Associations Of Physical Fitness Research Articles

Associations of Physical Fitness with Cognitive Performance in Children Aged 7–12 Years: A Cross-Sectional Study

Associations of Physical Fitness with Cognitive Performance in Children Aged 7–12 Years: A Cross-Sectional Study

Associations of physical fitness with cortical inhibition and excitation in adolescents and young adults.

We investigated the longitudinal associations of cumulative motor fitness, muscular strength, and cardiorespiratory fitness (CRF) from childhood to adolescence with cortical excitability and inhibition in adolescence. The other objective was to determine cross-sectional associations of motor fitness and muscular strength with brain function in adolescence. In 45 healthy adolescents (25 girls and 20 boys) aged 16-19 years, we assessed cortical excitability and inhibition by navigated transcranial magnetic stimulation (nTMS), and motor fitness by 50-m shuttle run test and Box and block test, and muscular strength by standing long jump test. These measures of physical fitness and CRF by maximal exercise were assessed also at the ages 7-9, 9-11, and 15-17 years. Cumulative measures of physical measures were computed by summing up sample-specific z-scores at ages 7-9, 9-11, and 15-17 years. Higher cumulative motor fitness performance from childhood to adolescence was associated with lower right hemisphere resting motor threshold (rMT), lower silent period threshold (SPt), and lower motor evoked potential (MEP) amplitude in boys. Better childhood-to-adolescence cumulative CRF was also associated with longer silent period (SP) duration in boys and higher MEP amplitude in girls. Cross-sectionally in adolescence, better motor fitness and better muscular strength were associated with lower left and right rMT among boys and better motor fitness was associated with higher MEP amplitude and better muscular strength with lower SPt among girls. Physical fitness from childhood to adolescence modifies cortical excitability and inhibition in adolescence. Motor fitness and muscular strength were associated with motor cortical excitability and inhibition. The associations were selective for specific TMS indices and findings were sex-dependent.

Association of Physical Fitness and Anthropometric Parameters With Lung Function in 7-Year-Old Children.

Associations between health-related parameters and lung function remain unclear in childhood. The study aims to evaluate the relationship between physical fitness and anthropometric parameters with the lung function of healthy scholar-aged children. A total of 418 children aged 7years old participated in this study. The associations of physical fitness (handgrip strength, standing broad jump, and 800-m run) and anthropometric (waist circumference and body mass index) parameters with lung function (forced vital capacity and forced expiratory volume in 1s) were analyzed using a mixed-linear regression model. Girls had significantly lower forced vital capacity values (P = .006) and physical fitness (P < .030) compared to boys. On mixed-linear regression analyses, waist circumference (P = .003) was independently associated with forced vital capacity, explaining 34.6% of its variance, while handgrip strength (P = .042) and waist circumference (P = .010) were independently associated with forced expiratory volume in 1second, accounting together for 26.5% of its variance in 7-year-old healthy children. Handgrip strength and waist circumference were associated with lung function in healthy children highlighting the influence of upper body muscular strength and trunk dimension on lung function. Our results corroborate the need to promote physical fitness during childhood to protect against lung complications in later on in life.

Mediating Effect of Motivation on the Relationship of Fitness with Volitional High-Intensity Exercise in High-School Students.

We aimed to investigate the relationship between physical fitness and motivation in adolescents and analyze if the associations of physical fitness with volitional exercise intensity in adolescents are mediated by motivation. The participants were 108 adolescents (58 girls 16.0 ± 0.92 years). Cardiorespiratory fitness (CRF) was assessed using the Yo-YoITL1, and the push-up test was used to evaluate strength. Body composition was measured by bioelectrical impedance analysis. The intervention was applied in the first 10-15 min of each Physical Education class (PEC), twice a week, for 16 weeks and ranged from 14 to 20 all-out bouts intervals, adopting a 2:1 work to rest ratio. A cut-point of ≥90% of the maximal heart rate (HR) was used as a criterion for satisfactory compliance with high-intensity exercise. Volition intensity was assessed through a forearm wearable plethysmography heart rate sensor to ensure compliance with the exercise stimulus at the predetermined target HR zone. Motivation was estimated with a validated questionnaire (BREQ-3). Mediation effects were estimated using bootstrapped 95% confidence intervals and were deemed significant if zero was not included in the intervals, and values below 0.05 were considered to indicate statistical significance. The mediation analysis revealed a non-significant indirect effect of physical fitness through motivation on exercise intensity, specifically on CRF (B = -0.0355, 95% BootCI [-0.5838; 0.4559]), muscular fitness (B = -0.7284, 95% BootCI [-2.0272; 0.2219]) and body fat (B = 0.5092, 95% BootCI [-0.4756; 1.6934]). These results suggest that high or low values of motivation did not increase or decrease volitional high-intensity exercise, and lower levels of fitness (CRF, muscular and body fat) were associated with higher volitional exercise intensity. These findings highlight the need for regular moderate-to-vigorous physical exercise for maintaining or improving physical fitness, regardless of motivation regulations, and emphasize the importance of new strategies in PEC with acute vigorous-intensity activities that retain the health-enhancing effects.

