EMG Activation Pattern during Voluntary Bending and Donning Safety Shoes

2014 ◽  
pp. 234-256
Author(s):  
P. K. Nag ◽  
Varsha Chorsiya ◽  
Anjali Nag
Keyword(s):  
Work Environment ◽  
Motor System ◽  
Health And Safety ◽  
Daily Activities ◽  
Activation Pattern ◽  
Activation Patterns ◽  
Limits Of Stability ◽  
Sensory Motor ◽  
Occupational Task ◽  
Muscular Activation

Posture control is a well-coordinated interplay of sensory-motor system and forms the basis of voluntary movements. The daily activities and occupational task involves voluntary bending in different directions, which if falls beyond the limit of stability can cause slipping, tripping and falling. Further, these accidents are very common in industries where workers have to wear safety shoes to protect their feet from hazards of the work environment. The study elucidates the muscular activation patterns in light of electromyographic (EMG) findings for voluntary bending within limits of stability and with donning of safety shoes. The aim of this chapter is to potentially contribute to occupational health and safety at workplaces. The present findings have implications regarding the viability of muscle adaptability as a putative postural control in preventing postural instability and avoiding injuries.

scholarly journals The biceps brachii role in the stabilization of the cross punch

2020 ◽  
pp. 13
Author(s):  
◽  
◽  
◽  
◽  
◽  
...  
Keyword(s):  
Biceps Brachii ◽  
Upper Limbs ◽  
Activation Pattern ◽  
Skill Levels ◽  
Activation Patterns ◽  
Elastic Impact ◽  
Emg Signal ◽  
The Impact ◽  
Muscular Activation ◽  
Better Than

Purpose: starting from an injury background, we assumed that the biceps brachii’s activations could have an important role in upper limbs injury. In this work we analyzed whether different activations of the biceps brachii impact on the power transfer of the punch and how boxers of different skill levels activate the biceps brachii when deliver a punch according to their skill level and efficacy. Methods: we enrolled, basing on official rankings, 23 skilled (n=6) and unskilled boxers. Subjects were instructed to perform three cross punches directed to a fixed elastic target triggered by the coach whistling, and were monitored through a surface electromyography sensor (EMG) on the biceps brachii to estimate the muscular activation during the performance, and through an accelerometer placed inside the elastic impact target to estimate the impact energy. We analyzed the oscillatory content of the EMG signal in order to assess the muscular activation between skilled and unskilled boxers, and between weak and strong punches. Results: both skilled and unskilled boxers threw strong, medium and weak strikes. Skilled boxers performed better than unskilled boxers (47% vs 25% in the “strong punch” category).The EMG analysis revealed a significant increase of lower and higher frequencies (2-4 Hz and 15-17 Hz) and a decrease on the medium frequencies (7-9 Hz) in the skilled boxers compared to the unskilled boxers in strong punches. Weak punches had a similar activation patterns in the two groups. Conclusions: our results support the hypothesis that skilled boxers adapt their activation pattern of the biceps to better stabilize the punch delivery (and thus increasing the transfer of force).

scholarly journals A cross-species neural integration of gravity for motor optimization

2021 ◽  
Vol 7 (15) ◽  
pp. eabf7800
Author(s):  
Jeremie Gaveau ◽  
Sidney Grospretre ◽  
Bastien Berret ◽  
Dora E. Angelaki ◽  
Charalambos Papaxanthis
Keyword(s):  
Optimization Strategy ◽  
Motor Patterns ◽  
Activation Patterns ◽  
Single Degree Of Freedom ◽  
Single Degree ◽  
Neural Integration ◽  
Gravity Effects ◽  
Neural Signature ◽  
Experimental Findings ◽  
Muscular Activation

Recent kinematic results, combined with model simulations, have provided support for the hypothesis that the human brain shapes motor patterns that use gravity effects to minimize muscle effort. Because many different muscular activation patterns can give rise to the same trajectory, here, we specifically investigate gravity-related movement properties by analyzing muscular activation patterns during single-degree-of-freedom arm movements in various directions. Using a well-known decomposition method of tonic and phasic electromyographic activities, we demonstrate that phasic electromyograms (EMGs) present systematic negative phases. This negativity reveals the optimal motor plan’s neural signature, where the motor system harvests the mechanical effects of gravity to accelerate downward and decelerate upward movements, thereby saving muscle effort. We compare experimental findings in humans to monkeys, generalizing the Effort-optimization strategy across species.

