Table 1. Relationships (Pearson’s correlation coefficient [r] and 95% confidence intervals) between internal and external training load metrics.
Session duration TRIMP Banister TRIMP Edwards TRIMP-TEAM PlayerLoad sRPE dRPE-Breathing dRPE-Legs
TRIMP Banister 0.72*
[0.64-0.79]		 -
TRIMP Edwards 0.86*
[0.81-0.9]		 0.95*
[0.93-0.96]		 -
TRIMP-TEAM 0.39*
[0.25-0.51]		 0.74*
[0.66-0.8]		 0.65*
[0.55-0.73]		 -
PlayerLoad 0.47*
[0.34-0.58]		 0.43*
[0.29-0.55]		 0.50*
[0.37-0.61]		 0.26*
[0.11-0.4]		 -
sRPE 0.82*
[0.76-0.86]		 0.68*
[0.59-0.76]		 0.79*
[0.72-0.84]		 0.44*
[0.31-0.56]		 0.46*
[0.33-0.57]		 -
dRPE-Breathing 0.77*
[0.7-0.83]		 0.60*
[0.49-0.69]		 0.71*
[0.62-0.78]		 0.35*
[0.21-0.48]		 0.46*
[0.33-0.57]		 0.92*
[0.89-0.94]		 -
dRPE-Legs 0.83*
[0.78-0.87]		 0.69*
[0.6-0.76]		 0.78*
[0.71-0.83]		 0.44*
[0.31-0.56]		 0.48*
[0.35-0.59]		 0.95*
[0.93-0.96]		 0.91*
[0.88-0.93]		 -
Total VHI 0.66*
[0.56-0.74]		 0.58*
[0.47-0.68]		 0.64*
[0.55-0.73]		 0.35*
[0.21-0.48]		 0.11
[-0.04-0.26]		 0.50*
[0.37-0.6]		 0.43*
[0.3-0.55]		 0.51*
[0.39-0.62]
Data are drawn from all sessions during the training microcycle. Total VHI = combined accelerations, decelerations and left/right turns >3.5 m.s-2 during a given session. Data derived from inertial movement analysis (IMA Version 2, Catapult Sports).* represents statistical significance (p < 0.05). Interpretation of the correlation coefficients; 0-0.09 trivial, 0.1-0.29 small, 0.3-0.49 moderate, 0.50-0.69 large, 0.70-0.89 very large, 0.90–0.99 nearly perfect and 1.00 perfect (Hopkins et al., 2009). sRPE, dRPE-Breathing and dRPE-Legs all represent the training load calculated from the respective raw RPE values, multiplied by the session duration.