Relationship of glomerular filtration rate and serum CK activity after resistance exercise in women
2012
The aim of study was to assess the correlation between the changes in serum CK activity after a resistance exercise and renal function measured by glomerular filtration rate (eGFR). Twenty-nine trained women (32 ± 10 years; 157 ± 4 cm; 58.8 ± 6.4 kg) performed a resistance exercise session with 17 exercises with 3 × 12 repetitions in a circuit training fashion. Subjects provided blood samples prior to exercise session (PRE), and at 24, 48, and 72 h following exercise session for creatine kinase (CK) and creatinine. 24-Urine samples were collected before and 72 h after exercises. eGFR was obtained by the three most recommended methods (MDRD; MCQE; Cockcroft-Gault). After the exercise session, serum CK activity increase up 1.68 times (P < 0.01). Serum creatinine increased 25.5% (P = 0.0000) while urinary creatinine decreased on average 6.4% (P = 0.0422). eGFR decreased in all formulas: MDRD by 21.5%, MCQE by 14.2%, and C-G by 17% (all with P < 0.01). Ccr also decreased (−22.9%, P < 0.01). The index of correlation was significant for MDRD (r = −0.924; P < 0.01), C-G (r = −0.884; P < 0.01), and MQCE (r = −0.644; P < 0.05). In conclusion, we observed a significant negative correlation between CK activity and the eGFR indices of renal function.
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