title: Effect of running versus isometric training programs on healthy elderly at rest.
abstract: Left ventricular function and hemodynamic alterations at rest were measured echocardiographically following running or isometric training in 40 healthy elderly. They were randomly assigned into two groups. Twenty (67 +/- 4 years) were engaged in running and 20 (67.8 +/- 3.8 years) in isometric training programs. All subjects underwent a 12-week program, 3 times a week 30 min each session. The running exercise (REX) group had an aerobic exercise conditioning program at 70% of their VO2max. The program for the isometric exercise (IEX) group included weight lifting utilizing large muscle mass at 30% of their maximal voluntary contraction. After training, the REX group increased significantly (p less than 0.05) their VO2max from 2.08 +/- 0.37 to 2.36 +/- 0.41 liter/min and ejection fraction 56 +/- 5.9 to 62 +/- 6.1%. They decreased significantly their heart rate, from 73 +/- 7 to 65 +/- 7 beats/min. No change occurred in the IEX group in left ventricular function and hemodynamic parameters. These data suggest that left ventricular responses at rest differ between the two groups following a short-term training with a favorable response after REX training. In addition, this study demonstrated that a controlled aerobic training program is a better way to improve physical capacity than is a weight lifting program for trained healthy elderly.
authors: Life Sciences and Sports Medicine Department, Zinman College, Wingate Institute, Israel.
authors: M
authors: M
authors: Sagiv
authors: N
authors: N
authors: Fisher
authors: A
authors: A
authors: Yaniv
authors: J
authors: J
authors: Rudoy
mesh_terms: D000368:Aged; D000375:Aging / Q000502:physiology*; D001823:Body Composition; D006801:Humans; D008297:Male; D010101:Oxygen Consumption; D010806:Physical Education and Training; D012146:Rest / Q000502:physiology; D012420:Running; D013318:Stroke Volume / Q000502:physiology; D014891:Weight Lifting