| Abstrakt: |
Thirty-one male subjects participated in each of two experiments involving a hand-gripping exercise. In Experiment I the task was to maintain a maximum, static contraction for 1 min, while in Experiment II the exercise consisted of maximal rhythmic contractions performed for 3 min at a rate of 30/min. Following each exercise bout, strength was determined at either 10, 35, 70, 115, 170, or 235 sec of recovery. In both experiments, each subject was tested on six occasions; therefore, the ‘strength levels for all subjects were assessed at each period of observation during recovery. Results revealed that recovery was very rapid in both experiments but was more rapid following the isotonic task. Recovery from isometric fatigue was virtually complete after 235 sec of rest, but at the same time period following rhythmic exercise the strength level had surpassed that recorded at the initiation of exercise. Both recovery patterns followed a double-component exponential curve, but the fastacting, first component persisted for a longer time period following the isotonic task. Principal component rate constants were identical for the two conditions. |
