Creatine monohydrate supplementation for recovery from muscle disuse: Timing matters.
Level 5 - mechanism / opinion, no new human data
Narrative review without systematic search or meta-analytic pooling
PubMed 42539704 · doi:10.1016/j.smhs.2026.05.006
What was done
This narrative mini-review evaluated human evidence on creatine monohydrate supplementation across muscle disuse and recovery contexts, including immobilization, reloading, orthopedic and medical rehabilitation (e.g., knee osteoarthritis, Parkinson's disease, inflammatory myopathies, total knee arthroplasty, early stroke care, chronic obstructive pulmonary disease [COPD], and peripheral arterial disease [PAD]), and exercise-induced muscle damage models. The review focused on the timing of supplementation relative to unloading versus active rehabilitation phases.
What was found
The abstract reports no quantitative values or effect sizes. It qualitatively describes the following: - During strict immobilization/unloading: Creatine increased intramuscular creatine availability but did not consistently preserve muscle cross-sectional area (CSA) or strength in controlled lower-limb studies. - During reloading/rehabilitation: Creatine accelerated recovery of quadriceps CSA and knee extensor power during resistance-based rehabilitation after immobilization, and individual trials showed added benefit when paired with strengthening in knee osteoarthritis, Parkinson's disease, and inflammatory myopathies. - Null or mixed findings: Reported for total knee arthroplasty, early inpatient stroke care, COPD, PAD, and exercise-induced muscle damage.
Why it matters
Creatine does not reliably prevent muscle loss as a stand-alone countermeasure during strict disuse, but it appears useful as an adjunct to progressive resistance exercise during active reloading.
Limits
As a narrative review, it lacks systematic search criteria and quantitative meta-analytic pooling. The abstract reports no sample sizes or study counts. Findings are null or inconsistent across multiple clinical populations, and protocols vary widely.