Key result
Sedentary elderly individuals with heart failure had significantly lower absolute (362 W vs 438 W) and relative lower limb muscle power compared to those with coronary artery disease without heart failure.
Why the study?
The study was conducted to analyze and compare the absolute and relative muscle power of the lower limbs in sedentary elderly subjects with and without heart failure.
Does heart failure compromise lower limb muscle power in sedentary elderly people compared to those with coronary artery disease without heart failure?
Cross-Sectional (n=36)
Does heart failure compromise lower limb muscle power in sedentary elderly people compared to those with coronary artery disease without heart failure?
Heart failure is associated with significantly reduced absolute and relative lower limb muscle power in sedentary elderly individuals compared to those with coronary artery disease alone.
May indicate reduced lower-limb power in elderly HF; leaves open whether power-focused training improves outcomes.
Purpose. To analyze and to compare the absolute and relative muscle power of the lower limbs in sedentary elderly subjects with and without heart failure. Methods. The study included 36 elderly subjects (72 ± 6.5 years, 76.8 ± 4.8 kg, 171 ± 9.4 cm) divided into two groups: sixteen patients with heart failure versus twenty patients with coronary artery disease, but without heart failure. The muscle power of the lower limbs was assessed with a half-squat exercise; three repetitions were performed with three seconds of the interval between repetitions as fast as possible in the concentric phase. For the statistical analysis, unpaired Student's t-tests were used to compare the absolute and relative muscular power between groups. Results. Subjects without heart failure had significantly greater absolute (362 ± 18.5 W vs. 438 ± 22.3 W, p = 0.015) and relative (4.6 ± 0.2 W / kg vs. 5.9 ± 0.2 W / Kg, p = 0.001) muscle power versus subjects with heart failure. Conclusion. Heart failure harms the muscular power of the lower limbs in the elderly, which may influence the prognosis and evolution of the disease and capacity functional.
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Cascon et al. (2021) conducted a cross-sectional in Heart failure and Coronary artery disease (n=36). Heart failure vs. Coronary artery disease without heart failure was evaluated on Absolute muscle power of the lower limbs (W) (p=0.015). Sedentary elderly individuals with heart failure had significantly lower absolute (362 W vs 438 W) and relative lower limb muscle power compared to those with coronary artery disease without heart failure.
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