Abstract des Autors

To examine the efficacy of a 3-week, high-intensity, resistance exercise protocol for inducing overtraining, 9 subjects trained their lower body on a squat-simulating resistance exercise machine. Five subjects performed a training (Trn) protocol 5 days a week to elicit an overtraining response. Four subjects performed a control (Con) protocol 2 days a week. Test batteries of sprint, jumps, and strength tests were performed four times during the study at 1-week intervals (T1, T2, T3, T4). One-RM performances increased for the Trn group by T2 and remained agumented through T4. Overtraining did not occur, but other performances were attenuated for the Trn group. Increased sprint times for 9.1 m and 36.6 m were evident by T2 for theTrn group and remained slower through T4. Leg extension torque decreased for the Trn group by T4. Future attempts to induce intensity-dependent overtraining for study should use greater training intensities or different training modalities and should monitor physiological factors that may contribute to this phenomenon. Verf.-Referat