Hand grip beats BP in assessing health

The firmness of your hand grip is better than your blood pressure at assessing your health, researchers at the Population Health Research Institute of McMaster University and Hamilton Health Scienceshave found, and reduced muscular strength, measured by your grip, is consistently linked with early death, disability and illness.

“Grip strength could be an easy and inexpensive test to assess an individual’s risk of death and cardiovascular disease,” said principal investigator Dr Darryl Leong, an assistant professor of medicine at the Michael G DeGroote School of Medicine and cardiologist for the hospital. “Doctors or other healthcare professionals can measure grip strength to identify patients with major illnesses such as heart failure or stoke who are at particularly high risk of dying from their illness.”

The study followed almost 140,000 adults aged 35 to 70 over four years in 17 countries. Their muscle strength was measured using a handgrip dynamometer. They were taking part in the institute’sProspective Urban-Rural Epidemiology (PURE) study.

The researchers found that for every five kilogram decline in grip strength, there was a one in six increased risk of death from any cause. There was the same 17% higher risk of death from either heart disease or stroke, or non-cardiovascular conditions. These associations with grip strength were not accounted for by differences in age, sex, education level, employment status, physical activity, tobacco and alcohol use, diet, BMI, waist-to-hip ratio or other conditions such as diabetes, hypertension, cancer, coronary artery disease, COPD, stroke or heart failure, or their country’s wealth.

Healthy grip strength does depend on the individual’s size and weight, and in this study appeared to vary with ethnicity. Further analysis is needed to identify the cut-offs for healthy grip strength in people from different countries.

Leong added that more research is also needed to establish whether efforts to improve muscle strength are likely to reduce an individual’s risk of death and cardiovascular disease.

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