

To synthesize evidence about physical fitness levels in children with developmental coordination disorder (DCD) compared with typically developing (TD) children. We searched four databases (PubMed, Scopus, Web of Science, and PsycINFO) for cross-sectional, case-control, and cohort studies comparing physical fitness between children with and without DCD. We assessed the methodological quality of the studies with the Newcastle-Ottawa Scale (NOS). We calculated Cohen's d effect sizes to provide clinical evidence of group differences in aerobic capacity, anaerobic capacity, muscle strength, body composition and flexibility. We included 32 studies for qualitative synthesis after applying eligibility criteria. All selected studies ranged from moderate to high research quality. Effect sizes in favor of typically developing children over children with DCD were large for aerobic capacity (d = 1.15), anaerobic capacity (d = 0.90), and muscle strength (d = 0.79), and small for body composition (d = 0.43) and flexibility (d = 0.21) outcomes. Children with DCD presented significantly lower physical fitness than their typically developing peers, particularly in aerobic and anaerobic capacity and in muscle strength.

The Role of Hypogonadism in the Body Composition of Obese Men in the Preoperative Period of Bariatric Surgery

ObjectiveTo describe clinical characteristics, hormonal profile and body composition of obese men in preoperative of bariatric surgery. MethodsCross-sectional, population-based study. Patients evaluated from June 2019 to December 2021 in 2 obesity referral centers. Patients underwent clinical evaluation, androgen deficiency screening using Androgen Deficiency in the Aging Male questionnaire, hormonal profile and body composition assessment through body mass index (BMI), body fat percentage (FM-%) and mass (FM-kg) measured by electrical bioimpedance and dual energy x-ray absorptiometry. To characterize hypogonadism, 2 cut-off points were considered: TT <264 ng/dL and TT <164 ng/dL. ResultsThirty patients were included, mean age 35.6 ± 8.8 years, mean weight 129.4 ± 14.0 kg and mean BMI 42.3 ± 4.7 kg/m2. Dyslipidemia was the most prevalent comorbidity. Considering TT <264 ng/dL, 22 patients (73%) had hypogonadism. The mean TT in hypogonadal men was 198.9 + 68.7 ng/dL and in eugonadal men 357.0 + 59.5 ng/dl (P < .001). Using TT <164 ng/dL, 7 patients (23%) had hypogonadism. The mean TT in hypogonadal patients was 116.6 + 28.9 ng/dL and in eugonadal patients 279.0 + 75.0 ng/dL (P < .001). In Androgen Deficiency in the Aging Male questionnaire, 93.3% had positive screening, with no significant difference between groups. There was no statistically significant difference in body composition between groups when using TT <264 ng/dL as the hypogonadism cutoff. Considering hypogonadism TT <164 ng/dL, hypogonadal patients had significantly higher values of weight (139.0 × 126.5 kg P = .036), BMI (46.1 × 41.2 kg/m2P = .014), FM-% (48.0 × 42.8% P = .010) and FM-kg (66.3 × 53.9 kg P = .007) than eugonadal patients. ConclusionHypogonadism was identified in at least 23% of patients. Considering TT below the lower limit of normality for characterization of hypogonadism, we identified a significant worsening in body composition parameters.

Analysis of the differences in body composition and physiological profiles of professional female sub-junior soccer players of Manipur: An observational study

Background: This study aimed to analyze body composition and certain physiological profiles in professional women sub-junior soccer players of Manipur during their playing season. Method and Materials: Twenty-seven players from the Manipur sub-junior soccer team playing in local league games participated in this study. They were assessed using the variables body fat mass (BFM), soft lean mass (SLM), fat-free mass (FFM), intracellular water (ICW), extracellular water (ECW), total body water (TBW) through the sophisticated state of the art impedance bioanalyzer (Chorder, USA) and also cholesterol and lactate threshold. One-way ANOVA showed significant differences (p&lt;0.05) in anthropometric indicators and body composition parameters (Glycogen mass, Muscle mass, BCM, BCM/FFM%, Total Mineral Mass, TBW, ICW, ICW%, ICW/FFM%), body-fat percentage, relative V̇O2max, cholesterol and lactate levels and fat mass with respect to field positions. Results: There were no significant differences between playing positions in the variables of body weight, height, age, or professional experience (P&gt;0.05). However, forward-position players showed lower values of fat-free mass in relation to other playing positions, and they are lower and lighter with regard to the goalkeepers (P&lt;0.05). There are qualitative and quantitative alterations between assessed positions and the correct use of these individual differences on behalf of the team can contribute to the sportive success. Relative BCM, ECM/BCM, BCM/FFM, cholesterol, lactate threshold, and BCMI need wide-scale application in team sports. Conclusion: It can be concluded that size and body composition are important when analyzing soccer players according to their position, despite the appearance of only minor differences between them.

