A recent study published in the Journal of Applied Physiology examines the role of combining whey protein, resistance training, and insulin resistance (HOMA-IR) in obese individuals. The study looked at the role of timed-ingestion of supplemental protein (20 g servings, 3 times per day) added to the diet of overweight/obese adults. They were randomized to receive whey protein, protein and resistance training, or whey protein and a multi-mode exercise program (PRISE, Protein, Resistance, Interval Training, Stretching, Endurance training).
Body composition, visceral adipose tissue, lipids, adipokines* and insulin sensitivity were examined.
The researchers examined obese individuals over a 16 week period. Results are as follows:
· The PRISE exercisers lost the greatest amount of body weight 2.6% versus the protein and resistance training group and fat mass, 6.6% versus the protein/resistance training group.
· There was a 14% decrease in fasting glucose along with improvements in insulin sensitivity (HOMA-IR).
Researchers found “evidence to support exercise training and timed-ingestion of whey protein added to the habitual diet of free-living overweight/obese adults, independent of caloric restriction, on total and regional body fat distribution, insulin resistance, and adipokines” (Arciero, et al, 2014).
*Adipokines (or adipocytokines) are cytokines (cells that signal proteins) that are secreted by adipose tissue; some research suggests they can also be added to adipose-derived hormones.
Gina (Lesako) Volsko is a Columbus, Ohio based RD and the SCAN blog coordinator. Contact her at firstname.lastname@example.org to be a SCAN blogger. You can find her blogging at Sport2Fork.