Comparison of the Effect of Sensory-Level and Conventional Motor-Level Neuromuscular Electrical Stimulations on Quadriceps Strength After Total Knee Arthroplasty: A Prospective Randomized Single-Blind Trial

Autor: Koki Ikuno, Yosuke Yoshida, Koji Shomoto
Rok vydání: 2017
Předmět:
Zdroj: Archives of Physical Medicine and Rehabilitation. 98:2364-2370
ISSN: 0003-9993
DOI: 10.1016/j.apmr.2017.05.005
Popis: Objective To compare sensory-level neuromuscular electrical stimulation (NMES) and conventional motor-level NMES in patients after total knee arthroplasty. Design Prospective randomized single-blind trial. Setting Hospital total arthroplasty center: inpatients. Participants Patients with osteoarthritis (N=66; mean age, 73.5±6.3y; 85% women) were randomized to receive either sensory-level NMES applied to the quadriceps (the sensory-level NMES group), motor-level NMES (the motor-level NMES group), or no stimulation (the control group) in addition to a standard rehabilitation program. Interventions Each type of NMES was applied in 45-minute sessions, 5d/wk, for 2 weeks. Main Outcome Measures Data for the quadriceps maximum voluntary isometric contraction, the leg skeletal muscle mass determined using multiple-frequency bioelectrical impedance analysis, the timed Up and Go test, the 2-minute walk test, the visual analog scale, and the range of motion of the knee were measured preoperatively and at 2 and 4 weeks after total knee arthroplasty. Results The motor-level NMES ( P =.001) and sensory-level NMES ( P =.028) groups achieved better maximum voluntary isometric contraction results than did the control group. The motor-level NMES ( P =.003) and sensory-level NMES ( P =.046) groups achieved better 2-minute walk test results than did the control group. Some patients in the motor-level NMES group dropped out of the experiment because of discomfort. Conclusions Motor-level NMES significantly improved muscle strength and functional performance more than did the standard program alone. Motor-level NMES was uncomfortable for some patients. Sensory-level NMES was comfortable and improved muscle strength and functional performance more than did the standard program alone.
Databáze: OpenAIRE