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.
Muscle fibre pennation angle obtained in vastus lateralis at 50 % femur length by use of ultrasound sonography imaging, before and after the period of training. Open symbols and column show pre-training individual values and group mean value, respectively, and s.e.m. is indicated by error bars. Closed symbols and hatched column show post-training values. Pre- to post-training differences, **P < 0.001.
