Between muscles, that is…We often blame ageing for muscle weakness, and think all muscles suffer the same. But in fact, that’s not the case.And that tells us something important about what’s really going on. Because the muscles hit hardest–our lower-body and stabilizing muscles (like those around the hips)–are the same ones we rely on most for daily movement. In other words, it’s not just aging. It’s inactivity. When we stop using these muscles as much, they pay the biggest price. And that’s bad news for mobility, balance, and independence.
Source: Candow DG, Chilibeck PD. Differences in size, strength, and power of upper and lower body muscle groups in young and older men.
J Gerontol A Biol Sci Med Sci. 2005;60(2):148-56. doi: 10.1093/gerona/60.2.148.
Daun F, Kibele A. Different strength declines in leg primary movers versus stabilizers across age-Implications for the risk of falls in older adults? PLoS One. 2019 7;14(3):e0213361. doi: 10.1371/journal.pone.0213361.







