scholarly journals Quantitative assessment of cerebella ataxia through automated upper limb functional tests

2019 ◽  
Author(s):  
Ragil Krishna ◽  
Pubudu N. Pathirana ◽  
Malcom Horne ◽  
Laura Power ◽  
David Szmulewicz
Keyword(s):  
Upper Limb ◽  
Quantitative Assessment ◽  
Functional Tests

scholarly journals Quantitative Assessment of Upper Limb Motor Function in Ethiopian Acquired Brain Injured Patients Using a Low-Cost Wearable Sensor

2019 ◽  
Vol 10 ◽  
Author(s):  
Charmayne M. L. Hughes ◽  
Moges Baye ◽  
Chloe Gordon-Murer ◽  
Alexander Louie ◽  
Selena Sun ◽  
...  
Keyword(s):  
Motor Function ◽  
Upper Limb ◽  
Quantitative Assessment ◽  
Low Cost ◽  
Wearable Sensor ◽  
Brain Injured ◽  
Injured Patients

scholarly journals Quantitative Assessment of Upper Limb Motion in Neurorehabilitation Utilizing Inertial Sensors

2015 ◽  
Vol 23 (2) ◽  
pp. 232-243 ◽  
Author(s):  
Lu Bai ◽  
Matthew G. Pepper ◽  
Yong Yan ◽  
Sarah K. Spurgeon ◽  
Mohamed Sakel ◽  
...  
Keyword(s):  
Upper Limb ◽  
Quantitative Assessment ◽  
Inertial Sensors

scholarly journals The Rehapiano—Detecting, Measuring, and Analyzing Action Tremor Using Strain Gauges

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 663
Author(s):  
Norbert Ferenčík ◽  
Miroslav Jaščur ◽  
Marek Bundzel ◽  
Filippo Cavallo
Keyword(s):  
Upper Limb ◽  
Quantitative Assessment ◽  
Experimental Results ◽  
Strain Gauges ◽  
Digital Converter ◽  
Action Tremor ◽  
Raw Data ◽  
Analog To Digital ◽  
Usb Interface ◽  
Measurement Protocol

We have developed a device, the Rehapiano, for the fast and quantitative assessment of action tremor. It uses strain gauges to measure force exerted by individual fingers. This article verifies the device’s capability to measure and monitor the development of upper limb tremor. The Rehapiano uses a precision, 24-bit, analog-to-digital converter and an Arduino microcomputer to transfer raw data via a USB interface to a computer for processing, database storage, and evaluation. First, our experiments validated the device by measuring simulated tremors with known frequencies. Second, we created a measurement protocol, which we used to measure and compare healthy patients and patients with Parkinson’s disease. Finally, we evaluated the repeatability of a quantitative assessment. We verified our hypothesis that the Rehapiano is able to detect force changes, and our experimental results confirmed that our system is capable of measuring action tremor. The Rehapiano is also sensitive enough to enable the quantification of Parkinsonian tremors.

scholarly journals Assessment of body-powered upper limb prostheses by able-bodied subjects, using the Box and Blocks Test and the Nine-Hole Peg Test

2014 ◽  
Vol 40 (1) ◽  
pp. 109-116 ◽  
Author(s):  
Liz Haverkate ◽  
Gerwin Smit ◽  
Dick H Plettenburg
Keyword(s):  
Study Design ◽  
Upper Limb ◽  
Clinical Relevance ◽  
Functional Performance ◽  
Reference Value ◽  
Functional Tests ◽  
Second Best ◽  
Terminal Device ◽  
Upper Limb Prostheses ◽  
Nine Hole Peg Test

