scholarly journals A Study of Postural Safety and Low-Cost Electromyography (EMG) Device Towards Grocery Workers in Kota Samarahan, Sarawak

2020 ◽  
Vol 4 (4) ◽  
pp. 1-5
Author(s):  
Mohd Azrin Mohd Said ◽  
Keyword(s):  
Upper Limb ◽  
Muscle Activity ◽  
Low Cost ◽  
The Body ◽  
Body Posture ◽  
Low Back ◽  
Emg Signal ◽  
Lower Back

Body posture is one of the most important parts when lifting an object as it can causes injury if the wrong technique and body posture were used. A worker will injure their low back if a bad posture is not in consideration. A good body posture is recommended among workers to reduce the chance of injury while lifting and improve their postural safety. The main objectives of this study are to observe the body posture of the worker during lifting and study the comparison of using lower back support when lifting. It also investigates the muscle activity of the worker during heavy lifting using EMG and simulates the worker's movement using CATIA Software for Rapid Upper Limb Assessment (RULA) results. The selected grocery was chosen in Kota Samarahan, Sarawak with 7 male respondents are identified to undergo this study. The results show that the worker with lower back support tends to show raw EMG signal with lower muscle activity compared to without using lower back support. Thus, using belt support can reduce muscle activity by up to 67.4% compare to not wearing back support. Raw EMG signals also show 3010 amplitude (mV) muscle activity if postural safety of the workers improved by following the NIOSH lifting Recommendations.

Critical analysis and unique management of Gridhrasi w.s.r. to Sciatica - A Case Report

2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Dr. Rangarajan B. ◽  
Dr. Muralidhara .
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Case Report ◽  
Total Population ◽  
The Body ◽  
Walking Distance ◽  
Common Symptom ◽  
Low Back ◽  
Short Term ◽  
Lower Back

Gridhrasi (Sciatica) is a disorder in which low back pain is found, that spreads through the hip, to the back of the thigh and down the inside of the leg. Mechanical low back pain (LBP) remains the second most common symptom related reason for seeing a physician. 85% of total population will experience an episode of mechanical LBP at some point during their lifetime. Fortunately, the LBP resolves for the vast majority within 2-4 weeks. There are many causes for low back pain, however true sciatica is a symptom of inflammation or compression of the sciatica nerve. The sciatica nerve carries impulses between nerve roots in the lower back and the muscles and nerve of the buttocks, thighs and lower legs. Compression of a nerve root often occurs as a result of damage to one of the discs between the vertebrae. In some cases, sciatic pain radiate from other nerves in the body. This is called referred pain. Pain associated with sciatica often is severe, sharp and shooting. It may be accompanied by other symptom, such as numbness, tingling, weakness and sensitivity to touch. There is only conservative treatment giving short term relief in pain or surgical intervention with side effect. But these are not successful and therefore those who are suffering from this are always in search of result oriented remedy. Walking distance and SLR test were taken for assessment parameter, VAS score was adopted for pain. Before treatment patient was not able to walk even 4 to 5 steps due to severe pain, was brought on stretcher and his SLR was 30° of right side. After 22 days of treatment he was able to walk up to 500 meters without any difficulty, SLR was changed to 60° and patient had got 80 % relief in pain. This case report showed that Ayurvedic protocol is potent and safe in the treatment of Gridhrasi.

scholarly journals Integrated Measurement System of Postural Angle and Electromyography Signal for Manual Materials Handling Assessment

2021 ◽  
Vol 13 (6) ◽  
Author(s):  
Isa Halim ◽  
◽  
Adi Saptari ◽  
Mohd Fairil Abulais ◽  
Vinothini Padmanathan ◽  
...  
Keyword(s):  
Measurement System ◽  
Muscle Activity ◽  
Integrated System ◽  
Body Posture ◽  
Microsoft Kinect ◽  
Industrial Workers ◽  
Materials Handling ◽  
Emg Signal ◽  
Manual Materials Handling ◽  
Effort Assessment

