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.
Paraspinal muscle force with the increase in bag weight (as a percentage of body weight (BW)) in the (A) backpack model, (B) shoulder bag model, and (C) handbag model. The assessed muscles were the psoas major muscle (PS), iliocostalis muscle (IL), quadratus lumborum muscle (QL), latissimus dorsi muscle (LD), longissimus muscle (LG), and multifidus muscle (MF)
