The Effect of Aerobic Exercise During the Interset Rest Periods on Kinematics, Kinetics, and Lactate Clearance of Two Resistance Loading Schemes
Faculty of Computing, Health and Science
School of Exercise and Health Sciences / Centre for Exercise and Sports Science Research
Mohamad, NI, Cronin, JB, and Nosaka, KK. The effect of aerobic exercise during the interset rest periods on kinematics, kinetics and lactate clearance of two resistance loading schemes. J Strength Cond Res 26(1): 73–79, 2012—It may be possible to enhance set and session kinematics and kinetics by engaging in low-intensity aerobic exercise during the interset rest period. The purpose of this study therefore was to quantify the change in session kinematics and kinetics of 35% 1RM and 70% 1RM loading schemes equated by volume, when aerobic exercise or passive rest was undertaken between sets. Twelve male student athletes were recruited for this study. Squat average force, peak force, average power, peak power, total work, and total impulse were quantified using a force plate and linear transducer. Blood lactate samples were taken before set 1, after set 1, after set 2, and after the last set performed. No significant (p < 0.05) differences (0.37–9.24%) were found in any of the kinematic and kinetic variables of interset after active or passive interset rest periods. Significant increases (64–76%) in blood lactate occurred from the inception of exercise to completion, for both the heavy and light loading schemes. However, no significant differences in lactate accumulation were noted, whether active or passive recovery was undertaken in the interest rest period. It was concluded that active recovery in the form of low-intensity cycling offered no additional benefits in terms of lactate clearance and enhancement of set and session kinematics and kinetics.