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Genes Dictate Fitness: Are You Genetically Fit?
18 Apr
Summary
- Specific genetic variants are linked to higher fitness levels.
- These genes correlate with a reduced risk of developing diseases.
- Fitness is influenced by genetics but remains a modifiable factor.
New research indicates that certain genetic variants are associated with increased cardiorespiratory fitness and a reduced risk of developing numerous diseases. These genetic predispositions may explain why some individuals appear to achieve fitness more easily than others.
The study, published in Medicine & Science in Sports & Exercise, identified 34 associations between genetically predicted aerobic fitness and various health outcomes. Individuals with these genetic traits showed a lower risk of stroke, higher heart rate variability, and lower blood pressure.
While genetics play a role, experts stress that fitness is a modifiable factor. Regular aerobic exercise, such as running, cycling, or swimming, improves cardiorespiratory fitness and offers broad health benefits, irrespective of an individual's genetic starting point.
Cardiorespiratory fitness, the ability of the heart, lungs, and muscles to work together during sustained exercise, is crucial for overall health. Physical inactivity remains a significant risk factor for cardiovascular disease, a risk that is not negated by possessing 'fitness genes'.
