Hip fractures are common among elderly women and can have a devastating impact on their ability to remain independent. A significant functional decline following a hip fracture has been documented, and many patients have persistent strength and mobility deficits that impair their capacity for independent function. Such individuals are at high risk for continued supportive services, recurrent injury, and institutionalization. High-risk patients include those with deficits in skeletal muscle strength during the post-fracture period. Age-associated androgen deficiency contributes to deficits in muscle mass and strength that are common in this patient population. The role of testosterone therapy for improving deficits in muscle mass, strength, and functional capacity in the frail elderly is unclear, particularly for elderly women. There is insufficient information regarding tolerability of testosterone therapy, and the appropriate medication dosage and target serum testosterone levels necessary to induces changes in skeletal muscle mass and functional measures in elderly women with physical frailty due to muscle weakness.