Abstract
Two groups of Sprague-Dawley rats were trained for 10 days to swim to exhaustion and then irradiated on the eleventh day, with group I being irradiated during a state of exhaustive fatigue and group II irradiated immediately before a period of swimming to exhaustive fatigue. Both groups were also given a second period of swimming 2 hr after termination of the first period. All Ss received 1200 r of Co/sup 60/ at 600 r/min, which is an LD/sub 100/ for the facility used. Group II made a faster recovery from the fatigue of the first swim on the day of irradiation as evidenced by their significantly longer swimming time 2 hr later, but showed a significantly greater mortality rate. Anoxia at the time of irradiation may explain the increased survival of the Ss group I, but it will not account for the difference in recovery from fatigue. (auth)
Published Version
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