The innovative cycling ergometer is a reliable tool to assess NMF during and immediately postexercise. This will allow fatigue etiology during dynamic exercise with large muscle mass to be revisited in various populations and environmental conditions.

Background: Direct oral anticoagulants (DOACs) are rapidly replacing warfarin for therapeutic anticoagulation; however, many DOACs are irreversible and may complicate bleeding in emergent situations such as hip fracture. In this setting, there is a lack of clear guidelines for the timing of surgery. The purpose of this study was to evaluate the current practices of Canadian orthopedic surgeons who manage patients with hip fracture receiving anticoagulation. Methods:In January-March 2018, we administered a purpose-specific cross-sectional survey to all currently practising orthopedic surgeons in Canada who had performed hip fracture surgery in 2017. The survey evaluated approaches to decision-making and timing of surgery in patients with hip fracture receiving anticoagulation.Results: A total of 280 surgeons representing a mix of academic and community practice, seniority and fellowship training responded. Nearly one-quarter of respondents ( 66[23.4%]) were members of the Canadian Orthopaedic Trauma Society (COTS). Almost three-quarters (206 [73.6%]) felt that adequate clinical guidelines for patients with hip fracture receiving anticoagulation did not exist, and 177 (61.9%) indicated that anesthesiology or internal medicine had a greater influence on the timing of surgery than the attending surgeon. A total of 117/273 respondents (42.9%) indicated that patients taking warfarin should have immediate surgery (with or without reversal), compared to 63/270 (23.3%) for patients taking a DOAC (p < 0.001). Members of COTS were more likely than nonmembers to advocate for immediate surgery in all patients (p < 0.05). Conclusion:There is wide variability in Canada in the management of patients with hip fracture receiving anticoagulation. Improved multidisciplinary communication, prospectively evaluated treatment guidelines and focus on knowledge translation may add clarity to this issue. Level of evidence: IV. Contexte :Les anticoagulants oraux directs (AOD) prennent rapidement la place de la warfarine en anticoagulothérapie; or, de nombreux AOD sont irréversibles et peuvent compliquer une hémorragie en cas d'incident comme une fracture de la hanche. Dans ce contexte, il n'y a pas de recommandations claires pour choisir le moment de l'opération. Cette étude avait pour but d'évaluer les pratiques actuelles des chirurgiens orthopédistes canadiens qui traitent des patients avec fracture de la hanche sous anticoagulothérapie.

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