Association of Physical Exercises with Anthropometric Parameters and Blood Pressure Among Medicals Students: A Prospective Study in Jammu

Background: Physical inactivity is one of the major risk factors for the rise in cardiovascular diseases and excessive body weight among people of all ages, particularly among adults, in both developed and developing nations, according to reports. This study examines the possible associations of physical fitness with anthropometric indices and cardiovascular parameters. Methods: The present study was conducted on 200 medical students at Postgraduate Department of Physiology, Government Medical College, Jammu over a period of one year from November 2019 to October 2020. Results: A total of 200 participants were enrolled in the current study, of whom 113 (56.5%) were women and 87 (43.5%) men. The study population's mean age was 21.48±3.46 years, with a range of 18 to 25 years. We observed that physical activity was significantly associated with BMI, WHR, SBP and DBP (p-value&lt;0.0001*). Conclusion: The present study demonstrated that the physical activity was significantly associated with BMI, WHR, systolic BP, and diastolic BP. The bottom line of the current study suggests that regular exercise lowers the risk of hypertension by aiding in weight management. Keywords: Exercise, body mass index, obesity, blood pressure, hypertension

Associations of Physical Fitness and Academic Achievement Among Illinois High School Students

The health benefits of physical activity are empirically supported and well accepted. However, the relationship between physical activity, physical fitness, and academic performance remains to be clearly established. The purpose of this study was to identify the relationship between physical fitness and academic achievement among a sample of Illinois high school students. Analyses were based on the 2016–2017 school year Archival Fitnessgram physical fitness test scores and cumulative GPAs of ninth- through twelfth-grade students (N = 371). Pearson correlation assessed the relationship between physical fitness and academic performance. Multiple linear regression predicted students’ academic achievement. There was a positive association between total fitness and academic achievement, although not statistically significant, r (369) = .002, p = .49. The regression prediction model was statistically significant (p &lt; .001) and accounted for approximately 25% of the variance in academic achievement (R2 = .256, adjusted R2 = .246). Academic achievement was predicted by total number of absences and gender, and to a lesser extent by socio­economic status, the curl-up, and ethnicity. The findings of this study suggest a positive association between physical fitness and academic achievement. These results are potentially relevant to the development of future education policies. Thus, policy makers, school administrators, and educators must use the knowledge gained in this study, along with existing research, as evidence to emphasize the importance of the fitness–academic link, to further support the need for quality physical education curriculum and mandated physical fitness testing.

Associations of physical fitness and physical activity with sleep among middle-aged women

Sleep is an important component of health. Sleep disturbances increase in women as they enter menopause. Physical activity has been associated with improved sleep among older populations. The purpose of this study was to determine if physical activity and/or physical fitness are associated with sleep quantity and quality in middle-aged women. This study recruited 114 healthy women, aged 30-55 (43±8 y) from Saskatoon, Saskatchewan, from 2015-2019. Sleep quantity and quality were evaluated. Participants were classified on their aerobic fitness, based on estimated peak aerobic capacity, as high or low grip strength and, as active or inactive. The high aerobic fitness group had a greater mean sleep duration of 7.04±1.02 h compared to the low fit group 6.61±1.00 h after adjusting for age, Body Mass Index, waist circumference and menstrual status (P=0.01). The percentage of high aerobic fitness women who felt rested was greater than low aerobic fitness women (67±6% vs. 45±7%, P=0.03), after adjusting for age, Body Mass Index, waist circumference and menstrual status. Our study found a significant difference between women with higher aerobic fitness levels getting more sleep each night and feeling more rested. The continued examination of physical fitness and its relationship to sleep holds importance for women's health.

