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Hip-abductor fatigue influences sagittal plane ankle kinematics and shank muscle activity during a single-leg forward jump.
Journal article

Hip-abductor fatigue influences sagittal plane ankle kinematics and shank muscle activity during a single-leg forward jump.

  • Gafner SC Department of Physiotherapy, HES-SO// University of Applied Sciences and Arts of Western Switzerland, Geneva, Switzerland. Electronic address: simone.gafner@hesge.ch.
  • Hoevel V Department of Health Professions, Bern University of Applied Sciences, Bern, Switzerland.
  • Punt IM Department of Physiotherapy, HES-SO// University of Applied Sciences and Arts of Western Switzerland, Geneva, Switzerland; Department of Epidemiology, CAPHRI, Maastricht University, Maastricht, the Netherlands.
  • Schmid S Department of Health Professions, Bern University of Applied Sciences, Bern, Switzerland.
  • Armand S Willy Taillard Laboratory of Kinesiology, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.
  • Allet L Department of Physiotherapy, HES-SO// University of Applied Sciences and Arts of Western Switzerland, Geneva, Switzerland; Department of Community Medicine, Medical Faculty, University Hospitals and University of Geneva, Geneva, Switzerland.
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  • 2018-09-23
Published in:
  • Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology. - 2018
Biomechanics
Electromyography
Landing
Lower extremity
Sport injury
Adult
Ankle Joint
Biomechanical Phenomena
Female
Hip Joint
Humans
Leg
Male
Muscle Fatigue
Muscle, Skeletal
Postural Balance
Young Adult
English Diminished hip abductor strength decreases postural control which is a parameter that is associated with an increased risk of ankle sprains. In our study we evaluated the influence of hip abductor fatigue on sagittal plane ankle kinematics and shank muscle activity during a single-leg forward jump. Sagittal ankle plane kinematics are important in ankle sprains but less studied than frontal plane kinematics. Therefore, we evaluated differences in sagittal ankle kinematics (12-camera motion capture system) and lower limb surface electromyographic muscle activity in 20 healthy, recreationally active adults (9 females, 11 males, mean age 30.3 SD 4.0 years, mean BMI 23.6 SD 2.8 kg/m2) before and after a hip abductor fatigue protocol (200-ms prior, at and in the 250-ms following initial contact (IC)). After fatigue, the maximal ankle plantar-flexion angle decreased prior to IC (median 3.8° [interquartile range 0.1, 7.2], p = 0.014), at IC (4.1° [-0.3, 5.0], p = 0.027) and post IC (4.1° [-1.3, 5.0] p = 0.036). Gastrocnemius activity onset was delayed (-28.0 ms [-44.0, 0.0], p < 0.01). Average activity of the tibialis anterior increased prior to IC (pre-fatigue 19.32% [14.89, 33.45], post-fatigue 28.95% [18.49, 34.81], p < 0.05). Hip-abductor fatigue influenced sagittal ankle kinematics and shank muscle activity during single-leg landings.
Language
  • English
Open access status
hybrid
Identifiers
Persistent URL
https://sonar.ch/global/documents/46662
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