Table 2.
Characteristics of studies included in the present study.
| Authors | Intervention | Design | 1RM measurement | Gender | Intervention group | Control group | Results (superior method) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Subject | Training year | Age | Training program | Subject | Training year | age | Training program | ||||||
| Mann et al. (2010) | 6 weeks | Non-RCT | ES | Male | 12 | 2.9 ± 0.7 | 20.2 ± 1.0 | Bench press (APRE) | 11 | 2.43 ± 0.7 | 20.3± 1.6 | Bench press (Fixed) | Auto |
| Squat (APRE) | Squat (Fixed) | P = 0.05 | |||||||||||
| Weber (2015) | 8 weeks | RCT | ES | Male | 9 | 9.9 ± 3.4 | 20.4 ± 1.6 | Squat (APRE) | 9 | 10.3 ± 2.6 | 20.0 ± 1.1 | Squat (Fixed) | n. s. |
| Bench press (APRE) | Bench press (Fixed) | Auto | |||||||||||
| Right grip strength (APRE) | Right grip strength (Fixed) | n. s. | |||||||||||
| Left grip strength (APRE) | Left grip strength (Fixed) | n. s. | |||||||||||
| Mann (2011) | 6 weeks | Non-RCT | ES | Male | 32 | Division 1 college | 19.62 | Bench press (APRE) | 25 | Division 1 college | 19.13 | Bench press (Fixed) | Auto |
| player | Squat (APRE) | player | Squat (Fixed) | Auto | |||||||||
| Clean (APRE) | Clean (Fixed) | Auto | |||||||||||
| Helms et al. (2018) | 8 weeks | MPD | DT | Male | 10 | >2 | 20.9 ± 1.4 | Squat (RPE) | 11 | > 2 | 23.8 ± 4.2 | Squat (Fixed) | n. s. |
| Bench press (RPE) | Bench press (Fixed) | n. s. | |||||||||||
| Patroklos et al. (2018) | 10 weeks | MPD | DT | Male | 5 | >2 | 27 ± 6 | Squat (RPE) | 3 | > 2 | 27 ± 6 | Squat (Fixed) | n. s. |
| Bench press (RPE) | Bench press (Fixed) | n. s. | |||||||||||
| Deadlift (RPE) | Deadlift (Fixed) | n. s. | |||||||||||
| Zhihui (2020) | 8 weeks | RCT | DT | Male | 10 | 3.20 ± 0.42 | 20.10 ± 0.88 | Squat (VBT) | 10 | 3.20 ± 0.42 | 20.10 ± 0.88 | Squat (fixed) | n. s. |
| Singh (2016) | 5 weeks | RCT | ES | Male | 2 | >2 | 22.2 ± 1.3 | Bench press (VBT) | 2 | > 2 | 22.2 ± 1.3 | Bench press (Fixed) | n. s. |
| Fisher (2016) | 6 weeks | RCT | ES | Female | 8 | >1 | 20.00 ± 0.9 | Bench press (VBT) | 7 | > 1 | 20.67 ± 0.9 | Bench press (Fixed) | n. s. |
RCT, randomized controlled trails; MPD, matched-pairs design; Auto, auto-regulation method; n.s., non-significant difference; APRE, Autoregulatory Progressive Resistance Exercise; RPE, Rating of Perceived Exertion program; VBT, Velocity-Based Training; Fixed, fixed-loading programs; DT, direct test for 1RM; ES, 1RM was estimated via formula.