Akademik Veri Yönetim Sistemi
European Society for Movement Analysis in Adults and Children – ESMAC, Oslo, Norveç, 9 - 11 Eylül 2024, cilt.113, sa.1, ss.2, (Özet Bildiri)
Introduction
Increased hip adduction at stance is a risk factor for musculoskeletal injuries in athletes during running [1,2]. It has been reported that joint hypermobility, which is common in adolescents, can decrease muscle strength and may impact movement mechanics [3]. However, its effects on pelvis and hip frontal plane running mechanics are not yet clear. The aim of the study is to examine the effects of joint hypermobility on frontal plane hip stability.Research Question
How does joint hypermobility affect biomechanics of the frontal plane lower extremity during running?Methods
This study is a prospective observational study. Thirteen healthy adolescent participants (fe/male: 8/5, mean age: 16.8±1.5 years) are examined by dividing into two groups: 1) those with joint hypermobility (fe/male:5/1, mean age:17.3±1.3 years) and 2) non-hypermobility (fe/male:3/4, mean age:16.4±1.6 years) individuals. Joint hypermobility was determined by Beighton's test [4] and a lower extremity hypermobility test [5]. All participants underwent 3D running analysis at a slow (Srun), moderate (Mrun), and fast (Frun) speeds. Running analysis performed in the laboratory environment. The kinematics and kinetics are calculated for peak values of hip, knee, and ankle in the frontal plane.Results
Independent samples t-test show that no significant differences were found within speeds of slow, medium and fast runnings (between hypermobility and non-hypermobility groups p=0.38, p=0.26, p=0.25 respectively). The peak hip adduction angle and peak hip adduction moment of the hypermobility group was higher than the non-hypermobility group at all running speeds. The ipsilateral pelvis elevation angle in the stance phase was higher in hypermobile participants at all three running speeds (Table-1).
Discussion
Hypermobile participants attaining higher peak adduction angle, and higher peak hip adduction moment at stance phase may be due to inefficient joint stability. Those results showed that joint hypermobility may be one of the factors that increase susceptibility to running injuries by increasing hip adduction in stance. Future studies needed to investigate the effect of joint hypermobility on running injuries.References
1. Liu J, et al. Med Sci Sports Exerc. 2021 1;53(11):2346-2353.2. Mucha MD, et al. J Sci Med Sport. 2017 20(4):349-355. 3 (4):590-597.3. Jindal P, et al. BMC Sports Sci Med Rehabil. 2016 Apr 25;8:12.4. Smits-Engelsman B, et al. J Pediatr. 2011 158(1):119-23.5. Ferrari J,et al. Clin Exp Rheumatol. 2005 May-Jun;23(3):413-20.