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Table 5 Summary of findings from meta-analysis describing the relationship between external load metrics (levels 2 and 3) [3] and fatigue-related markers

From: Monitoring the Athlete Match Response: Can External Load Variables Predict Post-match Acute and Residual Fatigue in Soccer? A Systematic Review with Meta-analysis

PredictorsFatigue-related markersTimeLower CLUpper CLNumber of studies/correlationsEvidencenI2chi2p
HI AccMuscle damagePost0.240.020.462/1Limited45   
  G + 24H0.410.300.513/5Moderate5200.970.91
  G + 48H0.300.150.453/6Moderate7702.950.71
  G + 72H0.01  1/1Limited10   
 CMJPPOG + 24H− 0.61− 0.79− 0.422/5Strong462440.41
  G + 48H− 0.36− 0.68− 0.052/4Limited3203.710.29
 MVICG + 24H− 0.79  2/1Limited34   
  G + 48H0.74  2/1Limited34   
  G + 72H0.46  2/1Limited34   
 DOMSG + 24H− 0.05  3/1Limited20   
  G + 48H0.23− 0.270.733/2Limited34794.040.04
  G + 72H0.23− 0.110.563/2Limited34431.840.17
 CMJ performanceG + 24HNS  2/0No    
  G + 48H0.27  3/1Limited10   
  G + 72H0.09  1/1Limited10   
 Leucocytes countG + 24H0.17  1/1Limited20   
  G + 48H− 0.14  1/1Limited20   
  G + 72H− 0.02  1/1Limited20   
 PT Concentric KEG + 24H− 0.75  1/1Limited20   
  G + 48H0.52  1/1Limited20   
  G + 72H0.56  1/1Limited20   
 PT Concentric KFG + 24H− 0.84  1/1Limited20   
  G + 48H0.70  1/1Limited20   
  G + 72H0.58  1/1Limited20   
 PT Eccentric KEG + 24H− 0.64  1/1Limited20   
  G + 48H0.51  1/1Limited20   
  G + 72H0.41  1/1Limited20   
 PT Eccentric KFG + 24H− 0.89  1/1Limited20   
  G + 48H0.62  1/1Limited20   
  G + 72H0.69  1/1Limited20   
 TQRG + 24HNS  1/0No    
  G + 48HNS  1/0No    
  G + 72HNS  1/0No    
Mod to HI AccMuscle damagePost0.34  2/1Limited35   
  G + 24H0.32  2/1Limited35   
  G + 48H0.27  2/1Limited35   
 CMJ conc forceG + 48H− 0.49− 0.78− 0.171/1Limited35   
 CMJ ecc forcePost− 0.47− 0.73− 0.111/1Limited35   
 MVICG + 24H− 0.74  1/1Limited35   
  G + 48H0.80  1/1Limited35   
  G + 72H0.49  1/1Limited35   
 DOMSG + 24H− 0.04  1/1Limited35   
  G + 48H− 0.02  1/1Limited35   
  G + 72H− 0.04  1/1Limited35   
 PT Concentric KEG + 24H− 0.75  1/1Limited20   
  G + 48H0.56  1/1Limited20   
  G + 72H0.64  1/1Limited20   
 PT Concentric KFG + 24H− 0.84  1/1Limited20   
  G + 48H0.70  1/1Limited20   
  G + 72H0.57  1/1Limited20   
 PT Eccentric KEG + 24H− 0.60  1/1Limited20   
  G + 48H0.57  1/1Limited20   
  G + 72H0.47  1/1Limited20   
 PT Eccentric KFG + 24H− 0.85  1/1Limited20   
  G + 48H0.65  1/1Limited20   
  G + 72H0.68  1/1Limited20   
HI DecelMuscle damagePost0.320.130.513/2Limited45   
  G + 24H0.470.360.595/6Strong5201.260.87
