An objective pronator drift test application (iPronator) using handheld device.
BACKGROUND: The pronator drift test is widely used to detect mild arm weakness. We developed an application that runs on a handheld device to objectify the pronator drift test and investigated its feasibility in stroke patients. METHODS: The iPronator application, which uses the built-in acceleromet...
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doaj-88a6bfc1290e41aca9777b48e738908e2020-11-25T01:53:39ZengPublic Library of Science (PLoS)PLoS ONE1932-62032012-01-0177e4154410.1371/journal.pone.0041544An objective pronator drift test application (iPronator) using handheld device.Soojeong ShinEunjeong ParkDong Hyun LeeKi-Jeong LeeJi Hoe HeoHyo Suk NamBACKGROUND: The pronator drift test is widely used to detect mild arm weakness. We developed an application that runs on a handheld device to objectify the pronator drift test and investigated its feasibility in stroke patients. METHODS: The iPronator application, which uses the built-in accelerometer in handheld devices, was developed. We enrolled acute ischemic stroke patients (n = 10) with mild arm weakness and healthy controls (n = 10) to validate the iPronator. In addition to conventional neurological examinations, the degree of average, maximum, and oscillation in drift and pronation were measured and compared using the iPronator. Follow-up tests using the iPronator were also conducted in the patient group one week later. RESULTS: There was a strong correlation between the average degree of pronation and drift measured by the iPronator (r = 0.741, p<0.001). The degrees of average and maximum in pronation were greater in the patient group than in the control group [in average, 28.9°, interquartile range (IQR) 18.7-40.3 vs. 3.8° (IQR 0.3-7.5), p<0.001], in maximum, 33.0° (IQR 24.0-52.1) vs. 6.2° (IQR 1.4-9.4), p<0.001]. The degree of oscillation in pronation was not different between the groups (p = 0.166). In drift, the degrees of average, maximum, and oscillation were greater in the patient group. In stroke patients, a follow-up study at one week revealed improvements in the degrees of pronation and drift compared with baseline parameters. CONCLUSIONS: The iPronator can reliably detect mild arm weakness of stroke patients and was also useful in detecting functional recovery for one week in patients with acute stroke.http://europepmc.org/articles/PMC3404034?pdf=render |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Soojeong Shin Eunjeong Park Dong Hyun Lee Ki-Jeong Lee Ji Hoe Heo Hyo Suk Nam |
spellingShingle |
Soojeong Shin Eunjeong Park Dong Hyun Lee Ki-Jeong Lee Ji Hoe Heo Hyo Suk Nam An objective pronator drift test application (iPronator) using handheld device. PLoS ONE |
author_facet |
Soojeong Shin Eunjeong Park Dong Hyun Lee Ki-Jeong Lee Ji Hoe Heo Hyo Suk Nam |
author_sort |
Soojeong Shin |
title |
An objective pronator drift test application (iPronator) using handheld device. |
title_short |
An objective pronator drift test application (iPronator) using handheld device. |
title_full |
An objective pronator drift test application (iPronator) using handheld device. |
title_fullStr |
An objective pronator drift test application (iPronator) using handheld device. |
title_full_unstemmed |
An objective pronator drift test application (iPronator) using handheld device. |
title_sort |
objective pronator drift test application (ipronator) using handheld device. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2012-01-01 |
description |
BACKGROUND: The pronator drift test is widely used to detect mild arm weakness. We developed an application that runs on a handheld device to objectify the pronator drift test and investigated its feasibility in stroke patients. METHODS: The iPronator application, which uses the built-in accelerometer in handheld devices, was developed. We enrolled acute ischemic stroke patients (n = 10) with mild arm weakness and healthy controls (n = 10) to validate the iPronator. In addition to conventional neurological examinations, the degree of average, maximum, and oscillation in drift and pronation were measured and compared using the iPronator. Follow-up tests using the iPronator were also conducted in the patient group one week later. RESULTS: There was a strong correlation between the average degree of pronation and drift measured by the iPronator (r = 0.741, p<0.001). The degrees of average and maximum in pronation were greater in the patient group than in the control group [in average, 28.9°, interquartile range (IQR) 18.7-40.3 vs. 3.8° (IQR 0.3-7.5), p<0.001], in maximum, 33.0° (IQR 24.0-52.1) vs. 6.2° (IQR 1.4-9.4), p<0.001]. The degree of oscillation in pronation was not different between the groups (p = 0.166). In drift, the degrees of average, maximum, and oscillation were greater in the patient group. In stroke patients, a follow-up study at one week revealed improvements in the degrees of pronation and drift compared with baseline parameters. CONCLUSIONS: The iPronator can reliably detect mild arm weakness of stroke patients and was also useful in detecting functional recovery for one week in patients with acute stroke. |
url |
http://europepmc.org/articles/PMC3404034?pdf=render |
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