Physical Aerobic Fitness Research Articles

Cost-Effectiveness of Prolonged Physical Activity on Prescription in Previously Non-Complying Patients: Impact of Physical Activity Mediators

In Sweden, physical activity on prescription (PAP) is used to support patients in increasing their levels of physical activity (PA). The role of healthcare professionals in supporting PA behavior change requires optimization in terms of knowledge, quality and organization. This study aims to evaluate the cost-effectiveness of support from a physiotherapist (PT) compared to continued PAP at a healthcare center (HCC) for patients who remained insufficiently active after 6-month PAP treatment at the HCC. The PT strategy was constituted by a higher follow-up frequency as well as by aerobic physical fitness tests. The analysis was based on an RCT with a three-year time horizon, including 190 patients aged 27-77 with metabolic risk factors. The cost per QALY for the PT strategy compared to the HCC strategy was USD 16,771 with a societal perspective (including individual PA expenses, production loss and time cost for exercise, as well as healthcare resource use) and USD 33,450 with a healthcare perspective (including only costs related to healthcare resource use). Assuming a willingness-to-pay of USD 57,000 for a QALY, the probability of cost-effectiveness for the PT strategy was 0.5 for the societal perspective and 0.6 for the healthcare perspective. Subgroup analyses on cost-effectiveness based on individual characteristics regarding enjoyment, expectations and confidence indicated potential in identifying cost-effective strategies based on mediating factors. However, this needs to be further explored. In conclusion, both PT and HCC interventions are similar from a cost-effectiveness perspective, indicating that both strategies are equally valuable in healthcare's range of treatments.

Association between SARS-CoV-2 infection and the physical fitness of young-adult cadets: a retrospective case–control study

ObjectivesTo determine the association of symptomatic and asymptomatic mild COVID-19 and the SARS-CoV-2 viral load with the physical fitness of army cadets.DesignA retrospective case–control study.SettingOfficers’ Training School of the Israel...

Health associations with meeting the new Canadian 24-Hour Movement Guidelines recommendations according to body mass index classes in Canadian adults.

Data on meeting the Canadian 24-Hour Movement Guidelines for adults (24-H Guidelines) and associations with health indicators by body mass index (BMI) class are needed to support public health surveillance. The aim of this study was to describe the proportion of Canadian adults meeting individual and various combinations of the 24-H Guidelines by BMI class and their association with health indicators. Data from the cross-sectional Canadian Health Measures Survey cycles 1 to 4 (2007 to 2015, n = 10,515 adults aged 18 to 79 years) were used. Daily time spent in moderate-to-vigorous physical activity (MVPA) and sedentary behaviour were assessed using accelerometry. Sleep duration, recreational screen time, chronic conditions, sociodemographic characteristics, and general and mental health were self-reported. The BMI, waist circumference, blood pressure and aerobic fitness were directly measured. Respondents were classified as meeting the 24-H Guidelines when: • the MVPA was 150 minutes per week or more; • sedentary time was nine hours or less per day; • recreational screen time was three hours or less per day; • sleep duration was seven to nine hours per day for individuals aged 18 to 64 years or seven to eight hours per day for individuals aged 65 years and older. Significantly fewer adults with overweight (6.1%) or class I (4.3%) and class II or III (3.9%) obesity met all three 24-H Guidelines compared with those with normal weight (9.5%). Meeting all three or two recommendations of the 24-H Guidelines was generally associated with a lower waist circumference, higher aerobic physical fitness and self-perceived general health regardless of BMI class. Canadian adults living with overweight and obesity are less likely to meet the 24-H Guidelines. Most of the benefits associated with meeting the 24-H Guidelines are observed regardless of BMI status.

