Biology of Sport
eISSN: 2083-1862
ISSN: 0860-021X
Biology of Sport
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3/2022
vol. 39
 
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abstract:
Original paper

Effects of isoinertial or machine-based strength training on performance in tennis players

Jose Canós
1
,
Francisco Corbi
2, 3
,
Joshua Colomar
1
,
Rafel Cirer-Sastre
2, 3
,
Ernest Baiget
4

1.
National Institute of Physical Education of Catalonia (INEFC), University of Barcelona (UB), Barcelona, Spain
2.
National Institute of Physical Education of Catalonia (INEFC), University of Lleida (UdL), Lleida, Spain
3.
Human Movement Research Group (HMRG), University of Lleida (UdL), Lleida, Spain
4.
Sport Performance Analysis Research Group (SPARG), University of Vic – Central University of Catalonia, Barcelona, Spain
Biol Sport. 2022;39(3):505–513
Online publish date: 2021/07/03
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The objective of this study was to analyze the effects of two 8-week neuromuscular training (NMT) interventions on selected physical indicators in young tennis players. Twenty-four junior male tennis players were assigned to a machine-based (MG) (n = 8), flywheel (FG) (n = 8) or a control training group (CG) (n = 8). Tests at baseline, week 4 and 8 included: countermovement jump (CMJ); speed (S; 5, 10, 15 m); agility (right [AR] and left [AL]); serve velocity (SV) and medicine ball throws (MBT; overhead [O], forehand [FH], backhand [BH]). MG and FG attained large positive effects at week 4 in CMJ, S 10 m; AR, AL and MBT FH only in FG. Regarding inter- to post-test, MG achieved large positive effects in MBT O, FH and both groups in BH. Large negative effects appeared for FG in S 5 and 10 m and AR and AL. Both NMT interventions led to positive effects from baseline to week 4 measures in CMJ, S 5 m, 10 m and agility and at week 8 in MBT. Conducting the same NMT for a longer period of time did not lead to the same improvements and other negative effects in FG appeared. Results indicate that performing these interventions with little exercise variability or load management, especially after technical-tactical sessions, could interpose further beneficial outcomes and initial gains could be impaired.
keywords:

Eccentric training, Racket sports, Neuromuscular performance, Physical test

 
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