Exercise Training save from decays...

Exercise Training save from decays Coronary Flow and Reduces Infarct Size after Ischemia-Reperfusion in Rat Heart. Brown DA, hebrew KN, Sparagna GC, Musch Tl Moore RL Reprinted with permission from J Appl Physiol. 2003;95: 2510-2518 ?© 2003 American Physiologic Society.

The weight of endurance training on the resistance of the heart to left ventricular (LV) functional deficit and infarction after a transient regional ischemia and after reperfusion was examined. Female Sprague-Dawley rats were randomly assigned to an endurance exercise training (Tr) form into groups or a sedentary (Sed) sway group. After 20 wk of training, hearts were excised, perfused, and instrumented for assessment of LV mechanical function, and the left anterior descending coronary artery was occlud to induce a transient regional ischemia (1 h) that was followed by the agency of 2 h of reperfusion. in every part much of the regional ischemiareperfusion protocol, coronary pour rates, diastolic function, and LV perform the operations indicated ined pressure were better preserved in hearts from Tr animals. During the regional ischemia, coronary melt to myocardium outside the isch?©mie clime at risk (ZAR) was maintained in Tr hearts, whereas it progressively barbarous in Sed hearts. On release of the coronary artery ligature, liquefy to the ZAR was greater in Tr than in S hearts, lnfarct size, indicateed as a percentage of the isch?©mie ZAR, was significantly smaller in hearts from Tr rats (24 ?± 3 v 32 ?± 2% of ZAR, P

Copyright Cardiopulmonary Physical Therapy Journal Mar 2004

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