Analysis of G-test Results According to Fatigue, Physical Fitness and Body Composition of Air Force Cadets Using Smart Watches

PURPOSE: This study aimed to analyze the G-test results based on body composition and heart rate of fourth grade Air Force cadets, identify the relationships among body composition, heart rate, and G-resistance, and provide basic data for pilots and Air Force cadets to strengthen the G-tolerance.METHODS: This study used wearable devices to measure the heart rate and fatigue of 27 fourth-grade cadets of the Air Force Academy. Physical composition and physical fitness were assessed. Based on the measurement results, G-test result analysis and correlation analysis were performed.RESULTS: G-test results showed a steady heart rate (p=.015), deep sleep time (p<.001), and fatigue (p=.008) which have significant differences. Further, a 10-second heart rate at G-test (p<.001) and maximum heart rate (p<.001). There was also a statistically significant difference.CONCLUSIONS: Effective G-test success for Air Force cadets would require improving aerobic performance, continuous fatigue, and physical fitness management. If various variables that affect G-test are analyzed and applied to physical education and physical training through continuous research over the next 2–3 years, it is expected to have a better outcome on the G-test success for every cadet.

Investigation of Aerobic and Muscular Fitness and Concussion Among Service Academy Cadets at the United States Air Force Academy: Results from the CARE Consortium.

Concussion has become the signature injury facing the U.S. military. However, little is understood about the relationship between military fitness and concussion recovery. The current study examined the recoveries of cadets at a U.S. Service Academy to determine whether preinjury physical fitness improved recovery and whether recovery was associated with post-injury physical fitness measures. Participants were enrolled in a longitudinal study of concussion. Aerobic Fitness Test (AFT) and Physical Fitness Test (PFT) data were used to estimate cadet fitness. Survival analysis evaluated significant estimators of concussion recovery time. Linear regression models were used to explore the relationship between recovery duration and change in physical fitness scores. Between 2014 and 2017, 307 (n = 70; 22.80% Women) cadets who had sustained a concussion were enrolled. Preinjury physical fitness was not significantly associated with recovery duration (P > .05). Men and intercollegiate cadets took fewer days to reach recovery milestones. Compared to women, men had greater decrements in the Aerobic Fitness Test total score (P < .05) and increased 1.5-mile time postconcussion (P < .05). Women had greater decreases in push-ups postconcussion compared to males (P < .05). There was a trend for a negative association between days until asymptomatic and change in the Physical Fitness Test score (P = .07). Preconcussion physical fitness levels do not appear to impact concussion recovery time among a highly physically fit cohort. Possible methods to reduce the effect of symptom duration on strength-related physical fitness should be investigated along with evaluating reductions in strength as a possible mechanism for postconcussion injury risk.

Influence of Tobacco on Physical Fitness Recovery of College Students After Sports

Objectives: In this paper, the effects of tobacco on aerobic exercise ability and physical fitness recovery of college students were studied. Methods: University group sports intervention form: traditional characteristic project (basketball) + Taiji soft ball (R&amp;D intervention project). Exercise time: 3 times/week; Activity duration: 30min; Activity intensity: the heart rate is controlled at 120-140 beats/min. All the college students in the experimental group are students who have never smoked, and the college students in the control group are students who have smoked for more than two years. The other conditions are the same. Results: The exercise time and endurance of experimental groups I and II were significantly lower than those of the control group, and the cardiopulmonary function was significantly lower than that of the control group. The indexes of experimental group II changed significantly compared with experimental group I, and the difference was statistically significant. Conclusion: Cigarette smoke can significantly reduce the aerobic exercise ability and anti fatigue ability. The longer the smoking time, the more serious the adverse effects. Therefore, tobacco smoke and nicotine will damage college students’ aerobic exercise ability and have a negative impact on the recovery of physical fitness after exercise.

The Effect of Whole-Body Compression Garments on Aerobic and Anaerobic Performance, 3-km Running Record and Physical Fitness in Amateur Marathoners

The purpose of this study was to determine the effect of whole-body compression garments on aerobic and anaerobic performance, 3-km running record and physical fitness in amateur marathoners. Ten male amateur marathoners without any medical problems were measured compression garments following non-compression garments intervention (n=10, age: 25.40±2.72 yrs.; height: 173.71±3.52 cm; weight: 70.55±7.16 kg; body mass index: 23.34±1.70). The compression and non-compression garments intervention were conducted at weekly intervals. We measured aerobic and anaerobic performance, 3-km running record, and the physical fitness according to each intervention. As a result, VO2max, total exercise duration, anaerobic threshold were significantly higher in compression intervention than non-compression intervention. Also, minimum power was significantly higher in compression intervention than non-compression intervention. 3-km running performance was significantly faster in compression intervention than non-compression intervention. In addition, side-step was significantly faster in compression intervention than non-compression intervention. In conclusion, present study finding suggest that whole-body compression garments is beneficial to enhance aerobic performance and physical fitness.

