scholarly journals The effect of rehabilitation using motion recognition on hand functions in patients with hand injury

2021 ◽  
Vol 22 (11) ◽  
pp. 384-394
Author(s):  
Yun-Jun Cha ◽  
Dong-Hee Noh ◽  
Kyung-Yoon Kam
Keyword(s):  
Hand Injury ◽  
Motion Recognition ◽  
Hand Functions

Comparison of machine learning methods in sEMG signal processing for shoulder motion recognition

2021 ◽  
Vol 68 ◽  
pp. 102577
Author(s):  
Yang Zhou ◽  
Chaoyang Chen ◽  
Mark Cheng ◽  
Yousef Alshahrani ◽  
Sreten Franovic ◽  
...  
Keyword(s):  
Machine Learning ◽  
Signal Processing ◽  
Learning Methods ◽  
Semg Signal ◽  
Motion Recognition ◽  
Machine Learning Methods ◽  
Shoulder Motion

scholarly journals Application of human motion recognition technology in extreme learning machine

2021 ◽  
Vol 18 (1) ◽  
pp. 172988142098321
Author(s):  
Anzhu Miao ◽  
Feiping Liu
Keyword(s):  
Extreme Learning Machine ◽  
Research Work ◽  
Human Motion ◽  
Feature Descriptor ◽  
Background Variable ◽  
Motion Recognition ◽  
Network Training ◽  
Other Information ◽  
Human Motion Recognition ◽  
Learning Machine

Human motion recognition is a branch of computer vision research and is widely used in fields like interactive entertainment. Most research work focuses on human motion recognition methods based on traditional video streams. Traditional RGB video contains rich colors, edges, and other information, but due to complex background, variable illumination, occlusion, viewing angle changes, and other factors, the accuracy of motion recognition algorithms is not high. For the problems, this article puts forward human motion recognition based on extreme learning machine (ELM). ELM uses the randomly calculated implicit network layer parameters for network training, which greatly reduces the time spent on network training and reduces computational complexity. In this article, the interframe difference method is used to detect the motion region, and then, the HOG3D feature descriptor is used for feature extraction. Finally, ELM is used for classification and recognition. The results imply that the method proposed here has achieved good results in human motion recognition.

The effects of sensory re-education on hand function recovery after peripheral nerve repair: A systematic review

2021 ◽  
pp. 1-12
Author(s):  
Weili Xia ◽  
Zhongfei Bai ◽  
Rongxia Dai ◽  
Jiaqi Zhang ◽  
Jiani Lu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Peripheral Nerve ◽  
Nerve Repair ◽  
Hand Function ◽  
Current Evidence ◽  
Motor Deficits ◽  
Peripheral Nerve Repair ◽  
Hand Functions ◽  
Function Recovery ◽  
Short And Long Term

BACKGROUND: Peripheral nerve injury can result in both sensory and motor deficits, and these impairments can last for a long period after nerve repair. OBJECTIVE: To systematically review the effects of sensory re-education (SR) on facilitating hand function recovery after peripheral nerve repair. METHODS: This systematic review was limited to articles published from 1970 to 20 December 2020. Electronic searching was performed in CINAHL, Embase, PubMed, Web of Science, and Medline databases to include trials investigating the effects of SR training on hand function recovery after peripheral nerve repair and included only those studies with controlled comparisons. RESULTS: Sixteen articles were included in final data synthesis. We found that only four studies could be rated as having good quality and noted obvious methodological limitations in the remaining studies. The current evidence showed that early SR with mirror visual feedback and the combinational use of classic SR and topical temporary anesthetic seemed to have long- and short-term effects, respectively on improving the sensibility and reducing the disabilities of the hand. The evidence to support the effects of conventional classical SR on improving hand functions was not strong. CONCLUSIONS: Further well-designed trials are needed to evaluate the effects of different SR techniques on hand function after nerve repair over short- and long-term periods.

Determination of the optimal cutoff values and validity of the Purdue Pegboard Test

2021 ◽  
pp. 030802262110080
Author(s):  
Ilkem Ceren Sigirtmac ◽  
Cigdem Oksuz
Keyword(s):  
Construct Validity ◽  
Hand Function ◽  
Area Under The Curve ◽  
Hand Injury ◽  
Cutoff Value ◽  
Cutoff Values ◽  
Hand Dexterity ◽  
Valid Instrument ◽  
Healthy Participants

Introduction The Purdue Pegboard Test (PPT) is crucial for assessing fine dexterity of patients with hand injury. Determining the PPT cutoff value is needed to distinguish patients with impaired hand dexterity from those with unimpaired hand dexterity. The aim of this article is to examine the construct validity of PPT and to determine its cutoff values for patients with hand injuries. Method The PPT and Disabilities of Arm Shoulder and Hand Questionnaire Turkish version (DASH-T) were used to measure hand dexterity. To examine construct validity, we measured the correlation between PPT and DASH-T. The cutoff values were determined using the receiver operating characteristic (ROC) curve generated with sensitivity and 1-specificity. We recruited 101 patients with hand injury and 162 healthy participants. Results Correlation between all subtests of PPT and DASH-T were weak ( r = −0.282; −0.473: p<0.05). The cutoff value for the assembly subtest of PPT was 24.5. The range of area under the curve (AUC) values for PPT subtests was good to excellent (AUC: 0.82–0.92). Conclusion The current study demonstrates that PPT is a valid instrument for measuring hand dexterity in patients with hand injury. Results also suggest that PPT distinguished the patients with impaired hand function from those with unimpaired hand dexterity.

Stainless Steel 2.0-mm Locking Compression Plate Osteosynthesis System for the Fixation of Comminuted Hand Fractures in Asian Adults

2011 ◽  
Vol 15 (2) ◽  
pp. 57-61
Author(s):  
Wong Hing-Cheong ◽  
Wong Hin-Keung ◽  
Wong Kam-Yiu
Keyword(s):  
Stainless Steel ◽  
Plate Osteosynthesis ◽  
Locking Compression Plate ◽  
Implant Removal ◽  
Hand Functions ◽  
Hand Fractures ◽  
Additional Surgery ◽  
Metacarpal Bones ◽  
Compression Plate ◽  
Grip Power

Objective The aim of this retrospective study was to analyse the clinical outcome of the application of stainless steel 2.0-mm locking compression plate (LCP) system for the treatment of comminuted hand fractures in Asian adults. Methods Six patients who had comminuted hand fractures were treated by open reduction and internal fixation with the application of stainless steel 2.0-mm LCP (AO Compact Hand System; Synthes, Oberdorf, Switzerland) from December 2009 to October 2010. The total arc of motion of fingers, grip power, complications, and additional surgery were recorded. Results Three out of six patients eventually restored good hand functions in terms of the total arc of finger motion (>220°) and grip power. The commonest complication was skin impingement in finger region by the implant (4 cases). Another common complication was restricted range of motion (3 cases). One patient had minimal degree of malrotation of his left little finger. Additional surgery was required in all the patients for implant removal (6 cases), tenolysis (3 cases), and capsulotomy (2 cases). Conclusions The stainless steel 2.0-mm LCP is useful for the fixation of unstable comminuted hand fractures, especially in metacarpal bones, because of its advantage of better stability, which allows more aggressive rehabilitation. However, its design is not very versatile and, therefore, limits its use in the finger region. Its bulkiness frequently causes implant impingement. The patients must be informed about the chance of implant removal later.

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