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Anthropometric and cardio-respiratory indices and aerobic capacity of male and female students

100%

Czajkowska A., Mazurek K., Lutosławska G., Żmijewski P.

Biomedical Human Kinetics

2009

vol. 1

47-51

Study aim: To assess the relations between anthropometric and cardio-respiratory indices, and aerobic capacity of students, differing in the level of physical activity, under resting and exercise conditions.Material and methods: A group of 87 male and 75 female students volunteered to participate in the study. Their physical activity was evaluated by Seven-Day Physical Activity Recall questionnaire. Anthropometric (body height and mass, body fat content, BMI and WHR) and physiological indices (heart rate, blood pressure, O2max, CO2 and minute ventilation) were recorded. Body fat content was determined using a BIA device; respiratory data were recorded in a cycle ergometer test. The subjects were classified by their O2max values into ‘high’ or ‘low’ categories, the cut-off values of lower and upper quartiles serving as criteria.Results: Male and female students expended 10.2 ± 4.6 and 8.4 ± 5.3 kcal/kg/day, respectively, the O2max amounting to 48.4 ± 6.4 and 41.1 ± 4.7 ml/kg/min, respectively. Subjects having high O2max had significantly higher energy expenditure on physical activities, fat-free mass, body water content and maximal ventilation, and lower body mass, BMI, body fat content, resting heart rate and diastolic pressure.Conclusions: When investigating into the relationships between physical activity and physiological features, the latter ought to be related to O2max rather than to energy expenditure which may depend on other than physiological variables.

Estimation of aerobic fitness among young men without exercise test

88%

Tanskanen M. M., Kyröläinen H., Santtila M., Tammelin T.

Biomedical Human Kinetics

2015

vol. 7

issue 1

Study aim: to develop and estimate the validity of non-exercise methods to predict VO2max among young male conscripts entering military service in order to divide them into the different physical training groups. Material and methods: fifty males (age 19.7 ± 0.3 years) reported their physical activity before military service by IPAQ and SIVAQ questionnaires. Furthermore, Jackson’s non-exercise method was used to estimate VO2max. Body mass and height were measured, body mass index calculated and VO2max measured directly in a maximal treadmill test. Subjects were randomly divided into two groups. The results of the Group 1 (N = 25) were used to develop a regression equation to estimate VO2max. The results of the Group 2 (N = 25) were used to evaluate the validity of the developed non-exercise methods and Jackson’s non-exercise methods to estimate VO2max by Bland and Altman plot. The validity was further evaluated by comparing the results to 12-minute running test performed by 877 male conscripts (age 19.6 ± 0.2 years). Results: the developed models explained 68–74% of the variation in VO2max. Mean difference between directly measured and estimated VO2max was not significant, while Jackson’s method overestimated VO2max (p < 0.001). Both developed models were equally valid to divide conscripts into tertile group of fitness. However, 5% of the conscripts were classified into the highest fitness group based on both methods, but they were actually in the lowest fitness group based on a running test. Conclusion: in practice, these findings suggest that developed methods can be used as a tool to divide conscripts into different fitness groups in the very beginning of their military service.

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2 Biomedical Human Kinetics

1 2015

1 2009

1 Czajkowska A.

1 Kyröläinen H.

1 Lutosławska G.

1 Mazurek K.

1 Santtila M.

1 Tammelin T.

1 Tanskanen M. M.

1 Żmijewski P.

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Anthropometric and cardio-respiratory indices and aerobic capacity of male and female students

Estimation of aerobic fitness among young men without exercise test