Isokinetic Muscular Strength and Aerobic Physical Fitness in Recreational Long-Distance Runners: A Cross-Sectional Study.

Andrade, MS, Silva, WA, de Lira, CAB, Mascarin, NC, Vancini, RL, Nikolaidis, PT, and Knechtle, B. Isokinetic muscular strength and aerobic physical fitness in recreational long-distance runners: A cross-sectional study. J Strength Cond Res 36(3): e73-e80, 2022-Muscular strength, bilateral asymmetry, and imbalance between antagonist muscles have been considered as risk factors for knee injuries. Moreover, muscular strength has also been associated with aerobic performance. The aim of the study was to investigate bilateral muscular symmetry and muscular strength balance assessed by isokinetic dynamometry in recreational long-distance runners and to verify whether knee muscular strength would be associated with maximal oxygen uptake (V̇o2max), anaerobic threshold (AT), and running economy (RE). Thirty-nine runners (male [n = 24]: age, 30 ± 8 years; height, 176.0 ± 7.3 cm; body mass, 70.3 ± 8.0 kg; race pace below 4:30 min·km-1 and female [n = 15]: age, 31 ± 7 years; height, 163.0 ± 3.8 cm; body mass, 55.9 ± 4.7 kg; race pace below 5:00 min·km-1) participated in this study. Comparing the conventional knee balance ratio with the literature recommendation (60%), male runners presented significantly lower values for the nondominant side (55.5 ± 7.3%; p = 0.001; d = 0.85; confidence interval [CI] = 0.47 to 1.20) but not for the dominant side (58.1 ± 6.8%; p = 0.208; d = 0.37; CI = -0.12 to 0.86). Female runners presented lower values for both sides (52.1 ± 7.1%; p = 0.001; d = 1.55; CI = 0.86 to 2.20 and 50.7 ± 8.0%; p = 0.001; d = 1.62; CI = 0.90 to 2.30 for dominant and nondominant sides, respectively). Female and male runners presented nonfunctional ratio imbalance and asymmetry of bilateral strength. Strength outcomes were not associated with V̇o2max, AT, or RE. In conclusion, recreational runners were characterized by an imbalance in muscular strength between knee flexor and extensor muscles, which was more obvious in female runners, and by symmetrical thigh muscle strength values. Moreover, muscular isokinetic knee flexor and extensor muscle strength was not associated with aerobic fitness parameters.

Relative Age Effect in Physical Fitness of South Portugal Students between 10 and 18 Years Old.

Relative age is a phenomenon broadly studied in sport sciences. Youth sports participants born earlier in the selection year tend to present a maturational advantage over their peers. As it is also dependent on physical performance, older physical education students may also benefit from this effect in this school subject. The main goal of this manuscript was to determine whether the relative age effect is present within physical fitness outcomes of Portuguese children and adolescents. The physical–aerobic fitness, strength, flexibility and body composition of 885 students (490 females and 395 males) were collected and compared by quarters of birth, segmented by gender and age groups (10–12; 12–14; 14–16 and 16–18 years). The results reveal a moderate to small effect in physical fitness outcomes, with a trend for children and adolescents born in the early part of the year to present higher performance levels. These differences were more evident in ages closer to the physical maturational onset (12–14 y) and more apparent in male students. This physical fitness advantage may lead to a biased assessment and development of students born earlier in the year.