scholarly journals DISIPLIN KERJA, KESEHATAN DAN KESELAMATAN KERJA BERPENGARUH TERHADAP PRODUKTIVITAS KERJA KARYAWAN SARIASIH GARMENT

2020 ◽  
Vol 9 (6) ◽  
pp. 2107
Author(s):  
Briyan Artha Ginting ◽  
I Wayan Suana
Keyword(s):  
Occupational Health ◽  
Work Environment ◽  
Work Productivity ◽  
Health And Safety ◽  
Work Safety ◽  
Safe Work ◽  
Work Health ◽  
Saturated Sample ◽  
Maximum Work ◽  
Sample Method

Productivity is the ability to achieve certain tasks in accordance with predetermined standards. Companies must create safe work environment to motivate employees so that they can increase overall company productivity. Purpose of the study is to explain the effect of work discipline, occupational health and safety on the work productivity of Sariasih Garment employees with 51 people as samples, using saturated sample method. Data collected through observation, interviews and questionnaires and analyzed by multiple linear regression. Based on the results, work discipline, occupational health and work safety have  positive and significant effect on employee work productivity. It is expected that company pays attention to employees' compliance with regulations in doing their jobs and the company is able to create a safe, comfortable and clean work environment. Employees have enthusiasm and protection while working so that employees are able to increase work productivity in order to create maximum work results. Keywords: work productivity, work discipline, work health and safety

META ANALYSIS METHOD OVERVIEW OF MODELS USED IN OCCUPATIONAL SAFETY TRAININGS

2021 ◽  
Vol 6 (15) ◽  
pp. 482-490
Author(s):  
Filiz ARICAK ◽  
Evren ÇAĞLARER
Keyword(s):  
Work Environment ◽  
Occupational Safety ◽  
Meta Analysis ◽  
Health And Safety ◽  
Safety Training ◽  
Working Environment ◽  
Future Generations ◽  
Analysis Method ◽  
Training Models ◽  
Safety Procedures

In this study, an analysis of independent studies dealing with occupational safety training in different learning environments, in which various learning materials are used, was carried out. As a method, meta-analysis method was used. For this purpose, databases were used to collect national and international articles and papers suitable for the purpose of the study. Studies that did not mention the tools, equipment and environment used in education in the collected studies were excluded from the research, and 18 studies were included in the meta-analysis. The data obtained studies are categorized according to the education models, the sectors in which the education is applied and the characteristics of the participants in the education. As it is known, occupational health and safety procedures aim at a healthy and reliable working environment for its employees. However, the ultimate goal is to raise not only employees but also future generations with this awareness. The most important instrument of this is undoubtedly education. For this reason, it is necessary to develop training models suitable for the work environment, age, gender and every conceivable situation.

Effect of Occupational Health and Safety, and Work Environment on Employee Performance with Working Satisfaction as Mediation Variable

2021 ◽  
Vol 6 (2) ◽  
pp. 117-124
Author(s):  
Setyani Dwi Lestari ◽  
Nafiana Putri ◽  
Yuwono Yuwono ◽  
Indrabudiman Amir
Keyword(s):  
Job Satisfaction ◽  
Occupational Health ◽  
Work Environment ◽  
Structural Equation ◽  
Employee Performance ◽  
Health And Safety ◽  
Occupational Health And Safety ◽  
Working Environment ◽  
Coefficient Of Determination ◽  
Safety Work

Objective - This study aims to determine and analyze the influence of Occupational Health and Safety, and the Working Environment on Employee Performance with Job Satisfaction as a mediating variable in PT. Kereta Api Indonesia (Persero) with sample on DAOP I Jakarta. Methodology/Technique - The study population numbered 292 employees and 75 respondents be adopted as a sample of the study. Techniques of analysis using a statistical test structural equation model-based variance (SmartPLS). Findings – The results showed that, (1) Occupational Health and Safety had no effect on Job Satisfaction and Employee Performance, (2) the Work Environment had a positive and significant effect on Job Satisfaction and Employee Performance (3) Job Satisfaction has a positive and significant effect on Employee Performance, (4) Occupational Health and Safety has no effect on Employee Performance even though through Job Satisfaction mediation, (5) the Work Environment has a positive and significant effect on Employee Performance through mediation of Job Satisfaction, (6) Occupational Health and Safety, and the Work Environment simultaneously have a positive and significant effect on Job Satisfaction with the coefficient of determination, which is equal to 0,533, (7) Occupational Health and Safety, Work Environment, and Job Satisfaction simultaneously have a positive effect and significant to Employee Performance with coefficient of determination, which is equal to 0,890. Novelty - The company is expected to provide adequate rest periods, maintain the nutritional intake of its employees by providing healthy food, provide educational scholarships for further levels for employees, safeguard the work environment from chemical hazards and other hazards, and give positive motivation to the employees. Type of Paper: Empirical. JEL Classification: J20, J24, J28. Keywords: Occupational Health and Safety, Work Environment, Job Satisfaction, Employee Performance Reference to this paper should be made as follows: Dwi, L.S; Putri, N; Yuwono; Amir, I. (2021). Effect of Occupational Health and Safety, and Work Environment on Employee Performance with Working Satisfaction as Mediation Variable, Journal of Management and Marketing Review, 6(2) 117 – 124. https://doi.org/10.35609/jmmr.2021.6.2(3)

