Table 2. Multilevel mixed-effects models examining associations between continuous ApP and external load variables Variable Fixed effect β (ApP) 95% CI p-value Position effect p ApP × Position p Session variance TD -0.0150 -0.062 to 0.031 0.513 > 0.05 > 0.05 176.8 HSR 0.0360 0.008 to 0.064 0.013 > 0.05 > 0.05 53.8 SPRINT 0.0068 0.001 to 0.013 0.020 > 0.05 > 0.05 3.8 NSPRINTS 0.0005 0.0001 to 0.0009 0.015 > 0.05 > 0.05 0.017 ACC ns ns > 0.05 > 0.05 > 0.05 ~0 DEC ns ns > 0.05 > 0.05 > 0.05 ~0 HMLD 0.0820 0.015 to 0.149 0.017 > 0.05 > 0.05 528.0 %MSPEED 0.0410 0.006 to 0.076 0.023 > 0.05 > 0.05 180.0 Linear mixed-effects models included repeated observations nested within players with additional session-level clustering. ApP was modelled as a continuous predictor. β = fixed-effect estimate for ApP. CI = confidence interval. ns = non-significant.