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Full-Text Articles in Medicine and Health Sciences
Calcium Pyrophosphate Deposition Disease In The Achilles Tendon, Kai-Yu Ho, Jing Nong Liang
Calcium Pyrophosphate Deposition Disease In The Achilles Tendon, Kai-Yu Ho, Jing Nong Liang
Physical Therapy Faculty Publications
The classic sonographic presentation of calcium pyrophosphate dihydrate crystal deposits in the Achilles tendon is reported.
Characteristics Of Medial-Lateral Postural Control While Exposed To The External Perturbation In Step Initiation, Yun-Ju Lee, Jing Nong Liang, Bing Chen, Alexander S. Aruin
Characteristics Of Medial-Lateral Postural Control While Exposed To The External Perturbation In Step Initiation, Yun-Ju Lee, Jing Nong Liang, Bing Chen, Alexander S. Aruin
Physical Therapy Faculty Publications
Controllability of posture in the medial-lateral direction is critical for balance maintenance, particularly in step initiation. The objective of the current study was to examine the effects of external perturbation and landing orientation on medial-lateral control stability in step initiation. Eleven young healthy participants stood on the force platform and waited for the instruction of taking a step while experiencing a pendulum perturbation applied at the lateral side of the right shoulder. Eight experimental conditions were conducted by two levels of step side (right or left), two levels of perturbation (with or without), and two levels of landing orientation (forward …
Patellar Tendon Morphology In Trans-Tibial Amputees Utilizing A Prosthesis With A Patellar-Tendon- Bearing Feature, Kai-Yu Ho, Michelle Harty, Jessica Kellogg, Kelly Teter, Szu-Ping Lee, Yu-Jen Chang, Gregory Bashford
Patellar Tendon Morphology In Trans-Tibial Amputees Utilizing A Prosthesis With A Patellar-Tendon- Bearing Feature, Kai-Yu Ho, Michelle Harty, Jessica Kellogg, Kelly Teter, Szu-Ping Lee, Yu-Jen Chang, Gregory Bashford
Physical Therapy Faculty Publications
A patellar-tendon-bearing (PTB) bar is a common design feature used in the socket of trans-tibial prostheses to place load on the pressure-tolerant tissue. As the patellar tendon in the residual limb is subjected to the perpendicular compressive force not commonly experienced in normal tendons, it is possible for tendon degeneration to occur over time. The purpose of this study was to compare patellar tendon morphology and neovascularity between the residual and intact limbs in trans-tibial amputees and healthy controls. Fifteen unilateral trans-tibial amputees who utilized a prosthesis with a PTB feature and 15 age- and sex- matched controls participated. Sonography …
Impaired H-Reflex Adaptations Following Slope Walking In Individuals With Post-Stroke Hemiparesis, Jing Nong Liang, Yun Ju Lee, Eric Akoopie, Brooke Conway Kleven, Trisha Koch, Kai-Yu Ho
Impaired H-Reflex Adaptations Following Slope Walking In Individuals With Post-Stroke Hemiparesis, Jing Nong Liang, Yun Ju Lee, Eric Akoopie, Brooke Conway Kleven, Trisha Koch, Kai-Yu Ho
Physical Therapy Faculty Publications
Background and Purpose: Short term adaptations in the Ia afferent-motoneuron pathway, as measured using the H-reflex, in response to altered ground reaction forces (GRFs) applied at the feet during slope walking have been observed in the non-impaired nervous system. The ability of the stroke-impaired nervous system to adapt to altered GRFs have not been examined. The purpose of this study was to examine the acute effects of altered propulsive and braking forces applied at the feet, which naturally occurs when walking on different slopes, on adaptations of the H-reflex pathway in individuals with chronic post-stroke hemiparesis.
Factors Related To Intra-Tendinous Morphology Of Achilles Tendon In Runners, Kai-Yu Ho, Ari Baquet, Yu-Jen Chang, Lung-Chan Chien, Michelle Harty, Gregory Bashford, Kornelia Kulig
Factors Related To Intra-Tendinous Morphology Of Achilles Tendon In Runners, Kai-Yu Ho, Ari Baquet, Yu-Jen Chang, Lung-Chan Chien, Michelle Harty, Gregory Bashford, Kornelia Kulig
Physical Therapy Faculty Publications
The purpose of this study was to determine and explore factors (age, sex, anthropometry, running and injury/pain history, tendon gross morphology, neovascularization, ankle range of motion, and ankle plantarflexor muscle endurance) related to intra-tendinous morphological alterations of the Achilles tendon in runners. An intra-tendinous morphological change was defined as collagen fiber disorganization detected by a low peak spatial frequency radius (PSFR) obtained from spatial frequency analysis (SFA) techniques in sonography. Ninety-one runners (53 males and 38 females; 37.9 ± 11.6 years) with 8.8 ± 7.3 years of running experience participated. Height, weight, and waist and hip circumferences were recorded. Participants …