Abstract:Objective: To observe the effect of extracorporeal shock wave on gastrocnemius injury caused by posterior calf pain. Methods 68 patients with gastrocnemius injury were divided into shock wave group and control group by random number table method. Both groups of patients were treated with non-steroidal anti-inflammatory analgesics, and the shock wave group was given extracorporeal shock waves. Visualanalogue scale (VAS), pressure pain threshold (PPT) evaluation and quality of life assessmen were used before treatment, at 1 week, 4 weeks and 12 weeks. Results Before treatment, the VAS score [control group (5.03 ± 1.14) points, treatment group (5.41 ± 1.08) points], PPT evaluation [control group 1.79 ± 0.34, treatment group 1.71 ± 0.25], and QOL-SF36 score [control group (55.03 (± 6.07) points, (54.12 ± 6.59) points in the treatment group]. There was no significant difference between the groups (P> O.05). The pain VAS, PPT, and QOL-SF36 scale scores of the two groups after treatment were all higher than those before treatment. Improvement, at 1 week of treatment, patients in the shock wave group had pain VAS scores [2.53 ± 0.83 points], PPT evaluations [2.82 ± 0.86], and QOL-SF36 scores [67.44 ± 6.63 points] and the control group had statistically significant differences (P