Aging Without Losing Your Edge: How to Preserve Strength, Balance, and Reflexes

Longitudinal data from about 1,900 adults aged 70–79 show that leg strength declines far faster than muscle mass, while peak aerobic capacity falls due to lower maximum heart rate and reduced muscle oxygen use; the rate of decline is largely fixed, but your starting fitness matters. Resistance training improves strength and function even in the 70s and 80s, with progressive overload being key. Exercise reduces falls by roughly 23% overall, with balance work plus resistance training cutting falls by about 34%; stretching alone offers little proven benefit. Training reflexes via step/ trip-and-recovery programs can halve fall risk. You can start without a gym—stand from a chair, stand on one leg, or use stairs—and staying active is also linked to lower dementia risk. Consult a GP before starting if you’ve been inactive or have osteoporosis and build up gradually.