Physiological responses using 2 high-speed resistance training protocols.
This study compared physiological responses to 2 high-speed resistance training (RT) protocols in untrained adults. Both RT protocols included 12 repetitions for the same 6 exercises, only differing in continuous (1 x 12) or discontinuous (2 x 6) mode. For discontinuous mode, there was a 15-second rest interval between sets. We hypothesized that the 2 x 6 protocol was less physiologically demanding than the 1 x 12 protocol. Fifteen untrained adults randomly performed the protocols on 2 different days while heart rate (HR), blood lactate (BL), rate of perceived exertion (RPE), and concentric phase mean power (CPMP) were measured. Significantly lower values (mean +/- SE) were seen with the discontinuous protocol for exercise HR (119 +/- 5 vs. 124 +/- 5 b x min(-1)), BL (5.7 +/- 0.5 vs. 6.7 +/- 0.3 mMol/L), and RPE (5.4 +/- 0.3 vs. 5.8 +/- 0.4) (p < 0.05). CPMP tended to be higher in the discontinuous protocol, especially for the 2 last repetitions. The discontinuous protocol was significantly less physiologically demanding, although similar or higher CPMP values were obtained. These findings may help foster long-term adherence to RT in untrained individuals. However, future studies are needed to compare physiological adaptations induced by these 2 RT protocols.
Coelho
Carla Werlang
CW
Physical Education Graduate Program, Gama Filho University, Rio de Janeiro, Brazil.
Hamar
Dusan
D
de Araújo
Claudio Gil Soares
CG
D000328:Adult; D015308:Anaerobic Threshold; D000704:Analysis of Variance; D002320:Cardiovascular Physiological Phenomena; D015331:Cohort Studies; D015444:Exercise / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000502:physiology; D006439:Hemodynamics / Q000502:physiology*; D006801:Humans; D019344:Lactic Acid / Q000378:metabolism*; D008297:Male; D018482:Muscle, Skeletal / Q000502:physiology; D010101:Oxygen Consumption / Q000502:physiology; D010806:Physical Education and Training / Q000379:methods*; D010807:Physical Endurance; D011336:Probability; D012680:Sensitivity and Specificity; D014891:Weight Lifting / Q000502:physiology*
D019344:Lactic Acid