Impact of long-duration adventure racing on hydration status, blood electrolytes and biomarkers of kidney function in trained adolescent athletes.
J Sports Med Phys Fitness
; 62(11): 1552-1559, 2022 Nov.
Article
em En
| MEDLINE
| ID: mdl-35179331
ABSTRACT
BACKGROUND:
Little is known about the biochemical consequences of endurance activities in adolescents. The present study aimed to examine the impact of a long-duration adventure race (>5 h) on hydration status, blood electrolytes and biomarkers of kidney function in adolescent athletes.METHODS:
Twenty male adolescents aged 14 to 17 y (mean±SD; body mass 59.7±9.1 kg and maximal ORESULTS:
The race was completed on average in 0538±0020 hmin under cold and rainy conditions (10-15 °C and 83-93% of relative humidity). Fluid intake was 1.45±0.66 L and body mass decreased by 1.2% compared to before the race (P<0.001). Blood sodium concentrations remained stable after the race (140.4±2.1 mmolâL-1) despite an expansion in the plasma volume of 8.9±15.6%. No significant variations in BUN or BUN-to-creatinine ratio occurred. A significant increase in creatinine (+13.5%, P=0.003) was observed immediately after the race but remained within the reference range.CONCLUSIONS:
The long-duration race completed under cold and humid conditions seems not to have exposed adolescents to hypohydration, hyponatremia or clinically significant alterations in kidney function.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Cloretos
/
Atletas
Limite:
Adolescent
/
Humans
/
Male
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article