scholarly journals Development of Cardiorespiratory Fitness Standards for Working Memory Using Receiver Operating Curves In 15-Year-Old Adolescents

2020 ◽  
Author(s):  
Vinicius Muller Reis Weber ◽  
Daniel Zanardini Fernandes ◽  
Leonardo Alex Volpato ◽  
Maria Raquel Oliveira Bueno ◽  
Marcelo Romanzini ◽  
...  
Keyword(s):  
Working Memory ◽  
Cardiorespiratory Fitness ◽  
Memory Performance ◽  
Cross Sectional Study ◽  
Roc Curve Analysis ◽  
Cross Sectional ◽  
Run Test ◽  
Normal Performance ◽  
Shuttle Run ◽  
Receiver Operating

Abstract Working memory performance is associated with better academic achievements in children and adolescents, and it is positively related to CRF. However, what level of cardiorespiratory fitness (CRF) discriminates higher working memory performance is not known. The purpose of this study was to identify thresholds of CRF linked to working memory in adolescents. Data of 141 adolescents (53.2% girls) were collected (14.9 years) from a cross-sectional study during the year 2019. CRF was assessed by the 20-m shuttle run test, and maximal oxygen uptake were calculated by Mahar´s equation. Working memory was evaluated by the Corsi blocks test and the performance was classified by percentiles. Receiver operating characteristic (ROC) curve analysis was used to identify CRF thresholds. The results of ROC analysis indicated that CRF could be used to discriminate working memory in adolescents. CRF thresholds of ³45.03 ml.kg-1.min-1for boys and ³36.63 ml.kg-1.min-1for girls were found to be indicative of “normal” performance in working memory. ConclusionCRF could discriminate low and normal working memory performance in 14-16 years old adolescents. These thresholds could allow for earlier identification and intervention of low working memory performance by the CRF.

scholarly journals Development of cardiorespiratory fitness standards for working memory using receiver operating curves in 15-year-old adolescents

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Vinícius Muller Reis Weber ◽  
Daniel Zanardini Fernandes ◽  
Leonardo Alex Volpato ◽  
Maria Raquel de Oliveira Bueno ◽  
Marcelo Romanzini ◽  
...  
Keyword(s):  
Working Memory ◽  
Cardiorespiratory Fitness ◽  
Memory Performance ◽  
Cross Sectional Study ◽  
Roc Curve Analysis ◽  
Cross Sectional ◽  
And Performance ◽  
Run Test ◽  
Shuttle Run ◽  
Receiver Operating

Abstract Background Working memory performance is associated with better academic achievements in children and adolescents, and it is positively related to CRF. However, what level of cardiorespiratory fitness (CRF) discriminates higher working memory performance is not known. The purpose of this study was to identify CRF thresholds linked to working memory in adolescents. Methods Data of 141 adolescents (53.2 % girls) were collected (14.9 years) from a cross-sectional study during the year 2019. CRF was assessed by the 20-m shuttle run test, and maximal oxygen uptake was calculated using the Mahar´s equation. Working memory was evaluated by the Corsi blocks test and performance was classified by percentiles. Receiver operating characteristic (ROC) curve analysis was used to identify CRF thresholds. Results The ROC analysis indicated that CRF could be used to discriminate working memory in adolescents. CRF thresholds of ≥45.03 ml.kg− 1.min− 1for boys and ≥36.63 ml.kg− 1.min− 1for girls were found to be indicative of “normal” working memory performance. Conclusions CRF could discriminate low and normal working memory performance in 14-16- year-old adolescents. These thresholds could allow for earlier identification and intervention of low working memory performance using CRF.

scholarly journals Associations of mode and distance of commuting to school with cardiorespiratory fitness in Slovenian schoolchildren: a nationwide cross-sectional study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Gregor Jurak ◽  
Maroje Soric ◽  
Vedrana Sember ◽  
Sasa Djuric ◽  
Gregor Starc ◽  
...  
Keyword(s):  
Cardiorespiratory Fitness ◽  
Linear Models ◽  
Cross Sectional Study ◽  
Active Commuting ◽  
Sectional Study ◽  
Cross Sectional ◽  
Main Effect ◽  
Commuting Mode ◽  
Run Test ◽  
Shuttle Run

