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Table 1 Stage time and average speed 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

  UER SR FR
Stage description Running time (h:min) Running time (h:min) Running time (h:min)
  and speed (km/h) and speed (km/h) and speed (km/h)
Stage 1: 37 km 4:54 (0:51) 5:29 (0:35) 4:10 (0:28)
503 to 1443 m ASL 7.6 (1.4) 6.8 (0.7) 8.9 (1.0)
Tmax: 32°C; RHmax: 32%    
Stage 2: 45 km 6:37 (1:20) 7:32 (1:06) 5:38 (0:46)
830 to 1338 m ASL 6.8 (1.3) 6.0 (0.8) 8.0 (1.0)
Tmax: 34°C; RHmax: 33%    
Stage 3: 40 km 4:59 (0:53) 5:37 (0:39) 4:15 (0:27)
689 to 1302 m ASL 8.0 (1.6) 7.1 (0.9) 9.4 (1.2)
Tmax: 38°C; RHmax: 37%    
Stage 4: 65 km 7:51 (1:25) 8:52 (1:01) 6:48 (0:54)
671 to 1152 m ASL 8.3 (1.8) 7.3 (1.0) 9.6 (1.7)
Tmax: 40°C; RHmax: 33%    
Stage 5: 38 km 4:16 (1:05) 4:49 (1:05) 3:35 (0:35)
473 to 1065 m ASL 8.9 (2.1) 7.9 (1.6) 10.6 (1.7)
Tmax: 40°C; RHmax: 40%    
Total: 225 km 28:03 (4:34) 31:52 (2:51) 24:22 (2:20)
8.0 (1.4) 7.1 (0.6) 9.2 (0.9)
  1. Mean (SD): UER (n = 74); slow runners (SR: MSUM mean speed <8 km/h, n = 41); fast runners (FR: MSUM mean speed ≥8 km/h, n = 33).