Cytokine profile in cerebrospinal fluid of elderly individuals is modulated by three‐month exercise intervention, in parallel with improvements of physical fitness and cognitive functions

AbstractBackgroundPhysical inactivity accelerates ageing‐associated cognitive decline while regular physical exercise improves neurocognitive health, in parallel with improvements of physical fitness and whole‐body metabolism. However, the knowledge on putative bioactive molecules, mediators of exercise benefits in human brain is still very limited. Our aim was to evaluate effects of the aerobic‐strength training intervention on the spectrum of chemokines/cytokines in the cerebrospinal fluid (CSF) of elderly individuals.MethodThe CSF from the subgroup of ten elderly individuals (1M/9F; controls/MCI patients 4/6; age = 65.7 ± 3.9yrs; BMI = 25.8 ± 3.5 kg/m2), who underwent 3‐month supervised aerobic‐strength training (3 × 1 h/week), was obtained by the atraumatic lumbar puncture technique before and after training intervention. Levels of 174 chemokines/cytokines were measured with the aid of the cytokine array (RayBiotech). Body weight and composition (Dual‐energy x‐ray absorptiometry/DEXA), BMI, physical fitness (VO2max, Rockport walk test) and cognitive functions (Addenbrooke's Cognitive Examination/ACE‐R, Trail making test A/TMT‐A, computerized cognitive test Cogstate) were assessed.ResultAerobic‐strength training improved aerobic fitness (VO2max, p = 0.03), cognitive functions (ACE‐R score, p = 0.0033; TMT‐A time score, p = 0.027; Learning/working memory, p = 0.016; Visual learning, p = 0.03) and reduced gynoid fat mass (p = 0.01). Three‐month supervised aerobic‐strength training intervention significantly modulated 5 out of 174 examined cytokines in CSF of the elderly individuals. Levels of 2 cytokines were increased by +11.7% and +11.3%, respectively (both p &lt; 0.05), and another three cytokines displayed reduced levels &gt;5% (p &lt; 0.05 for all) in response to training. All distinctly regulated cytokines have previously been shown to be involved in the regulation of neuroinflammation, blood‐brain‐barrier integrity, and neuroprotection.ConclusionSupervised 3‐month aerobic‐strength training improved aerobic physical fitness and cognitive functions in the elderly. The distinct modulation of chemokines and cytokines in cerebrospinal fluid in response to training intervention could indicate a role of these bioactive molecules in the exercise‐induced adaptive response in human brain. Funding: APVV 15/0253, VEGA 2/0107/18, SAS‐MOST JRP 2018/10.

Myosteatosis is associated with poor physical fitness in patients undergoing hepatopancreatobiliary surgery

Background: Body composition assessment, measured using single computed tomography (CT) slide at L3 level, and aerobic physical fitness, objectively measured using cardiopulmonary exercise testing (CPET), are each independently used for perioperative risk assessment. Both sarcopenia (i.e. low skeletal muscle mass), myosteatosis (i.e. low skeletal muscle radiation attenuation) and impaired objectively measured aerobic fitness (reduced oxygen uptake) have been associated with poor post-operative outcomes and survival in various cancer types. However, the association between CT body composition and physical fitness has not been explored. In this study, we assessed the association of CT body composition with selected CPET variables in patients undergoing hepatobiliary and pancreas surgery. Methods: A pragmatic prospective cohort of 123 patients undergoing hepatobiliary and pancreas surgery were recruited. All patients underwent preoperative CPET. Preoperative CT-scans were analysed using a single CT-slice at L3 level. Multivariate linear regression was used to test the association between CPET variables and body composition. Main outcomes were oxygen uptake at anaerobic threshold (VO2 at AT), oxygen uptake at peak exercise (VO2 peak), skeletal muscle mass and skeletal muscle radiation attenuation (SM-RA). Results: One-hundred-and-thirteen patients were included. Of the CT-body composition variables, SM-RA had the strongest correlation with VO2 peak (r=0.57, p<0.001) and VO2 at AT (r=0.45, p<0.001) while skeletal muscle mass was only weakly associated with VO2 peak (r=0.24, p<0.010). In multivariate analysis, only SM-RA was associated with VO2 Peak (B=0.25, 95%-CI 0.15-0.34, p<0.001, R2=0.42) and VO2 at AT (B=0.13, 95%-CI 0.06-0.18, p<0.001, R2=0.26). Conclusion: There is a positive association between preoperative CT SM-RA and preoperative physical fitness (VO2 at AT and at Peak). This study demonstrates that myosteatosis, and not sarcopenia, is associated with reduced aerobic physical fitness. Combining both myosteatosis and physical fitness variables may provide additive risk stratification accuracy and guide interventions during the perioperative period.

