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Assessing the Effects of Kata and Kumite Techniques on Physical Performance in Elite Karatekas

Authors
  • Molinaro, Luca1, 2
  • Taborri, Juri1
  • Montecchiani, Massimo3
  • Rossi, Stefano1
  • 1 (S.R.)
  • 2 Motustech – Sport & Health Technology c/o Marilab, 00121 Ostia Lido, Rome, Italy
  • 3 FIJLKAM – Italian Federation of Judo, Wrestling, Karate and Martial Arts, 00100 Rome, Italy
Type
Published Article
Journal
Sensors
Publisher
MDPI AG
Publication Date
Jun 03, 2020
Volume
20
Issue
11
Identifiers
DOI: 10.3390/s20113186
PMID: 32503343
PMCID: PMC7309074
Source
PubMed Central
Keywords
Disciplines
  • Article
License
Green

Abstract

This study aimed at assessing physical performance of elite karatekas and non-karatekas. More specifically, effects of kumite and kata technique on joint mobility, body stability, and jumping ability were assessed by enrolling twenty-four karatekas and by comparing the results with 18 non-karatekas healthy subjects. Sensor system was composed by a single inertial sensor and optical bars. Karatekas are generally characterized by better motor performance with respect non-karatekas, considering all the examined factors, i.e., mobility, stability, and jumping. In addition, the two techniques lead to a differentiation in joint mobility; in particular, kumite athletes are characterized by a greater shoulder extension and, in general, by a greater value of preferred velocity to perform joint movements. Conversely, kata athletes are characterized by a greater mobility of the ankle joint. By focusing on jumping skills, kata technique leads to an increase of the concentric phase when performing squat jump. Finally, kata athletes showed better stability in closed eyes condition. The outcomes reported here can be useful for optimizing coaching programs for both beginners and karatekas based on the specific selected technique.

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