Renal Protein Excretion After Exercise in Man

Poortmans, Jacques; Wolfs, Jean Claude; Rarapaer, L.; Niset, Georges; Sellier, Michèle

doi:10.1249/00005768-198315020-00325

Cited by 20 publications

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“…It also appeared that postexercise proteinuria was more related to the intensity of the exercise (power output) than to its relative intensity (% of VO 2max ) (7). Using the albumin excretion rate as evidence of dysfunction at the glomerular barrier, Figure 2 indicates that maximal exercise load did induce an enhanced glomerular membrane permeability change in young individuals, as reported previously (1,2,(6)(7)(8)(9). The excretion of albumin was lower, however, in elderly individuals despite the fact that they attained their maximal work capacity.…”

Section: Discussionsupporting

confidence: 64%

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Glomerular Filtration Rate and Albumin Excretion After Maximal Exercise in Aging Sedentary and Active Men

Poortmans

Ouchinsky²

2006

The Journals of Gerontology Series A: Biological Sciences and M

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Section: Discussionsupporting

confidence: 64%

“…Moreover, the excretion of plasma proteins is due primarily to enhanced glomerular membrane permeability associated with a saturation of the reabsorption process (8). These effects, which are intensity-dependent, are transient, with return to basal state with a half-life of about 1 hour (9).…”

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confidence: 99%

Glomerular Filtration Rate and Albumin Excretion After Maximal Exercise in Aging Sedentary and Active Men

Poortmans

Ouchinsky²

2006

The Journals of Gerontology Series A: Biological Sciences and M

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“…Exercise induced proteinuria was reported in military officers submitted to intense training, i.e. volleyball players and runners (Poortmans et al 1989). The study of (Clerico et al 1990) indicates that albuminuria furnishes a greater contribution to the exerciseinduced proteinuria and the probable origin of the increased excretion of protein is glomerular and tubular, and is reversible.…”

Section: Discussionmentioning

confidence: 99%

Half-ironman induces changes in the kidney function of triathletes

Puggina

Machado

Filho

et al. 2014

An. Acad. Bras. Ciênc.

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Long duration exercise may lead to the occurrence of urine abnormalities. Aiming to investigate the effects of triathlon training and competition on the renal function, twelve male triathletes (32.60 ± 5.10 years, 175.04 ± 6.67m, 71.83 ± 7.42Kg) were studied during the 12-week training protocol and after a Half Ironman. Urine was collected in M-1 -beginning of the training season, M-2 -before the competition and M-3 -after the half ironman. Urine pH was measured using reagent strips, density with a refractometer, proteinuria by Bradford assay, creatinine with a colorimetric assay and blood cells by microscopy. Data were analyzed using Shapiro-Wilk test, One-Way ANOVA and Tukey-Kramer test (p < 0,05). Changes were found after the competition in the protein (M-1= 7.41 ± 2.48; M-2= 7.57 ± 3.74; M-3= 86.10 ± 76.21 mg/mL), creatinine (M-1= 157.66 ± 41.59; M-2= 177.68 ± 44.46; M-3= 316.46 ± 132.86 mg/mL), erythrocytes (M-1= 1060.00 ± 0.30; M-2= 1142.86 ± 377.96; M-3= 52555.56 ± 58.65 units/mL) and leucocytes (M-1= 2375.00 ± 744.02; M-2= 2090.00 ± 0.50; M-3= 5000.00 ± 2738.60 units/mL) excretion when compared to the other collection times. These effects are probably due to the exercise-induced modifications in the glomerular membrane and endocrine variables such as anti diuretic hormone, catecholamines and aldosterone.

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“…11 Finally, the duration of exercise induced proteinuria is also not well defined. Poortmans 10 found that albumin excretion rate declined logarithmically after exercise with a half-life of 54 min, while another study suggested that it may last up to four days. 12 Measuring urine albumin concentration has also undergone change.…”

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“…The mean increased from 15 µg per minute (20.6 mg/day) before exercise to 316 µg per minute (455 mg/day) one hour after exercise. 10 The proportion reaching the A/C threshold was not reported. Another group found that 2 of 13 diabetics without microalbuminuria and none of 12 normal subjects reached an A/C ratio of 0.25 mg/mmol after exercising to the anaerobic threshold.…”

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Prevalence and duration of exercise induced albuminuria in healthy people

Heathcote¹,

Wilson²,

Quest³

et al. 2009

CIM

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Clin Invest Med 2009; 32 (4): E261-E265. AbstractPurpose: Vigorous exercise increases urine protein excretion. However, whether exercise increases urine albumin enough to reach the threshold for microalbuminuria (2.8 and 2.0 mg/mmol creatinine in women and men respectively) is uncertain. Furthermore, the duration of such albuminuria is unknown. We aimed to estimate the prevalence and duration of exercise induced microalbuminuria in normal healthy volunteers. Methods: Thirty normal subjects provided a urine sample, then exercised to maximal heart rate, or exhaustion, using the standard Bruce Treadmill protocol. Further urine samples were collected within 15 min of completing exercise, and 24 and 48 hr later. Urine creatinine was measured by the Jaffé method and albumin via immunoturbidometry. Results: Baseline urine albumin: creatinine ratio (A/C) was 0.5 ± 0.3 (SD) in women (n=14) and 0.4 ± 0.1 mg/ mmol in men (n=16). Immediately after exercise A/C increased to 5.6 ± 9.7 (in women) and 7.6 ± 17.6 (in men). Twelve of 30 subjects reached the threshold for microalbuminuria and 2 that for macroalbuminuria. By 24 hr all had returned to baseline and there was no further change at 48 hours. Conclusions: A short period, 15-20 min, of maximal exercise leads to A/C ratios above the microalbuminuria threshold in a substantial proportion of normal subjects. Physicians should not measure urine albumin in patients who give a history of such activity in the past 24 hr.

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Renal Protein Excretion After Exercise in Man

Cited by 20 publications

References 0 publications

Glomerular Filtration Rate and Albumin Excretion After Maximal Exercise in Aging Sedentary and Active Men

Glomerular Filtration Rate and Albumin Excretion After Maximal Exercise in Aging Sedentary and Active Men

Half-ironman induces changes in the kidney function of triathletes

Prevalence and duration of exercise induced albuminuria in healthy people

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