2026-10-13T15:15:39Z https://data.mendeley.com/oai

oai:data.mendeley.com/8rrv3ytd82.1 2026-03-18T07:19:54Z

黄, 小凡 DFIS to Tibiofemoral joint Mendeley Data Title: In vivo tibiofemoral joint kinematics under trunk loading during walking and running Overview​ This dataset presents biomechanical data quantifying the effects of additional trunk loading (20% body weight)​ on in vivo tibiofemoral joint kinematics​ during walking (3.6 km/h) and running (10.8 km/h) in healthy adults. The study combined dual fluoroscopic imaging system (DFIS)​ and MRI-based 3D bone modeling​ to achieve sub-millimeter accuracy in joint motion tracking. Key Features​ Data Acquisition: Participants: 26 healthy adults (13 males, 13 females; age: 24.3 ± 2.8 years; BMI: 22.1 ± 1.8 kg/m²). Equipment: MRI: 3.0T Siemens scanner (1mm isotropic resolution, T1-weighted sequences). DFIS: High-speed biplane X-ray system (100 fps, 1024×1024 pixels, 60 kVp/63 mA/1ms exposure). Protocol: Repeated-measures design with four conditions: Walking/Running under non-weight-bearing (NWB)​ and loaded (WB +20% BW)​ conditions. Data Content: Kinematic Parameters: Six degrees-of-freedom (6DOF) tibiofemoral joint motion, including: Sagittal plane: Flexion-extension angles. Frontal plane: Internal/external rotation angles. Transverse plane: Adduction/abduction angles. 3D Translations: Anterior-posterior, medial-lateral, and superior-inferior displacements. Critical Timepoints: Peak kinematics at heel strike​ and mid-stance​ phases. Statistical Analysis: Two-way repeated-measures ANOVA (speed × loading) with effect size (partial η²) and reliability (ICC). Example findings: Flexion angles: Significantly increased under WB during running (peak: 24.3° ± 10.8°, p< 0.01). Internal rotation: WB amplified internal rotation during running (peak: -7.5° ± 8.1°, p< 0.001). Posterior translation: WB + running increased posterior displacement (-4.6 mm ± 4.4 mm, p< 0.001). Data Storage: Raw Data: DICOM MRI images, DFIS video files, and 3D bone models (stored on institutional servers; DOI pending). Code/Tools: MATLAB scripts for 2D-3D registration, SPSS code for statistical analysis. Ethics: Approved by Shanghai University of Sport Ethics Committee (pending approval number). Sport Medicine Associated with Travel Medicine Biomechanics of Motion Dataset doi:10.17632/8rrv3ytd82.1 oai:data.mendeley.com/8rrv3ytd82.1 Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0 https://data.mendeley.com/datasets/8rrv3ytd82 2026-03-18T07:19:54Z