![]() Sui X, LaMonte MJ, Laditka JN, Hardin JW, Chase N, Hooker SP, et al. The Official Journal of the Korean Academy of Kinesiology. Predictions Developments of V˙ O 2 max by submaximal metabolical responses, physical variables and hr responses for adult women. Im J-H, Jeon Y-J, Chang H-K, Kim H-J, Lee B-K. Off J Korean Acad Kinesiol 2012 14: 33–46. Predictions of V˙ O 2 max using metabolical responses in submaximal exercise and distance running for male, and comparison the validity of these prediction models. Im J-H, Jeon Y-J, Chang H-K, Kim H-J, Kim K-H, Lee B-K. Therefore, the 10-m MST developed by us can be used when the existing 20-m MST cannot be used due to spatial limitations and can be applied to both men and women in their 20s and 50s. In the cross-validation test for the developed regression models, the male's SEE was 4.38 mL/kg/min, and the female's SEE was 4.56 mL/kg/min.Ĭonclusion: Thus, the 10-m MST is an accurate and valid method for estimating the VO2max. The 10-m MST showed a high correlation with GXT on the VO2max (males: 0.816 females: 0.821). The female regression model's R2 was 69.2%, and the SEE was 3.39 mL/kg/min. Results: The male regression model's coefficient of determination (R2) was 58.8%, and the standard error of estimation (SEE) was 4.17 mL/kg/min. We developed a regression model using 70% of the subject's data and performed a cross-validation test using 30% of the data. All subjects performed a graded maximal exercise test (GXT) and a 10-m MST at five-day intervals. Material and methods: Study subjects included 120 healthy adults (60 males and 60 females) aged 20 to 50 years. Therefore, we developed a new MST to improve the spatial limitation by reducing the measurement to a 10-m distance and to resolve the bias via uniform distributions of gender and age. ![]() Test-retest reliability coefficients were 0.89 for children (139 boys and girls 6-16 years old) and 0.95 for adults (81 men and women, 20-45 years old).Background and objective: The disadvantage of the traditional 20-m multistage shuttle run test (MST) is that it requires a long space for measurements and does not include various age groups to develop the test. For adults, similar measurements indicated that the same equation could be used keeping age constant at 18 (r = 0.90, n = 77 men and women 18-50 years old). Right upon termination VO2 was measured with four 20 s samples and VO2max was estimated by retroextrapolating the O2 recovery curve at time zero of recovery. To obtain this regression, the test was performed individually. When the subject can no longer follow the pace, the last stage number announced is used to predict maximal oxygen uptake (VO2max) (Y, ml kg-1 min-1) from the speed (X, km h-1) corresponding to that stage (speed = 8 + 0.5 stage no.) and age (A, year): Y = 31.025 + 3.238 X - 3.248A + 0.1536AX, r = 0.71 with 188 boys and girls aged 8-19 years. Frequency of the sound signals is increased 0.5 km h-1 each minute from a starting speed of 8.5 km h-1. Subjects run back and forth on a 20 m course and must touch the 20 m line at the same time a sound signal is emitted from a prerecorded tape. A maximal multistage 20 m shuttle run test was designed to determine the maximal aerobic power of schoolchildren, healthy adults attending fitness class and athletes performing in sports with frequent stops and starts (e.g.
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