Effects of Resistance Exercise and Protein Ingestion on Blood Sugar Control
Author Information
Author(s): Breen Leigh, Philp Andrew, Shaw Christopher S., Jeukendrup Asker E., Baar Keith, Tipton Kevin D.
Primary Institution: School of Sport and Exercise Sciences, University of Birmingham, Birmingham, United Kingdom
Hypothesis
The beneficial effects of resistance exercise on post-prandial blood glucose homeostasis at 24 hours post-exercise would be explained by contraction-dependent alteration in rates of glucose disposal.
Conclusion
Resistance exercise improves glycemic control and insulin sensitivity, but co-ingesting protein during a high-glucose load does not enhance this effect at 24 hours post-exercise in healthy individuals.
Supporting Evidence
- Muscle glycogen was lower in the exercise groups immediately post-exercise.
- Plasma glucose AUC was lower for exercise groups compared to control.
- Insulin response was lower in exercise groups compared to exercise plus protein.
Takeaway
Doing weightlifting helps your body use sugar better, but eating protein with sugar afterwards doesn't make it work even better.
Methodology
Twenty-four healthy males were divided into three groups: control, exercise only, and exercise plus protein, with muscle biopsies and blood samples taken at various times.
Limitations
The small sample size may limit the ability to detect subtle differences in the insulin signaling pathway.
Participant Demographics
Twenty-four untrained, recreationally active, healthy males.
Statistical Information
P-Value
0.02
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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