Related Experiment Video
Updated: Oct 17, 2026
Fu's Subcutaneous Needling for Knee Osteoarthritis Pain
Published on: March 24, 2023
Low-frequency electric muscle stimulation combined with physical therapy after total hip arthroplasty for hip
Vincent Gremeaux1, Julien Renault, Laurent Pardon
1Pôle Rééducation-Réadaptation, Centre Hospitalier Universitaire de Dijon, INSERM, U887, Dijon, France. vincent.gremeaux@chu-dijon.fr
Objective:
To assess the effects of low-frequency electric muscle stimulation associated with usual physiotherapy on functional outcome after total hip arthroplasty (THA) for hip osteoarthritis (OA) in elderly subjects.
Design:
Randomized controlled trial; pre- and posttreatment measurements.
Setting:
Hospital rehabilitation department.
Participants:
Subjects (N=29) referred to the rehabilitation department after THA for hip OA.
Interventions:
The intervention group (n=16; 78+/-8 y) received simultaneous low-frequency electric muscle stimulation of bilateral quadriceps and calf muscles (highest tolerated intensity, 1h session, 5 d/wk, for 5 weeks) associated with conventional physical therapy including resistance training. The control group (n=13; 76+/-10 y) received conventional physical therapy alone (25 sessions).
Main Outcome Measures:
Maximal isometric strength of knee extensors, FIM instrument, before and after; a six-minute walk test and a 200 m fast walk test, after; length of stay (LOS).
Results:
Low-frequency electric muscle stimulation was well tolerated. It resulted in a greater improvement in strength of knee extensors on the operated side (77% vs 23%; P<.01), leading to a better balance of muscle strength between the operated and nonoperated limb. The low-frequency electric muscle stimulation group also showed a greater improvement in FIM scores, though improvements in the walk tests were similar for the 2 groups, as was LOS.
Conclusions:
Low-frequency electric muscle stimulation is a safe, well-tolerated therapy after THA for hip OA. It improves knee extensor strength, which is one of the factors leading to greater functional independence after THA.
