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Table 3 Total pre-stage and immediately post-stage total water ingestion of UER along MSUM competition

From: Water and sodium intake habits and status of ultra-endurance runners during a multi-stage ultra-marathon conducted in a hot ambient environment: an observational field based study

  Stage 1 Stage 2 Stage 3 Stage 4 Overall mean
Pre-stage (ml)      
UER 1052 (640) 831 (511) 767 (436) 767 (398) 854 (385)
SR 1112 (967) 782 (521) 784 (432) 803 (401) 870 (387)
FR 967 (530) 902 (500) 742 (452) 715 (398) 831 (390)
Pre-stage (ml/kgBM)      
UER 15.2 (9.1) 12.2 (7.3) 11.4 (7.3) 11.3 (5.8) 12.5 (5.3)
SR 16.2 (9.8) 11.5 (6.7) 11.7 (5.7) 12.0 (5.4) 12.8 (5.0)
FR 13.7 (7.8) 13.1 (8.1) 11.1 (7.6) 10.3 (6.4) 12.0 (6.3)
Post-stage (ml)      
UER 1396 (716) 1171 (667) 1179 (621) 1116 (607) 1214 (504)
SR 1201 (696) 1053 (536) 1014 (464) 1004 (594) 1068 (385)
FR 1604 (667)c 1342 (804) 1418 (744)c 1280 (602) 1426 (587)cc
Post-stage (ml/kgBM)      
UER 20.8 (11.2) 17.7 (10.3) 17.7 (9.4) 16.9 (9.9) 18.3 (7.9)
SR 18.7 (11.8) 16.4 (8.9) 15.8 (8.1) 15.8 (10.4) 16.6 (7.1)
FR 24.0 (9.6) 19.6 (12.0) 20.5 (10.7) 18.6 (9.0) 20.7 (8.6)
  1. Mean (SD): UER (n = 54); slow runners (SR; MSUM mean speed <8 km/h, n = 32); fast runners (FR; MSUM mean speed ≥8 km/h, n = 22). † p < 0.05 vs. Stage 1; cc p < 0.01 and c p < 0.05 vs. SR.