High-intensity interval running impairs subsequent upper limb strength performance

BACKGROUND This study compared the effect of treadmill running on subsequent upper limb exercise performance in young men. METHODS Seventeen men (24.8±5.2 years) completed a: 1) bench press resistance control session; 2) interval protocol followed by and 3) continuous session. Four sets were performed at 80% 1RM up to volitional failure. In protocol, eight sprints 40s 100% velocity maximal oxygen uptake, with 20s passive between them performed, whereas 30-min 90% heart rate corresponding second ventilatory threshold was performed. The number repetitions each set condition recorded using a two-way repeated measures ANOVA. RESULTS (18.7±4.9 repetitions) resulted reduction (21.4±5.4 (P=0.002); did not affect (20.6±4.4 repetitions). total reduced from all protocols (P<0.001). CONCLUSIONS results evidenced an impairment strength after high intensity interval, but moderate running, which has implication for concurrent training planning prescription.