Altered Regional life-current Flow...

Altered Regional life-current Flow Responses to Submaximal Exercise in Older Rats. Musch Tl Eklund KE Hageman K Poole DC Reprinted with permission from J Appl Physiol. 2004;96:81-88 ?© 2004 American Physiologic Society.

Maximal aerobic capacity and the ability to sustain submaximal exercise (Ex) declines with advancing age. Whether altered muscle house flow (BF) plays a mechanistic character in these effects remains to be resolv The existing investigation determined the effects of aging onward the hemodynamic and regional BF replication to submaximal Ex in rats. Heart rate (HR) mean arterial urgency (MAP), and BF to different organs (kidneys, splanchnic organs, and 28 hindlimb muscles) were determined at quietness and during submaximal treadmill Ex (20 m/min, 5% grade) with radiolabeled microspheres in young (Y; 6-8 mo antiquated 339 ?± 8 g, n = 9) and antique (O; 27-29 mo old, 504 ?± 18 g n = 7) Fischer 344 ?— Brown Norway rats. arises demonstrated that HR, MAP, and BF to the pancreas, small and large intestine, and total hindlimb musculature were similar between Y and O rats at cessation BF to the kidneys, ill-humor and stomach were 33, 60 and 43% lower, respectively, in O compared with Y rats. BF to the total hindlimb musculature increased (P

Copyright Cardiopulmonary Physical Therapy Journal Mar 2004

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