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. 2012 Oct 25;3:131–145. doi: 10.2147/OAJSM.S36808

Table 5.

Change in urine parameters

Prestart 1 0.5 km Δ to prestart (%) 21.1 km Δ to prestart (%) start (%) 31.6 km Δ to pre-start (%) to pre-start (%) 42.195 km Total Δ (%)
Estimated GFR (mL/minute) 90.82 90.82 0.0 87.53 −3.6 86.49 −4.7 81.58 −10.2
Albumin in urine (mg/mmol Crea) 0.99 0.86 −13.1 0.43 −56.5 0.45 −54.5 0.48 −51.5
Osmolality (mOsm/kg) 600 363 −39.5 624 +4.0 722 +20.3 756 +26.0
Sodium in urine (mmol/mmol Krea) 23.85 30.11 +26.2 28.91 +21.2 19.48 −18.3 12.15 −49.0
Chloride in urine (mmol/mmol Krea) 26.7 36.85 +38.0 30.76 +15.2 19.83 −25.7 12.85 −51.8
Potassium in urine (mmol/mmol Krea) 6.96 11.33 +62.8 11.22 +61.2 7.85 +12.7 5.78 −16.9
Calcium in urine (mmol/mmol Krea) 0.63 0.42 −33.3 0.38 −39.6 0.29 −53.9 0.27 −57.1
Creatinine in urine (μmol/L) 5,206 2,696 −48.2 5,434 +4.3 8,467 +62.6 11,281 +116.6
Urea in urine (mmol/L) 274 141 −48.5 210 −23.3 283 +3.2 335 +22.2
Glucose in urine (mmol/mmol Krea) 0.02 0.08 +300.0 0.07 +250.0 0.05 +150.0 0.04 +100.0
Metanephrines in urine (μg/mmol Krea) 9.23 8.15 −11.7 10.50 +13.7 12.28 +33.0 10.19 +10.4
Normetanephrines in urine (μg/mmol Krea) 15.38 17.7 +15.0 11.42 −25.7 16.17 +5.1 17.02 +10.6

Abbreviation: GFR, glomerular filtration rate.