Background: The functional performance of currently available body-powered prostheses is unknown. Objective: The goal of this study was to objectively assess and compare the functional performance of three commonly used body-powered upper limb terminal devices. Study design: Experimental trial. Methods: A total of 21 able-bodied subjects ( n = 21, age = 22 ± 2) tested three different terminal devices: TRS voluntary closing Hook Grip 2S, Otto Bock voluntary opening hand and Hosmer Model 5XA hook, using a prosthesis simulator. All subjects used each terminal device nine times in two functional tests: the Nine-Hole Peg Test and the Box and Blocks Test. Results: Significant differences were found between the different terminal devices and their scores on the Nine-Hole Peg Test and the Box and Blocks Test. The Hosmer hook scored best in both tests. The TRS Hook Grip 2S scored second best. The Otto Bock hand showed the lowest scores. Conclusion: This study is a first step in the comparison of functional performances of body-powered prostheses. The data can be used as a reference value, to assess the performance of a terminal device or an amputee. Clinical relevance The measured scores enable the comparison of the performance of a prosthesis user and his or her terminal device relative to standard scores.

Objective Quantitative Assessment of Movement Disorders Through Analysis of Static Handwritten Characters

2015 ◽  
Author(s):  
Naiqian Zhi ◽  
Beverly K. Jaeger ◽  
Andrew Gouldstone ◽  
Samuel Frank ◽  
Rifat Sipahi
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Essential Tremor ◽  
Upper Limb ◽  
Movement Disorders ◽  
Healthy Subjects ◽  
Quantitative Assessment ◽  
Clinical Tests ◽  
Assessment Approach

Movement disorders associated with Essential Tremor (ET) and Parkinson’s disease (PD) can negatively impact use of the upper limb for many precision tasks, including handwriting. Both ET and PD can be assessed through clinical tests which are, however, relatively subjective. This assessment approach possesses inherent logistical and resolution limitations. To address this, here we present objective computerized metrics intended to assess and quantify the extent to which static writing samples display the effects of ET and PD. Specifically, these metrics are tested in their ability to measure tremor by comparing unaffected writing samples with those affected by artificially induced tremor on healthy subjects, and also by comparing healthy writing samples with symptomatic writing samples collected from PD patients reporting micrographia. Our findings indicate that the presented metrics can be utilized for assessment, leading to a toolset capable of objectively monitoring static handwriting changes associated with symptom variations in ET and/or PD patients.

scholarly journals Detection of Upper Limb Asymmetries in Athletes According to the Stage of the Season—A Longitudinal Study

2022 ◽  
Vol 19 (2) ◽  
pp. 849
Author(s):  
Álvaro Velarde-Sotres ◽  
Antonio Bores-Cerezal ◽  
Marcos Mecías-Calvo ◽  
Martín Barcala-Furelos ◽  
Silvia Aparicio-Obregón ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Risk Factor ◽  
Longitudinal Study ◽  
Body Mass ◽  
Upper Limb ◽  
Repeated Measures ◽  
Sports Injuries ◽  
Upper Limbs ◽  
Functional Tests ◽  
Injury Assessment

Sports injuries can affect the performance of athletes. For this reason, functional tests are used for injury assessment and prevention, analyzing physical or physiological imbalances and detecting asymmetries. The main aim of this study was to detect the asymmetries in the upper limbs (right and left arms) in athletes, using the OctoBalance Test (OB), depending on the stage of the season. Two hundred and fifty-two participants (age: 23.33 ± 8.96 years old; height: 178.63 ± 11.12 cm; body mass: 80.28 ± 17.61 kg; body mass index: 24.88 ± 4.58; sports experience: 12.52 ± 6.28 years), practicing different sports (rugby, athletics, football, swimming, handball, triathlon, basketball, hockey, badminton and volleyball), assessed with the OB in medial, superolateral, and inferolateral directions in both arms, in four moments of the season (May 2017, September 2017, February 2018 and May 2018). ANOVA test was used with repeated measures with a p ≤ 0.05, for the analysis of the different studied variances. Significant differences were found (p = 0.021) in the medial direction of the left arm, between the first (May 2017) and fourth stages (May 2018), with values of 71.02 ± 7.15 cm and 65.03 ± 7.66 cm. From the detection of asymmetries, using the OB to measure, in the medial, superolateral and inferolateral directions, mobility and balance can be assessed. In addition, it is possible to observe functional imbalances, as a risk factor for injury, in each of the stages into which the season is divided, which will help in the prevention of injuries and in the individualization of training.

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