Bone turnover increases during supervised treadmill walking in Thai postmenopausal women

Area of Science:

• Exercise Physiology
• Bone Metabolism
• Gerontology

Background:

• Treadmill walking is an accessible, low-risk exercise with health benefits.
• Postmenopausal women are at increased risk for bone loss and osteoporosis.
• Understanding exercise impacts on bone health is crucial for this demographic.

Purpose of the Study:

• To investigate the effects of a 3-month treadmill walking program on biochemical bone markers.
• To assess changes in bone resorption and formation in Thai postmenopausal women.

Main Methods:

• A supervised 3-month treadmill walking program was implemented.
• Participants walked 30 minutes/day, 3 days/week, at 55-70% maximal heart rate.
• Bone turnover markers, Crosslinked C-terminal telopeptides of type I collagen (CTX-I) and N-terminal propeptides of type I procollagen (PINP), were measured at baseline and post-intervention.

Main Results:

• Eighteen Thai postmenopausal women completed the study.
• Significant increases in both bone resorption (CTX-I) and bone formation (PINP) markers were observed (p < 0.01).
• Average CTX-I increased from 0.43 ± 0.14 to 0.80 ± 0.26 ng/ml.
• Average PINP increased from 52.15 ± 13.43 to 66.77 ± 22.82 ng/ml.

Conclusions:

• Three months of supervised treadmill walking increases bone turnover in Thai postmenopausal women.
• The findings suggest that treadmill exercise positively influences bone metabolism in this population.
• This intervention may be a viable strategy to manage bone health in postmenopausal women.