Physical fitness in relation to later body composition in pre-school children

ObjectivesAlthough physical fitness is considered a marker of health in youth, little is known whether physical fitness in pre-school age is related to later body composition. Thus, this study investigated (i) associations of physical fitness at 4.5years of age with body composition 12months later and (ii) whether improvements in physical fitness during the 12-month follow-up were associated with changes in body composition. DesignThis study included 142 children, measured at 4.5 and 5.5years, from the control group of the MINISTOP trial. MethodsPhysical fitness (cardiorespiratory fitness, lower- and upper-body muscular strength and motor fitness) was measured using the PREFIT test battery. Body composition was assessed using air-displacement plethysmography. ResultsIn adjusted regression analyses, greater cardiorespiratory fitness, lower-body muscular strength and motor fitness at 4.5years were associated with a lower fat mass index at 5.5years (standardized β=−0.182 to −0.229, p≤0.028). Conversely, greater cardiorespiratory fitness, lower- and upper-body muscular strength as well as motor fitness at 4.5years of age were associated with a higher fat-free mass index (standardized β=0.255–0.447, p≤0.001). Furthermore, improvements in cardiorespiratory fitness, lower-body muscular strength and motor fitness during the 12-month follow-up period were associated with decreases in fat mass index and/or % fat mass. ConclusionsIn conclusion, the results of this study provide evidence of the importance of physical fitness early in life. Nevertheless, further studies are needed in order to clarify the influence of physical fitness in the pre-school age with later health outcomes.

Associations of Physical Fitness and Body Composition Characteristics With Simulated Military Task Performance

Pihlainen, K, Santtila, M, Häkkinen, K, and Kyröläinen, H. Associations of physical fitness and body composition characteristics with simulated military task performance. J Strength Cond Res 32(4): 1089-1098, 2018-The purpose of this study was to evaluate the associations of physical fitness and body composition characteristics with anaerobic endurance performance, tested in the combat load using the occupationally relevant military simulation test (MST). Eighty-one male soldiers, deployed to a crisis management operation in the Middle East, volunteered for the study and participated in a test battery consisting measurements of muscle strength, body composition characteristics, endurance capacity, and MST. A Spearman correlational analysis revealed that the strongest variable, correlated with MST time, was the countermovement jump performed with the combat load (CMJ2) (rs = -0.66, p < 0.001). Among the individual body composition variables, the MST time had the strongest relationship with fat percentage (rs = 0.53, p < 0.001) and skeletal muscle mass (SMM) (rs = -0.47, p < 0.001). The use of the dead mass ratio, which was calculated dividing body mass by fat mass accompanied with the weight of the combat load, increased body composition-based associations significantly, and this variable turned out to be the best single predictor for the MST performance (rs = -0.67, p < 0.001). Significant predictors of the MST time in the stepwise multivariate regression analysis included CMJ2, 3000 m, SMM, and push-ups. Together, these variables explained 66% ((Equation is included in full-text article.), model p < 0.001) of the variance in the MST time. In conclusion, the novel MST is a promising military specific assessment method of muscle power of the lower extremities and endurance capacity, which are crucial performance components in anaerobic combat situations.

Association of perceived physical health and physical fitness in two Swedish national samples from 1990 and 2015.

Perceived physical health was related to physical fitness in two samples of Swedish adults from 1990 and 2015. However, multivariate and mutually adjusted models indicate that the most important covariates of perceived physical health may have changed from VO2 max and chronic illness in 1990, to age, BMI, and educational level in 2015.

Associations of Physical Fitness and Motor Competence With Reading Skills in 9- and 12-Year-Old Children: A Longitudinal Study

This longitudinal study explores the association of motor competence and physical fitness with reading skills in children aged 9 and 12 years. Sixty-seven children aged 9 years completed an assessment of motor competence (measured using the Movement Assessment battery for Children), physical fitness (assessed using the Test of Physical Fitness), and reading (measured using the Wordchain test). The testing procedures were repeated after 32 months. For the 9-year-old group, there was a low, negative correlation between motor competence and reading overall, r = −.031 (girls: r = −.207; boys: r = .180). Correlation between fitness and reading was also low (r = .064). Girls had a higher correlation between fitness and reading than boys (r = .404; 17.7% shared variance, vs. r = −.138). When the children were 12 years old, there was still a low association of motor competence and fitness with reading. These low associations can be used to support the task specificity principles of learning.

