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Objectives: The purpose of this study was to assess the reliability of a series of lateral hops for both performance and lower extremity kinematics.
Design: Between-session reliability study.
Setting: University Laboratory.
Participants: 20 subjects (11 male, 9 females) 25.14 ± 2.77 years, 72.97 ± 9.73 kg, and 169.44 ± 7.23 cm.
Main Outcome Measures: Participants completed four lateral hops, altering their takeoff and landing legs. We quantified hop distance and 2-dimensional frontal and sagittal plane kinematics at peak knee flexion. Testing was performed on two occasions, with a mean difference of 7 days apart. Interclass correlation coefficients and paired t-tests were performed to compare reliability and differences in outcome measures across the two sessions, p < .05.
Results: All four lateral hops had good to excellent reliability (ICC 0.84-0.91), with no statistical difference in hop distance between days, p > .05. Sagittal plane kinematics had good to excellent reliability (ICC 0.86-0.95) however frontal plane kinematics showed moderated to good reliability (ICC 0.54-0.90).
Conclusion: A battery of lateral hopping tasks has moderate to excellent reliability for both performance and kinematics, suggesting their use by clinicians and in clinical practice.
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http://dx.doi.org/10.1016/j.ptsp.2025.08.006 | DOI Listing |
J Prosthet Dent
September 2025
Full Professor, School of Mechanical Engineering, Universidad Industrial de Santander, Bucaramanga, Colombia. Electronic address:
Statement Of Problem: Although custom temporomandibular joint (TMJ) prostheses manufactured via computer-aided design and manufacturing (CAD-CAM) and produced through 3-dimensional (3D) printing or computer numerical control (CNC) allow for sagittal curvature adjustments in the glenoid fossa, their design remains unregulated by the Food and Drug Administration. Consequently, the geometry is determined largely by the engineer's discretion, with limited biomechanical evidence to guide these decisions. The lack of validation regarding how sagittal curvature influences joint stress distribution under various anatomical and functional conditions represents a gap in current knowledge that warrants investigation.
View Article and Find Full Text PDFCurr Sports Med Rep
September 2025
Uniformed Services University, National Capital Consortium Military Sports Medicine Fellowship, Alexander T. Augusta Military Medical Center, Fort Belvoir, VA.
Patellofemoral pain syndrome is a common cause of anterior knee pain. It has a prevalence of 22.7% in the general population and tends to affect females more than males.
View Article and Find Full Text PDFBMC Oral Health
September 2025
Department of Oral and Maxillofacial Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany.
Background: A modified pull-through approach represents a promising treatment strategy to access tumors in the posterior oral cavity. The design of the wedge osteotomy plays a key role in preserving postoperative mechanical stability while enabling surgical access. However, the optimal osteotomy design to reduce fracture risk remains unclear.
View Article and Find Full Text PDFJ Foot Ankle Res
September 2025
Sports Medicine and Rehabilitation Center, Shanghai University of Sport, Shanghai, China.
Objective: This study aims to investigate whether alterations in the lower extremity kinematics, kinetics, and muscle activity of individuals with chronic ankle instability (CAI) occur during landing with expected and unexpected inversion perturbations.
Methodology: PubMed, Embase, Cochrane Library, Web of Science, and Scopus databases were searched for relevant studies up to November 30, 2024. Comparative studies investigating the characteristics of lower extremity kinematics, kinetics, and muscle activity in individuals with CAI compared with healthy controls were included.
Ann Biomed Eng
September 2025
Department of Training and Movement Sciences, Humboldt-Universität zu Berlin, Philippstr. 13, Haus 11, 10115, Berlin, Germany.
The functional interaction of regulatory mechanisms that manage total centre of mass (CoM) energy, frontal plane whole-body angular momentum and mediolateral margin of stability (MoS) during hole negotiation gait was investigated. Joint kinematics, leg posture, total CoM energy, frontal plane whole-body angular momentum, mediolateral MoS and muscle activation patterns of seven bilateral lower leg muscles were assessed in 18 participants. During hole negotiation, we found an increase in the peak-to-peak range of total CoM energy and frontal plane whole-body angular momentum during the preparation, hole and recovery steps, and a decrease in mediolateral MoS at touch-down during the preparation and hole steps compared to level walking, providing evidence of an increased challenge in stability control.
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