Introduction. The aim of the study was to evaluate the clinical effectiveness of neuromuscular electrical stimulation (NMES) ARPwave in patients after knee joint injury. Methods. The study involved 96 participants (66 men and 30 women). The ARPwave treatment consisted of 10 sessions of NMES combined with isometric and dynamic exercises and high protein diet. The girth of the left and right thigh was measured with an anthropometric measuring tape before and after the ARPwave therapy. Statistical analysis was carried out with the Statistca 12.5 software package.Results. The differences observed between the results obtained for both limbs were statistically significant (p < 0.05) and did not depend on the type of injury or the applied rehabilitation (p > 0.05). However, significant differences in thigh girth were noted between sexes in the first and second measurement. The changes did not correlate with the sexes and were similar for both groups. Conclusions.The results of the second measurement were significantly higher for all the variables. The mean changes were positive, which may indicate improvement of the patients' condition.

A rehabilitative program for patients who lose strength and muscle mass along with the ability to perform intensive exercises is lacking. We developed a 3-week training program based on neuromuscular electrical stimulation (NMES) using a RSQ1 device (modulated current resulting from the overlapping of two-component currents) for RSQ1 electrostimulation to improve strength parameters of the quadricep femoris muscles and compare its effectiveness to isometric training. Nineteen university students were randomly divided into the NMES group (10 sessions) and the control group who trained. We measured the circumference of the thigh, as well as peak torques of the flexor and extensor muscles before and after the start and after the end of the training program. Both tested training programs gave similar results. Differences between measured parameters were not significant except for differences in the peak torques of the knee flexors (9.9% for left limb; p = 0.2135 vs. 7.8% for rift limb; p = 0.2135) and the circumference of the left thigh—2% for both (left p = 0.5839 and right p = 0.1088). Comparable results of the tested training programs suggest that NMES is a good alternative for people who cannot perform exercises, but want to maintain or improve their physical fitness.