The capturing of movements by means of wearable sensors has become increasingly popular in order to obtain sport performance measures during training or competition. The purpose of the current study was to investigate the feasibility of using body worn accelerometers to identify previous highlighted performance related biomechanical changes in terms of substantial differences across skill levels and skating phases. Twenty-two ice hockey players of different caliber were equipped with two 3D accelerometers, located on the skate and the waist, as they performed 30 m forward skating sprints on an ice rink. Two measures of the temporal stride characteristics (contact time and stride time) and one measure of the propulsive power (stride propulsion) of a skating stride were calculated and checked for discriminating effects across (i) skill levels and (ii) sprint phases as well as for their (iii) strength of association with the sprint performance (total sprint time). High caliber players showed an increased stride propulsion (+22%, <0.05) and shorter contact time (-5%, <0.05). All three analysed variables highlighted substantial biomechanical differences between the accelerative and constant velocity phases (< 0.05). Stride propulsion of acceleration strides primarily correlated to total sprint time (= -0.57, < 0.05). The results demonstrate the potential of accelerometers to assess skating technique elements such as contact time or elements characterizing the propulsive power such as center of mass acceleration, to gauge skating performance. Thus, the findings of this study might contribute to establishing wearable sensors for in-field ice hockey skating performance analysis.
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http://dx.doi.org/10.1080/17461391.2018.1563634 | DOI Listing |
Otolaryngol Head Neck Surg
January 2025
Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
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View Article and Find Full Text PDFSports Med Open
January 2025
Department of Health, Nutrition, and Food Sciences, Florida State University, Tallahassee, FL, USA.
Background: Little is known about the lower extremity muscle co-contraction patterns during sprinting and its relation to running velocity (i.e., performance).
View Article and Find Full Text PDFAm J Sports Med
January 2025
Commons Clinic, Long Beach, California, USA.
Background: Orthopaedic surgeons play a critical role in ensuring the health and safety of professional athletes. Despite the privilege of treating elite athletes, there exists great financial exposure to individual physicians in the event of a malpractice lawsuit.
Hypothesis/purpose: The purpose of this study was to evaluate and model malpractice liability exposure of the sports medicine surgeon caring for athletes in the National Football League (NFL), Major League Baseball (MLB), and National Hockey League (NHL) with respect to player position and additional supplemental malpractice insurance needs.
Children (Basel)
December 2024
Department of Physical Activity and Sport, Faculty of Sport Sciences, CEIR Campus Mare Nostrum (CMN), University of Murcia, 30720 Murcia, Spain.
Background: Low back pain is one of the most common musculoskeletal complaints in team sports. A screening test can help understand why injuries occur and predict who is at risk for non-contact low back pain. The objectives of the research were (1) to create models using logistic regression analysis of limited lower-extremity ranges of motion to prospectively identify potential factors for in-season non-contact non-contact low back pain and (2) to determine a training threshold (cut-off) for the identified factors in inline hockey players.
View Article and Find Full Text PDFFront Cardiovasc Med
December 2024
Department of Cardiology and Internal Intensive Care Medicine, Heart Center Munich-Bogenhausen Munich Municipal Hospital Group, Munich, Germany.
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