Predicted Equation for VO2 Based on a 20-Meter Multistage Shuttle Run Test for Children

2018 ◽  
Vol 39 (14) ◽  
pp. 1049-1054 ◽  
Author(s):  
Gisela Arsa ◽  
Fernanda Lanza ◽  
Lucieli Cambri ◽  
Ednei Antonio ◽  
Neif Murad ◽  
...  
Keyword(s):  
Intraclass Correlation ◽  
Prediction Equation ◽  
Cardiopulmonary Exercise Test ◽  
Fat Free Mass ◽  
Maximum Speed ◽  
Healthy Children ◽  
Predictive Equation ◽  
Maximum Oxygen Consumption ◽  
Run Test ◽  
Shuttle Run

AbstractThis study compared maximum oxygen consumption (VO2max) on a 20-meter multistage shuttle run test (20-Srt) with a cardiopulmonary exercise test (CPET) to determine a VO2max prediction equation for a 20-Srt in children aged 6–10 years. Eighty healthy children performed the CPET on a treadmill, while the 20-Srt took place on a sports court. Heart rate (HR) was measured and the expired gases were continuously measured breath-by-breath using a portable gas analyzer. The VO2max was lower (p<0.05) in CPET than 20-Srt for all, female, and male participants, respectively (46.3±7.9 vs. 48.7±4.6; 42.7±7.8 vs. 46.7±4.8; 49.3±6.8 vs. 50.4±3.9, mL·kg-1·min-1). The standard error estimates were between 3.0 and 3.6 and considered as not clinically relevant if less than 5 mL·kg-1·min-1. The intraclass correlation coefficient between the VO2 in CPET and in 20-Srt was 0.74 (CI95% 0.55–0.84) and considered moderately reliable. The linear multiple regression excluded sex, body mass index and fat-free mass and retained the maximum speed and age in the predictive equation. The 20-Srt estimates the VO2max with moderate reliability and the predictive equation was VO2maxpred=4.302+(maximum speed*5.613)–(age*1.523) for children aged 6–10 years.

Physical Activity, Motor Ability, and School Readiness of 6-Yr.-Old Children

2002 ◽  
Vol 95 (2) ◽  
pp. 407-415 ◽  
Author(s):  
Leila Oja ◽  
Toivo Jürimäe
Keyword(s):  
Physical Activity ◽  
Preschool Children ◽  
School Readiness ◽  
Physical Activities ◽  
Healthy Children ◽  
Motor Ability ◽  
Ability Tests ◽  
Mental Abilities ◽  
Run Test ◽  
Shuttle Run

The aim of this investigation was to study the relationships between physical activity, motor ability, and school readiness in 6-yr.-old children. In total, 294 healthy children from Tartu were studied (161 boys and 133 girls). The physical activity of children was reported by parents and teachers using the questionnaire of Harro. The motor ability of children was evaluated using various tests from the Eurofit test battery as well as the 3-min. endurance shuttle run test. The Controlled Drawing Observation test was used as a predictor of school readiness and development of mental abilities. Indoor physical activities predicted 19–25% of total variance in motor scores for these preschool children. Motor ability tests, which demand children's total attention and concentration, appear related to the chosen measures of school readiness.

Prediction of VO2peak from the 20-m Shuttle-Run Test in Youth With Down Syndrome

2011 ◽  
Vol 28 (2) ◽  
pp. 146-156 ◽  
Author(s):  
Stamatis Agiovlasitis ◽  
Kenneth H. Pitetti ◽  
Myriam Guerra ◽  
Bo Fernhall
Keyword(s):  
Body Mass Index ◽  
Down Syndrome ◽  
Oxygen Uptake ◽  
Regression Model ◽  
Body Mass ◽  
Prediction Equation ◽  
Peak Oxygen Uptake ◽  
Run Test ◽  
Shuttle Run

