Impact of ICARE Training Speed and Motor Assistance on Cardiovascular Response. Issue 3 (July 2019)

• Record Type: Journal Article
• Authors: Burnfield, Judith M.; Pfeifer, Chase M.; Kwapiszeski, Sarah J.; Irons, Sonya L.; Buster, Thad W.; Cesar, Guilherme M.
• Is Part Of: Cardiopulmonary physical therapy journal. Volume 30:Issue 3(2019)
• Publication Date: 2019-07
• Subjects: physical rehabilitation -- heart rate -- robotics; Cardiopulmonary system -- Diseases -- Physical therapy -- Periodicals; Cardiovascular system -- Diseases -- Physical therapy -- Periodicals; Lungs -- Diseases -- Physical therapy -- Periodicals; Periodicals; 616.1062
• DOI: 10.1097/CPT.0000000000000098
• Languages: English
• ISSNs: 1541-7891

Abstract

Abstract : Purpose: A motor-assisted elliptical, ICARE, is used to address walking and fitness goals; yet, only limited data guide understanding of the impact of ICARE training parameters (e.g., speed and motor assistance) on cardiovascular response. A repeated-measures design investigated the influence of 5 predetermined ICARE speeds (25, 35, 45, 55, and 65 revolutions per minute) and 2 motor-assistance levels (with and without assistance) on heart rate (HR), Borg ratings of perceived exertion (RPE), and blood pressure (BP). Methods: Ten healthy participants' HR, RPE, and BP were recorded during steady state Active Assist ( ICARE 's motor assisting leg movement) and Active Assist Plus exercise (without motor's assistance) at 5 speeds. Results: Significant main effects on HR were documented for ICARE speed ( F [4, 36] = 77.313, P < .001) and motor assistance ( F [1, 36] = 224.813, P < .001), and an interaction ( F [4, 36] = 4.410, P = .005). Significant main effects on RPE were documented for speed ( F [4, 36] = 47.106, P < .001) and motor assistance ( F [1, 36] = 24.929, P < .001). Significant main effects on systolic BP were documented for speed ( F [4, 36] = 78.849, P < .001) and motor assistance ( F [1, 36] = 6.911, P = .027), and an interaction ( F [4, 36] = 5.695, P = .001). Only the main effect of motor assistance on diastolic BP was significant ( F [1, 36] = 7.917, P = .020). Conclusions: Increases in ICARE speed and decreases in motor assistance contributed to clinically relevant increases in HR, RPE, and systolic BP in a cohort of young, nondisabled adults.