Table 3 Omnibus F tests in linear mixed models for training effects on autonomic and immune stress responses.

Removing the covariates from a respective model did not change the pattern of significance. BMI, body mass index.

Autonomic markers
AAHRHF-HRV
Fixed effects
F (df)PF (df)PF (df)P
Intercept (peak)
  Intercept29132.77 (367)≤0.001317646.14 (371)≤0.0015253.12 (433)≤0.001
  Group0.91 (368)>0.4000.98 (374)>0.4001.79 (436)>0.100
  Baseline321.53 (368)≤0.001230.68 (374)≤0.001101.47 (417)≤0.001
  Sex5.79 (299)0.0171.72 (257)>0.1005.98 (251)0.015
  Age0.46 (298)>0.4002.12 (258)>0.1008.47 (252)0.004
  BMI2.15 (298)>0.1000.38 (258)>0.5000.22 (252)>0.600
Recovery slope
  Intercept360.90 (369)≤0.001938.89 (254)≤0.00126.96 (250)≤0.001
  Group1.92 (369)>0.1000.67 (254)>0.6001.33 (250)>0.200
  Baseline1.41 (373)>0.2000.05 (258)>0.8002.87 (249)0.091
Random effects
Estimate (SE)Estimate (SE)Estimate (SE)
Subject0.18 (0.02)0.009 (0.001)0.43 (0.08)
Recovery slope≤0.001 (≤0.001)No variance; excludedNo variance; excluded
Immune markers
hsCRPIL-6
Fixed effects
F (df)PF (df)P
Intercept (peak)
  Intercept1160.07 (469)≤0.001<0.01 (1)>0.900
  Group0.64 (473)>0.6000.43 (4)>0.700
  Baseline27503.27 (452)≤0.001260.49 (1)≤0.001
  Sex0.36 (283)>0.5007.07 (1)0.008
  Age3.69 (284)0.0560.02 (1)>0.900
  BMI1.09 (284)>0.2002.04 (1)>0.100
Recovery slope
  Intercept55.34 (281)≤0.001
  Group0.74 (281)>0.500
  Baseline0.11 (282)>0.700
Random effects
Estimate (SE)
Subject0.004 (≤0.001)
Recovery slopeNo variance; excluded