Glycemic Control After Meals On People With Type 2 Diabetes and Prediabetes Following Resistance Exercise

Authors

Isaac Chapman, University of New MexicoFollow
Kosar Valaei, University of New MexicoFollow
Oscar Chavez, University of New MexicoFollow
Marissa Ramirez, University of New MexicoFollow
Jacob Dawes, University of New MexicoFollow
Maja Gebauer, University of New MexicoFollow
Christine M. Mermier, University of New MexicoFollow
Jonathan Little, University of British ColumbiaFollow
Luotao Lin, University of New MexicoFollow
Gretchen M. Ray, University of New Mexico College of PharmacyFollow
Roberto Mota Alvidrez, University of New MexicoFollow
Zachary A. Mang, University of New MexicoFollow
Fabiano Amorim, University of New MexicoFollow
Valmor Tricoli, Escola de Educação Física e Esporte - USPFollow
Flavio de Castro Magalhaes, University of New Mexico - Main CampusFollow

Abstract

Resistance exercise (RE) has been shown to improve glycemic control after a meal in type 2 diabetes (T2D) and prediabetes under controlled laboratory settings. PURPOSE: To investigate the effects of RE on glycemic control in a free-living environment. METHODS: This was a 4-arm randomized crossover study involving 22 participants with T2D (n=12) or prediabetes (n=10). Glucose was monitored using a continuous glucose monitoring device through the experimental situations that involved three separate exercise sessions: a high-intensity RE session (3 sets x 8 reps, 75%-1RM, 120 sec interval), a rest-redistribution RE session (6 sets x 4 reps, 75%-1RM, 60 sec interval), a low-load RE session (3 sets x 16 reps, 37.5%-1RM, 103 sec interval), and one control. After the sessions, participants were free to resume their daily activities. Glycemic response was assessed after sessions across 4 meals, in two consecutive days: lunch, dinner, breakfast, and lunch. All food was measured for caloric content and provided to participants a day before the situations, but ingestion was done on their own, in a free-living condition. RESULTS: No significant difference in glycemic control after any meal was found among situations. CONCLUSION: In a free-living condition, RE did not change glycemic control in response to meals in individuals with T2D and prediabetes. The present results were most likely caused by the free-living environment participants were in compared to the highly controlled laboratory environments employed in previous research. We believe the present design bears more significant ecological validity.

Recommended Citation

Chapman, Isaac; Valaei, Kosar; Chavez, Oscar; Ramirez, Marissa; Dawes, Jacob; Gebauer, Maja; Mermier, Christine M.; Little, Jonathan; Lin, Luotao; Ray, Gretchen M.; Mota Alvidrez, Roberto; Mang, Zachary A.; Amorim, Fabiano; Tricoli, Valmor; and de Castro Magalhaes, Flavio (2025) "Glycemic Control After Meals On People With Type 2 Diabetes and Prediabetes Following Resistance Exercise," International Journal of Exercise Science: Conference Proceedings: Vol. 14: Iss. 5, Article 107.
Available at: https://digitalcommons.wku.edu/ijesab/vol14/iss5/107