  G + 48H0.370.180.556/7Moderate6704.80.44
  G + 72H0.00  1/1Limited10   
 CMJPPOG + 24H− 0.59− 0.780.401/4Limited3202.490.48
  G + 48H− 0.11− 0.420.191/4Limited3202.630.45
 CMJ performanceG + 24HNS  1/0No    
  G + 48H0.15  2/1Limited10   
  G + 72H0.16  1/1Limited10   
 MVICG + 24H− 0.78  2/1Limited34   
  G + 48H0.70  2/1Limited34   
  G + 72H0.46  2/1Limited34   
 DOMSG + 24H− 0.11  2/1Limited34   
  G + 48H0.08  2/1Limited34   
 PT Concentric KEG + 24H− 0.82  1/1Limited20   
  G + 48H0.43  1/1Limited20   
  G + 72H0.59  1/1Limited20   
 PT Concentric KFG + 24H− 0.84  1/1Limited20   
  G + 48H0.70  1/1Limited20   
  G + 72H0.58  1/1Limited20   
 PT Eccentric KEG + 24H− 0.55  1/1Limited20   
  G + 48H0.53  1/1Limited20   
  G + 72H0.53  1/1Limited20   
 PT Eccentric KFG + 24H− 0.82  1/1Limited20   
  G + 48H0.62  1/1Limited20   
  G + 72H0.65  1/1Limited20   
 Leucocytes countG + 24H0.22  1/1Limited20   
  G + 48H0.14  1/1Limited20   
  G + 72H− 0.04  1/1Limited20   
 TQRG + 24HNS  1/0No    
  G + 48HNS  1/0No    
  G + 72HNS  1/0No    
Mod to HI DecelMuscle damagePost0.14  2/1Limited35   
  G + 24H0.03  2/1Limited35   
  G + 48H0.25  2/2Limited67   
 MVICG + 24H− 0.80  1/1Limited35   
  G + 48H0.76  1/1Limited35   
  G + 72H0.39  1/1Limited35   
 CMJ conc forceG + 48H− 0.49− 0.78− 0.171/1Limited35   
 CMJ ecc forcePost− 0.47− 0.73− 0.111/1Limited35   
 DOMSG + 24H− 0.14  1/1Limited35   
  G + 48H0.06  1/1Limited35   
  G + 72H0.10  1/1Limited35   
 PT Concentric KEG + 24H− 0.82  1/1Limited20   
  G + 48H0.40  1/1Limited20   
  G + 72H0.59  1/1Limited20   
 PT Concentric KFG + 24H− 0.83  1/1Limited20   
  G + 48H0.64  1/1Limited20   
  G + 72H0.57  1/1Limited20   
 PT Eccentric KEG + 24H− 0.54  1/1Limited20   
  G + 48H0.53  1/1Limited20   
  G + 72H0.42  1/1Limited20   
 PT Eccentric KFG + 24H− 0.84  1/1Limited20   
  G + 48H0.57  1/1Limited20   
  G + 72H0.71  1/1Limited20   
High ImpactMuscle damageG + 24H0.19− 0.140.512/4Limited4703.170.37
  G + 48H0.15− 0.220.532/4Limited4704.170.24
 CMJPPOG + 24H− 0.32− 0.61− 0.032/4Limited5055.600.23
  G + 48H0.04− 0.300.381/4Limited3203.250.36
  1. : pooled correlation from Hunter and Schmidt random-effects method, CL: confidence limit, N: number of players, TD: total distance, KE: knee extension, KF: knee flexion, CMJ: countermovement jump, CMJPPO: countermovement jump peak power, PT: peak torque, DOMS: delayed onset muscle soreness, TQR: total quality of recovery, BAM+: brief assessment of the mood, HI: high intensity, Mod: moderate, MVIC: maximal voluntary isometric contraction, conc: concentric, ecc: eccentric, Acc: acceleration, Decel: deceleration, No: no evidence, Conf: conflicted