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- W2080498295 abstract "PURPOSE: Evidence for the presence of bilateral deficits during assessments of maximal power (Pmax) and maximal aerobic capacity (VO2peak) during cycling has been previously reported. To our knowledge bilateral deficits in Pmax and VO2peak have not been assessed in the same individual. The purposes of this study were to 1) compare the summed (right + left leg) unilateral Pmax with bilateral Pmax and summed unilateral VO2peak with bilateral VO2peak and 2) identify the potential difference in unilateral asymmetry when measuring Pmax and VO2peak. METHODS: Seven trained participants (VO2peak = 54±11 ml·kg-1·m-1), 6 males and 1 female (27±2 yrs, 176±7 cm, 82±21 kg) volunteered for this investigation. VO2peak was assessed during a ramped cycling protocol and Pmax assessed using inertial-load cycling. For Pmax and VO2peak trials a 9.9 kg counter weight was attached to the ergometer to facilitate smooth single-leg cycling. Paired t-tests were used to identify unilateral asymmetry and bilateral deficit for Pmax and VO2peak. The unilateral analysis compared the most powerful, most aerobic leg against the least powerful, least aerobic leg for each participant. RESULTS: Bilateral Pmax and summed unilateral Pmax were not different (1139±288 vs. 1137±314 W, p=.94). Unilateral Pmax (strongest vs. weakest) (581±161 vs. 555±154 W, p<.05) as well as unilateral VO2peak (more aerobic vs. least aerobic) (45±9 vs. 41±9 ml·kg-1·m-1, p<.01) differed significantly. Summed unilateral VO2peak was significantly greater than bilateral VO2peak (86±18 vs. 54±11 ml·kg-1·m-1, p<.01). CONCLUSIONS: These trained individuals did not exhibit a bilateral deficit in maximum power which supports and extends previous work measuring bilateral deficit in strength training. However, the observed unilateral differences (both Pmax and VO2peak) imply that trained individuals may preferentially rely on one leg during cycling and raises the question of asymmetry during bilateral cycling. The difference in unilateral vs. bilateral VO2peak values suggest bilateral aerobic cycling is likely limited by central factors while unilateral lower body cycling may be limited by local muscle factors." @default.
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- W2080498295 date "2009-05-01" @default.
- W2080498295 modified "2023-09-26" @default.
- W2080498295 title "Bilateral Deficit In Peak Cycling O2 Consumption But Not Maximum Cycling Power" @default.
- W2080498295 doi "https://doi.org/10.1249/01.mss.0000354831.74129.8d" @default.
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