Glycemic variability and muscle loss in elderly type 2 diabetes: insights from continuous glucose monitoring and chest CT in 303 patients - Report - MDSpire
Advertisement
Glycemic variability and muscle loss in elderly type 2 diabetes: insights from continuous glucose monitoring and chest CT in 303 patients
Association of Glycemic Fluctuations with Muscle Mass Loss in Older Adults
Overview
This study investigates the relationship between glycemic fluctuations and pectoralis muscle mass in older adults with type 2 diabetes mellitus (T2DM). Findings indicate that greater glycemic variability is independently associated with lower muscle mass, particularly in patients with longer diabetes duration or lower body mass index.
Background
Sarcopenia is prevalent among older adults with T2DM, leading to increased risks of frailty and functional decline. Traditional glucose monitoring methods do not capture short-term fluctuations, which may independently affect muscle health.
Data Highlights
Glycemic Variability Metric
Adjusted R²
Coefficient of Variation (CV)
0.22
Time Below Range (TBR)
0.21
Standard Deviation (SD)
0.20
Mean Amplitude of Glycemic Excursions (MAGE)
0.19
Key Findings
Four glycemic variability indicators (CV, SD, MAGE, TBR) were linked to lower pectoralis muscle mass (PMI) (P < 0.05).
CV explained the largest variance in PMI (adjusted R² = 0.22).
A linear dose-response relationship was observed between CV and PMI (P for trend < 0.001).
The inverse association was stronger in patients with diabetes duration ≥ 10 years (β = –0.18, P < 0.001).
Significant interactions were noted for patients with BMI < 24 kg/m² (β = –0.18, P < 0.001).
Clinical Implications
Monitoring glycemic variability may be essential for preserving muscle mass in older adults with T2DM.
Conclusion
The study highlights the importance of glycemic variability in relation to muscle mass loss in older adults with T2DM.
