Acute/chronic | Treatment modes | Tendon affected | First author (year) | Pain scale | Scale range | Isometric group pain score | Control group pain score | Mean treatment effect for pain (2–1) – (4–3) (95% CI) | P value <0.05 | ||
Baseline (1) | Longest follow-up (2) | Baseline (3) | Longest follow-up (4) | ||||||||
Acute | Combined isometric exercise/ice therapy versus ice therapy | Rotator cuff | Parle (2017)32 | VAS | 0–10 | 4.8 | 3.7 | 5.5 | 4.5 | −0.1 (N/A) | No |
Isometric exercise versus ice | Rotator cuff | Parle (2017)32 | VAS | 0–10 | 6.3 | 4.5 | 5.5 | 4.5 | −0.8 (N/A) | No | |
Dupuis (2018)31 | BPI | 0–10 | 3.2 | 1.6 | 2.7 | 1.2 | −0.1 (−1.2 to 1) | No | |||
Chronic | Isometric versus isotonic exercise | Patellar | van Ark (2016)36 | NRS | 0–10 | 6.3 | 4 | 5.5 | 2 | −0.5* (−2.6 to 1.6) | No |
Greater trochanteric pain syndrome | Clifford (2019)17 | NRS | 0–10 | 5.9 | 3.9 | 5.9 | 3.2 | +0.7 (−0.7 to 1.7) | No | ||
Chronic | Combined isometric/isotonic exercise versus isotonic exercise | Wrist extensors | Stasinopoulos (2017)33 | VAS | 0–10 | 6.9 | 1.6 | 6.9 | 2.9 | −1.3 (−0.8 to −1.9) | Yes |
CIs have been calculated (see Statistical analysis section).
*Values at baseline and follow-up are median and not mean; therefore, the 0.5 value (also median) reported by the authors cannot be obtained from the calculation.
BPI, Brief Pain Inventory; N/A, not applicable; NRS, Numeric Rating Scale; VAS, Visual Analogue Scale.