The present study was to compare the effectiveness of heart rate reserve (HRR)-guided high-intensity robot-assisted gait training (RAGT) to RPE-guided high-intensity RAGT on motor function and gait ability in patients with chronic stroke. The HRR-guided high-intensity RAGT group received the RAGT at 70% of HRR, whereas the RPE-guided high-intensity RAGT group received RAGT at RPE of 15. Both groups received their assigned therapy for 30 minutes per session, 3 days per week for 6 weeks. HRR-guided high-intensity RAGT group was significantly more improved than the RPE-guided high-intensity RAGT group in Fugl-Meyer assessment Lower extremity score, walking speed, cadence, step length, stride length, swing time, double support rate, single support rate, symmetrical index of swing, symmetrical index of stance, and 10-m velocity test (P < .05). Thus, HRR-guided high-intensity RAGT group improved in terms of motor function, gait ability, and controlled symmetric gait pattern more than the RPE-guided high-intensity RAGT group by physiological gait training at more high intensity. These results suggest that HRR-guided high-intensity RAGT group is safe and effective for improvement of motor function and gait ability in chronic stroke.
Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Seoul, Republic of Korea (Drs Bae and Kim); Department of Physical Therapy (DPT program), Angelo State University, San Angelo, Texas (Dr Bae); Center for Prevention and Rehabilitation, Heart Vascular and Stroke Institute, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea (Dr Kim); Samsung Advanced Institute for Health Science and Technology, Sungkyunkwan University, Seoul, Republic of Korea (Dr Kim); and Institute of Human Performance, University of Hong Kong, Hong Kong (Dr Fong).
Correspondence: Young-Hyeon Bae, PT, PhD, Department of Physical and Rehabilitation Medicine, Samsung Medical Center, Seoul, Republic of Korea (firstname.lastname@example.org).
The authors thank all of the study participants. The present study was carried out as part of a PhD degree in physical therapy at the Sahmyook University.
Young-Hyeon Bae contributed to data collection; analysis and interpretation of data; and preparation of manuscript. Yun-Hee Kim and Shirley S.M. Fong contributed to preparation of manuscript.
There are no conflicts of interest to declare.