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Combined high-intensity strength and aerobic training in patients with congestive heart failure [with consumer summary]
Barnard KL, Adams KJ, Swank AM, Kaelin M, Kushnik MR, Denny DM
Journal of Strength & Conditioning Research 2000 Nov;14(4):383-388
clinical trial
5/10 [Eligibility criteria: Yes; Random allocation: Yes; Concealed allocation: No; Baseline comparability: Yes; Blind subjects: No; Blind therapists: No; Blind assessors: No; Adequate follow-up: Yes; 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*

The American Heart Association, American College of Sports Medicine, National Strength and Conditioning Association, and the Surgeon General support the addition of strength training (ST) to aerobic exercise for optimizing exercise outcomes. This study evaluated an 8-week combined high-intensity ST and aerobic exercise program on muscular strength, muscle soreness or injury, and cardiovascular responses in congestive heart failure (CHF) patients. Twenty-one men with CHF were randomly assigned to either aerobic training (AT; n = 7) or AT plus ST (ATST; n = 14). Muscular strength, cardiovascular responses, and rate of muscle soreness or injury to 1 repetition maximum (1RM) testing were measured before and after 8 weeks of training. The ATST group significantly improved strength in comparison with the AT group, with an average increase of 26%. No cardiovascular abnormalities, muscle injury, or significant muscle soreness were observed. The addition of a high-intensity ST program to aerobic training resulted in significant increases in strength in stable CHF patients with no abnormal responses.

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