Key result
Upper limb strength measured by the 1-RM test was strongly correlated with V'O2peak in individuals with chronic heart failure (r = 0.70; p = 0.037).
Why the study?
It was unknown whether upper limb maximum strength in a multijoint exercise correlates with peak oxygen uptake in chronic heart failure patients.
Does upper limb strength measured by a 1-RM test correlate with V'O2peak in patients with chronic heart failure?
Cross-Sectional (n=16)
Does upper limb strength measured by a 1-RM test correlate with V'O2peak in patients with chronic heart failure?
Effect estimate: r = 0.70
p-value: p=.037
Upper limb strength measured by a 1-RM bench press test strongly correlates with V'O2peak in patients with chronic heart failure, offering a simple and inexpensive assessment tool.
Upper limb strength may associate with VO2peak in CHF; leaves open whether training improves capacity.
Purpose: This study aimed to evaluate whether there is a correlation between the maximum strength of upper limb when performing a multijoint exercise and peak oxygen uptake (V’O2peak) in Chronic Heart Failure (CHF) subjects. Method: This cross-sectional study involved CHF subjects with a left ventricular ejection fraction (LVEF) less than 50%, who underwent a cardiopulmonary exercise test (CPET) on a treadmill and 1-repetition maximum (1-RM) test for upper limb strength using a bench press exercise. Results: The sample consisted of 16 individuals aged 54 ± 12 years with a LVEF of 37 ± 7%. The V’O2peak was 14.98 ± 5.4 ml·min−1·kg−1 and mean maximum load in the 1-RM test was 38 ± 16 kg. There was strong correlation of V’O2peak with the load in the 1-RM test (r = 0.70; p = .037; r2 = 0.48). Conclusion: There is a strong correlation between the load in 1-RM test for upper limb with V’O2peak in CHF individuals. It is a safe, inexpensive and reproducible way to assess the muscle strength in this population.
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Souza et al. (2021) conducted a cross-sectional in Chronic Heart Failure (CHF) (n=16). Upper limb strength (1-RM test load) was evaluated on Correlation between maximum load in the 1-RM test and V'O2peak (r = 0.70, p=.037). Upper limb strength measured by the 1-RM test was strongly correlated with V'O2peak in individuals with chronic heart failure (r = 0.70; p = 0.037).
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