Key result
Physical activity is linked to less lean mass loss than caloric restriction during T2D weight loss.
Why the study?
The relative contributions of physical activity and caloric restriction to changes in weight, lean mass, and fat mass had not been quantified in people with type 2 diabetes.
Is physical activity associated with less lean mass loss compared to caloric restriction in people with type 2 diabetes undergoing weight loss?
Cohort (n=311)
Is physical activity associated with less lean mass loss compared to caloric restriction in people with type 2 diabetes undergoing weight loss?
p-value: p=0.05
In patients with type 2 diabetes undergoing weight loss, physical activity is associated with less lean mass loss compared to caloric restriction, highlighting its protective role.
May support prioritizing physical activity to limit lean mass loss during weight loss in type 2 diabetes; leaves open confirmation in dedicated randomized trials.
Introduction and Objective: Weight-loss intervention via physical activity (PA) and caloric restriction (CR) is recommended in people with type 2 diabetes (T2D). However, the relative contribution of PA and CR on weight, lean and fat mass have not been quantified. Methods: We analyzed data from the Look AHEAD randomized controlled trial of an intensive weight loss intervention. We included a sample with body composition measures at baseline, years 1 and 4. PA was assessed using the Paffenbarger Activity Questionnaire and caloric intake using a Food Frequency Questionnaire. Longitudinal associations of PA and CR with weight, lean and fat mass were examined via linear mixed models adjusted for intervention arm and covariates. Results: We included 311 participants (age 57 ± 8 yrs; 50% intervention arm; 67% female; 63% White). At year 1, lean mass loss associated with PA or CR did not reach statistical significance. By year 4, a 1-SD CR was associated with lean mass loss, while a 1-SD higher PA was associated with a smaller, non-significant lean mass loss (difference p=0.05) (Figure A). PA and CR were both associated with greater fat mass loss at both years. Both associations with fat mass were stronger in females, and PA association with less lean mass loss was stronger in males (p<0.05; Figure B-C). Conclusion: In people with T2D in a weight-loss trial, PA was associated with a smaller magnitude of lean mass loss than CR, suggesting a protective effect of PA during weight loss. Disclosure J. He: None. C.P. Oyeka: None. N. Srialluri: None. E.D. Michos: Consultant; Current; Arrowhead Pharmaceuticals, Inc., AstraZeneca, Boehringer Ingelheim International GmbH, Bayer AG, Eli Lilly and Company, Edwards Lifesciences Corporation, Merck & Co., Inc., Novo Nordisk, Novartis AG, Ionis Pharmaceuticals, New Amsterdam. Consultant; Ended; Pfizer Inc. K.C. Johnson: None. K.F. Moseley: None. D. Vaidya: None. W.L. Bennett: None. Funding NIH-NIDDK, R01DK127222
No takes yet. Share an insight, caveat, or question.
HE et al. (2026) conducted a cohort in Type 2 diabetes (n=311). Physical activity vs. Caloric restriction was evaluated on Lean mass loss at year 4 (p=0.05). In adults with type 2 diabetes undergoing weight loss, physical activity was associated with significantly less lean mass loss than caloric restriction over 4 years (difference p=0.05).
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: