[article] in Journal of Orthopaedic & Sports Physical Therapy > vol. 49, 11 (Novembre 2019) . - p. 779-786 Titre : | Women and Men Use Different Strategies to Stabilize the Head in Response to Impulsive Loads: Implications for Concussion Injury Risk | Type de document : | article de périodique | Auteurs : | Bara Alsalaheen, Auteur ; [et al.], Auteur | Année de publication : | 2019 | Article en page(s) : | p. 779-786 | Langues : | Français (fre) | Descripteurs (mots clés) : | [Thésaurus Mesh]Cou [Thésaurus Mesh]Traumatismes du cou
| Résumé : | Background
Cervical musculoskeletal and neuromuscular attributes, which may vary between men and women, influence an individual's capacity to stabilize the head.
Objectives
To examine sex differences in cervical musculoskeletal and neuromuscular attributes and their impact on head stability. The secondary objective was to examine the effects of anticipation and preload on head kinematics.
Methods
Thirty-four (20 men, 14 women) recreationally active adult athletes completed a perturbation protocol with anticipation and preloading conditions in this descriptive cross-sectional study. We assessed the neuromuscular response of the sternocleidomastoid to perturbation and head kinematics. We measured neck girth, sternocleidomastoid physiological cross-sectional area, and isometric strength.
Results
Women had smaller neck girth, smaller sternocleidomastoid physiological cross-sectional area, and lower isometric strength than men. Women had greater baseline electromyography (EMG) amplitude and greater peak EMG response than men. There were no sex differences in sternocleidomastoid onset latency or head kinematics. Women had a greater increase in baseline EMG amplitude after preloading and anticipated conditions. Preloading attenuated sex differences in muscle onset latency. Across the sexes, there was a significant main effect of anticipation on head kinematics.
Conclusion
Men and women used different strategies to stabilize the head, and responded differently to the preloading and anticipation conditions. | Permalink : | https://bibliotheque.helb-prigogine.be/opac_css/index.php?lvl=notice_display&id= |
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