This study examined whether 20-m shuttle-run performance, sex, body mass index (BMI), age, height, and weight are associated with peak oxygen uptake (VO2peak) in youth with Down syndrome (DS; n = 53; 25 women, age 8–20 years) and whether these variables can be used to develop an equation to predict VO2peak. BMI, 20-m shuttle-run performance, and sex were significantly associated with VO2peak in youth with DS, whereas age, height, and weight were not. A regression model included only shuttle-run performance as a significant predictor of VO2peak; however, the developed prediction equation had low individual predictability. Therefore, 20-m shuttle-run performance alone does not provide valid prediction of VO2peak in youth with DS. Sex, BMI, age, height, and weight do not improve the prediction of VO2peak.

scholarly journals PREDICTION EQUATION FOR SHUTTLE RUN DISTANCE USING 20 METRE SHUTTLE RUN TEST IN HEALTHY, INDIAN CHILDREN AGED 7 TO 19 YEARS.

2019 ◽  
pp. 1-3
Author(s):  
Ashwini Dangi
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Prediction Equation ◽  
Specific Reference ◽  
Indian Children ◽  
Reference Equation ◽  
Specific Prediction ◽  
Run Test ◽  
Gender Specific ◽  
Shuttle Run

Objectives:To frame individualized gender – specific prediction equations for shuttle run distance using 20 metre shuttle run test in healthy, Indian children aged between 7 to 19 years and to correlate shuttle run distance with age, height, weight & body mass index. Methods: 494 subjects between the age group of 7 to 19 years were recruited in this study. Demographic details like age, gender, height, weight and body mass index were noted. 20 metre shuttle run test was performed and shuttle run distance was calculated for all participants. Results: Shuttle run distance significantly correlated with age (r =0.303), height (r =0.357), weight (r =0.294), and body mass index (r =0.126). The gender specific reference equation generated forboys is -367.724 + (27.225 x Age) + (487.457 x Height) – (3.213 x Weight) and for girls is 153.689 +(10.306 x Age) +(118.113 x Height) – (1.421 x Weight). Conclusion: The established prediction equation can be used as a reference to evaluate exercise capacity for children and adolescents and to improve the applicability of the 20 metre shuttle run test in clinical practice

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

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

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Cristiane A. 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-m shuttle run test (20 m-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 h 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 20 m-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 20 m SRT. The perceived exertion scales were correlated, but only the modified Borg scale correlated with HRmax in the 20 m SRT. The tests are motivational, and most children obtained the maximum VS score.

Second Ventilatory Threshold Assessed by Heart Rate Variability in a Multiple Shuttle Run Test

2020 ◽  
Vol 42 (01) ◽  
pp. 48-55
Author(s):  
Dimitrios C. Stergiopoulos ◽  
Stylianos N. Kounalakis ◽  
Panagiotis G. Miliotis ◽  
Nikolaos D Geladas
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
High Frequency ◽  
Ventilatory Threshold ◽  
Intraclass Correlation ◽  
Mean Difference ◽  
Respiratory Gases ◽  
Run Test ◽  
Shuttle Run ◽  
Ecg Derived Respiration

AbstractMany studies have focused on heart rate variability in association with ventilatory thresholds. The purpose of the current study was to consider the ECG-derived respiration and the high frequency product of heart rate variability as applicable methods to assess the second ventilatory threshold (VT2). Fifteen healthy young soccer players participated in the study. Respiratory gases and ECGs were collected during an incremental laboratory test and in a multistage shuttle run test until exhaustion. VΤ2 was individually calculated using the deflection point of ventilatory equivalents. In addition, VT2 was assessed both by the deflection point of ECG-derived respiration and high frequency product. Results showed no statistically significant differences between VT2, and the threshold as determined with high frequency product and ECG-derived respiration (F(2,28)=0.83, p=0.45, η2=0.05). A significant intraclass correlation was observed for ECG-derived respiration (r=0.94) and high frequency product (r=0.95) with VT2. Similarly, Bland Altman analysis showed a considerable agreement between VT2 vs. ECG-derived respiration (mean difference of −0.06 km·h−1, 95% CL: ±0.40) and VT2 vs. high frequency product (mean difference of 0.02 km·h−1, 95% CL: ±0.38). This study suggests that, high frequency product and ECG-derived respiration are indeed reliable heart rate variability indices determining VT2 in a field shuttle run test