Improper design of manual materials handling (MMH) tasks at workplace can cause musculoskeletal disorders such as muscle strain to industrial workers. To avoid these disorders, ergonomists and engineers require an integrated measurement system which allows them to study the interaction of body posture and muscle effort during performing MMH tasks. However, far too little attention has been paid to develop an integrated measurement system of body posture and muscle activity for assessing MMH tasks. The aim of this study was to develop and test a prototype of integrated system for measuring postural angles and electromyography (EMG) signals of a worker who doing MMH tasks. The Microsoft Visual Studio software, a 3D camera (Microsoft Kinect), Advancer Technologies muscle sensors and a microcontroller (NI DAQ USB-6000) were applied to develop the integrated postural angle and EMG signal measurement system. Additionally, a graphical user interface was created in the system to enable users to perform body posture and muscle effort assessment simultaneously. Based on the testing results, this study concluded that the patterns of EMG signals are depending on the postural angles which consistent with the findings of established works. Further study is required to enhance the validity, reliability and usability of the prototype so that it may facilitate ergonomists and engineers to assess work posture and muscle activity during MMH task.

scholarly journals Impact of a Chest Support on Lower Back Muscles Activity During Forward Bending

2010 ◽  
Vol 7 (2) ◽  
pp. 131-142 ◽  
Author(s):  
Armaĝan Albayrak ◽  
Richard H. M. Goossens ◽  
Chris J. Snijders ◽  
Huib de Ridder ◽  
Geert Kazemier
Keyword(s):  
Surgical Procedures ◽  
Muscle Activity ◽  
Body Posture ◽  
Back Muscle ◽  
Leg Muscles ◽  
Lower Back ◽  
Forward Bending ◽  
User Groups ◽  
Supporting Force ◽  
The Impact

The present study is based on previous research on the poor body posture of surgeons and their experienced discomfort during surgical procedures. Since surgeons have head-bent and back-bent posture during open surgical procedures, a chest support is a viable supporting principle. This support is meant to reduce lower back pain by minimising lower back muscle activity. The aim of this study is to investigate the impact of a chest support on lower back muscle activity during forward bending and to establish a possible relation between supporting force and the kind of balancing strategy a person adopts. Use of the chest support shows a significant reduction of muscle activity in the lower back and leg muscles. Within the participants three user groups are identified as “sceptical users”, “non-trusters” and “fully trusters”, each following a different balancing strategy. Since there are different kinds of users, the designed body support should offer the possibility for altering the posture and should not constrain the user to take a certain body posture.

scholarly journals Effects of Core Stability Exercises, Lumbar Lordosis and Low-Back Pain: A Systematic Review

2021 ◽  
Vol 5 (1) ◽  
pp. 17-23
Author(s):  
Gojko Skundric ◽  
◽  
Veljko Vukicevic ◽  
Nikola Lukic ◽  
◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Lower Back Pain ◽  
Lumbar Lordosis ◽  
The Body ◽  
Core Stability ◽  
Low Back ◽  
Lower Back ◽  
The Stability ◽  
Positive Effect

Core stability has a very positive effect on the prevention of lumbar lordosis and lower back pain. The main focus of this paper was on a review of the available literature on the influence of trunk stability on lower back pain and lumbar lordosis. The two electronic databases researched for collecting articles are PubMed and ScienceDirect. A search was conducted by title, taking a predefined combination of the following keywords into account: low back pain, core stability, training, sports. Screening processes are summarized through a PRISMA flow chart. 408 studies were identified, of which 20 met the inclusion criteria. It was concluded that exercise on the stability of the pelvic nucleus and muscles is recommended as the simplest and most favorable prevention of lower back pain and lumbar lordosis. The stability of the nucleus helps to overcome the main causes and deprive the body of functional disorders and pain.

