: As we reach middle age, muscle mass begins to decline by roughly 3–8% per decade [1]. Maintaining "mature" leg muscles through exercises like squats and lunges is vital for preventing falls and keeping functional independence [3, 10].
: Some mature athletes share stories of battling "leg shrinkage" (sarcopenia) by returning to heavy barbell squats to maintain the muscle development they built in their youth [19].
: A person's balance typically declines starting in midlife. While those in their 30s can often balance for a minute, the average drops to about 45 seconds by the 50s and 26 seconds by the 70s [7]. The Fitness Journey: Reclaiming Strength