Document Type : Research Paper
Authors
1 Msc
2 Assistant professor in Sport Sciences Research Institute of IRAN; PhD of Sport Injuries & Corrective Exercises
3 PhD
Abstract
The purpose of this research is to investigate the relationship between sleep disorder and landing kinematics, balance and proprioception of the lower limb in men with a history of ACL reconstruction and dynamic knee valgus. 44 men with history of a ACL reconstruction and dynamic knee valgus were selected as a statistical sample.
The results of the study showed that sleep disturbance had a significant linear relationship with landing kinematics, balance and proprioception. Significant difference between sleep disorder with landing kinematics (P<0.05), balance (P<0.05), knee joint proprioception restoration for 30 degree angle (P<0.05) and knee proprioception restoration for 60 degree angle (P <0.05). The result of the present study showed that sleep disorder can predict the increase of landing kinematic error, the increase of proprioception error of 30 and 60 degrees of the knee joint, which has a direct and positive linear relationship, and sleep disorder can predict the loss of balance, which has a direct and negative linear relationship, that has a negative effect on men with a history of ACL reconstruction and dynamic knee valgus. Therefore, according to the results of the research that states sleep disorder as a risk factor in people with a history of ACL reconstruction, it is suggested to the coaches to evaluate and control the sleep patterns of the athletes in order to determine the amount of possible damage caused by the disorder or deprivation of sleep.
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