Acute Response of High-Intensity and Traditional Resistance Exercise on Anaerobic Power.

Filed under: Rehab Centers

J Strength Cond Res. 2012 Dec 12;
Austad MA, Gay CR, Murray SR, Pettitt RW

ABSTRACT: Quantifying the maximal work capacity (W’) above the aerobic critical power (CP) has emerged as a method for estimating anaerobic work capacity. Slower cadence, lower-load resistance training (RT), colloquially referred to as High-intensity training (HIT), made up of slower cadence, lower-load resistance, is purported to be a better metabolic stressor than faster cadence, higher-load TR, but to date this belief has not been supported by research. We compared the acute effects of HIT and traditional RT bouts on average power within a 150-second time period (P150 s), CP and W’, as measured from a 3-minute all-out exercise test using cycling ergometry (3 MT). Eight recreationally active male subjects (mean ± SD: age 22 ± 2 years, body mass 85 kg ± 14 kg, and height 183 cm ± 9 cm) completed a baseline 3 MT, 10 repetition maximum testing on leg-press and leg-extension machines, and post-bout 3 MTs following a HIT (4:2 second cadence) or traditional RT bout (1:1 second cadence). Measurements of CP from the 3 MT were similar between the baseline, post-HIT (? = 0.96) and post-traditional RT bouts (? = 0.98). Neither HIT (269.2 ± 51.3 W) nor traditional RT (275.1 ± 51.3 W) evoked depreciations (P > 0.05) in P150 s from the baseline (275.1 ± 45.4 W). Moreover, estimates of W’ at the baseline (8.3 ± 3.2 kJ) were unaffected (P > 0.05) either by the HIT (7.6 ± 2.3 kJ)… Continue reading →