Effects of Brisk Walking Combined with Green Tea Extract on the Aerobic Capacity and Physical Fitness Function in Overweight and Obese Men: A Randomized, Double-Blind, Placebo-Controlled Trial

In the present study we investigated the effects of brisk walking combined with GTE ingestion on the physical fitness function and aerobic capacity of inactive overweight and obese men. Participants were randomly assigned to the GTE group (150 mg GTE/tablet, twice/day) or the placebo group. All subjects in the GTE group (n = 12) or placebo group (n = 12) took part in the 12-week intervention program, and were followed for 4 weeks post-intervention. All variables were measured at week 0, week 12 and week 16. We found a significant increase in the aerobic capacity in both groups (P P P balance.

The Influence of ACTN3 Gene Polymorphism on VO2max and Sprint Speed Based on Sprint Interval Training Intervention

It is known that one of the physical fitness factors is a non-modifiable genetic factor, one of which is the ACTN3 gene. The influence of this gene polymorphism on physical fitness response, both aerobic and anaerobic, to intervention is still limited. Sprint Interval Training (SIT) as one intervention factor enhances physical fitness, both aerobic and anaerobic. The research aims at observing whether ACTN3 gene polymorphism influences VO2max and Sprint Speed with SIT intervention. VO2max is a parameter of aerobic physical fitness, while sprint speed is a parameter of anaerobic physical fitness. Twenty-eight male students of 18-25 years old were taken as the research’s subjects from the Student Activity Unit of Sports of Jenderal Soedirman University using the consecutive sampling method. The subjects were divided by genotypes identified using a PCR-RFLP method into three groups, namely RR, RX, and XX. All samples undertake three sessions of SIT per week for five weeks with work to rest ratio (W:R) = (1:8). Before and after undertaking SIT regimen, the subjects were examined for VO2max using a Multi-Stage Fitness Test method and for speed using a Sprint 30 m method. The analysis was conducted using a One-Way ANOVA test at a significance level of 0.05. There was a significant difference at mean value VO2MAX (p=0.033) and speed (p=0.048) with each genotype group, and the highest change takes place with the genotype group RR. Study concluded that ACTN3 gene polymorphism influences a change in VO2MAX and speed after Sprint Interval Training intervention.

ROLE OF PHYSIOTHERAPY IN IMPROVING QUALITY OF LIFE IN LIVER TRANSPLANT PATIENTS

Objective: To evaluate the impact of pre and early post operative physical therapy on quality of life (QOL) in patients of liver transplantation. Methods and materials: A Single group pre and post experimental study design was conducted in Shifa International Hospital in which 20 patients with cirrhotic liver waiting for transplant participated. Non probability Convenience Sampling technique was used. Data was collected over a period of six months using a standard questionnaire 36-Item Short Form Survey (SF-36)and a General demographic questionnaire which included age, gender, BMI, along with diabetes, hypertension, ECOG level, tidal volume, muscle power, 6 minute walk test(heart rate, SpO2, distance covered, exertion level measurement). Results: The mean ± SD age &amp; Body Mass Index of the participants (N=20) were 47.20 ± 11.49 years and 24.83 ± 2.1 respectively. 6 Minute Walk Test Heart Rate, 6 Minute Walk Test Distance, , ECOG, 6 Minute Walk Test Exertion Level and Muscle power were shown significantly improved throughout the treatment duration (p&lt;0.001). While 6 Minute Walk Test Oxygen Saturation showed significant improvement only in initial two weeks (p=0.01), but at the end of 2nd week and overall improvement was not significant (p≥0.05). The results of the study also showed significant improvement (p&lt;0.001) in all domains of quality of life (SF-36) at the end of study. Conclusion: The study indicated that early pre and post physiotherapy interventions can improve the overall health-related quality of life including the aerobic physical fitness and muscle strength in patients having liver transplantation Keywords: 6 minute walk test, ECOG, Incentive spirometry, Liver transplantation, Muscle power, Physiotherapy, Quality of life.

