Is radial extracorporeal shock wave therapy combined with a specific rehabilitation program (rESWT + RP) more effective than sham-rESWT + RP for acute hamstring muscle complex injury type 3b in athletes? Study protocol for a prospective, randomized, double-blind, sham-controlled single centre trial

Table 5 Sample size in the proposed RCT on rESWT + RP for acute HMC injury type 3b, accounting for a two-sided confidence interval of 95% and a power of 0.8. The percentage of patients with treatment success when treated with rESWT + RP was set at 75 based on own experience (unpublished data)

Percent of patients with treatment success when treated with sham-rESWT + RP (%)	Sample size of both groups (rESWT + RP, sham-rESWT + RP) according to…
	[49]	[50]	[50] with continuity correction
99.9	28	27	35
90	99	98	111
80	1095	1094	1134
70	1221	1220	1259
60	154	152	165
50	59	58	66
40	32	31	36
30	20	19	23
25^a	16	15	19
20	13	12	16
10	10	8	11

ISSN: 1749-799X