Effect of heavy resistance training on performance variables in endurance athletes
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The purpose of this study was to investigate the effects of 10 weeks of heavy resistance training on performance variables in endurance athletes. Thirteen healthy male endurance athletes (age = 23.6 i 5.1 yr, ht = 178.8 i 6.6 cm, wt = 76.0 * 8.2 kg) were assigned to either a heavy resistance training (HRT) group (N = 7) or a control (N = 6) group. No changes in peak VOz or body composition occurred in the HRT group. Significant increases (p c .05) in one repetition maximum (1 RM) bench press and squat strength occurred in the HRT group (3.9% and 10% respectively). The HRT group experienced significant reductions (p < .05) in blood lactate accumulation at four of the seven treadmill stages. These findings indicate that HRT does not effect peak VOz or body composition, but does increase 1 RM strength and may decrease blood lactate accumulation at high running intensities in endurance athletes.