PLASMA CATECHOLAMINE RESPONSE TO EXERCISE AND COLD ADAPTATION

Authors
  1. Chin, A.K.
  2. Seaman, R.
  3. Kapileshwarker, M.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN);York Univ, Toronto ONT (CAN) Human Performance Lab
Abstract
Male rats were administered light, moderate, and heavy exercise programs for 3 weeks. Following the exercise programs, the nonexercised control and the three exercised groups were administered a cold-tolerance test at -20oC for 3 hr. Within the cold-exposed groups, the exercised animals exhibited plasma catecholamine and corticosteroid levels that were significantly lower than the nonexercised group (P < 0.01). This lower sympathoadrenal activity may be attributable to a less severe stressing effect of cold in the exercised animals. The findings indicate that physical training enhances cold tolerance in rats.
Report Number
RP-881 — Research Paper
Date of publication
01 Jan 1973
Number of Pages
4
Reprinted from
J of Applied Physiology, vol 34, no 4, 1973, p 409-412
DSTKIM No
73-05182
CANDIS No
19993
Format(s):
Hardcopy

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