The purposes of the study were to compare ratings of perceived exertion of aerobic dance and treadmill performances under equal work loads and to compare ratings of perceived exertion by males and females in aerobic dance and treadmill work. Subjects were twenty-six college men and women in co-educational conditioning classes. Heart rates were monitored after work bouts and perceived exertion was determined using Borg's RPE scale. Data were analyzed by a two-way analysis of variance with repeated measures. Conclusions of the investigation were: (1) aerobic dance is perceived as less strenuous than the treadmill under equal work loads, and (2) males and females perceive aerobic dance as less strenuous than the treadmill under equal energy bouts.

This study investigated possible effects of hypoxic training upon speed of high school sprint freestyle. Thirty-eight subjects, grouped as their two schools, performed identical loads during the ten-week program. The Experimental group used hypoxic techniques for about one-half of each workout. Pretests and posttests conducted for the 50-yard and 100-yard distances yielded highly correlated mean scores, with marked differences between the two groups. Analysis of covariance was used, selecting the .05 level for rejection. The comparison of adjusted group means indicated neither group superior at 50 yards, while the 100-yard F-ratio was significant at the .0047 level favoring hypoxic training. It is recommended that hypoxic techniques be incorporated into existing programs, possibly benefitting other strokes.