Changes in Renal Parameters during a Training Camp among Handball Players in the Sub-Saharan Environment

Table 2

Frequency of abnormal values of renal parameters of handball players during training camp (n = 15).

	Measure 1; Number (%)	Measure 2; Number (%)	Measure 3; Number (%)
eGFR (mL/min/1.73 m^2)
>90	4 (26.66)	10 (66.66)	11 (73.33)
<90	11 (73.33)	5 (33.33)	4 (26.66)
Fractional excretion of sodium (%)
<1	12 (80)	7 (46.66)	15 (100)^††
>1	3 (20)	4 (26.66)	0 (00)^†
>2	0 (00)	4 (26.66)	0 (00)^†
Serum potassium (mmol/L)
<3.5	01 (06.66)	0 (00)	04 (26.66)^†
>3.5	14 (93.33)	15 (100)	11 (73.33)^†
Hemoglobin rate (g/100 mL)
>12	1 (06.66)	3 (20)	8 (53.33)^†
<12	14 (93.33)	12 (80)	7 (46.66)^†

The values represent the absolute and relative frequencies of the abnormal values of the renal parameters studied; n: sample size; Measure 1: performed at the beginning of intensive training; Measure 2: performed 36 hours after the end of intensive training; Measure 3: performed 36 hours after the end of tapering; eGFR: estimated glomerular filtration rate using the Chronic Kidney Disease Epidemiology formula [15]; difference with Measure 1, significant at ; difference with Measure 1, significant at ; ^†difference with Measure 2, significant at ; ^††difference with Measure 2, significant at .