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. Author manuscript; available in PMC: 2015 Dec 1.
Published in final edited form as: J Strength Cond Res. 2015 Dec;29(12):3447–3452. doi: 10.1519/JSC.0000000000000400

Table 2.

Changes in hydration indices throughout the training day

Urine Specific Gravity Urine Color Change in Body Weight
Morning Pre-training Post-
training
Morning Pre-
training
Post-
training
(kg) (%)
Swimming 1.026±0.003 1.026±0.006 1.023±0.008 5±1 5±1 4±1 −0.53±0.23 −0.8±0.16
Running 1.026±0.006 1.021±0.006 1.021±0.007 4±1 3±1 3±1 −0.58±0.12 −1.0±0.09
Canoeing 1.026±0.004 1.021±0.008 1.023±0.005 5±1 4±1 5±1 −0.67±0.01 −1.0±0.01
Basketball 1.026±0.005 1.024±0.005 1.026±0.005 5±1 4±1 5±1 −0.79±0.01 −1.0±0.01
Gymnastics 1.025±0.007 1.022±0.004 1.024±0.008 5±1 4±1 4±1 −0.80±0.02 −1.7±0.01
Overall 1.026±0.005 1.023±0.006 1.023±0.007 5±1 4±1 4±1 −0.68±0.07 −1.1±0.07

Values are means ± 1 SD