Related Experiment Videos
Regular non-vigorous physical activity and cholesterol levels in the elderly
S Knight1, M A Bermingham, D Mahajan
1Department of Biomedical Sciences, Faculty of Health Sciences, University of Sydney, Australia.
Gerontology
|July 8, 1999
Summary
Regular non-vigorous physical activity in the elderly is linked to higher high-density lipoprotein cholesterol (HDL-C) levels. This may offer protection against coronary heart disease (CHD) compared to sedentary lifestyles.
Area of Science:
- Gerontology
- Cardiovascular Health
- Exercise Physiology
Background:
- High-density lipoprotein cholesterol (HDL-C) is a key indicator for coronary heart disease (CHD) risk in older adults.
- While vigorous activity is known to increase HDL-C, the impact of less intense exercise remains less understood in the elderly population.
Purpose of the Study:
- To investigate the association between regular non-vigorous physical activity and HDL-C levels in the elderly.
- To compare CHD risk factors, particularly HDL-C, between active elderly individuals and a previously studied frail elderly group.
Main Methods:
- The study involved 70 elderly subjects (51 women, 19 men) who completed lifestyle and medical history questionnaires.
- Anthropometric measurements and analyses of total cholesterol (TC), HDL-C, and lipoprotein (a) were performed.
- Results were compared with a previously assessed cohort of frail elderly individuals.
Main Results:
- Elderly individuals engaging in weekly non-vigorous physical activity showed significantly higher HDL-C levels, adjusted for BMI and waist-to-hip ratio (WHR).
- Active women had higher total cholesterol (TC), but a trend towards a lower TC/HDL ratio was observed, suggesting a favorable cholesterol profile.
- Waist-to-hip ratio (WHR) was inversely correlated with HDL-C in both active and frail men, and active women, while BMI was negatively associated with HDL-C in frail women.
Conclusions:
- Regular non-vigorous physical activity is associated with elevated HDL-C concentrations in the elderly compared to sedentary, frail individuals.
- Increased HDL-C may contribute to reduced CHD risk in active elderly individuals.
- Interpreting total cholesterol (TC) levels in active elderly women requires consideration of HDL-C levels due to potential variations in cholesterol composition.