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Medicina dello Sport 2014 March;67(1):27-45


language: English, Italian

Effects of plyometric training on phases of jumping in young fencers

Sannicandro I. 1, Piccinno A. 1, Cofano G. 1, Eirale C. 2, Bisciotti G. N. 3

1 Corso di laurea in Scienze delle Attività Motorie e Sportive Scienze Biomediche, Università di Foggia, Foggia, Italy; 2 Aspetar Hospital, Sport City, Doha, Qatar; 3 Qatar Orthopedic and Sport Medicine Hospital, FIFA Center Kinemove Rehabilitation Centers, Pontremoli, Parma, La Spezia, Doha, Qatar


AIM: Plyometric power training is a methodology that is used widely in sport for the young, but in literature there is a lack of studies applied to young fencers. This study aims to describe the effects of plyometric power training combined with technical-tactical training, on the phases of counter-movement jumps in young fencers.
METHODS: The study was performed on a sample of 31 young fencers (13.6±1.4 years, 165.2±1.3 cm, 50.7±5.2 kg), of whom 14 were female (13.5±1.4 years) and 17 were male (13.9±1.2 years), divided randomly into EG (plyometric and technical-specific training) and CG (only technical-specific training). For each participant in the study the rear or supporting limb and the front or lunging limb were analyzed and the values obtained from the tests were broken down according to this classification. Separate force platforms were used, capable of giving a signal for the two lower limbs performing a counter-movement jump (CMJ). The training protocol lasted 8 weeks with a frequency of 3 sessions a week.
RESULTS: The study identified a decrease in the overstretching time in the EG and a decrease in the ground reaction force upon impact for both limbs and both genders, that were statistically significant: the EG female group showed a statistically significant increase in strength in the coupling phase for the front limb (P<0.05). Statistically significant differences between the groups in T1 emerged in the over-stretching time, in the peak force in the coupling time phase and in the ground reaction force upon impact.
CONCLUSION: Plyometric training combined with technical-tactical training is able to modify the variables in the phases of counter-movement jumps in young fencers, making it possible to reduce the eccentric over-stretching stage, to increase strength in the coupling time stage and to reduce the ground reaction force upon impact; the latter constitute a potentially harmful element for young athletes.

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