The Effect of a Wearable Hip Assist Robot on Cardiopulmonary Metabolic Efficiency During Stair Ascent in Elderly Adults
Trial Snapshot
- Phase
- Not Applicable
- Status
- Completed
- Sponsor
- Samsung Medical Center
- Enrollment
- 15
- Locations
- 1
- Primary Endpoint
- Change on metabolic energy expenditure in GEMS condition compared with NoGEMS condition
Study Overview
Brief Summary
The aim of this study was to identify the assistance effect of the new wearable hip assist robot, gait enhancing mechatronic system (GEMS) developed by Samsung Advanced Institute of Technology (Samsung Electronics Co, Ltd., Korea) during stair ascent by comparing the energy expenditure of elderly adults with and without the GEMS.
Detailed Description
Primary objective of this study is to demonstrate the effect of a wearable hip assist robot on cardiopulmonary metabolic efficiency during stair ascent in elderly adults.
Fifteen elderly adults participated in this study. The stair ascent trials were designed to climb stairs from the first basement level to the fourth floor of the Proton Therapy Center, Samsung Medical Center, Korea. The metabolic energy expenditure was measured using a portable cardiopulmonary metabolic system (Cosmed K4b², Rome, Italy) while participants performed randomly assigned two different conditions consecutively:, free ascent without the GEMS (NoGEMS) or robot-assisted ascent with the GEMS (GEMS). Participants rested for 10 minutes between the two trial conditions.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Other
- Masking
- None
Eligibility Criteria
- Ages
- 65 Years to 84 Years (Older Adult)
- Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •Elderly adults who absence of a history of musculoskeletal or central nervous system diseases
- •High levels of physical performance (SPPB > 8)
Exclusion Criteria
- •Elderly adults who absence of the ability to walk independently due to visual field defects, fractures, or severe muscle weakness
- •Severe dizziness that might lead to falls
- •Cognitive disorders that might be difficult to understand accurately in this study
Arms & Interventions
Elderly adults
Stair climbing with and without a wearable hip assist robot
Intervention: Wearable hip assist robot (Device)
Outcomes
Primary Outcomes
Change on metabolic energy expenditure in GEMS condition compared with NoGEMS condition
Time Frame: 1 hour
All participants stood in a comfortable position for 5 minutes to obtain baseline variables before stair ascent. Participants were then asked to climb stairs from the first basement level to the fourth floor of the Proton Therapy Center, Samsung Medical Center, Korea, in a step-over-step manner under two different conditions, GEMS and NoGEMS. The GEMS and NoGEMS conditions were conducted in a random order, and just before the second condition, participants stood for 2～3 minutes to obtain baseline variables once more.
Secondary Outcomes
No secondary outcomes reported
Investigators
Yun-Hee Kim
Professor, MD, PhD
Samsung Medical Center