Bogdanis GC, Donti O, Papia A, Donti A, Apostolidis N, Sands WA. Effect of Plyometric Training on Jumping, Sprinting and Change of Direction Speed in Child Female Athletes.
Sports (Basel) 2019;
7:sports7050116. [PMID:
31108905 PMCID:
PMC6572020 DOI:
10.3390/sports7050116]
[Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/12/2019] [Accepted: 05/16/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND
This study examined the effects of 8 weeks of plyometric training on jumping, sprinting, and change of direction (COD) performance.
METHODS
Fifty female 7-9-year-old gymnasts were randomly assigned to a plyometric training group (PG; n = 33), that performed supplementary plyometric training twice per week, and a control group (CG; n = 17) that continued regular training. The following tests were performed before and after the intervention: 10 and 20 m sprints, 5 + 5 m and 10 + 10 m COD tests, one-leg and two-leg countermovement jump (CMJ), drop jump (DJ), squat jump (SJ), and standing long jump (SLJ).
RESULTS
Only a main effect for time was found for all jumping performance parameters (p = 0.001). However, the improvement of one- and two-leg CMJ in PG had a greater effect size than CG (0.72 and 0.67 vs. 0.34 and 0.18, respectively). Group × time interactions were found for 10 and 20 m sprint tests (p = 0.018 and p = 0.011, respectively) and for 10 + 10 m COD (p = 0.008) with the post hoc test showing improvement only for the PG (p = 0.001, 0.001, and 0.003 and d = 1.1, 1.14, and 0.6, respectively).
CONCLUSIONS
Supplementary plyometric training increased sprint and COD performance more than regular gymnastics training, while jumping performance was equally improved in both groups.
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