Protein Supplementation & High-Intensity Resistance Training, Any Effect?

Research Paper Title

Protein Supplementation to Augment the Effects of High Intensity Resistance Training in Untrained Middle-Aged Males: The Randomized Controlled PUSH Trial.

Background

High intensity (resistance exercise) training (HIT) defined as a “single set resistance exercise to muscular failure” is an efficient exercise method that allows people with low time budgets to realise an adequate training stimulus.

Although there is an ongoing discussion, recent meta-analysis suggests the significant superiority of multiple set (MST) methods for body composition and strength parameters.

The aim of this study is to determine whether additional protein supplementation may increase the effect of a HIT-protocol on body composition and strength to an equal MST-level.

Methods

One hundred and twenty untrained males 30–50 years old were randomly allocated to three groups:

  • HIT;
  • HIT and protein supplementation (HIT&P); and
  • Waiting-control (CG) and (after cross-over) high volume/high-intensity-training (HVHIT).

HIT was defined as “single set to failure protocol” while HVHIT consistently applied two equal sets. Protein supplementation provided an overall intake of 1.5–1.7 g/kg/d/body mass. Primary study endpoint was lean body mass (LBM).

Result

LBM significantly improved in all exercise groups (p ≤ 0.043); however only HIT&P and HVHIT differ significantly from control (p ≤ 0.002). HIT diverges significantly from HIT&P (p = 0.017) and nonsignificantly from HVHIT (p = 0.059), while no differences were observed for HIT&P versus HVHIT (p = 0.691).

Conclusions

In conclusion, moderate to high protein supplementation significantly increases the effects of a HIT-protocol on LBM in middle-aged untrained males.

Reference

Wittke, A., von Stengel, S., Hettchen, M., Fröhlich, M., Giessing, J., Lell, M., Scharf, M., Bebenek, M., Kohl, M. & Kemmler, W. (2017) Protein Supplementation to Augment the Effects of High Intensity Resistance Training in Untrained Middle-Aged Males: The Randomized Controlled PUSH Trial. BioMed Research International. 2017: 3619398. Published online 2017 Jun 1. doi: 10.1155/2017/3619398.

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