DEVELOPMENT OF "SPORTS ANEMIA" IN PHYSICALLY FIT MEN AFTER DAILY SUSTAINED SUBMAXIMAL EXERCISE

Authors
  1. Radomski, M.W.
  2. Sabiston, B.H.
  3. Isoard, P.
Corporate Authors
Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Hematological changes were studied in physically fit young soldiers who marched 35 km/d for 6 d, working at 35% of their VO sub 2 max. Four days of marching produced decreases in numbers of erythrocytes (RBC) and in hematocrit (Hct). This "sports anemia" persisted beyond day 6 into the post-march period and was accompanied by decreases in hemoglobin (Hb), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), and mean corpuscular volume (MCV). The latter decrease was attributed to a preferential destruction of large RBC. The post-march period was characterized by an early (2 d) recovery of RBC numbers, Hct, and MCV, and a persistent (>4 d) decrease in Hb, MCH, and MCHC. This pattern, characteristic of hypochromic macrocystosis, possibly reflects a premature release of young RBC from the bone marrow. TRUNCATED
Report Number
PUB-79-X-17 — Paper presented to the 50th Annual Meeting of the Aerospace Medical Association, 1979
Date of publication
01 Jan 1980
Number of Pages
5
Reprinted from
Aviat Space Environ Med, vol 51, no 1, 1980, p 41-45
DSTKIM No
80-00758
CANDIS No
88459
Format(s):
Hardcopy;Originator's fiche received by DSIS

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