Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Subgroup analyses for creatine supplementation combined with resistance training on upper-body muscle strength compared with placebo supplementation combined with resistance training. MD, mean difference (kg); P1, p-value for the within-subgroup comparison (i.e., pre–post-intervention changes within each subgroup); P2, p-value for the between-subgroup comparison (i.e., comparison of the pre–post-intervention changes between subgroups); NA, Not Available.
