Muscle weakness is of particular concern after total knee
arthroplasty (TKA) and, as such, interventions to improve skeletal
muscle strength in patients with TKA are highly recommended.In accordance, a great number of studies
have investigated the efficacy of strength training in this
population.Since the
decrease in the quadriceps femoris (QF) muscle strength and
limitations in functional activities are greater during the early
postoperative period, thus far studies have mostly focus on this
period.Few studies have investigated the effectiveness
of rehabilitation programs after the first postoperative year in TKA