People Who Became Active Later Had Less Muscle Loss in Old Age
Graded Moderate — the study followed 4,702 people in Norway across three decades; exercise was self-reported, and as an observational study it cannot prove cause and effect.
- Design
- Prospective cohort study
- Participants
- 4,702
- Duration
- —
- Funding
- Liaison Committee between the Central Norway Regional Health Authority and…
People who only became active over the years still had muscle loss less often than people who were inactive at all three assessments.
The more often people got enough exercise across their adult years, the less often they had age-related muscle loss in later life. It was rarest among those who were active at all three check-ins over the decades. But people who only became active over the years also had muscle loss less often than those who stayed inactive. People who stopped being active showed no clear advantage.
The data come from Norway's HUNT study. It included 4,702 people with an average age of 76. Between 1984 and 2008, they reported three times how much they moved. Active meant meeting the World Health Organization advice: at least 150 minutes of moderate or 75 minutes of vigorous activity a week. In 2017 to 2019, researchers measured strength and muscle mass. Muscle loss counted as confirmed when both were low. The link was stronger for confirmed muscle loss than for low strength alone.
Exercise was self-reported, not measured. The link could also run the other way: people already losing muscle may have moved less. And almost 3,000 people were left out for missing data, and they were older and weaker.
Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.