Comparing the Aerobic Fitness of Professional Male Soccer Players and Soccer Referees.

We looked to compare the aerobic performance between professional soccer referees and players. Fifty male soccer referees and 61 male soccer players were tested on a treadmill. The referees and players possessed 15 ± 7 years and 7 ± 3 years of experience in soccer, respectively. Significant differences were observed between the referees and players with regards to: age (34.8 ± 4.6 years vs 20.8 ± 2.7 years; P < 0.001, maximum oxygen uptake (54.7 ± 5.4 mL·kg·min vs 58.8 ± 4.4 mL·kg·min; P < 0.001), and maximal heart rate in peak exercise (184 ± 11 bpm vs 192 ± 9 bpm, P < 0.001). Less significant differences also were observed and included; running speed at the maximum oxygen uptake (16.6 ± 1 km·h vs 16.4 ± 1.1 km·h), running speed at the ventilatory threshold (213.5 ± 1.1 km·h vs 13.2 ± 0.9 km·h), and percentage of maximal oxygen uptake at the ventilatory threshold (285.1% ± 3.2% vs 84.1% ± 6.2%). The effect size of most comparative variables between the two groups was small (<0.6). Older elite-level soccer referees are able to reach and maintain aerobic physical fitness levels similar to professional soccer players. Aerobic physical fitness may be a measurable factor for maintaining elite-level soccer licensure rather than age alone.

Physical Fitness Training in Patients with Subacute Stroke (PHYS-STROKE): multicentre, randomised controlled, endpoint blinded trial

ObjectiveTo determine the safety and efficacy of aerobic exercise on activities of daily living in the subacute phase after stroke.DesignMulticentre, randomised controlled, endpoint blinded trial.SettingSeven inpatient rehabilitation sites in Germany...

Olympic Distance Amateur Triathlete Chronotype Profile

It seems that the athletes tend to select and pursue sports that suited their chronotype. Elite triathletes show to comprise high proportions of morning-types (MTs), differently from general population. Possibly the early morning training sections, characteristics in this sport modality, favors athletes presenting morning types profile. There are no data about amateur triathletes chronotype, but probably there are also a high percentage of morning type, mainly because the training sessions occur even earlier, once amateurs need to work after the training. As the training sessions occur early in the morning, it is possible for morning-type athletes are able to develop higher intensity trainings and thus having better physiological adaptations. However, there are no data about chronotypes and physiological profile. PURPOSE: Characterize the chronotype profile in a group of triathlon amateur competitors who participate in the Olympic distance triathlon race. Verify if there are association between chronotype profile and physical fitness in amateur triathletes. METHODS: Thirty-nine men and six women who had subscribed to compete in the sixth stage of the 26thBrazil Triathlon Trophy (26o Troféu Brasil de Triathlon) in the Olympic distance participated in this cross-sectional observational study. Participants were evaluated for anthropometric characteristics (body mass, height, and body composition through [DXA]), aerobic physical fitness (maximum oxygen consumption [V ̇O2max], anaerobic threshold and respiratory compensation point, maximum aerobic velocity [MAV] and running economy [RE]). Chronotype profile was evaluated using Horne-Ostberg morning-eveningness questionnaire. RESULTS: According to the chronotype questionnaire 66.7% of the volunteers (69.2% men and 50.0% women were classified as morning profiles (22.2% definite morning and 44.4% as moderate morning) and only 6.7% were classified as evening profiles. There were no significant correlations between chronotype profiles and the physical fitness variables. CONCLUSIONS: Amateur triathletes show to comprise high proportions of morning-types, but the physiological profile is similar between the different existing chronotypes.

Myosteatosis is associated with poor physical fitness in patients undergoing hepatopancreatobiliary surgery.