Abstract Background It is unclear whether active commuting has the potential to improve children’s health. This study examined the association of commuting mode and distance with children’s cardiorespiratory fitness (CRF). Methods We conducted a cross-sectional study, including 713 Slovenian schoolchildren aged 12 to 15 years. Commuting modes were self-reported, and four commuting groups were constructed, while CRF was determined with a 20-m shuttle run test. The distance from home to school was calculated using the Geographic Information System. Effects of commuting mode and distance, controlling for age, gender and amount of total physical activity, were evaluated using general two linear models (one for each direction of commuting to/from school). Results The main effect of commuting group on CRF and its interaction with distance were significant in the direction from school to home (P = 0.013 and P = 0.028, respectively), but not in the opposite direction. Predicted differences in CRF between commuting groups were moderate and generally higher in males than in females. When comparing commuting group median distance from home to school, males driven by car had around 4 ml/min/kg lower predicted CRF than those who walked (P = 0.01) or used wheels commuting (e.g., bicycle, skateboard). Conclusions The distance of commuting had a small effect on CRF, except in the Car group where children who live close to school had significantly lower CRF than those living further away. Children driven by car who live within wheels or walk distance from school should be targeted by interventions promoting active transport.

scholarly journals Association of Tobacco Smoking with Physical Fitness of Military Males in Taiwan: The CHIEF Study

2020 ◽  
Vol 2020 ◽  
pp. 1-6 ◽  
Author(s):  
Fang-Ying Su ◽  
Sheng-Huei Wang ◽  
Henry Horng-Shing Lu ◽  
Gen-Min Lin
Keyword(s):  
Physical Fitness ◽  
Cardiorespiratory Fitness ◽  
Tobacco Smoking ◽  
Smoking Status ◽  
Scoring Systems ◽  
Armed Forces ◽  
Cross Sectional Study ◽  
Effective Sample Size ◽  
Cross Sectional ◽  
Run Test

Tobacco smoking has been found associated with lower cardiorespiratory fitness in white and black males; however, few studies have not been conducted to clarify such relationship in Asian males. We performed a cross-sectional study to investigate the association between tobacco smoking status and physical fitness in 3,669 military males, averaged 29.4 years of age, from the cardiorespiratory fitness and hospitalization events in armed forces (CHIEF) study in Taiwan during 2014. There were 1,376 current smokers, and the others were noncurrent smokers. The effective sample size estimated was 1,230 participants, as the margin of error was ±3% at the 99% confidence level. Physical fitness was evaluated by time for a 3000-meter run test (aerobic fitness) and repetitive numbers of 2-minute sit-ups and 2-minute push-ups (anaerobic fitness) where all procedures were standardized by using computerized scoring systems. A multiple linear analysis adjusting for age, service specialty, body mass index, heart rate, alcohol intake, and training frequency was used to determine the relationship. As compared with noncurrent smoking, current smoking was inversely correlated with longer time for a 3000-meter run (β = 15.66 (95% confidence intervals (CI): 10.62, 20.70)) and fewer repetitive numbers of 2-minute sit-ups and 2-minute push-ups (β = −1.53 (95% CI: −2.08, −0.97) and −1.31 (95% CI: −2.12, −0.50), respectively). Our finding reconfirms the concept that tobacco smoking might reduce both aerobic and anaerobic fitness among young Asian males.

Developmental Coordination Disorder and Cardiorespiratory Fitness in Children

2007 ◽  
Vol 19 (1) ◽  
pp. 20-28 ◽  
Author(s):  
John Cairney ◽  
John A. Hay ◽  
Brent E. Faught ◽  
Andreas Flouris ◽  
Panagiota Klentrou
Keyword(s):  
Cardiorespiratory Fitness ◽  
Developmental Coordination Disorder ◽  
Short Form ◽  
High Risk Group ◽  
Cross Sectional ◽  
Percentile Rank ◽  
And Gender ◽  
Run Test ◽  
Coordination Disorder ◽  
Shuttle Run

It is not known whether children with Developmental Coordination Disorder (DCD) have lower cardiorespiratory fitness (CRF) than children without the disorder, or whether this relationship varies by age and gender. These issues are examined using a cross-sectional assessment of children 9-14 years of age (N = 549). Participants were screened for DCD using the short form Bruininks-Oseretsky Test of Motor Proficiency (BOTMP-SF). A BOTMP-SF age-adjusted standard score at or below the 10th percentile rank on the BOTMP-SF was required to classify a diagnosis for probable DCD. CRF was determined from each participant’s predicted peak-aerobic power using the Léger 20-m shuttle-run test. Children with DCD report lower CRF than children without the disorder and are more likely to be in a high-risk group (≤ 20th percentile in peak VO2). Moreover, 70% of boys with DCD scored at or below the 20th percentile in peak VO2. Further research in a laboratory setting should be conducted to confirm these findings.

