Sarcopenia and Muscle Strength Reduce Mortality Risk in Elderly Women

Sarcopenia, the age‑related loss of muscle mass and strength, affects between 5% and 13% of people aged 60‑70 and up to 50% of those over 80, according to the Brazilian Society of Geriatrics and Gerontology. Symptoms include weakness, reduced walking speed, frequent falls and loss of autonomy. Diagnosis relies on clinical assessment and tests such as hand‑grip strength, chair‑rise time and gait speed. While there is no cure, the Ministry of Health advises regular resistance training and protein‑rich nutrition to slow progression.

A February 2026 study published in JAMA examined more than 5,000 women aged 63‑99 and found that higher muscular strength lowered all‑cause mortality by up to 33%. The researchers measured hand‑grip and chair‑rise performance while controlling for sedentary time, walking speed and inflammation. The findings reinforce the importance of preserving muscle strength for healthy ageing.

Brazil’s 2025 census showed 33 million citizens aged 60 or over (16.6% of the population), prompting calls for public‑health strategies that promote physical activity and nutrition among older adults. Canadian cardiologist Dr. Breno Giestal highlighted that maintaining muscle strength supports cardiovascular health and independence in later life.