Research on Data Fusion Technology of Body Posture Detection Based on Kalman Filter

2014 ◽  
Vol 668-669 ◽  
pp. 1003-1006 ◽  
Author(s):  
Xian Wei Wang ◽  
Fu Cheng Cao
Keyword(s):  
Kalman Filter ◽  
Attitude Determination ◽  
Inertial Sensors ◽  
Low Cost ◽  
Micro Electro Mechanical System ◽  
Angle Measurement ◽  
The Body ◽  
Body Posture ◽  
Posture Estimation ◽  
The Impact

This paper discusses the body posture detection problem using low cost Micro-Electro-Mechanical System (MEMS) inertial sensors, for which a complementary sensor fusion solution is proposed. Considering the impact from the noise and bias drifts, through Kalman filter to complete the multi-sensor information fusion, achieved an accurate attitude determination. The experimental results show that, after using Kalman filtering algorithm to fuse acceleration sensor and signal gyroscope, it can effectively eliminate the accumulative error and significantly better dynamic characteristics of attitude angle measurement, Improving the reliability and accuracy of body posture estimation.

Design Implementation and Analysis of a Universal Lumbosacral Support Device to Prevent Low Back Pain in Motorized Two-Wheeler Riders

2017 ◽  
Author(s):  
Krishna Pedaprolu ◽  
Satyam Rajput ◽  
Sharmila Nageswaran
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Lower Back Pain ◽  
Chronic Low Back Pain ◽  
Compression Fracture ◽  
The Body ◽  
Low Back ◽  
Persistent Symptoms ◽  
Acute Low Back Pain ◽  
Lower Back

According to National Institute of Neurological Disorders and Stroke (NINDS), a division of National Institutes of Health (NIH), about 80% adults suffer from low back pain at some point in time and about 2 out of 10 people who are affected by acute low back pain develop chronic low back pain with persistent symptoms at one year [1]. Though in some cases, treatment does relieve chronic low back pain, but in other cases, pain persists despite treatment. Mostly, the lower back pain is of mechanical nature, i.e., disruption in the way the components of the back (the spine, muscle, intervertebral discs, and nerves) fit together and move. The causes of lower back pain can be imputed to various conditions such as sprains and strains, osteoarthritis, herniated discs, whiplash, compression fracture, scoliosis, stenosis, inflammation of joints, osteoporosis. It not only causes pain, but also severs the economy of a nation. It is a major contributor to missed workdays [1]. Research indicates that the total indirect costs due to back pain accrue to more than $100 billion annually [2]. Not many people can afford traveling by car or taxi to office, especially in developing countries and in cities with high traffic, where people prefer to travel by two-wheelers for their access to work and other amenities. However, people with lumbar problems are recommended not to use two-wheelers as the movement of the body on uneven roads or while braking/accelerating may increase the pain and discomfort. This reduces the productivity of not only the individual and the firm but also the productivity of the country as a whole.

scholarly journals Effects of Dental Occlusion on Body Sway, Upper Body Muscle Activity and Shooting Performance in Pistol Shooters

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Amândio A. Dias ◽  
Luís A. Redinha ◽  
Luís M. Silva ◽  
Pedro C. Pezarat-Correia
Keyword(s):  
Upper Limb ◽  
Muscle Activity ◽  
National Level ◽  
Body Posture ◽  
Upper Body ◽  
Body Sway ◽  
Dental Occlusion ◽  
Emg Activity ◽  
Experimental Conditions ◽  
Occlusal Splints

Occlusal splints, to some extent, have been related to reduced body sway in a static position and increased muscle activity in the upper limbs. However, how dental occlusion status affects sports performance remains unclear. Here, we investigated whether occlusal splints that reposition the temporomandibular joint (TMJ) influenced body posture, muscle activity, and performance in 10-meter pistol shooters. Thirteen national-level male shooters (age = 38.8 ± 10.9 yrs) were recruited for this study, and cleared of any cervical pathology. An occlusal splint (OS) and a placebo splint (PS) were fabricated for each of the subjects, with the mandibular and maxillary position verified by an expert dentist, with the aid of an adjustable articulator. Surface electromyography (EMG) was assessed in the upper limb that holds the pistol while the subjects were standing on a force platform. Subjects performed two series of 10 shots for each of the three experimental conditions (OS, PS, N (no splint)) in randomized order, with the mandible in a rest position. Results revealed similar centre of pressure (COP) parameters in all conditions, despite a reduction in the average oscillation area caused by the OS. There were also no significant differences in EMG activity between conditions in the five upper limb muscles monitored. Consistent with this, shooting performance was similar in all conditions, despite a reduction in shot dispersion in subjects using OS. Thus, changes in dental occlusion status induced by OS do not affect body posture, upper limb EMG muscle activity, or shot performance in healthy male pistol shooters.