scholarly journals Comparison between incremental shuttle run test and Harvard’s step test on peak exercise performance in healthy males: a cross-sectional study

2019 ◽  
Vol 7 (8) ◽  
pp. 3111
Author(s):  
Supriya Gondane ◽  
Seemi A. Retharekar ◽  
Swaroop V. Kudalkar
Keyword(s):  
Cross Sectional Study ◽  
Cardiovascular Fitness ◽  
Step Test ◽  
Peak Exercise ◽  
Sectional Study ◽  
Cross Sectional ◽  
Test Parameters ◽  
Post Test ◽  
Run Test ◽  
Shuttle Run

Background: Cardiovascular fitness is directly related to the physical health of the person. Aerobic capacity (VO2max) is one of the major criteria to decide the cardiovascular fitness of an individual. To help quantify the fitness level by calculating their VO2max, there are various indirect maximal tests available but out of these, which one would predict VO2max better, is a major concern. Hence the purpose of this study was to compare the effects of two indirect maximal tests i.e. Incremental Shuttle Run Test (ISRT) and Harvard’s Step Test (HST) on peak exercise performance in young healthy males.Methods: A cross-sectional study with purposive sampling was performed on healthy untrained 100 males of age group 18-25 years. Day 1 subjects performed ISRT on 20 m track and after a 48 hours rest period, on day 3 same subject performed Harvard’s step test. Pre and post-test parameters (Pulse rate, respiratory rate, systolic and diastolic blood pressure and RPE) were measured and predicted VO2max was calculated.Results: Post-test parameters i.e. PR, RR, SBP significantly increased (p=0.00*) by Harvard’s step test. The diastolic blood pressure did not change significantly (p=0.3) for both the tests. Rating of perceived exertion by both the test was of the range 17-19 (very hard to maximal). Calculated predicted VO2max was significantly more by ISRT than HST in males (p=0.00*).Conclusions: Incremental shuttle run test is more efficient in predicting VO2max than Harvard’s step test in healthy adult’s males.

Associations Between Self-Rated Health With Cardiorespiratory Fitness and Obesity Status Among Adolescent Girls

2012 ◽  
Vol 9 (3) ◽  
pp. 378-381 ◽  
Author(s):  
Jorge Mota ◽  
Rute M. Santos ◽  
Pedro Silva ◽  
Luisa Aires ◽  
Clarice Martins ◽  
...  
Keyword(s):  
Cardiorespiratory Fitness ◽  
Adolescent Girls ◽  
Weight Status ◽  
Task Force ◽  
Cross Sectional Study ◽  
Normal Weight ◽  
Cross Sectional ◽  
Self Rated Health ◽  
Obesity Status ◽  
Run Test

Background:The main goal of this study was to analyze the associations between cardiorespiratory fitness (CRF) and body mass index (BMI) with self-rated health (SRH) of adolescent girls.Methods:This was a cross-sectional study of 533 adolescents girls, aged from 10 to 18 years old. CRF was predicted by maximal multistage 20-m shuttle-run test according to procedures described from FITNESSGRAM. Girls’ obesity status was classified according to International Obesity Task Force and Self-rated health (SRH) was assessed by questionnaire.Results:The findings showed that among adolescent girls 23.2% had negative SRH. Girls who were classified as unfit were more likely to report negative SRH in both univariate logistic (OR: 3.05; CI: 1.91−4.87; P < .05) and multivariate (OR: 2.93; CI: 1.82−4.72; P < .05) regression analyses compared with their fit peers. Obese girls were more likely to report negative SRH (OR: 2.30; CI: 1.14−4.62; P < .05) compared with their normal-weight counterparts. However such association was lost in multivariate analyses suggesting an effect of CRF.Conclusions:Negative perception of health was associated with lower CRF and weight status although such association it is mediated by CRF condition.

scholarly journals Association between Creativity and Memory with Cardiorespiratory Fitness and Lifestyle among Chilean Schoolchildren

