TY  - JOUR
A1  - Fernandez-Fernandez, Jaime
A1  - Granacher, Urs
A1  - Sanz-Rivas, David
A1  - Sarabia Marin, Jose Manuel
A1  - Luis Hernandez-Davo, Jose
A1  - Moya, Manuel
T1  - Sequencing Effects of Neuromuscular Training on Physical Fitness in Youth Elite Tennis Players
JF  - Journal of strength and conditioning research : the research journal of the NSCA
N2  - Fernandez-Fernandez, J, Granacher, U, Sanz-Rivas, D, Sarabia Marin, JM, Hernandez-Davo, JL, and Moya, M. Sequencing effects of neuromuscular training on physical fitness in youth elite tennis players. J Strength Cond Res 32(3): 849-856, 2018-The aim of this study was to analyze the effects of a 5-week neuromuscular training (NMT) implemented before or after a tennis session in prepubertal players on selected components of physical fitness. Sixteen high-level tennis players with a mean age of 12.9 +/- 0.4 years participated in this study, and were assigned to either a training group performing NMT before tennis-specific training (BT; n = 8) or a group that conducted NMT after tennis-specific training (AT; n = 8). Pretest and posttest included: speed (5, 10, and 20 m); modified 5-0-5 agility test; countermovement jump (CMJ); overhead medicine ball throw (MBT); and serve velocity (SV). Results showed that the BT group achieved positive effects from pretest to posttest measures in speed (d = 0.52, 0.32, and 1.08 for 5, 10, and 20 m respectively), 5-0-5 (d = 0.22), CMJ (d = 0.29), MBT (d = 0.51), and SV (d = 0.32), whereas trivial (10 m, 20 m, CMJ, SV, and MBT) or negative effects (d = -0.19 and -0.24 for 5 m and 5-0-5, respectively) were reported for the AT group. The inclusion of an NMT session before the regular tennis training led to positive effects from pretest to posttest measures in performance-related variables (i.e., jump, sprint, change of direction capacity, as well as upper-body power), whereas conducting the same exercise sessions after the regular tennis training was not accompanied by the same improvements.
KW  - athletic performance
KW  - intermittent sport
KW  - plyometrics
KW  - speed
KW  - change of direction
Y1  - 2018
U6  - https://doi.org/10.1519/JSC.0000000000002319
SN  - 1064-8011
SN  - 1533-4287
VL  - 32
IS  - 3
SP  - 849
EP  - 856
PB  - Lippincott Williams & Wilkins
CY  - Philadelphia
ER  - 
TY  - JOUR
A1  - Fernandez-Fernandez, Jaime
A1  - Moya-Ramon, Manuel
A1  - Santos-Rosa, Francisco Javier
A1  - Gantois, Petrus
A1  - Nakamura, Fabio Yuzo
A1  - Sanz-Rivas, David
A1  - Granacher, Urs
T1  - Within-session sequence of the tennis serve training in youth elite players
JF  - International journal of environmental research and public health
N2  - The influence of muscular fatigue on tennis serve performance within regular training sessions is unclear. Therefore, the aim of the present study was to examine the within-session sequence of the tennis serve in youth tennis. Twenty-five young male (14.9 +/- 0.9 years) and female (14.5 +/- 0.9 years) players participated in this within-subject crossover study, and they were randomly but sex-matched assigned to different training sequences (serve exercise before tennis training (BTS) or after tennis training (ATS)). Pre- and post-tests included serve velocity performance and accuracy, shoulder strength, and range-of-motion (ROM) performance (internal/external rotation). Results showed that after one week of serve training conducted following the ATS sequence, significant decreases were found in serve performance (e.g., speed and accuracy), with standardized differences ranging from d = 0.29 to 1.13, as well as the shoulder function (strength [d = 0.20 to 1.0] and ROM [d = 0.17 to 0.31]) in both female and male players, compared to the BTS sequence. Based on the present findings, it appears more effective to implement serve training before the regular tennis training in youth players. If applied after training, excessive levels of fatigue may cause shoulder imbalances that could be related to an increased injury risk.
KW  - athletes
KW  - athletic performance
KW  - fatigue
KW  - fitness
KW  - shoulder strength
KW  - range of motion
Y1  - 2020
U6  - https://doi.org/10.3390/ijerph18010244
SN  - 1660-4601
VL  - 18
IS  - 1
PB  - MDPI
CY  - Basel
ER  -