Muscle+Strength+by+Age

Age and gender comparisons of muscle strength in 654 women and men aged 20–93 yr: http://jap.physiology.org/cgi/reprint/83/5/1581
 * contains data concerning torque at the knee

Changes in muscle strength, relaxation rate and fatiguability during the human menstrual cycle: http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1158967&blobtype=pdf
 * contains data for handgrip strength and quadriceps