Data di Pubblicazione:
2014
Citazione:
Influence of reaction time in table tennis players / A. Rossi, V. Romanò, G. Boccolini, G. Alberti - In: Book of abstracts of the 19th Annual Congress of the European College of Sport Science, 2nd - 5th July 2014, Amsterdam – The Netherlands / [a cura di] A. De Haan, C. J. De Ruiter, E. Tsolakidis. - Utrecht : European College of Sport Science, 2014 Jul. - ISBN 978-94-622-8477-7. - pp. 705-705 (( Intervento presentato al 19. convegno Annual Congress of the European College of Sport Science tenutosi a Amsterdam nel 2014.
Abstract:
Introduction Successful performance in table tennis depend upon the skill to react to an external stimuli. The reaction time (RT) is the time
spent from the moment the subject perceives the stimulus to the moment it begin the response. In table tennis players (TTP) the velocity to
response to a visual stimulus (VS) is very important (Bootsma et al., 1990). The aim of this study was to compare the RT after a VS between
the athletes that was positioned lowers (L500) and uppers (U500) 500 Italian rank position. Methods Twenty male subjects (22.5 ± 4.09)
with at least three years of experience were selected. Before the tests the athletes performed a standardized warm up. The TTP performed
five test: squat jump (SJ), countermovement jump (CMJ), reactivity in lower limbs (RLL), reactivity in upper limbs (RUL) and reactivity
in fingers (RF). The RLL, RUL and RF after VS was performed for dominant and non-dominant limb. The vertical jump capacity and the RT
were recorded using OptoJump Next system (Micrograte, Bolzano). To compare the data, the athletes were divided in two groups in
according to the Italian ranking (lowers and uppers the 500 rank position, 8 and 12 respectively). The statistical analysis were performed
using Prism (GraphPad Software, San Diego). Results It was found that in the SJ test the subjects L500 performed a high jump vs the U500
(39.82±6.01cm and 34.63±5.29cm respectively; p=0.02; ES=0.92). We have also found that the TTP had a lower RT in dominant lower
limb between L500 and U500 (0.63±0.02s, 0.66±0.03s respectively; p=0.04; ES=1.2), but we have found an opposite trend in dominant
upper limb between L500 and U500 (0.42±0.02s, 0.40±0.03s respectively; p=0.04; ES=1). However, we have not found a significant
statistical difference in CMJ (p=0.10), in dominant RLL (p=0.56), in non-dominant RUL (p=0.52), in dominant RF (p=0.86), and in nondominant
RF (p=0.26) between L500 and U500. Discussion The strength (vertical jump capacity) and the reactivity (particularly in nondominant
limb) in lower limbs could influence the ability of TTP. Disagreeing with what we expected, the TTP L500 had an upper RT in
dominant upper limb. The RT in upper limbs is not critical because in Donovan et al. study (2006) found that the difference between
trained and non-trained athletes was the hit velocity and no the RT. The well trainer subjects performed lower RT (Welford, 1988). Based
on these finding, it is important to train the TTP on lower limb RT after a VS. If the athletes is fast moving with lower limbs, they will prepare
before to perform the hit. In this way the TTP could perform a good hit because they have more time to prepare it. Reference Bootsma RJ
et al., 1990. J Exp Psychol Hum Percept Perform. 16, 21–29. Donovan OO et al., 2006. J Sports Sci Med. 5, 5–12. Welford AT, 1988. Ann NY
Acad Sci. 515, 1–17.
Tipologia IRIS:
03 - Contributo in volume
Keywords:
upper limb ; lower limb ; martial artists
Elenco autori:
A. Rossi, V. Romanò, G. Boccolini, G. Alberti
Link alla scheda completa:
Titolo del libro:
Book of abstracts of the 19th Annual Congress of the European College of Sport Science, 2nd - 5th July 2014, Amsterdam – The Netherlands