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 glesako@gmail.com to be a SCAN blogger. You can find her blogging at Sport2Fork.
