Physical activity, sedentary behavior and functionality in older adults: A cross-sectional path analysis.

Area of Science:

• Gerontology
• Public Health
• Kinesiology

Background:

• Disability negatively impacts older adults' health, influenced by lifelong healthy lifestyles.
• Understanding sedentary behavior, physical activity, and functionality is key for public health interventions.

Purpose of the Study:

• To investigate the relationships between physical activity, sedentary behavior, and functionality in older adults.
• To identify potential mediating factors in these relationships.

Main Methods:

• Analysis of variables based on the International Classification of Functioning, Disability and Health (ICF) model.
• Inclusion of factors like activity, participation, health conditions, body functions/structures, environmental, and personal factors.
• Study involved 419 older adult participants.

Main Results:

• Physical activity directly associated with instrumental activities of daily living (IADL) disability, mediated by self-esteem, aerobic endurance, and agility/balance.
• Sedentary behavior indirectly associated with IADL disability, mediated by aerobic resistance, nutritional status, and agility/balance.
• Physical activity indirectly associated with basic activities of daily living (BADL) disability, mediated by aerobic resistance and IADL; sedentary behavior associated with BADL disability, mediated by aerobic resistance and lower limb flexibility.

Conclusions:

• Functionality in older adults is multidimensional.
• Mediating factors such as self-esteem, physical fitness (aerobic resistance, agility, balance, flexibility), nutritional status, and IADL performance are critical.
• Strategies promoting physical activity and reducing sedentary behavior must consider these multifaceted mediators.