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Estimation of aerobic fitness among young men without exercise test

100%

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.

Comparing the physical activity patterns of 3-year-old Finnish and Australian children during childcare and homecare days

76%

Soini A., Watt A., Tammelin T., Soini M., Sääkslahti A., Poskiparta M.

Baltic Journal of Health and Physical Activity

2014

vol. 6

issue 3

171-182

Background: Limited previous research has contrasted physical activity (PA) patterns in preschool children across different hourly patterns or segments of day, or adopted similar methodologies to compare the PA behaviors of children from different countries. The purpose of this study was to examine how the PA levels and patterns differed between 3- year-olds within and between childcare and homecare days in Finland and Australia. Material/Methods: ActiGraph GT3X accelerometers were used to monitor 121 (80 Finnish, 41 Australian) children’s PA for five consecutive days. Results: No significant country differences were observed in children’s daily total PA (light-tovigorous PA [LMVPA]), except that during childcare days Finnish children spent more time in light PA compared to Australian children. During childcare attendance hours children engaged in moderate-to-vigorous PA (MVPA) for an average of 48 minutes (SD = 24) covering 54% of their daily MVPA in Finland, and for 53 minutes (SD = 34) covering 64% of their daily MVPA in Australia. Variation in children’s hour-by-hour PA was more pronounced during childcare days than homecare days. Conclusions: Despite the variations based on cultural practices, no major differences were observed in children’s daily total PA between the countries. However, these findings provide a better understanding of 3-year-olds’ PA behavior patterns and will serve as valuable evidence for the development of PA promotion in preschool children in both Finland and in Australia.

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1 Baltic Journal of Health and Physical Activity

1 Biomedical Human Kinetics

1 2015

1 2014

2 Tammelin T.

1 Kyröläinen H.

1 Poskiparta M.

1 Santtila M.

1 Soini A.

1 Soini M.

1 Sääkslahti A.

1 Tanskanen M. M.

1 Watt A.

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Estimation of aerobic fitness among young men without exercise test

Comparing the physical activity patterns of 3-year-old Finnish and Australian children during childcare and homecare days