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

Prediction of Peak Oxygen Uptake From a Maximal Treadmill Test in 12- to 18-Year-Old Active Male Adolescents

2010 ◽  
Vol 22 (4) ◽  
pp. 624-637 ◽  
Author(s):  
Vassilis Tsiaras ◽  
Andreas Zafeiridis ◽  
Konstantina Dipla ◽  
Kostas Patras ◽  
Anastasios Georgoulis ◽  
...  
Keyword(s):  
Cross Validation ◽  
Linear Regression Analysis ◽  
Prediction Equation ◽  
Peak Oxygen Uptake ◽  
Treadmill Running ◽  
Maximal Exercise Test ◽  
Male Adolescents ◽  
The Cross ◽  
Run Test ◽  
Shuttle Run

The aims were to develop and validate a VO2peak prediction equation from a treadmill running test in active male adolescents. Eighty-eight athletes (12–18 yrs.) performed a maximal exercise test on a treadmill to assess the actual VO2peak and a 20m Shuttle-Run-Test (20mST). A step-wise linear regression analysis was used and the following equation for estimation of VO2peak (mL·kg−1·min−1) = 35.477 + 1.832 × duration in min - 0.010 × duration × body mass in kg was developed. The cross-validation statistics were: R = .54, CE = 0.1 mL·kg−1·min−1, SEE = 2.5 mL·kg−1·min−1 (4.6%), and TE = 2.6 mL·kg−1·min−1 (4.9%). The cross-validation values (CE, SEE, and TE) were lower compared with those of previously published equations in adolescents that estimated VO2peak using anthropometric data, performance in 20mST, and energy cost at submaximal speeds.

Liver Elastography in Healthy Children Using Three Different Systems – How Many Measurements Are Necessary?

2020 ◽  
Author(s):  
Anders Batman Mjelle ◽  
Anesa Mulabecirovic ◽  
Roald Flesland Havre ◽  
Edda Jonina Olafsdottir ◽  
Odd Helge Gilja ◽  
...  
Keyword(s):  
Shear Wave ◽  
Transient Elastography ◽  
Intraclass Correlation ◽  
Age Groups ◽  
Liver Stiffness ◽  
Shear Wave Elastography ◽  
Healthy Children ◽  
Significant Difference ◽  
Pediatric Liver Disease ◽  
Liver Elastography

Abstract Purpose Liver elastography is increasingly being applied in screening for and follow-up of pediatric liver disease, and has been shown to correlate well with fibrosis staging through liver biopsy. Because time is of the essence when examining children, we wanted to evaluate if a reliable result can be achieved with fewer acquisitions. Materials and Methods 243 healthy children aged 4–17 years were examined after three hours of fasting. Participants were divided into four age groups: 4–7 years; 8–11 years; 12–14 years and 15–17 years. Both two-dimensional shear wave elastography (2D-SWE; GE Logiq E9) and point shear wave elastography (pSWE; Samsung RS80A with Prestige) were performed in all participants, while transient elastography (TE, Fibroscan) was performed in a subset of 87 children aged 8–17 years. Median liver stiffness measurement (LSM) values of 3, 4, 5, 6, 7, and 8 acquisitions were compared with the median value of 10 acquisitions (reference standard). Comparison was performed for all participants together as well as within every specific age group. We investigated both the intraclass correlation coefficient (ICC) with absolute agreement and all outliers more than 10 %, 20 % or ≥ 0.5 or 1.0 kPa from the median of 10 acquisitions. Results For all three systems there was no significant difference between three and ten acquisitions, with ICCs ≥ 0.97. All systems needed 4 acquisitions to achieve no LSM deviating ≥ 1.0 kPa of a median of ten. To achieve no LSM deviating ≥ 20 % of a median of ten acquisitions, pSWE and TE needed 4 acquisitions, while 2D-SWE required 6 acquisitions. Conclusion Our results contradict recommendations of 10 acquisitions for pSWE and TE and only 3 for 2D-SWE.

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