Advanced search    

Search: authors:"Chih-Han Chang"

6 papers found.
Use AND, OR, NOT, +word, -word, "long phrase", (parentheses) to fine-tune your search.

Molecular phylogeny and systematics of native North American lumbricid earthworms (Clitellata: Megadrili)

manuscript. Data curation: Csaba Csuzdi, Chih-Han Chang. Formal analysis: Chih-Han Chang. Funding acquisition: Csaba Csuzdi, Katalin SzlaÂvecz. 31 / 36 Investigation: Csaba Csuzdi, Chih-Han Chang, David ... Esopi. Methodology: Csaba Csuzdi, Chih-Han Chang. Resources: Csaba Csuzdi, Chih-Han Chang, TomaÂs PavlÂõcek, TÂõmea Szederjesi, Katalin SzlaÂvecz. Visualization: Csaba Csuzdi, Chih-Han Chang. Writing

Biomechanical evaluation of a novel wheelchair backrest for elderly people

Background Back pain is a common complication of wheelchair-bound elderly people. Seating system is a key factor that influences spinal curvature, back muscle activation, interface pressure, and comfortability. A seating system can maintain lumbar lordosis, lower back muscle activity, and decrease ischial tuberosities pressure, which reduces spinal load and directly influences ...

The Effects of Backward Adjustable Thoracic Support in Wheelchair on Spinal Curvature and Back Muscle Activation for Elderly People

Objectives To investigate the effects of backward adjustable thoracic support on spinal curvature and back muscle activation during wheelchair sitting. Methods Twenty elderly people were recruited for this study. The backward adjustable thoracic support sitting posture was compared with the slumped, normal, and lumbar support sitting postures. Spinal curvatures (pelvic, lumbar, and ...

Predicting the holistic force-displacement relation of the periodontal ligament: in-vitro experiments and finite element analysis

Background The biomechanical property of the periodontal ligament (PDL) is important in orthodontics and prosthodontics. The objective of this study was to evaluate the feasibility of measuring the biomechanical behavior of the periodontal ligament using micro-computed tomography (micro-CT). Methods A custom-made apparatus measured the force and displacement of a porcine PDL ...

The Time Window for Therapy with Peptide Nanofibers Combined with Autologous Bone Marrow Cells in Pigs after Acute Myocardial Infarction

Background We previously showed that injection of peptide nanofibers (NF) combined with autologous bone marrow mononuclear cells (MNC) immediately after coronary artery ligation improves cardiac performance in pigs. To evaluate the clinical feasibility, this study was performed to determine the therapeutic time window for NF/MNC therapy in acute myocardial infarction (MI). Methods ...