Abstract
Aims. – To study T-wave amplitude changes during exercise and recovery in trained athletes. Methods and results. – Thirty two athletes of both sexes underwent an incremental cycle test. Cardiac electric activity (ECG) was recorded every minute during exercise and the following five minutes of recovery. T-wave amplitude was manually measured on V5 ECG complex enlarged 4-fold. The statistical analysis was done using two factor's Anova. The results showed that T-wave amplitude 1) increased significantly during the three first minutes of the recovery, 2) was not linked to T-wave decrease or increase during previous exercise, and 3) was significantly lower in females than in males. Pathophysiological mechanisms of this ECG repolarisation in athletes during recovery following exercise remains unclear.
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