In order to begin searching for new markers for safe exercise training in @entity1 with @entity299 , we tested the sensitivity and reliability of the short-term variability of repolarization (STV( @entity1162 )) in comparison with @entity1162 interval, QTc, and T(peak)-T(end) interval (T(p-e)) in @entity1 with @entity299 . Nine @entity1 (8 @entity1 , 1 @entity1 ; 58    10 years) were enrolled. The cardiac rehabilitation (CR) program consisted of walking, bicycling on an ergometer, and calisthenics for 30-50 minutes/session and 3-5 sessions/week for 3 months. ECGs of 31 consecutive sinus beats were obtained before and after the CR program. RR and @entity1162 intervals were measured in the aVL lead. The mean orthogonal distance from the diagonal to the points of the Poincar   plots was determined using the following equation; STV( @entity1162 ) [=     @entity1162 (n+1)- @entity1162 (n)/(30   2(1/2))], as a marker of temporal dispersion of repolarization. Also, T(p-e) of 5 consecutive beats was measured as a marker of spatial dispersion. No fatal @entity943 were observed in the CR. No significant difference was observed in the RR or @entity1162 interval between at baseline and at the end of the CR program. Meanwhile, QTc, STV( @entity1162 ) and T(p-e) decreased significantly from 429    27 to 400    17 (P < 0.01), from 6.8    1.3 to 4.7    1.4 msec (P < 0.001), and from 74.8 (61.2/79.1) to 64.8 (51.4/70.7) msec (median (25th/75th percentile), P < 0.01), respectively. STV( @entity1162 ) together with T(p-e) and QTc may reflect the time-courses of safe exercise training.

Utility of short-term variability of repolarization as a marker for monitoring a safe exercise training program in @entity1 with XXXX .

@entity1 :: ('9606', 'Species') :: ['woman', 'patients', 'men'] @entity1162 :: ('MESH:D008133', 'Disease') :: ['QT'] @entity943 :: ('MESH:D001145', 'Disease') :: ['arrhythmias'] @entity299 :: ('MESH:D006331', 'Disease') :: ['cardiac diseases']
@entity299 :: (MESH:D006331,Disease) :: ['cardiac diseases']
