Reported VISA-P test–retest reliability studies
| Article | VISA-P version | Sample | Mean (SD) VISA-P | Retest period | Coefficient | Interpretable values |
|---|---|---|---|---|---|---|
| Visentini et al5 | English | 54 ‘knees’ healthy students, athletes and patients with PT. Mean age 28 (SD 8) | Same day | r=0.99 | Estimated as SEM=1.4 | |
| 14 knees with PT | 55 (12) | MDC68=2 | ||||
| 26 healthy knees | 95 (8) | MDC95=4 | ||||
| Frohm et al27 | Swedish | 51 | 4–7 days | ICC=0.97 | Estimated as SEM=3.5 | |
| 17 healthy students (47% male) | 83 (12) | |||||
| 17 basketballers (all male) | 79 (23) | MDC68=5 | ||||
| 17 patients with PT (all male) | 47 (20) | MDC95=10 | ||||
| Mean age 22–26 (SD 3–6) | ||||||
| Zwerver et al28 | Dutch | 89 | 75 (24) | 2.5 weeks | ICC=0.74 | Estimated as |
| 18 healthy students | 95 (9) | SEM=12 | ||||
| 15 volleyball players | 89 (11) | MDC68=17 | ||||
| 14 patients with PT | 58 (19) | MDC95=34.6 | ||||
| 6 surgical patients with PT | 56 (21) | |||||
| 17 patients with other knee injuries | 56 (21) | |||||
| 19 patients with non-knee symptoms | 77 (24) | |||||
| Mean age n=71 who completed twice 19.2 (0.9) 25% male | ||||||
| Lohrer and Nauck et al29 | German | 80 | 1 week | |||
| 23 with PT (mean age 35, SD 13) | 62 (13) | ICC2,1=0.878 | SEM=4.5 MDC95=12.6 | |||
| 57 healthy active (mean age 30, SD 8) | 95 (6) | ICC2,1=0.872 | SEM=2.2 MDC95=6.2 | |||
| Hernandez-Sanchez, et al16 | Spanish | 150 | 7–10 days | ICC2,1=0.994 (95%CI 0.992 to 0.996) | Estimated as SEM=1 | |
| 40 healthy students | 95.4 (2.5) | MDC68=1.4 | ||||
| 40 at risk athletes | 90.0 (9.7) | MDC95=2.8 | ||||
| 40 athletes with PT | 54.8 (13.2) | |||||
| 30 patients with other knee injuries | 56.4 (11.3) | |||||
| 86% male | ||||||
| Mean age 21.3–24.5 (SD 3.1–5.1) | ||||||
| Hernandez-Sanchez, et al6 | Spanish | 90 athletes with PT | 50.1 (18.4) | 4–7 days | Rho=0.852 | SEM=4.0 |
| Mean age 25.9 (SD 5.4) | MDC95=11.1 |
ICC, intraclass correlation coefficient; MDC, minimum detectable change; r, Pearson's r; PT, patella tendinopathy; SEM, standard error of measurement; Rho, Spearman rho; VISA-P, Victorian Institute of Sports Assessment questionnaire for patellar tendinopathy