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Muscle performance in octogenarians: Factors affecting dynapenia
Joyce de Sousa Diniz1, Dahan da Cunha Nascimento2, Ivo Vieira de Sousa Neto3
1Department of Gerontology, Catholic University of Brasilia, UCB, Brasilia, DF, Brazil.
Journal of Bodywork and Movement Therapies
|June 18, 2023
Summary
Muscle strength in octogenarians is influenced by gender, age, muscle quality index, and appendicular skeletal muscle mass. These factors are key for understanding age-related decline and guiding treatments.
Area of Science:
- Gerontology
- Muscle Physiology
- Aging Research
Background:
- Muscle performance is crucial for health outcomes in adults.
- Risk factors affecting muscle strength in octogenarians require further investigation.
Purpose of the Study:
- To identify potential risk factors negatively impacting muscle strength in octogenarians.
Main Methods:
- Observational, descriptive, cross-sectional study of 87 octogenarians.
- Assessed handgrip strength (HGS), appendicular skeletal muscle mass (ASMM), body fat percentage, and muscle quality index (MQI).
- Used multiple linear regression to identify predictive factors of muscle strength.
Main Results:
- Females exhibited lower HGS than males.
- Increased MQI and ASMM were associated with higher HGS.
- Each additional year of age correlated with decreased HGS.
Conclusions:
- Gender, age, MQI, and ASMM significantly influence octogenarian muscle strength.
- These intrinsic and extrinsic factors are vital for understanding age-related complications.
- Findings can inform treatment guidance for healthcare professionals.
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