scholarly journals Responsiveness of Occupational Health Risk and Preventive Measures Practice by the Workers Employed in Tannery Occupation in Kanpur, India

2020 ◽  
Author(s):  
Gyan Chandra Kashyap ◽  
Praveen Chokhandre ◽  
Shri Kant Singh
Keyword(s):  
Health Status ◽  
Occupational Health ◽  
Work Environment ◽  
Preventive Measures ◽  
Health And Safety ◽  
School Level ◽  
Cross Sectional ◽  
Respiratory Problems ◽  
Strong Focus ◽  
Tannery Workers

Occupational health covers all aspects of health and safety in the workplace and has a strong focus on primary prevention of hazards. The objective of the study was to understand the extent of awareness about occupational health risks involved in tannery occupation and adopted preventive measures by the tannery workers of Kanpur, India. Information for the present research was strained from a cross-sectional household study of tannery workers in the Jajmau area of Kanpur. The survey was piloted through the period January–June 2015, and 284 samples were collected. The prevalence of awareness of tannery work is very hazardous in nature varies from 73–93% among the tannery workers. Tannery workers having a middle-school level of education were 3.01 times more likely to be aware of the hazards as compared to the illiterate workers. Tannery workers aged 36 and above were less likely to aware of a hazardous work environment. Further, tannery workers who belong to the younger cohort (16–24 years) reported a higher awareness of respiratory problems (38%), skin complaints (59%), and gastrointestinal issues (21%) than those aged 36 years and above. About one-third of Beam house workers (33%) and over a quarter (26%) of the wet finishing had moderate to high dermal contact with the chemicals. The study’s outcomes give a clear indication of the effect of the workstation environment on the health status of workers and require the use of adequate measures to improve the facilities and thereby the health status of tannery workers.

scholarly journals Health And Safety Instructions In The Markets

2018 ◽  
Vol 5 (4) ◽  
pp. 100-118
Author(s):  
Mehmet Çolak ◽  
Tahsin Cetin ◽  
Batuhan Çınar
Keyword(s):  
Occupational Health ◽  
Risk Analysis ◽  
Work Environment ◽  
New Technologies ◽  
Health And Safety ◽  
Occupational Health And Safety ◽  
Loss Of Life ◽  
The World ◽  
Work Accidents ◽  
Basic Philosophy

The concept of Occupational Health and Safety has become increasingly important as a result of increased industrialization and the development of new technologies all over the world. The basic philosophy of Occupational Health and Safety is to reduce the number of work accidents and to provide a healthier work environment for employees. The most risky sectors in the world are designated as mining, agriculture, forestry and construction. Markets are classified as "Dangerous Classes of Occupational Health and Safety" issued by the Ministry of Labor and Social Security (ILO, 2004). When the risks are taken into consideration, marketing companies should perform risk analysis to ensure that hazards and problems will ocur. In this context, it is needed to provide and implement training on occupational health and safety regularly in order to protect against the identified risks. Periodic evaluations are performed at regular intervals that decrease in loss of life and property at marketing companies, both tangible as well as intangible losses will be reduced. Keywords: Markets, risk analyse, occupational health and safety.

scholarly journals Telework during the COVID-19 epidemic in Portugal and determinants of job satisfaction: a cross-sectional study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Mafalda Sousa-Uva ◽  
António Sousa-Uva ◽  
Marta Mello e Sampayo ◽  
Florentino Serranheira
Keyword(s):  
Work Environment ◽  
Health And Safety ◽  
Cross Sectional Study ◽  
Work Life ◽  
Health Concern ◽  
Sectional Study ◽  
Physical And Mental Health ◽  
Online Questionnaire ◽  
Cross Sectional ◽  
Health Organization

