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Table 2 Hydration indices

From: Short-term creatine supplementation has no impact on upper-body anaerobic power in trained wrestlers

Parameter Placebo (n = 10) Creatine (n = 10)
Trial 1 Trial 2 Trial 1 Trial 2
USG before T1 1.0220 (0.0061) 1.0194 (0.0084) 1.0167 (0.0069) 1.0216 (0.0075)
USG after T4 1.0197 (0.0048) 1.0184 (0.0041) 1.0184 (0.0029) 1.0192 (0.0036)
Urine volume (ml) 194 (95) 240 (100) 281 (141) 291 (250)
Water intake (ml) 1033 (427) 955 (322) 1003 (418) 1047 (428)
Water retention (ml) 839 (431) 716 (341) 723 (431) 757 (439)
Change in PV (%)
Before T1 → After T4 −2.69 (5.13) −3.59 (5.69) −4.63 (4.80) −1.82 (4.80)
  1. Data are presented as mean (SD). Urine volume, water intake and water retention were measured for the time interval between before T1 and after T4. USG urine specific gravity; PV plasma volume; T1 and T4—upper- body intermittent sprint performance tests
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