Measurement of Elbow Spasticity in Stroke Patients Using a Manual Spasticity Evaluator. - Yi-Ning Wu; Hyung Soon Park; Yupeng Ren; Deborah J. Gaebler-Spira; Jia-Jin Chen; Li-Qun Zhang (EMBC, 2006)

A wearable robot for upper limb rehabilitation of patients with neurological disorders. - Yupeng Ren; Hyung Soon Park; Yue Li; Liang Wang; Li-Qun Zhang (ROBIO, 2010)

A pivoting elliptical training system for prevention and rehabilitation of musculoskeletal injuries. - Yupeng Ren; Song Joo Lee; Hyung Soon Park; Li-Qun Zhang (ICORR, 2013)