Effects of body fat percentage on intensity parameters during a running based incremental test
Abstract
The aim of this study was to evaluate the influence of body fat percentage (BF%) on intensity parameters during a running based exercise. Fourteen male subjects (20.5 ± 1.6 years; 74.7 ± 13.3 kg; 172.1 ± 6.4 cm) were divided in two groups: Group 1(BF% < 12%; n = 7; 7.3 ± 4.0 BF%) and Group 2 (BF% > 12%; n = 7; 25.6 ± 6.7 BF%). A progressive treadmill test was performed to determine: Maximal Oxygen Uptake (VO2 max); Maximal Velocity (Vmax); Maximal Heart Rate (HRmax); Anaerobic Threshold (AnT) and the velocity intensity parameters at ∆25 (v∆25), ∆50 (v∆50) and ∆75 (v∆75). The BF% was higher in Group 2 (p<0.001). Group 1 presented higher values for all velocity parameters [vVO2 max (p=0.002); v∆25 (p=0.016); v∆50 (p=0.004); v∆75 (p=0.002); Vmáx (p=0.002) and for VO2 max (p=0.045) when compared to group 2. Higher values of BF% seem to impair intensity parameters of velocity to exercise prescription in young adults.
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