The Study
Muscle mass and insulin sensitivity in postmenopausal women after 6-month exercise training
This study watched a group of women before and after an exercise program to see what changed. It can show that two things happened at the same time (like muscle mass and insulin resistance), but it can't prove one caused the other.
Analysis score
Maximum 72 for a cohort study.
Where the score came from
Some women did exercise for 6 months and gained muscle, but their bodies got worse at handling sugar. Even though they lost fat and weight, the more muscle they gained, the harder it was for their body to use insulin properly.
Where does this study sit?
Systematic Reviews & Meta-analyses
Max 100Randomized Trials
Max 90Cohort Studies
Max 72Case-Control
Max 58Cross-Sectional
Max 44Case Reports & Series
Max 30Expert Opinion
Max 540 / 100
Quality score
Groups of people are followed over time to see who develops an outcome. Strong for identifying risk factors and associations, but cannot prove causation as firmly as RCTs.
Key takeaways
Summary
Based on the study abstract and findings.
- 1This means that just gaining muscle may not always improve health in this group of women.
- 248 women exercised for 6 months.
- 3They lost weight and fat.
- 4Muscle gain was linked to 28% of the worsening in insulin sensitivity.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Climacteric
Year
2015
Authors
B. K. J. Glouzon, R. Barsalani, Jean‐Christophe Lagacé, I. Dionne
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.