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Risk factors for patellar tendinopathy in competitve volleyball players

Roel De Ridder UGent, Nele Mahieu UGent, Ann Cools UGent and Philip Roosen UGent (2011) Volleyball medicine congress, Abstracts.
abstract
Background: Patellar tendindopathy (PT) is an important problem in a volleyball population. However, in order to optimize rehabilitation and prevention strategies, not all intrinsic risk factors are known. This study is the first study that takes the hip strength into account. Objective: The objective is to identify some intrinsic risk factors of the lower limb for the development of patellar tendinopathy in competitive volleyball players. Design: retrospective Setting: Eight male national volleyball teams participated in this study. Risk factors were assessed at the beginning of the season 2009-2010. By means of questionnaires, the participants injury history was documented. Participants: A total of 71 male players (25.1 ± 4.5 years) were included. Players with a history of surgery and pain on the moment of testing were excluded. Assessment of Risk Factors: Muscle strength, muscle length and landing strategies were assessed. Main Outcome Measurements: The strength of the hip muscles was measured with a hand-held dynamometer. Muscle length of gastrocnemius, soleus, hamstrings and quadriceps was determined by means of a plurimeter. A 2D video analyses was made of a vertical jump. Knee flexion angle, Q-angle and Ankle dorsiflexion angle during the landing were calculated. Results: The players with a history of PT (> 6 months ago) displayed a significant greater ankle dorsiflexion ROM , a significant lower hip flexion strength and a significant shorter quadriceps. A logistic regression model indicated that a greater ankle dorsiflexion ROM and a lower hip flexion strength are predictors for occurrence of PT. Conclusions: It can be concluded that a greater dorsiflexion ankle during landing and a lower hip flexion strength are associated with the occurrence of a PT. Future prospective studies should include, not only the knee, but also the hip and the ankle in their assessment.
Please use this url to cite or link to this publication:
author
organization
year
type
conference
publication status
published
subject
in
Volleyball medicine congress, Abstracts
conference name
Volleyball Medicine Congress (FIVB - 2011)
conference location
Bled, Slovenia
conference start
2011-01-13
conference end
2011-01-15
language
English
UGent publication?
yes
classification
C3
id
1132014
handle
http://hdl.handle.net/1854/LU-1132014
date created
2011-02-04 11:46:13
date last changed
2011-06-24 11:00:13
@inproceedings{1132014,
  abstract     = {Background: Patellar tendindopathy (PT) is an important problem in a volleyball population. However, in order to optimize rehabilitation and prevention strategies, not all intrinsic risk factors are known. This study is the first study that takes the hip strength into account. Objective: The objective is to identify some intrinsic risk factors of the lower limb for the development of patellar tendinopathy in competitive volleyball players. Design: retrospective Setting: Eight male national volleyball teams participated in this study. Risk factors were assessed  at the beginning of the season 2009-2010. By means of questionnaires, the participants injury history was documented. Participants: A total of 71 male players (25.1 {\textpm} 4.5 years) were included. Players with a history of surgery and pain on the moment of testing were excluded. Assessment of Risk Factors: Muscle strength, muscle length and landing strategies were assessed. Main Outcome Measurements: The strength of the hip muscles was measured with a hand-held dynamometer. Muscle length of gastrocnemius, soleus, hamstrings and quadriceps was determined by means of a plurimeter. A 2D video analyses was made of a vertical jump. Knee flexion angle, Q-angle and Ankle dorsiflexion angle during the landing were calculated. Results: The players with a history of PT ({\textrangle} 6 months ago) displayed a significant greater ankle dorsiflexion ROM , a significant lower hip flexion strength  and a significant shorter quadriceps. A logistic regression model indicated that a greater ankle dorsiflexion ROM  and a lower hip flexion strength are predictors for occurrence of PT. Conclusions:  It can be concluded that a greater dorsiflexion ankle during landing and a lower hip flexion strength are associated with the occurrence of a PT. Future prospective studies should include, not only the knee, but also the hip and the ankle in their assessment.},
  author       = {De Ridder, Roel and Mahieu, Nele and Cools, Ann and Roosen, Philip},
  booktitle    = {Volleyball medicine congress, Abstracts},
  language     = {eng},
  location     = {Bled, Slovenia},
  title        = {Risk factors for patellar tendinopathy in competitve volleyball players},
  year         = {2011},
}

Chicago
De Ridder, Roel, Nele Mahieu, Ann Cools, and Philip Roosen. 2011. “Risk Factors for Patellar Tendinopathy in Competitve Volleyball Players.” In Volleyball Medicine Congress, Abstracts.
APA
De Ridder, Roel, Mahieu, N., Cools, A., & Roosen, P. (2011). Risk factors for patellar tendinopathy in competitve volleyball players. Volleyball medicine congress, Abstracts. Presented at the Volleyball Medicine Congress (FIVB - 2011).
Vancouver
1.
De Ridder R, Mahieu N, Cools A, Roosen P. Risk factors for patellar tendinopathy in competitve volleyball players. Volleyball medicine congress, Abstracts. 2011.
MLA
De Ridder, Roel, Nele Mahieu, Ann Cools, et al. “Risk Factors for Patellar Tendinopathy in Competitve Volleyball Players.” Volleyball Medicine Congress, Abstracts. 2011. Print.