Whey protein plus bicarbonate supplement has little effects on structural atrophy and proteolysis marker immunopatterns in skeletal muscle disuse during 21 days of bed rest.

What Was Tested

Researchers studied Bed Rest in this randomized controlled trial publication.

To investigate the effect of whey protein plus potassium bicarbonate supplement on disused skeletal muscle structure and proteolysis after bed rest (BR).

Who Took Part

By PubMed's age tags, the people studied were young adults and adults, men only.

Soleus (SOL) and vastus lateralis (VL) biopsies were sampled from ten (n=10) healthy male subjects (aged 31±6 years) who did BR once with and once without protein supplement as a dietary countermeasure (cross-over study design).

How the Study Was Run

The design is described as randomized and crossover.

Random assignment meant chance, not the researchers, decided who got Bed Rest and who got the comparison, which limits bias.

Each person switched between Bed Rest and the comparison at some point, usually with a gap in between.

The structural changes (myofibre size and type distribution) were analysed by histological sections, and muscle protein breakdown indirectly via the proteolysis markers, calpain 1 and 3, calpastatin, MuRF1 and 2, both in muscle homogenates and by immunohistochemistry.

What Was Measured

PubMed files the paper under topics including Bed Rest, Bicarbonates, Dietary Supplements, Immunohistochemistry, Milk Proteins, Muscular Atrophy and Potassium Compounds.

What This Means in Plain Language

The paper is a randomized and crossover study of Bed Rest.

Results are reported in around 5 sentences of the abstract; we leave them to the paper itself rather than summarise them.

The publication is from 2014 (Journal of musculoskeletal & neuronal interactions), a journal based in Greece.

More context: all human trials.