Abstract
In judo competition for visual impairment, athletes of different classes compete against each other in the same category; B1 athletes are totally blind, whereas B2 and B3 athletes are partially sighted. To test for potential competition disparities due a single category of athletes, this study aimed to compare competitive and technical-tactical performance in visually impaired judo athletes with different degrees of visual impairment. The authors analyzed 340 judo matches from the 2012 and 2016 Paralympic Games. The scores, penalties, efficiency index, and types of medals were examined, as well as the technical variation and temporal structure. The main finding was that blind judo athletes presented lower scores (p < .05; effect size [ES] = 0.43-0.73), medals (p < .05), and efficiency (p < .05; ES = 0.40-0.73); different patterns of play; and a shorter time to lose than partially sighted athletes (p = .027; ES = 0.10-0.14). However, the penalties were similar between classes (p > .05; ES = 0.07-0.14). The odds ratio of a winning medal was 3.5-8 times less in blind athletes than in partially sighted athletes (p < .01). In conclusion, blind judo athletes presented lower competitive and technical-tactical performance than athletes with some residual functional vision. These findings provide support for the development of new evidence-based criteria for judo classification based on vision impairment.
| Original language | English |
|---|---|
| Pages (from-to) | 388-398 |
| Number of pages | 11 |
| Journal | Adapted physical activity quarterly : APAQ |
| Volume | 36 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 27 Jun 2019 |
Fingerprint
Keywords
- combat sport
- Paralympic sport
- technical analysis
- visual impairment
Cite this
}
The Effect of Vision Impairment on Competitive and Technical-Tactical Performance in Judo : Is the Present System Legitimate? / Kons, Rafael L.; Krabben, Kai; Mann, David L.; Fischer, Gabriela; Detanico, Daniele.
In: Adapted physical activity quarterly : APAQ, Vol. 36, No. 3, 27.06.2019, p. 388-398.Research output: Contribution to Journal › Article › Academic › peer-review
TY - JOUR
T1 - The Effect of Vision Impairment on Competitive and Technical-Tactical Performance in Judo
T2 - Is the Present System Legitimate?
AU - Kons, Rafael L.
AU - Krabben, Kai
AU - Mann, David L.
AU - Fischer, Gabriela
AU - Detanico, Daniele
PY - 2019/6/27
Y1 - 2019/6/27
N2 - In judo competition for visual impairment, athletes of different classes compete against each other in the same category; B1 athletes are totally blind, whereas B2 and B3 athletes are partially sighted. To test for potential competition disparities due a single category of athletes, this study aimed to compare competitive and technical-tactical performance in visually impaired judo athletes with different degrees of visual impairment. The authors analyzed 340 judo matches from the 2012 and 2016 Paralympic Games. The scores, penalties, efficiency index, and types of medals were examined, as well as the technical variation and temporal structure. The main finding was that blind judo athletes presented lower scores (p < .05; effect size [ES] = 0.43-0.73), medals (p < .05), and efficiency (p < .05; ES = 0.40-0.73); different patterns of play; and a shorter time to lose than partially sighted athletes (p = .027; ES = 0.10-0.14). However, the penalties were similar between classes (p > .05; ES = 0.07-0.14). The odds ratio of a winning medal was 3.5-8 times less in blind athletes than in partially sighted athletes (p < .01). In conclusion, blind judo athletes presented lower competitive and technical-tactical performance than athletes with some residual functional vision. These findings provide support for the development of new evidence-based criteria for judo classification based on vision impairment.
AB - In judo competition for visual impairment, athletes of different classes compete against each other in the same category; B1 athletes are totally blind, whereas B2 and B3 athletes are partially sighted. To test for potential competition disparities due a single category of athletes, this study aimed to compare competitive and technical-tactical performance in visually impaired judo athletes with different degrees of visual impairment. The authors analyzed 340 judo matches from the 2012 and 2016 Paralympic Games. The scores, penalties, efficiency index, and types of medals were examined, as well as the technical variation and temporal structure. The main finding was that blind judo athletes presented lower scores (p < .05; effect size [ES] = 0.43-0.73), medals (p < .05), and efficiency (p < .05; ES = 0.40-0.73); different patterns of play; and a shorter time to lose than partially sighted athletes (p = .027; ES = 0.10-0.14). However, the penalties were similar between classes (p > .05; ES = 0.07-0.14). The odds ratio of a winning medal was 3.5-8 times less in blind athletes than in partially sighted athletes (p < .01). In conclusion, blind judo athletes presented lower competitive and technical-tactical performance than athletes with some residual functional vision. These findings provide support for the development of new evidence-based criteria for judo classification based on vision impairment.
KW - combat sport
KW - Paralympic sport
KW - technical analysis
KW - visual impairment
UR - http://www.scopus.com/inward/record.url?scp=85069888719&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85069888719&partnerID=8YFLogxK
U2 - 10.1123/apaq.2018-0181
DO - 10.1123/apaq.2018-0181
M3 - Article
VL - 36
SP - 388
EP - 398
JO - Adapted physical activity quarterly : APAQ
JF - Adapted physical activity quarterly : APAQ
SN - 1543-2777
IS - 3
ER -