BackgroundBody composition assessment, measured using single‐slice computed tomography (CT) image at L3 level, and aerobic physical fitness, objectively measured using cardiopulmonary exercise testing (CPET), are each independently used for perioperative risk assessment. Sarcopenia (i.e. low skeletal muscle mass), myosteatosis [i.e. low skeletal muscle radiation attenuation (SM‐RA)], and impaired objectively measured aerobic fitness (reduced oxygen uptake) have been associated with poor post‐operative outcomes and survival in various cancer types. However, the association between CT body composition and physical fitness has not been explored. In this study, we assessed the association of CT body composition with selected CPET variables in patients undergoing hepatobiliary and pancreatic surgery.MethodsA pragmatic prospective cohort of 123 patients undergoing hepatobiliary and pancreatic surgery were recruited. All patients underwent preoperative CPET. Preoperative CT scans were analysed using a single‐slice CT image at L3 level to assess skeletal muscle mass, adipose tissue mass, and muscle radiation attenuation. Multivariate linear regression was used to test the association between CPET variables and body composition. Main outcomes were oxygen uptake at anaerobic threshold ( V˙O2 at AT), oxygen uptake at peak exercise ( V˙O2 peak), skeletal muscle mass, and SM‐RA.ResultsOf 123 patients recruited [77 men (63%), median age 66.9 ± 11.7, median body mass index 27.3 ± 5.2], 113 patients had good‐quality abdominal CT scans available and were included. Of the CT body composition variables, SM‐RA had the strongest correlation with V˙O2 peak (r = 0.57, P < 0.001) and V˙O2 at AT (r = 0.45, P < 0.001) while skeletal muscle mass was only weakly associated with V˙O2 peak (r = 0.24, P < 0.010). In the multivariate analysis, only SM‐RA was associated with V˙O2 peak (B = 0.25, 95% CI 0.15–0.34, P < 0.001, R 2 = 0.42) and V˙O2 at AT (B = 0.13, 95% CI 0.06–0.18, P < 0.001, R 2 = 0.26).ConclusionsThere is a positive association between preoperative CT SM‐RA and preoperative physical fitness ( V˙O2 at AT and at peak). This study demonstrates that myosteatosis, and not sarcopenia, is associated with reduced aerobic physical fitness. Combining both myosteatosis and physical fitness variables may provide additive risk stratification accuracy and guide interventions during the perioperative period.

Validade critério do Netherland Physical Activity Questionnaire para crianças

Physical activity measurement with accuracy and precision is extremely important in establishing the dose-response relationship between levels of physical activity and the different outcome possibilities. Subjective methods of measurement, such as proxy-reports have been used as a possibility to check physical activity in children. The aim of this study was to test the Netherlands Physical Activity Questionnaire (NPAQ), valid for Brazilian schoolchildren using physical aerobic fitness as a criterion. The study included 290 children aged 6-10 years from public schools of Itauna/MG. NPAQ was applied to parents or guardians and children were tested using the Luc Leger test. NPAQ had mean score of 25 for children (25 for boys and 24 for girls) and VO2max was 50.8 ml/kg/min for children (52.6 and 50.2 ml/kg/min for boys and girls, respectively). The Spearmam correlation test showed significant correlation (rsho = 0.146; p = 0.013) between NPAQ and VO2max, but the correlation is weak (Kappa -0.14). The results showed that NPAQ presented poor construct validity for physical activity measurement in a Brazilian schoolchildren sample, based on aerobic physical fitness criteria.

Validade critério do Netherland Physical Activity Questionnaire para crianças

Physical activity measurement with accuracy and precision is extremely important in establishing the dose-response relationship between levels of physical activity and the different outcome possibilities. Subjective methods of measurement, such as proxy-reports have been used as a possibility to check physical activity in children. The aim of this study was to test the Netherlands Physical Activity Questionnaire (NPAQ), valid for Brazilian schoolchildren using physical aerobic fitness as a criterion. The study included 290 children aged 6-10 years from public schools of Itaúna/MG. NPAQ was applied to parents or guardians and children were tested using the Luc Léger test. NPAQ had mean score of 25 for children (25 for boys and 24 for girls) and VO2max was 50.8 ml/kg/min for children (52.6 and 50.2 ml/kg/min for boys and girls, respectively). The Spearmam correlation test showed significant correlation (rsho = 0.146; p = 0.013) between NPAQ and VO2max, but the correlation is weak (Kappa -0.14). The results showed that NPAQ presented poor construct validity for physical activity measurement in a Brazilian schoolchildren sample, based on aerobic physical fitness criteria.