Patterns of @entity1165 associated with training, deconditioning and retraining in elite athletes without XXXX .

@entity1165 @entity1540 @entity299 @entity943 @entity65
@entity1165 commonly occur in trained athletes during ambulatory Holter electrocardiography and are usually associated with a benign course. Such @entity943 have been demonstrated to be sensitive to short periods of athletic deconditioning; however, their response to retraining is not known. Twenty-four hour Holter electrocardiographic monitoring was performed at peak training and after 3 to 6 months of deconditioning and was repeated in the present study after 2, 6, and 12 months of retraining in 37 athletes with frequent and complex @entity1165 and without @entity65 . These subjects showed partial (101 to 500 ventricular premature complexes [VPCs]/24 hours) or marked (<100 VPCs) reversibility of @entity943 after deconditioning. Retraining initially resulted in a significant increase in @entity943 frequency compared with deconditioning (from 280    475 to 1,542    2,186 VPCs; p = 0.005), couplets (0.14    0.42 to 4.4    8.2; p = 0.005), and nonsustained @entity1165 (from 0 to 0.8    1.8; p = 0.02). Subsequently, a progressive reduction was seen in the frequency of all @entity943 during the 1 year of training to well below that at the peak training levels (VPCs 917    1,630, couplets 1.8    4.2, and nonsustained @entity1165 0.4    1.2). Such annual @entity943 reduction was significantly greater statistically in those athletes with marked reversibility after deconditioning than in the athletes with partial reversibility (69    139 vs 1,496    1,917 VPCs/24 hours, respectively; p = 0.007). No @entity299 or symptoms occurred during 1 year of follow-up. In conclusion, in elite athletes without @entity65 , a resumption in intense training after deconditioning was associated with variable, but prolonged, suppression of @entity1540 . The absence of adverse clinical events or symptoms associated with the resumption of training supports the continued eligibility in competitive sports for such athletes and is also consistent with the benign nature of physiologic @entity299 .
