Functional Performance With Age: The Role of Long-Term Strength Training

Area of Science:

• Gerontology
• Exercise Physiology
• Kinesiology

Background:

• Physical function naturally declines with aging.
• The impact of long-term strength training on age-related functional limitations is not fully understood.

Purpose of the Study:

• To investigate how long-term strength training influences functional performance across various force demands in older adults.
• To compare strength-trained master athletes (MAs) with recreationally active older adults (AEs), sedentary older adults (SOAs), and young controls.

Main Methods:

• Cross-sectional study design.
• Assessed maximal muscle strength, rate of force development (RFD), and functional performance in four tasks (chair-rising, stair-climbing, walking speed, 1-leg standing).
• Categorized functional tasks into more and less force-demanding.

Main Results:

• Master athletes (MAs) demonstrated significantly higher maximal strength and RFD compared to all other groups.
• MAs outperformed AEs and sedentary older adults (SOAs) in more force-demanding tasks like chair-rising and stair-climbing.
• MAs and AEs showed similar performance in less force-demanding tasks, both superior to SOAs.

Conclusions:

• High muscle force-generating capacity, maintained through strength training, benefits functional performance in aging.
• Recreational activity alone may not suffice to preserve function in demanding tasks.
• Strength training is crucial for promoting healthy aging and maintaining physical independence.