Abstract Background Telework satisfaction is a Public Health concern, intensified by the COVID-19 pandemic, and its determinant factors may be related with the negative health effects of teleworking. However, there is still little research exploring this issue. This study aimed to characterize telework during the first wave of the COVID-19 epidemic in Portugal and to identify the major predictors of telework satisfaction. Methods This is a cross-sectional study aimed at all teleworkers working in Portugal, during the first wave of the COVID-19 epidemic. Data were collected through a Google Forms platform online questionnaire distributed by a snowball method on social networks. Descriptive statistics included crude and relative frequency data. The associations between sociodemographic characteristics, self-perceived health, organization of working time, concentration at work, work-life balance, work disconnection, working conditions, and organizational demands (flexibility and organizational trust based on E-work Life Scale) with telework satisfaction were estimated through logistic regression. Results This study included 1004 participants. Teleworkers satisfaction levels were high (69%). Better concentration at work (OR = 1.54; 95%CI 1.01–2.34); the satisfaction with the balance between work life and extra work when teleworking (OR = 1.79; 95%CI 1.17–2.74); and higher work flexibility (OR = 2.26; 95%CI 1.46–3.49) were good predictors of greater levels of satisfaction with telework. However, its major predictors were the company’s trust in teleworkers (OR = 4.50; 95%CI 2.89–7.02) and feeling good in the workspace at home (OR = 3.72; 95%CI 1.46–9.49). Conclusions Our findings point that work environment and organizational culture play a crucial role in affecting telework satisfaction. More studies are needed to monitor telework satisfaction and its effects on physical and mental health, so that Public and Occupational Health (and Safety) can be able to identify and implement the best interventions that allow promoting individual health and foster a healthy work environment for teleworkers.

scholarly journals Examining Mobile Technologies to Support Older Adults With Dementia Through the Lens of Personhood and Human Needs: Scoping Review

10.2196/15122 ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. e15122 ◽  
Author(s):  
Bon Mi Koo ◽  
Lisa M Vizer
Keyword(s):  
Adult Population ◽  
Leisure Activities ◽  
Health And Safety ◽  
Psychological Needs ◽  
Mobile Technologies ◽  
Daily Activities ◽  
Cochrane Central Register ◽  
Research Opportunities ◽  
Human Needs ◽  
People With Dementia

Background With the world’s rapidly growing older adult population, there is an increase in the number of people living with dementia. This growth leads to a strain on their caregivers and our health care system and to an increased attention on mitigating strain by using mobile technology to sustain the independence of people with dementia. However, less attention is given to whether these technologies meet the stated and unstated needs of people with dementia. Objective The aim of this study was to provide an overview of the current research on mobile technologies for people with dementia, considering the current research through the lens of personhood and human needs, and to identify any gaps that represent research opportunities. Methods We performed a systematic search in Medical Literature Analysis and Retrieval System Online (MEDLINE), Web of Science, PsycINFO, Cumulative Index of Nursing and Allied Health Literature (CINAHL), Excerpta Medica dataBASE (EMBASE), and the Cochrane Central Register of Controlled Trials (CENTRAL) in October 2018. We screened 5560 articles and identified 24 that met our inclusion and exclusion criteria. We then performed thematic analysis to organize the articles by the types of support mobile technologies provide and mapped those types of support to human needs to identify the gaps in support. Results Articles described research on mobile technologies that support people with dementia to (1) perform daily activities, (2) maintain social interaction, (3) aid memory, (4) engage in leisure activities, (5) track location, and (6) monitor health. At least one type of support mapped to each human need, with most supporting lower-level needs such as physiological and safety needs. Little attention seems to be paid to personhood. Conclusions Mobile technologies that support daily activities, relationships, memory, leisure activities, health, and safety can partially compensate for decreased function owing to dementia, but the human needs of people with dementia are often not adequately considered. Most technologies support basic physiological and safety needs, whereas many pay little attention to higher-level needs such as self-esteem and agency. Important research opportunities include using person-centered methods to develop technology to meet higher-level needs and to preserve personhood by incorporating human and psychological needs of people with dementia along with ethical considerations.

Sign in / Sign up

Export Citation Format

Share Document