Key result
Low cardiorespiratory fitness alone and combined with low lower-limb muscle strength were associated with a higher risk for Metabolic Syndrome (PR 1.27 and PR 1.32, respectively) in older adults, whereas low muscle strength alone was not.
Why the study?
The study was designed to investigate the independent and joint associations of low cardiorespiratory fitness and lower-limb muscle strength with cardiometabolic risk in older adults.
Does low cardiorespiratory fitness and lower-limb muscle strength increase cardiometabolic risk in older adults?
Cross-Sectional (n=360)
Does low cardiorespiratory fitness and lower-limb muscle strength increase cardiometabolic risk in older adults?
Low cardiorespiratory fitness, but not low lower-limb muscle strength alone, is associated with higher cardiometabolic risk in older adults, highlighting the importance of fitness assessment for cardiovascular disease risk screening.
The aim of this study was to investigate the independent and joint associations of low cardiorespiratory fitness and lower-limb muscle strength with cardiometabolic risk in older adults. A total of 360 community-dwelling older adults aged 60-80 years participated in this cross-sectional study. Cardiometabolic risk was based on the diagnosis of Metabolic Syndrome and poor Ideal Cardiovascular Health according to the American Heart Association guidelines. Cardiorespiratory fitness and lower-limb muscle strength were estimated using the six-minute walk and the 30-second chair stand tests, respectively. Participants in the 20th percentile were defined as having low cardiorespiratory fitness and lower-limb muscle strength. Poisson's regression was used to determine the prevalence ratio (PR) and 95% confidence intervals (CI) of Metabolic Syndrome and poor Ideal Cardiovascular Health. Participants with low cardiorespiratory fitness alone and combined with low lower-limb muscle strength were similarly associated with a higher risk for Metabolic Syndrome (PR 1.27, 95% CI 1.09-1.48, and PR 1.32, 95% CI 1.10-1.58, respectively), and poor Ideal Cardiovascular Health (PR 1.76, 95% CI 1.25-2.47, and PR 1.65, 95% CI 1.19-2.28, respectively). Low lower-limb muscle strength alone was not associated with a higher risk for either Metabolic Syndrome or poor Ideal Cardiovascular Health (PR 1.23, 95% CI 0.81-1.87, and PR 1.11, 95% CI 0.89-1.37, respectively). Low cardiorespiratory fitness alone or combined with low lower-limb muscle strength, but not low lower-limb muscle strength alone, was associated with a higher cardiometabolic risk in older adults. The assessment of physical fitness may be a "window of opportunity" to identify youngest-old adults with a high cardiovascular disease risk.
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Câmara et al. (2023) conducted a cross-sectional in Cardiometabolic risk (Metabolic Syndrome and poor Ideal Cardiovascular Health) (n=360). Low cardiorespiratory fitness vs. Normal cardiorespiratory fitness and normal muscle strength was evaluated on Metabolic Syndrome (PR 1.27, 95% CI 1.09-1.48). Low cardiorespiratory fitness alone and combined with low lower-limb muscle strength were associated with a higher risk for Metabolic Syndrome (PR 1.27 and PR 1.32, respectively) in older adults, whereas low muscle strength alone was not.
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