Assessment and Analysis of Physical Fitness Among Freshmen in Nanchang University

The purpose of this study was to investigate the general state and characteristics of physical fitness in undergraduates and to improve their physical health through effective measures. Methods: 6691 first-year students (3373 males and 3318 females) in Nanchang University participated in this study. Anthropometric measures and physical fitness tests were performed and assessed in accordance with the National student physical health standard revised in 2014 applied in China. The associations of physical fitness with BMI were examined by partial correlation. Results: More male students than female students were overweight and obese (12.27% vs 5.6%), (3.97% vs 1.51%). 17.37% of the participants failed the physical fitness assessment and female students performed significantly better than male students. Vital capacity, 1000m/800m run and pull-up/sit-up were found relatively poorer, in which the pull-up in male students (mean score was only 15.40) is the most alarming. The results of all physical fitness tests, except for vital capacity and sit-and-reach, were significantly negatively correlated with body mass index (p<0.001). Conclusions: This study shows the fact that freshmen in Nanchang University performed worse in muscular strength, muscular endurance and cardiorespiratory fitness. Being overweight and obese may negatively affect physical fitness of college students. Scientific and specific physical training and education programs must be laid down to promote the development of physical fitness of undergraduates.

Associations of Physical Fitness and Physical Activity with Metabolic Syndrome in Korean

Associations of Physical Fitness and Physical Activity with Metabolic Syndrome in Korean

Associations of Physical Fitness and Academic Performance Among Schoolchildren*

Public schools provide opportunities for physical activity and fitness surveillance, but are evaluated and funded based on students' academic performance, not their physical fitness. Empirical research evaluating the connections between fitness and academic performance is needed to justify curriculum allocations to physical activity programs. Analyses were based on a convenience sample of 254,743 individually matched standardized academic (TAKS™) and fitness (FITNESSGRAM(®) ) test records of students, grades 3-11, collected by 13 Texas school districts. We categorized fitness results in quintiles by age and gender and used mixed effects regression models to compare the academic performance of the top and bottom fitness groups for each test. All fitness variables except body mass index (BMI) showed significant, positive associations with academic performance after adjustment for socio-demographic covariates, with standardized mean difference effect sizes ranging from .07 to .34. Cardiovascular fitness showed the largest interquintile difference in TAKS score (32-75 points), followed by curl-ups. Additional adjustment for BMI and curl-ups showed dose-response associations between cardiovascular fitness and academic scores (p < .001 for both genders and outcomes). Analysis of BMI demonstrated limited, nonlinear association with academic performance after socio-demographic and fitness adjustments. Fitness was strongly and significantly related to academic performance. Cardiovascular fitness showed a dose-response association with academic performance independent of other socio-demographic and fitness variables. The association appears to peak in late middle to early high school. We recommend that policymakers consider physical education (PE) mandates in middle high school, school administrators consider increasing PE time, and PE practitioners emphasize cardiovascular fitness.

Usefulness of Physical Fitness and the Metabolic Syndrome to Predict Vascular Disease Risk in Older Chinese (from the Guangzhou Biobank Cohort Study-Cardiovascular Disease Subcohort [GBCS-CVD

Physical fitness can independently lower the risk of cardiovascular disease (CVD). We explored the independent and combined associations of physical fitness, measured using the seated at rest heart rate (RHR), and the metabolic syndrome (MS), with CVD risk, as described by an elevated pulse wave velocity (PWV) in older Chinese. Data from 1,996 participants were drawn from the Guangzhou Biobank Cohort Study-Cardiovascular Disease Subcohort. Analysis of variance and logistic regression analysis were used to establish the independent and combined associations of the RHR and the MS with PWV. The RHR was independently associated with an elevated PWV (odds ratio [OR] 1.63, 95% confidence interval [CI] 1.22 to 2.18), as was the MS (OR 2.36, 95% CI 1.76 to 3.17). The participants with a high RHR, but without the MS, had an adjusted OR of 1.63 (95% CI 1.15 to 2.30) for the presence of the CVD proxy. Those with a low RHR and the MS had an adjusted OR of 2.35 (95% CI 1.66 to 3.33). The risk of an elevated PWV increased almost fourfold with both a high RHR and a diagnosis of the MS (OR 3.87, 95% CI 2.39 to 6.28, p = 0.52 for interaction). In conclusion, physical fitness, measured using the RHR, and the MS are independently associated with an elevated PWV, a surrogate marker for CVD. The strength of this association was further increased in the presence of both. These findings confirm the beneficial effects of physical fitness on attenuating the risk of CVD among older Chinese.