Muscular strength refers to the power and ability of your muscles to exert force against resistance. It measures how strong and capable your muscles are. Full definition
Increased muscular strength increases the stability of your joints. (traineatgain.com)
One recent study, however, found significant effects in muscular strength (one repetition maximum) and cycle performance (10 - second sprint) following three weeks of testosterone administration. (scientificamerican.com)
While it was originally created as a form of rehabilitation, it's been also widely used for improving muscular strength and mobility of specific muscle groups in terms of athletic training. (fitnessandpower.com)