Association Between Inspiratory Muscle Function and Balance Ability in Older People: A Pooled Data Analysis Before...

Area of Science:

• Gerontology
• Exercise Physiology
• Rehabilitation Science

Background:

• Aging is associated with declines in respiratory muscle function and balance.
• Inspiratory muscle training (IMT) has shown potential to improve respiratory function and balance in older adults.
• Understanding the relationship between inspiratory function, balance, and IMT adaptation is crucial for targeted interventions.

Purpose of the Study:

• To retrospectively analyze the relationship between inspiratory muscle function and balance ability.
• To explore the adaptation to IMT concerning inspiratory muscle function and balance in healthy older adults.
• To identify factors influencing IMT effectiveness on balance in different age subgroups.

Main Methods:

• Retrospective analysis of data from 129 healthy older adults (65-85 years).
• Participants underwent inspiratory and balance assessments, including the mini-balance evaluation system test, maximal inspiratory pressure, and peak inspiratory flow tests.
• Data were analyzed to determine baseline relationships and IMT-induced changes.

Main Results:

• Baseline inspiratory muscle function was positively correlated with balance ability (p < .05).
• IMT led to significant improvements in maximal inspiratory pressure (23.3%), peak inspiratory flow rate (8.0%), and maximal peak inspiratory power (14.9%).
• Improvements in inspiratory function were associated with enhanced balance (10.6%), with the oldest participants (76-85 years) showing the greatest balance improvements (17.0%).

Conclusions:

• Positive associations exist between inspiratory muscle function and balance ability, irrespective of IMT.
• Greater improvements in inspiratory muscle function correlate with greater enhancements in balance.
• IMT is an effective strategy for improving both inspiratory muscle function and balance in older adults, particularly benefiting the oldest individuals.