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Advisor(s)
Abstract(s)
Cardiovascular capacity, expressed as maximal oxygen uptake (VO2max), is a strong predictor
of health and fitness and is considered a key measure of physiological function in the healthy adult
population. The aim of this study was to investigate the influence of the physical activity levels (PAlevel)
of participants in the StepTest4all (validated protocol for the estimation of VO2max in adults). The sample
consisted of 69 participants, including 27 women (age 21.7 ± 3.6 years; body mass = 63.5 ± 14.8 kg;
height = 1.64 ± 0.06 m; body mass index = 23.7 ± 5.3 kg/m2) and 42 men (aged 21.7 ± 3.4 years; body
mass = 72.0 ± 7.3 kg; height = 1.77 ± 0.07 m; body mass index = 23.1 ± 2.1 kg/m2). The participants
were assigned to one of the two groups: (i) the VO2max prediction group and (ii) the prediction model
validation group. In the multiple linear regression, the following predictors of VO2max remained
significant: sex (p < 0.001), physical activity level (p = 0.014), and HRR60 (p = 0.020). The prediction
equation (R2 = 74.0%, SEE = 4.78) showed a close and strong relationship between the measurements
and can be expressed as follows: VO2max = 17.105 + 0.260·(HRR60) + 8.563·(sex) + 4.097·(PAlevel), in
which HRR60 is the magnitude of the HR decrease (bpm) in one minute immediately after stopping the
step, and sex: men = 1, women = 0, and PAlevel is level 1 (low), level 2 (moderate), and level 3 (high).
The StepTest4all was shown to be a suitable method for estimating cardiovascular capacity, expressed as
VO2max, in young adults. Retaining PAlevel as a significant predictor allows us to better individualize
the participants’ VO2max.
Description
Keywords
StepTest4all Cardiovascular capacity Validation Cardiovascular classification Health
Citation
Sampaio, Tatiana; Morais, J.E.; Bragada, José A. (2024). StepTest4all: improving the prediction of cardiovascular capacity assessment in young adults. Journal of Functional Morphology and Kinesiology. eISSN 2411-5142. 9:1, p. 1-12
Publisher
MDPI