Protein supplementation augments the adaptive response of skeletal muscle to resistance-type exercise training: a meta-analysis.
Naomi M Cermak; Peter T Res; Lisette C P G M de Groot; Wim H M Saris; Luc J C van Loon
The American journal of clinical nutrition, 2012
SR / meta-analysisClosed (all rights reserved)Data current as of 25 Oct 2026
Metadata only. The abstract is not shown here; read it at the publisher or on PubMed.
Abstract
The abstract is not shown here because of the article's licence. Read it on PubMed.
Where this study is used
- Higher vs lower daily protein intake during resistance training: Lower-body strength (Adults with resistance training) — Moderate. Counted in the grade.
Extracted values
AI-assisted extraction: each number comes with the sentence it was read from.
- Studies pooled
- 22
- Participants pooled
- 680
| Field | Value | Source sentence |
|---|---|---|
| Review question | The objective of the study was to define the efficacy of protein supplementation to augment the adaptive response of the skeletal muscle to prolonged resistance-type exercise training in younger and older populations. | Show quote for Review questionThe objective of the study was to define the efficacy of protein supplementation to augment the adaptive response of the skeletal muscle to prolonged resistance-type exercise training in younger and older populations. Located at |
| Population | younger and older populations | Show quote for Populationyounger and older populations Located at |
| Intervention · Agent | dietary protein supplementation | Show quote for Intervention · Agentthe effect of dietary protein supplementation during prolonged (>6 wk) resistance-type exercise training Located at |
| Intervention · Duration | >6 wk | Show quote for Intervention · Duration |
FFM
WMD 0.69 kg (95% CI 0.47 to 0.91) · P < 0.00001
| Field | Value | Source sentence |
|---|---|---|
| Outcome name | FFM | Show quote for Outcome nameFFM (weighted mean difference: 0.69 kg; 95% CI: 0.47, 0.91 kg; P < 0.00001) Located at |
| Effect measure | WMD | Show quote for Effect measureweighted mean difference: 0.69 kg Located at |
| Effect measure as written | weighted mean difference | Show quote for Effect measure as writtenweighted mean difference: 0.69 kg Located at |
| Point estimate | 0.69 | Show quote for Point estimateweighted mean difference: 0.69 kg Located at |
1-RM leg press strength
WMD 13.5 kg (95% CI 6.4 to 20.7) · P < 0.005
| Field | Value | Source sentence |
|---|---|---|
| Outcome name | 1-RM leg press strength | Show quote for Outcome name1-RM leg press strength (weighted mean difference: 13.5 kg; 95% CI: 6.4, 20.7 kg; P < 0.005) Located at |
| Effect measure | WMD | Show quote for Effect measureweighted mean difference: 13.5 kg Located at |
| Effect measure as written | weighted mean difference | Show quote for Effect measure as writtenweighted mean difference: 13.5 kg Located at |
| Point estimate | 13.5 | Show quote for Point estimateweighted mean difference: 13.5 kg Located at |
How these values were extracted
Model claude-haiku-5-5+claude-sonnet-5-5, run on 26 Oct 2026. 2 passes, 15% agreement between passes. 0 fields checked by a person.