[PREVALENCE OF DEHYDRATION BEFORE TRAINING IN PROFESIONAL CHILEAN SOCCER PLAYERS].
BACKGROUND
there is a lack of studies concerning hydration status before training in professional soccer player.


OBJECTIVE
to describe hydration status before regular training practices in professional soccer players.


METHODS
a total of 156 male soccer players (age 25.4 ± 5.2 y) from six professional Chilean clubs were included. No hydration or food intake recommendations were made before experiment, with the aim to assess hydration status under athlete's regular "real" conditions. Body mass, height and urine specific gravity (USG) measurements were performed before training practices.


RESULTS
98% of athletes showed dehydration (between moderate and severe) before regular training practices.


CONCLUSIONS
dehydration is the most prevalent hydration status in professional Chilean soccer players before training, which may negatively affect athlete's performance and may increase their risk of heat-related injuries.
Exercise Science Laboratory, School of Kinesiology, Faculty of Medicine, Universidad Finis Terrae, Santiago. Nutrition and Exercise Laboratory, Faculty of Medicine, Universidad Mayor, Santiago.. m.castro.med@gmail.com.
Mauricio
M
Castro-Sepúlveda
Family Health Center, Panquehue.. sebastianastudillo15@yahoo.es.
Sebastian
S
Astudillo
Family Health Center, "Tomas Rojas", Región de Los Ríos.. profecristian.alvarez@gmail.com.
Cristian
C
Álvarez
School of Education, Universidad de Concepción.. rafaelzapata@udec.cl.
Rafael
R
Zapata-Lamana
Exercise Science Laboratory, School of Kinesiology, Faculty of Medicine, Universidad Finis Terrae, Santiago.. hzbinden@uft.cl.
Hermann
H
Zbinden-Foncea
Department of Physical Activity Sciences, Universidad de Los Lagos, Osorno. Department of Physical Education, Sport and Recreation, Universidad de La Frontera, Temuco. Chile.. m.castro.med@gmail.com.
Rodrigo
R
Ramírez-Campillo
Nutrition and Exercise Laboratory, Faculty of Medicine, Universidad Mayor, Santiago.. carlos.jorquera@mayor.cl.
Carlos
C
Jorquera
D000328:Adult; D054874:Athletic Performance; D001827:Body Height; D001835:Body Weight; D002677:Chile; D003681:Dehydration / Q000453:epidemiology*; D006801:Humans; D008297:Male; D015995:Prevalence; D012916:Soccer; D016482:Urinalysis; D055815:Young Adult