Nutrients ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1799
Author(s):  
Felipe Caamaño-Navarrete ◽  
Pedro Á. Latorre-Román ◽  
Juan A. Párraga-Montilla ◽  
Cristian Álvarez ◽  
Pedro Delgado-Floody
Keyword(s):  
Sleep Duration ◽  
Cardiorespiratory Fitness ◽  
Food Habits ◽  
Positive Association ◽  
Cross Sectional Study ◽  
Long Term Memory ◽  
Anthropometric Measures ◽  
Cross Sectional ◽  
Adherence Score ◽  
Run Test

The objective was to investigate the association between creativity and memory with cardiorespiratory fitness (CRF; i.e., CFR classification and O2max); lifestyle parameters (i.e., physical activity (PA), sleep duration, screen time (ST), and food habits); and anthropometric measures (i.e., body mass index (BMI), waist circumference (WC)) among Chilean schoolchildren. A total of 248 schoolchildren (137 boys, 111 girls, 11.80 ± 1.17 and 11.58 ± 1.09 years, respectively) participated in the cross-sectional study. Creativity, memory, concentration, and selective attention and lifestyle (PA, ST, sleep duration, and Mediterranean diet (MD) adherence) were measured using a standard questionnaire. CRF (measured by the 20 m shuttle run test and expressed as maximum oxygen consumption O2max) and anthropometric measures (BMI and WC) were also included. Creativity showed a positive association with O2max (ml/kg/min) (β; 0.209, 95% CI; 0.02–0.40, p = p < 0.05) and MD Adherence (score) (β; 0.206, 95% CI; 0.01; 0.74, p = p < 0.05). Long-term memory reported a positive association with CRF (β; 1.076, 95% CI; 0.02–2.13, p = p < 0.05). An increase in CRF levels, together with healthy food habits and normal nutritional status, should be a target for community- and school-based interventions to promote cognitive development in creativity and memory among schoolchildren.

scholarly journals Cardiorespiratory Fitness, Blood Pressure and Ethnicity Are Related to Salivary Cortisol Responses after an Exercise Test in Children: The ExAMIN Youth SA Study

2021 ◽  
Vol 18 (15) ◽  
pp. 7898
Author(s):  
Sabrina Köchli ◽  
Shani Botha-Le Roux ◽  
Aletta Sophia Uys ◽  
Ruan Kruger
Keyword(s):  
Blood Pressure ◽  
Cardiorespiratory Fitness ◽  
Exercise Test ◽  
Salivary Cortisol ◽  
Cross Sectional Study ◽  
Analysis Of Covariance ◽  
Cross Sectional ◽  
Cortisol Reactivity ◽  
Cardiometabolic Disorders ◽  
Shuttle Run

Background: Childhood elevated circulatory stress mediators such as cortisol seem to play an important role in the development of hypertension and metabolic disorders later in life. Little is known about the association of body composition, cardiorespiratory fitness (CRF), blood pressure (BP) and ethnicity with cortisol reactivity in young children. Methods: In this cross-sectional study, 324 black and 227 white school children (aged 7.4 ± 1.0 years) were screened for salivary cortisol reactivity, body mass index, BP and CRF (shuttle run) by standardised assessments for children. Results: Children in the lower cortisol reactivity percentile (<25th) had a higher heart rate (87.0 ± 12.9 bpm) and a lower CRF (3.1 ± 1.3 stages) compared to children in the upper (>25th) percentile (86.2 ± 11.5 bpm and 3.5 ± 1.7 stages, respectively). At baseline, children of black ethnicity had a higher cortisol level (p < 0.001). Immediately before the exercise test, no associations of obesity, BP, CRF and ethnicity with cortisol levels were found. In analysis of covariance (ANCOVA) we found that low CRF, high BP and black ethnicity were independently associated with lower cortisol reactivity by performing the shuttle run test (p < 0.01). Conclusion: Low CRF and high BP were associated with lower cortisol reactivity after a cardiorespiratory exercise test. Black children showed a lower cortisol reactivity which may contribute to the earlier onset of hypertension reported in black compared to white populations. Primary prevention programs need to focus on improving physical fitness to reduce the growing prevalence of cardiometabolic disorders during childhood.

scholarly journals Functional endurance capacity is associated with multiple other physical fitness components in 7–14-year-olds: a cross-sectional study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mario Kasović ◽  
Lovro Štefan ◽  
Vilko Petrić ◽  
Vesna Štemberger ◽  
Iva Blažević
Keyword(s):  
Body Mass Index ◽  
Physical Fitness ◽  
Body Mass ◽  
Cross Sectional Study ◽  
Endurance Capacity ◽  
Fitness Components ◽  
Cross Sectional ◽  
Test Measure ◽  
Run Test ◽  
Shuttle Run

