Effect of Core Muscles Fatigue on Landing Mechanic and Lower Extremity Function

Document Type : Original article

Authors

1 Ph.D of Sport Injuries and Corrective Exercises, Department of Sport Injuries and Corrective Exercises, Razi University, Kermanshah, Iran

2 MSc of Sport Injuries and Corrective Exercises, Department of Sport Injuries and Corrective Exercises, Razi University, Kermanshah, Iran

Abstract

Background and Aim: The purpose of the present study was to investigate the effect of core muscles’ fatigue on landing mechanic and lower extremity function.
Materials and Methods: In the present semi-experimental study, 18 female students were randomly selected from among the students at Razi University. First, pretests were administered. Y-test was used to measure dynamic balance, square & lateral hop tests was used to measure lower extremity function, and weight bearing dorsiflexion ROM and Landing Error Scoring System-Real Time as well as Kinova and AutoCAD Software were used to assess landing mechanic. After the pretest, we perfromed core muscles fatigue protocol and then the posttest was conducted. For data analysis, K-S and Levine’s test and paired sample t-test were run. The statistical significance was set at 0.05.
Results: The results showed that after core muscles fatigue, among studied factors, landing error scores (P=0.001), weight bearing dorsiflexion ROM (P=0.002), dynamic balance (P=0.02), and knee flexion angle (P=0.03) decreased in contact time.
Discussion: According to the results, it can be stated that the core muscles fatigue that accrues in sports competitions could result in the prevalence of lower extremity injuries. So, core strengthening protocol can be effective in preventing injuries in the lower extremity.

Keywords

Main Subjects


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Volume 7, Issue 4
January and February 2019
Pages 30-40
  • Receive Date: 09 November 2017
  • Revise Date: 07 February 2018
  • Accept Date: 27 February 2018
  • First Publish Date: 22 December 2018