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High versus moderate intensity aerobic exercise in older adults: psychological and physiological effects
Swoap RA, Norvell N, Graves JE, Pollock ML
Journal of Aging and Physical Activity 1994 Oct;2(4):293-303
clinical trial
3/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: No; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: No; Intention-to-treat analysis: No; Between-group comparisons: Yes; Point estimates and variability: Yes. Note: Eligibility criteria item does not contribute to total score] *This score has been confirmed*

This study examined the psychological and physiological effects of a 26-week aerobic exercise program on a sample of sedentary older men (n = 26) and women (n = 23). Subjects were randomly assigned to either a high intensity exercise group (80 to 85 percent of maximal heart rate reserve), a moderate intensity exercise group (65 to 70% of maximal heart rate reserve), a moderate intensity exercise group. Results indicated that subjects in the high intensity exercise group exhibited significant increases in aerobic capacity compared to the moderate intensity group. Both exercising groups improved aerobic capacity and had significant decreases in body weight compared to the control group. Exercising subjects also reported significantly fewer symptoms of depression at the end of the program, but not fewer than the control group. Overall, increases in VO2max were associated with decreases in depression.

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