Sex differences in the physiological responses to cardiac rehabilitation: a systematic review

BackgroundHeart disease is one of the leading causes of death in Canada. Many heart disease patients are referred for cardiac rehabilitation, a multidisciplinary outpatient program often consisting of exercise training. Cardiac rehabilitation has been proven to be a successful secondary preventative measure in reducing mortality and improving overall health in heart disease patients, and its completion is important for both sexes as there is growing evidence that women benefit as much as men, if not more, with regard to mortality. It is important to note that previous studies have shown that healthy men and women respond differently to aerobic and resistance training, possibly due to hormones, body composition, autonomic and/or cardiovascular differences. However, evaluating sex differences in the efficacy of standard cardiac rehabilitation programs has not yet been fully explored with many studies investigating clinical or anthropometric data but not physiological outcomes. This systematic review aimed to investigate physiological differences in male and female heart disease patients after cardiac rehabilitation. The inclusion criteria were purposefully broad to encompass many cardiac rehabilitation scenarios, many cardiac disease states, and various program lengths and intensities with the intention of highlighting strengths and weaknesses of the current body of literature.MethodsTo conduct a synthesis without meta-analysis, a search strategy was generated to examine the relationships between heart disease patients, a supervised exercise program, physiological outcomes, and sex differences. The review was registered (Prospero: CRD42021251614) and the following databases were searched from inception to 19 December 2023: APA PsycInfo (Ovid), CINAHL Complete (EBSCOhost), Embase (Ovid), Emcare Nursing (Ovid), Medline All (Ovid; includes PubMed non-Medline), and Web of Science Core Collection. Eighty-eight studies pertaining to fitness, metabolism, body composition, respiratory function, cardiac function and C-reactive protein underwent data extraction.Results and conclusionsImportantly, this review suggests that men and women respond similarly to a wide-range of cardiac rehabilitation programs in most physiological variables. However, many studies discussing maximal oxygen consumption, functional capacity, six-minute walk distances, and grip strength suggest that men benefit more. Further research is required to address certain limitations, such as appropriate statistical methods and type/intensity of exercise interventions.

Relationship between serum apelin, visfatin levels, and body composition in Polycystic Ovary Syndrome patients

ObjectiveTo investigate the relationship between body composition and serum visfatin and apelin levels in patients with polycystic ovary syndrome (PCOS). MethodsIn this prospective observational study, the differences in body composition, levels of gonadal hormone concentrations, glucose metabolism, apelin, and visfatin were compared between PCOS patients and the control group. PCOS patients were further divided into different subgroups according to different obesity criteria and the differences between serum visfatin and apelin levels in different subgroups were compared. Finally, the correlation of serum visfatin levels and apelin levels with body composition, and metabolism-related indicators in PCOS patients was explored. ResultsA total collected 178 cases of PCOS patients and 172 cases of healthy women (control group) between 2020 July and 2021 November. In PCOS patients, their weight, Body Mass Index (BMI), Waist Hip Rate (WHR), Fat-Free Mass Index (FFMI), Percent Body Fat (PBF), Fat mass index (FMI), PBF of Arm, PBF of Leg, PBF of the Trunk, Visceral Fat Level (VFL), fasting insulin (FINS), Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) and Luteinizing hormone (LH) were significantly higher than in the control group (all P < 0.001), Percent Skeletal Muscle (PSM), PSM of Leg, and PSM of the Trunk were significantly decreased than in the control group (all P < 0.001). The PCOS patients had significantly higher serum visfatin levels and apelin levels compared with the control group (all P < 0.001). In PBF > 35 % PCOS patients, the apelin and visfatin levels were significantly higher than the PBF ≤ 35 % PCOS patients. In WHR ≥ 0.85 and BMI ≥ 24 kg/m2 PCOS patients, the visfatin levels were significantly higher than the WHR < 0.85 and BMI < 24 kg/m2 PCOS patients. Serum apelin and visfatin positively correlated with BMI level, WHR, FFMI, PBF, FMI, PBF of arms, PBF of legs, PBF of the trunk, VFL, FBG, HOMA-IR index and negatively correlated with PSM, PSM of legs, and PSM of the trunk (all P < 0.001). ConclusionsCompared with healthy women, Patients with PCOS have an increased fat content in various parts of the body, reduced skeletal muscle content, and are often complicated by metabolic abnormalities. Serum visfatin and apelin correlated not only with obesity, fat mass, and fat distribution but also with muscle mass and distribution. It may be possible to reduce the long-term risk of metabolic disease in PCOS through the monitoring and management of the body composition in PCOS patients or to reflect the therapeutic effect of PCOS.