Pre-Tournament Athlete Biomarker Assessment

Two weeks before the tournament, saliva samples were obtained at (9:00 am and 8:00 pm) following a previously described protocol [29 (link)]. Saliva samples were frozen at -20°C and stored until analysis. Urine samples were also collected to analyze on-site specific gravity with a pre-calibrated hand-held refractometer (URC-N_e, Atago, Japan) as previously described[30 (link)]. During the match day, after saliva and urine collection, participant’s body weight (Tanita B-601, Tokyo, Japan) and height (Seca 202, Hamburg, Germany) were measured. In addition, before and after the match, neuromuscular tests were conducted.

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López-Samanes Á., G. Pallarés J., Pérez-López A., Mora-Rodríguez R, & Ortega J.F. (2018). Hormonal and neuromuscular responses during a singles match in male professional tennis players. PLoS ONE, 13(4), e0195242.

Publication 2018

URC-Ne

Body weight Frozen Held Saliva Urine Urine collection

Corresponding Organization : Universidad de Alcalá

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Variable analysis

independent variables

Time of saliva sample collection (9:00 am and 8:00 pm)

dependent variables

Saliva samples
Urine specific gravity
Body weight
Body height
Neuromuscular tests

control variables

Previously described protocol for saliva sample collection [29]
Previously described method for urine specific gravity measurement [30]
Calibrated instruments for body weight (Tanita B-601) and height (Seca 202) measurements

Annotations

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