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. 2007 Jun 11;41(11):779–783. doi: 10.1136/bjsm.2007.036905

Table 1 Selected characteristics of the singles and doubles matches.

Pre‐play USG Degree minutes USG vs end TC (r) Sweat loss (litres) Fluid lntake (litres) % ΔBM
Singles (n = 8) 1.017 (0.003) 2502 (191) 0.87 (p = 0.005) 1.5 (0.2) 1.1 (0.2) −0.9 (0.2)
Doubles (n = 5) 1.025 (0.002) 3908 (461) 0.14 (p = 0.82) 1.9 (0.2) 1.7 (0.1) −0.5 (0.3)

USG, urine specific gravity; degree minutes, mean WBGT (°C) x length of match (including warm‐up) in min; end TC, core body temperature at end of play; r, Pearson correlation between USG and end TC; % ΔBM, percentage change in body mass (compared to pre‐play body mass).