RT info:eu-repo/semantics/article T1 Impact of a competition with two consecutive matches in a day on physical performance in young tennis players A1 Gallo Salazar, Cesar A1 Del Coso, Juan A1 Barbado, David A1 López-Valenciano, Alejandro A1 Santo Rosa, Francisco Javier A1 Sanz Rivas, David A1 Moya, Manuel A1 Fernández Fernández, Jaime A2 Educacion Fisica y Deportiva K1 Educación Física K1 Sport performance K1 Tennis players K1 Tennis AB [EN] The purpose of this study was to analyze the effects of playing 2 tennis matches on the same day on physical performance in young tennis players. Twelve well-trained young tennis players took part in a simulated tennis competition consisting of 2 tennis matches on the same day (morning and afternoon sessions). Before and the day after the competition, physical performance was measured using a battery of countermovement jumps; a 10 m sprint; the 5–0–5 agility test; hip, grip and shoulder maximal isometric strength; shoulder range of motion; and a serve velocity test. Postcompetition results showed reduced performance in 10 m (–3.3%, effect size (ES) = small), dominant and nondominant 5–0–5 agility test (–4.6%, ES = moderate; –4.2%, ES = moderate, respectively), bilateral (–5.2%, ES = small), and unilateral countermovement jumps (dominant leg: –7.2%, ES = small; non-dominant leg: –9.1%, ES = small). Both dominant and nondominant shoulder external rotation range of motion increased (12.2%, ES = moderate; 5.6%, ES = small), whereas internal rotation decreased (–4.2%, ES = small; –3.3%, ES = small) in the postcompetition tests, together with the dominant shoulder external rotation (–10.7%, ES = moderate) and internal rotation (–9.3%, ES = small) strength. Physical impairments occurred in neuromuscular performance variables involving lower (e.g., jumping, sprinting, and change of direction) and upper (e.g., isometric strength and range of motion) limbs the day after playing a competition with 2 consecutive matches on the same day. These alterations in neuromuscular and sport-specific performance need to be taken into consideration when planning tournament schedules for young tennis players, as well as preparing match and recovery strategies. PB Canadian Science Publishing SN 1715-5312 LK https://hdl.handle.net/10612/18066 UL https://hdl.handle.net/10612/18066 NO Gallo-Salazar, C., Del Coso, J., Barbado, D., Lopez-Valenciano, A., Santos-Rosa, F. J., Sanz-Rivas, D., Moya, M., & Fernandez-Fernandez, J. (2017). Impact of a competition with two consecutive matches in a day on physical performance in young tennis players. Applied Physiology, Nutrition and Metabolism, 42(7), 750-756. https://doi.org/10.1139/APNM-2016-0540 DS BULERIA. Repositorio Institucional de la Universidad de León RD 16-may-2024