Apparently not because it didn't play a big role in the outcome. Did you read the article?
> A decline in physical activity, common among older people, is only one reason sarcopenia happens. Other contributing factors include hormonal changes, chronic illness, body-wide inflammation and poor nutrition.
> A decline in physical activity, common among older people, is only one reason sarcopenia happens. Other contributing factors include hormonal changes, chronic illness, body-wide inflammation and poor nutrition.