scholarly journals EVALUASI SIKAP KERJA SEBAGAI RISIKO NYERI PUNGGUNG BAWAH

2019 ◽  
Vol 5 (1) ◽  
pp. 48-55
Author(s):  
I Gede Purnawinadi ◽  
Andrew Rumegang
Keyword(s):  
At Risk ◽  
Low Back Pain ◽  
Back Pain ◽  
Lower Back Pain ◽  
Work Attitudes ◽  
The Body ◽  
Entire Body ◽  
Low Back ◽  
Work Attitude ◽  
Lower Back

ABSTRACT Introduction: Low back pain (NPB) is the second leading cause of global disability in musculoskeletal problems, with the highest prevalence in Indonesia being among farmers. A non-ergonomic work attitude is at risk for lower back pain. Purpose: This study identified work attitudes as a risk in relation to the incidence of low back pain. Method: This study was an observational analytic cross-sectional approach conducted on 32 farmers in Karowa Village using Rapid Entire Body Assessment (REBA) to evaluate work attitudes and questionnaires to measure complaints of lower back pain. Results: The working attitude of farmers was 77.4% at high risk and 93.7% of farmers complained of moderate pain. There is a significant relationship between work attitude and lower back pain in farmers with a positive and strong direction. Discussion: The more it is not ergonomic the working attitude of farmers is, the more at risk of developing complaints of lower back pain. Community and farmers are expected to do work safely such as avoiding overloading of shoulders, often changing positions or stretching the body while working, and if possible do work alternately.   Keywords: Evaluation, Work Attitude, Risk, Pain, Lower Back.

Ayurvedic Management of Ankylosing Spondylitis - A Case Report

2018 ◽  
Vol 3 (4) ◽  
Author(s):  
Dr. Vibhu Powar ◽  
Dr. Totad Muttappa ◽  
Dr. Vasantha B ◽  
Dr. Girish KJ ◽  
Dr. Rachana MS
Keyword(s):  
Ankylosing Spondylitis ◽  
Upper Limb ◽  
Axial Skeleton ◽  
The Body ◽  
Treatment Modalities ◽  
Low Back ◽  
Female Ratio ◽  
Oral Medications ◽  
Before And After ◽  
Ayurvedic Treatment

Introduction: Ankylosing Spondylitis (AS) is a sero negative chronic inflammatory arthritis of unknown cause that primarily affects the axial skeleton which usually begins in the second or third decade of life with a male to female ratio of 3:1. The prevalence rate of AS in India is 0.03%. It is clinically correlated to Danda Apatanaka in Ayurveda. It is caused due to the vitiated Vata and Kapha Dosha which enters the Dhamani and causes stiffness of the body. Due to its known complications and its tendency to hamper the quality of life, there is a need for an effective Ayurvedic intervention. This report is based on a case of Ankylosing Spondylitis which presented with pricking pain over nape of the neck and low back associated with stiffness and restricted movements, swelling over nape of neck right shoulder and right side of face, associated with restricted movements of right upper limb. Methods: This case was diagnosed as Danda Apatanaka and was treated with Basti Karma, Abhyanga along with oral medications. Assessment was done before and after treatment using relevant scales. Result: After 2 weeks of treatment pain and swelling over the nape of neck, right shoulder and face resolved completely, pain and stiffness of low back reduced, pain in right upper limb reduced and patient was able to perform normal movements. Stiffness of neck still persisted. Conclusion: Ankylosing spondylitis can be effectively managed by Ayurvedic treatment modalities after proper assessment of the involved Dosha and Dhatus.

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