Abstract
2/2013
vol. 30
Original paper
JUMP LANDING CHARACTERISTICS IN ELITE
SOCCER PLAYERS WITH CEREBRAL PALSY
Biol. Sport 2013;30:91-95
Online publish date: 2014/07/22
The aim of the present study was to analyse the parameters that characterize the vertical ground
reaction force during the landing phase of a jump, and to determine the relationship among these parameters
in elite soccer players with cerebral palsy (CP). Thirteen male members of the Spanish national soccer team for
people with CP (mean age: 27.1 ± 4.7 years) volunteered for the study. Each participant performed three counter
movement jumps. The characteristics of the first peak of the vertical ground reaction force during the landing
phase of a jump, which corresponds to the forefoot contact with the ground, were similar to the results obtained
in previous studies. However, a higher magnitude of rearfoot contact with the ground (F2) was observed in
participants with CP than in participants without CP Furthermore, a significant correlation between F2 magnitude
.
and the elapsed time until its production (T2) was not observed (r = -0.474 for p = 0.102). This result implies
that a landing technique based on a delay in the production of F2 might not be effective to reduce its magnitude,
contrary to what has been observed in participants without CP The absence of a significant correlation between
.
these two parameters in the present study, and the high magnitude of F2, suggest that elite soccer players with
CP should use footwear with proper cushioning characteristics.
reaction force during the landing phase of a jump, and to determine the relationship among these parameters
in elite soccer players with cerebral palsy (CP). Thirteen male members of the Spanish national soccer team for
people with CP (mean age: 27.1 ± 4.7 years) volunteered for the study. Each participant performed three counter
movement jumps. The characteristics of the first peak of the vertical ground reaction force during the landing
phase of a jump, which corresponds to the forefoot contact with the ground, were similar to the results obtained
in previous studies. However, a higher magnitude of rearfoot contact with the ground (F2) was observed in
participants with CP than in participants without CP Furthermore, a significant correlation between F2 magnitude
.
and the elapsed time until its production (T2) was not observed (r = -0.474 for p = 0.102). This result implies
that a landing technique based on a delay in the production of F2 might not be effective to reduce its magnitude,
contrary to what has been observed in participants without CP The absence of a significant correlation between
.
these two parameters in the present study, and the high magnitude of F2, suggest that elite soccer players with
CP should use footwear with proper cushioning characteristics.
Keywords
counter movement jump, injury, vertical ground reaction force
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