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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.
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.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Elderly adults | Experimental | Stair climbing with and without a wearable hip assist robot |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Wearable hip assist robot | Device | All participants climbed stairs from the first basement level to the fourth floor of the Proton Therapy Center, Samsung Medical Center, Korea with and without a wearable hip assist robot. During climbing stairs, the metabolic energy expenditure of all participants was measured using a portable cardiopulmonary metabolic system (Cosmed K4b², Rome, Italy). |
| Measure | Description | Time Frame |
|---|---|---|
| Change on metabolic energy expenditure in GEMS condition compared with NoGEMS condition | 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. | 1 hour |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Yun-Hee Kim, MD, PhD | Samsung Medical Center | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Samsung Medical Center | Seoul | South Korea |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 30268096 | Derived | Kim DS, Lee HJ, Lee SH, Chang WH, Jang J, Choi BO, Ryu GH, Kim YH. A wearable hip-assist robot reduces the cardiopulmonary metabolic energy expenditure during stair ascent in elderly adults: a pilot cross-sectional study. BMC Geriatr. 2018 Sep 29;18(1):230. doi: 10.1186/s12877-018-0921-1. |
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| ID | Term |
|---|---|
| D020233 | Gait Disorders, Neurologic |
| D015438 | Health Behavior |
| ID | Term |
|---|---|
| D009461 | Neurologic Manifestations |
| D009422 | Nervous System Diseases |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| D001519 | Behavior |