Table 2.
Strength outcomes.
| Author | Measurement | Intra-Groups | Between-Groups |
|---|---|---|---|
| Ferraz et al. [25] | 1MR leg press (% improvement) | ||
| BFR: | 26%; ES = 1.01 | BFR vs. LI -RT: 18% BFR vs. HI-RT: −7% |
|
| HI-RT: | 33%; ES = 0.82 | HI-RT vs. LI-RT: 21% | |
| LI-RT: | 8%; ES = 0.23 | ||
| 1MR knee extension (% improvement) | |||
| BFR: | 23%; ES = 0.86 | BFR vs. LI -RT: 16% BFR vs. HI-RT: 1% |
|
| HI-RT: | 22%; ES = 0.83 | HI-RT vs. LI-RT: 15% | |
| LI-RT: 7% | 7%; ES = 0.21 | ||
| Segal et al. Women [28] | Extensor isokinetic strength (Nm/kg) pre-post treatment changes |
||
| BFR: | 0.07 ± 0.03 | 0.57 ± 0.6 | |
| CG: | −0.5 ± 0.3 | ||
| Isotonic. 1MR leg press kg. pre-post treatment changes | |||
| BFR: | 0.4 ± 0.3 | 0.2 ± 0.6 | |
| CG: | 0.2 ± 0.3 | ||
| Segal et al. Men [27] | Extensor isokinetic (% improvement Nm/kg) | ||
| BFR: | −0.1 ± 3.3 (0.4 ± 2.4%) | −0.8 ± 0.3 (−6.3 ± 0.1%) | |
| CG: | 7.0 ± 3.0 (6.7 ± 2.3%) | ||
| Isotonic. 1MR leg press (% improvement kg) | |||
| BFR: | 11.3 ± 14.0 (3.1 ± 0.9%) | −1.7 ± −2.8 (1.6 ± −0.4) | |
| CG: | 13 ± 16.8 (4.7 ± 1.3%) | ||
| Curran et al. [30] | Extensor isokinetic. Nm (pre-surgery to post-intervention changes) | ||
| BFR: | −12.4 ± 19.2 | 2.6 ± −15.2 | |
| CG: | −15.0 ± 34.4 | ||
| MVIC. Nm (pre-surgery to post-intervention changes) | |||
| BFR: | −16.3 ± 3.1 | 4.5 ± −35.2 | |
| CG: | −11.8 ± 38.3 | ||
| 1MR leg press. kg (pre-intervention a post-intervention) | |||
| BFR: | 2.44 ± 1.21 | 0.34 ± 0.26 | |
| CG: | 2.10 ± 0.95 | ||
| Ohta et al. [32] | Extensors (concentric 60° and 180°, isometric at 180°) (% post) | ||
| BFR: | C60° = 76 ± 16%, C180° = 77 ± 13% IS 60° = 84 ± 19 | C60°: 21 ± −1% C180°: 12 ± 0% IS60°: 21 ± 0% |
|
| CG: | C60° = 55 ± 17%, C180° = 65 ± 13% IS 60° = 63 ± 19% | ||
| Bryk et al. [29] | MVIC. kg Post | ||
| BFR: | 16.8 ± 10.3 (10.6, 22.9) | 7.4 (0.9, 13.9) | |
| CG: | 9.4 ± 8.3 (1.3, 17.5) | ||
| Harper et al. [26] | Isokinetic. Nm (mean change) 95% CI |
||
| 6-weeks: 9.96 (5.76, 14.16) 12-weeks: −1.87 (−10.96, 7.23) |
Abbreviations: BFR, blood flow restriction; 1MR, 1 maximum repetition; CG, control group; kg, kilograms; Nm, Newton meter; HI-RT, high-intensity resistance training; LI-RT, low-intensity resistance training; MVIC, maximum voluntary isometric contraction; ES, effect sizes; C, concentric; IS, isometric.