The aims of this study were to evaluate the effects of
low-level laser therapy (
LLLT) and to compare these with the effects of
brace or ultrasound (US) treatment in
tennis elbow. The study design used was a prospective and randomized, controlled, single-blind trial. Fifty-eight outpatients with
lateral epicondylitis (9 men, 49 women) were included in the trial. The patients were divided into three groups: 1)
brace group-
brace plus exercise, 2) ultrasound group-US plus exercise, and 3)
laser group-
LLLT plus exercise. Patients in the
brace group used a lateral counterforce
brace for three weeks, US plus hot pack in the ultrasound group, and
laser plus hot pack in the
LLLT group. In addition, all patients were given progressive stretching and strengthening exercise programs. Grip strength and
pain severity were evaluated with visual analog scale (VAS) at baseline, at the second week of treatment, and at the sixth week of treatment. VAS improved significantly in all groups after the treatment and in the ultrasound and
laser groups at the sixth week (p<0.05). Grip strength of the affected hand increased only in the
laser group
after treatment, but was not changed at the sixth week. There were no significant differences between the groups on VAS and grip strength at baseline and at follow-up assessments. The results show that, in patients with
lateral epicondylitis, a
brace has a shorter beneficial effect than US and
laser therapy in reducing
pain, and that
laser therapy is more effective than the
brace and US treatment in improving grip strength.