Yu-Jen Chang, PhD

Research Interests

Research Interests

YuJen Chang’s research focuses on how a localized musculoskeletal disorder affects human movement. Specifically, his research explores the effect of a known localized musculoskeletal pathology on tissue mechanics, muscle activation, central nervous system modulation, and whole-body dynamics. Currently he is looking into how movement affect the geometry of the tendon and the architecture of collagen bundles inside the tendon.

Grants and Research

Publications

1. Kulig K, Chang YJ, Ortiz-Weissberg D. A Perspective on Reversibility of Tendinosis-Induced Multi-Level Adaptations. Frontiers in Physiology. 2020;11(651).
2. Sandrey MA, Chang YJ, McCrory JL. The Effect of Fatigue on Leg Muscle Activation and Tibial Acceleration During a Jumping Task. Journal of Sport Rehabilitation, 1-7, 2019 (Online ahead of print)
3. Ho KY, Harty M, Kellogg J, Teter K, Lee SP, Chang YJ, Bashford G. Patellar tendon morphology in trans-tibial amputees utilizing a prosthesis with a patellar-tendon-bearing feature. Scientific Reports, 9:1-7, 2019
4. Ho KY, Baquet A, Chang YJ, Chien LC, Harty M, Bashford G, Kulig K. Factors related to intra-tendinous morphology of Achilles tendon in runners. PLoS One, 14:e0221183, 2019
5. Kulig K, Chang YJ, Winiarski S, Bashford GR. Ultrasound based tendon micromorphology predicts mechanical characteristics of degenerated tendons. Ultrasound in Medicine and Biology, 42:664-673, 2016
6. Chang YJ, Kulig K. The neuromechanical adaptations to Achilles tendinosis. J Physiol, 593:3373-3387, 2015
7. Rowley KM, Jarvis DN, Kurihara T, Chang YJ, Fietzer AL, Kulig K. Toe flexor strength, flexibility and function and flexor hallucis longus tendon morphology in dancers and non-dancers. Medical Problems of Performing Artists, 30:152-156, 2015
8. Kulig K, Joiner DG, Chang YJ. Landing limb posture in volleyball athletes with patellar tendinopathy: A pilot study. International Journal of Sports Medicine, 36:400-406, 2015
9. Kulig K, Oki K, Chang YJ, Bashford G. Achilles and patellar tendon morphology in dancers with and without tendon pain. Medical Problems of Performing Artists, 29:221-228, 2014
10. Kulig K, Landel R, Chang YJ, Hannanvash N, Reischl S, Song P, Bashford G. Patellar tendon morphology in volleyball athletes with and without patellar tendinopathy. Scand J Med Sci Sports, 23:e81-e88, 2013
11. Fietzer AL, Chang YJ, Kulig K. Dancers with patellar tendinopathy exhibit higher vertical and braking ground reaction forces during landing. J Sports Sciences 30:1157-1163, 2012
12. Wu YT, Chang YJ, Yang JF, Tsauo JY. Utilization of outpatient rehabilitation-related therapies by patients with catastrophic illness and disability under the National Health Insurance Program in Taiwan. Formosan Journal of Physical Therapy 2002;27(1):1-9. (In Chinese)
13. Chang YJ, Chai HM, Lin MC. Experiences in Podiatric Physical Therapy. Formosan Journal of Physical Therapy 2001;26(4):S25. (In Chinese)
14. Wu YT, Chang YJ, Yang JF, Tsauo JY. Analysis of the growth of outpatient services in rehabilitation-related therapy. Chinese Journal of Public Health 2000;19(1):61-65. (In Chinese)
15. Chang YJ, Wu YT, Tsauo JY, Chai HM. Study on International Classification of Disease coding in inpatients' utilization of physical therapy. Formosan Journal of Physical Therapy 2000;25(6):344-350. (In Chinese)
16. Wu YT, Chang YJ, Wang HP, Lee MB. Evaluation of clinical education in physical therapy. Journal of Medical Education 1999;3(1):53-61. (In Chinese)

Publications

Publications

1. Kulig K, Chang YJ, Ortiz-Weissberg D. A Perspective on Reversibility of Tendinosis-Induced Multi-Level Adaptations. Frontiers in Physiology. 2020;11(651).
2. Sandrey MA, Chang YJ, McCrory JL. The Effect of Fatigue on Leg Muscle Activation and Tibial Acceleration During a Jumping Task. Journal of Sport Rehabilitation, 1-7, 2019 (Online ahead of print)
3. Ho KY, Harty M, Kellogg J, Teter K, Lee SP, Chang YJ, Bashford G. Patellar tendon morphology in trans-tibial amputees utilizing a prosthesis with a patellar-tendon-bearing feature. Scientific Reports, 9:1-7, 2019
4. Ho KY, Baquet A, Chang YJ, Chien LC, Harty M, Bashford G, Kulig K. Factors related to intra-tendinous morphology of Achilles tendon in runners. PLoS One, 14:e0221183, 2019
5. Kulig K, Chang YJ, Winiarski S, Bashford GR. Ultrasound based tendon micromorphology predicts mechanical characteristics of degenerated tendons. Ultrasound in Medicine and Biology, 42:664-673, 2016
6. Chang YJ, Kulig K. The neuromechanical adaptations to Achilles tendinosis. J Physiol, 593:3373-3387, 2015
7. Rowley KM, Jarvis DN, Kurihara T, Chang YJ, Fietzer AL, Kulig K. Toe flexor strength, flexibility and function and flexor hallucis longus tendon morphology in dancers and non-dancers. Medical Problems of Performing Artists, 30:152-156, 2015
8. Kulig K, Joiner DG, Chang YJ. Landing limb posture in volleyball athletes with patellar tendinopathy: A pilot study. International Journal of Sports Medicine, 36:400-406, 2015
9. Kulig K, Oki K, Chang YJ, Bashford G. Achilles and patellar tendon morphology in dancers with and without tendon pain. Medical Problems of Performing Artists, 29:221-228, 2014
10. Kulig K, Landel R, Chang YJ, Hannanvash N, Reischl S, Song P, Bashford G. Patellar tendon morphology in volleyball athletes with and without patellar tendinopathy. Scand J Med Sci Sports, 23:e81-e88, 2013
11. Fietzer AL, Chang YJ, Kulig K. Dancers with patellar tendinopathy exhibit higher vertical and braking ground reaction forces during landing. J Sports Sciences 30:1157-1163, 2012
12. Wu YT, Chang YJ, Yang JF, Tsauo JY. Utilization of outpatient rehabilitation-related therapies by patients with catastrophic illness and disability under the National Health Insurance Program in Taiwan. Formosan Journal of Physical Therapy 2002;27(1):1-9. (In Chinese)
13. Chang YJ, Chai HM, Lin MC. Experiences in Podiatric Physical Therapy. Formosan Journal of Physical Therapy 2001;26(4):S25. (In Chinese)
14. Wu YT, Chang YJ, Yang JF, Tsauo JY. Analysis of the growth of outpatient services in rehabilitation-related therapy. Chinese Journal of Public Health 2000;19(1):61-65. (In Chinese)
15. Chang YJ, Wu YT, Tsauo JY, Chai HM. Study on International Classification of Disease coding in inpatients' utilization of physical therapy. Formosan Journal of Physical Therapy 2000;25(6):344-350. (In Chinese)
16. Wu YT, Chang YJ, Wang HP, Lee MB. Evaluation of clinical education in physical therapy. Journal of Medical Education 1999;3(1):53-61. (In Chinese)