Abstract Background Although evidence suggests that functional endurance capacity is the most important component associated with future health, little is known of how it is associated with multiple other physical fitness components. Since various physical fitness aspects do not change the same as functional endurance capacity during childhood, it is necessary to establish possible associations between functional endurance capacity and other physical fitness components in children. Therefore, the main purpose of the study was to test the associations between functional endurance capacity with other physical fitness components in 7–14-year-old children, stratified by gender. Methods In this cross-sectional study, we recruited 1612 children [mean age ± standard deviation (SD) = 9.72 ± 2.37 years; 52.5% girls). Health-related physical fitness components included: 1) body-mass index (kg/m2) calculated from height and weight (measure of body size), 2) sit-and-reach test (measure of flexibility), 3) standing broad jump (measure of explosive strength of lower extremities), 4) sit-ups in 30 s (measure of repetitive strength of the trunk), 5) 10 × 5 shuttle run test (measure of agility) and 6) 20-m shuttle run test (measure of functional endurance capacity). The associations were performed using generalized estimating equations with beta (β) coefficients. Results After adjusting for age, functional endurance capacity was associated with sit-and-reach test (β = 0.13, p < 0.001), standing broad jump (β = 0.59, p < 0.001), sit-ups in 30 s (β = 0.53, p < 0.001) and 10 × 5 shuttle run test (β = − 0.56, p < 0.001) in boys. In girls, functional endurance capacity was associated with body-mass index (β = − 0.12, p < 0.001), sit-and-reach test (β = 0.21, p < 0.001), standing broad jump (β = 0.25, p < 0.001), sit-ups in 30 s (β = 0.36, p < 0.001) and 10 × 5 shuttle run test (β = − 0.40, p < 0.001). No significant associations between functional endurance capacity and body-mass index in boys were observed. Conclusions Although significant, functional endurance capacity is weakly to moderately associated with other physical fitness components, pointing out that such measure should be tested separately from other aspects of physical fitness in school-aged children.

scholarly journals Heart rate agreement between the 20-meter shuttle run test and virtual system in healthy children: a cross-sectional study

2019 ◽  
Author(s):  
cristiane moran ◽  
SIMONE DAL CORSO ◽  
MARIA TERESA BOMBIG ◽  
ANDREY JORGE SERRA ◽  
SILVANA ALVES PEREIRA ◽  
...  
Keyword(s):  
Heart Rate ◽  
Perceived Exertion ◽  
Cross Sectional Study ◽  
Healthy Children ◽  
Sectional Study ◽  
Borg Scale ◽  
Cross Sectional ◽  
Virtual System ◽  
Run Test ◽  
Shuttle Run

Abstract Background: Earlier studies evaluated the physiological responses to video games in children with different clinical conditions; however, no study has compared active video games with an incremental field test in healthy children. The purpose of this study was to verify the agreement between the 20-meter shuttle run test (20m-SRT) and virtual system (VS). Methods: This is a cross-sectional study of 235 children (9.0 ± 0.8 years, 109 boys). The two tests were performed one week apart and the children were instructed not to engage in any physical exercise or sports in the 24 hours preceding each test. Their resting heart rate was monitored for one minute and then throughout the tests. To evaluate the influence of motivation on the 20 m SRT and (VS), at the end of the tests the children were asked to rate their motivation on a scale of zero to 10, zero being “not cool” and 10 “awesome”. Perceived exertion at the end of the tests was assessed using the modified Borg scale. Results: Maximum heart rate (HRmax) did not differ between the 20m-SRT and VS (194.4 ± 10.2 bpm vs. 193.2 ± 13.8 bpm, respectively). Both tests were similar for intensity > and < 96% HRmax. The children showed greater exertion on the Borg scale and motivation during the VS. The multiple logistic regression model showed that motivation (p=0.98), sex (p=0.53), age (p=0.61), nutritional status (p=0.65), and speed (p=0.18) were not predictive factors of the child’s reaching HRmax. Conclusion: VS can be used as a tool to evaluate the intensity of maximal exercise tests, given that the percentage of children who achieved HRmax did not differ between the VS and 20m SRT. The perceived exertion scales were correlated, but only the modified Borg scale correlated with HRmax in the 20m SRT. The tests are motivational, and most children obtained the maximum VS score. Keywords: cardiology; child; exercise; physical fitness; virtual reality; Incremental stress test

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