Table 6 GRADE analyses
Studies and PSS | Risk of bias in studies | Inconsistency | Imprecision | Certainty of evidence | |
|---|---|---|---|---|---|
Sport-specific performance | |||||
Pre-PHV participants: PJT versus controls | 3, n = 108 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
Post-PHV participants: PJT versus controls | 3, n = 112 | Some concerns | Low | Moderate effect favouring PJT | ⊕ ⊕ , Low |
PJT Pre-PHV versus PJT Post-PHV participants | 3, n = 110 | Some concerns | Low | No clear direction of effects | ⊕ , Very low |
Horizontal jump distance | |||||
Pre-PHV participants: PJT versus controls | 4, n = 166 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
Post-PHV participants: PJT versus controls | 4, n = 180 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
PJT Pre-PHV versus PJT Post-PHV participants | 4, n = 174 | Some concerns | Low | No clear direction of effects | ⊕ , Very low |
Maximal dynamic strength | |||||
Pre-PHV participants: PJT versus controls | 4, n = 168 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
Post-PHV participants: PJT versus controls | 4, n = 173 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
PJT Pre-PHV versus PJT Post-PHV participants | 4, n = 171 | Some concerns | Low | No clear direction of effects | ⊕ , Very low |
Change of direction speed time | |||||
Pre-PHV participants: PJT versus controls | 4, n = 132 | Some concerns | Moderate | No clear direction of effects | ⊕ , Very low |
Post-PHV participants: PJT versus controls | 4, n = 152 | Some concerns | Moderate | No clear direction of effects | ⊕ , Very low |
PJT Pre-PHV versus PJT Post-PHV participants | 4, n = 146 | Some concerns | Low | Small effect favouring pre-PHV | ⊕ ⊕ , Low |
Linear sprinting speed time | |||||
Pre-PHV participants: PJT versus controls | 6, n = 171 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
Post-PHV participants: PJT versus controls | 6, n = 162 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
PJT Pre-PHV versus PJT Post-PHV participants | 6, n = 164 | Some concerns | Low | No clear direction of effects | ⊕ , Very low |
Squat jump height | |||||
Pre-PHV participants: PJT versus controls | 4, n = 119 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
Post-PHV participants: PJT versus controls | 4, n = 110 | Some concerns | Low | No clear direction of effects | ⊕ , Very low |
PJT Pre-PHV versus PJT Post-PHV participants | 4, n = 109 | Some concerns | Low | No clear direction of effects | ⊕ , Very low |
Reactive strength index | |||||
Pre-PHV participants: PJT versus controls | 7, n = 252 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
Post-PHV participants: PJT versus controls | 7, n = 238 | Some concerns | Low | Small effect favouring PJT | ⊕ ⊕ , Low |
PJT Pre-PHV versus PJT Post-PHV participants | 7, n = 246 | Some concerns | Low | No clear direction of effects | ⊕ , Very low |
Countermovement jump height | |||||
Pre-PHV participants: PJT versus controls | 7, n = 195 | Some concerns | Moderate | No clear direction of effects | ⊕ , Very low |
Post-PHV participants: PJT versus controls | 7, n = 192 | Some concerns | Moderate | No clear direction of effects | ⊕ , Very low |
PJT Pre-PHV versus PJT Post-PHV participants | 7, n = 189 | Some concerns | Low | No clear direction of effects | ⊕ , Very low |