The gait pattern is not impaired in subjects with external snapping hip: a comparative cross-sectional study

BMC Musculoskeletal Disorders

Michael Ulrich²  Kjeld Søballe¹  Ole Simonsen²  Michael S Rathleff⁴  Uwe G Kersting⁵  Julie S Jacobsen³ 

[1]Department of Orthopaedic Research, Aarhus University Hospital, Tage-Hansens Gade 2, 8000, Aarhus C, Denmark

[2]Department of Orthopaedic Surgery, Aalborg University Hospital, Hobrovej 18-22, 9100, Aalborg, Denmark

[3]Department of Physiotherapy and Occupational Therapy, Aarhus University Hospital, Tage-Hansens Gade 2, 8000, Aarhus C, Denmark

[4]Orthopaedic Surgery Research Unit, Aalborg University Hospital, Hobrovej 18-22, 9100, Aalborg, Denmark

[5]Center for Sensory-Motor Interaction, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7 D3, 9220, Aalborg, Denmark

关键词: EMG;    Electromyography;    Walking;    Healthy subjects;    Trochantor pain;    Iliotibial band;   

Others  :  1130279
DOI  :  10.1186/1471-2474-14-212

 received in 2012-12-03, accepted in 2013-07-05,  发布年份 2013

【 摘 要 】

Background

Symptomatic external snapping hip is a painful condition, where pain in the trochantor region and limitations of daily activity dominate clinical findings. The aetiology of symptomatic external snapping hip is elusive, but previous studies have suggested that weakness of the hip abductors and an altered walking pattern may play a role in the development of symptomatic external snapping hip. The aim of this study was to compare the walking pattern and muscular activity of the hip muscles between subjects with symptomatic external snapping hip and healthy subjects.

Methods

Thirteen subjects with diagnosed symptomatic external snapping hip (age: 25.5 years) were matched with 13 healthy subjects (age: 25.6 years). Joint kinematics and kinetics of the lower extremity were quantified by the peak hip adduction angle; the average knee rotation range of motion (ROM) and the peak valgus knee angle after data recording using a Vicon 612 motion capture system. Muscle activity was recorded bilaterally using surface electromyography (sEMG) on five muscles: gluteus maximus, gluteus medius, tensor fascia latae, rectus femoris and biceps femoris. A paired t-test was used to evaluate differences between the two groups.

Results

No significant differences were found between the groups concerning the peak hip adduction angle, the average knee rotation ROM, and the static valgus knee angle. No significant between-group differences were found concerning all other kinematics, kinetics or muscle activity. In subjects with symptomatic external snapping hip activity of the gluteus medius muscle during the acceptance phase of walking was 0.58 ± 0.19 whereas the activity was 0.68±0.07 in the asymptomatic group (p=0.115).

Conclusions

No significant differences in the walking pattern were found between subjects with symptomatic external snapping hip and healthy subjects. This suggest that subjects with symptomatic external snapping hip does not have an impaired gait pattern.

【 授权许可】

   
2013 Jacobsen et al.; licensee BioMed Central Ltd.

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