Gary A. Mirka

Works (44)

Updated: July 5th, 2023 16:03

2009 journal article

An evaluation of arborist handsaws

APPLIED ERGONOMICS, 40(1), 8–14.

By: G. Mirka*, S. Jin  n & J. Hoyle

author keywords: Handsaws; Shoulder; Wrist; Biomechanics
MeSH headings : Adult; Analysis of Variance; Biomechanical Phenomena; Electromyography; Ergonomics; Female; Humans; Lifting; Male; Middle Aged; Muscle, Skeletal / physiology; Musculoskeletal Diseases / etiology; Musculoskeletal Diseases / prevention & control; Occupational Exposure / adverse effects; Occupational Health; Posture; Prospective Studies; Trees; Weight-Bearing / physiology
TL;DR: Understanding the stresses placed on the upper extremity during sawing activities, and design features that can reduce these stresses, may help saw designers to create products that reduce the risk of injury in workers who use handsaws. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

College students and computers: Assessment of usage patterns and musculoskeletal discomfort

WORK-A JOURNAL OF PREVENTION ASSESSMENT & REHABILITATION, 32(3), 285–298.

By: K. Noack-Cooper n, C. Sommerich n & G. Mirka n

author keywords: Computer; VDT; college students; musculoskeletal discomfort
MeSH headings : Adult; Female; Humans; Male; Musculoskeletal System / physiopathology; Pain; Surveys and Questionnaires; United States; Universities; User-Computer Interface; Young Adult
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Ergonomic Risk Factors for Low Back Pain in North Carolina Crab Pot and Gill Net Commercial Fishermen

AMERICAN JOURNAL OF INDUSTRIAL MEDICINE, 52(4), 311–321.

By: K. Kucera *, D. Loomis*, H. Lipscomb*, S. Marshall *, G. Mirka n & J. Daniels *

author keywords: epidemiology; musculoskeletal disorders; work exposure; PATH; CABS
MeSH headings : Adult; Animals; Brachyura; Ergonomics; Female; Fisheries; Humans; Lifting / adverse effects; Low Back Pain / epidemiology; Low Back Pain / etiology; Male; Middle Aged; North Carolina / epidemiology; Occupational Diseases / epidemiology; Occupational Diseases / etiology; Poisson Distribution; Retrospective Studies; Risk Factors; Surveys and Questionnaires
TL;DR: Tasks characterized by higher (unloading boat and sorting catch) and lower (running puller or net reel) ergonomic low back stress were associated with the occurrence of severe LBP. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

The effects of a suspended-load backpack on gait

GAIT & POSTURE, 29(1), 151–153.

By: X. Xu n , S. Hsiang n & G. Mirka*

author keywords: Suspended-load backpack; Ground reaction force
MeSH headings : Adult; Analysis of Variance; Back / physiology; Gait / physiology; Humans; Male; Posture / physiology; Shoulder / physiology; Walking / physiology; Weight-Bearing / physiology
TL;DR: The results showed that the response of the temporal variables were consistent with previous studies of conventional backpacks, and suggested that the motion of the load in a suspended-load backpack influences the gait biomechanics and should be considered as this technology advances. (via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2008 journal article

Evaluating ergonomic stresses in North Carolina commercial crab pot and gill net fishermen

JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE, 5(3), 182–196.

By: K. Kucera *, G. Mirka n, D. Loomis*, S. Marshall *, H. Lipscomb* & J. Daniels *

author keywords: exposure variability; low back; mixed model; variance
MeSH headings : Adolescent; Adult; Aged; Aged, 80 and over; Animals; Brachyura; Ergonomics / methods; Female; Fisheries; Fishes; Humans; Interviews as Topic; Lifting / adverse effects; Linear Models; Lumbosacral Region / physiology; Male; Middle Aged; North Carolina; Occupational Health / statistics & numerical data; Posture / physiology; Risk Assessment / methods; Shellfish; Workload
TL;DR: The magnitude and duration of musculoskeletal loads experienced by fishermen vary by the type of fishing and the tasks performed by the worker, and understanding this variability may help researchers target ergonomic interventions for this work population. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2008 journal article

The effects of obesity on lifting performance

APPLIED ERGONOMICS, 39(1), 93–98.

By: X. Xu n , G. Mirka n & S. Hsiang n

author keywords: lifting; low back pain
MeSH headings : Biomechanical Phenomena; Body Mass Index; Humans; Lifting; Low Back Pain / etiology; Lumbosacral Region / physiology; Male; North Carolina; Obesity; Occupational Health; Task Performance and Analysis; Weight-Bearing
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

A biomechanical analysis of anterior load carriage

ERGONOMICS, 50(12), 2104–2117.

By: A. Anderson n, K. Meador n, L. McClure n, D. Makrozahopoulos n, D. Brooks n & G. Mirka n

author keywords: lumbar; electromyography; motion analysis; agriculture
MeSH headings : Adult; Biomechanical Phenomena; Female; Humans; Lifting; Lumbosacral Region / physiology; Male; Muscle, Skeletal / physiology; Posture / physiology; Task Performance and Analysis; United States; Weight-Bearing / physiology
TL;DR: The results showed a significant effect of both walking speed and load height on trunk posture and trunk muscle activity levels in both the barbell and bucket experiments, and provide insight into muscle activation patterns in dynamic setting biomechanics, and have implications in industrial settings that require workers to carry loads in front of their bodies. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

An evaluation of backpack harness systems in non-neutral torso postures

APPLIED ERGONOMICS, 38(5), 541–547.

By: S. Southard n & G. Mirka n

author keywords: backpack; electromyography; awkward postures
MeSH headings : Adult; Back Injuries / prevention & control; Biomechanical Phenomena; Equipment Design; Ergonomics; Female; Humans; Male; Middle Aged; Postural Balance / physiology; United States; Weight-Bearing / physiology
TL;DR: The subjective and objective results show a significant improvement with the advanced harness system but also note an interesting interaction with degree of sagittal flexion, indicating a diminished effectiveness of the design improvements at forward flexed postures. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2007 journal article

An in vivo assessment of the low back response to prolonged flexion: Interplay between active and passive tissues

Clinical Biomechanics (Bristol, Avon), 22(9), 965–971.

By: G. Shin & G. Mirka

Source: NC State University Libraries
Added: August 6, 2018

2007 journal article

Ergonomic interventions for the reduction of back and shoulder biomechanical loading when weighing calves

INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 37(2), 103–110.

By: S. Southard n, J. Freeman n, J. Drum n & G. Mirka n

author keywords: livestock handling; lumbar injury; shoulder injury; biomechanical modeling; EMG
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

Learning curve analysis of a patient lift-assist device

APPLIED ERGONOMICS, 38(6), 765–771.

By: S. Reid* & G. Mirka*

author keywords: intervention; learning; musculoskeletal
MeSH headings : Adult; Ergonomics; Humans; Learning; Lifting; Musculoskeletal Diseases / prevention & control; North Carolina; Occupational Health; Self-Help Devices; Teaching
TL;DR: The results emphasize the importance in considering learning when introducing an intervention in the workplace, and showed that in this instance, training type had an immediate impact on productivity, but that this effect diminished over time. (via Semantic Scholar)
UN Sustainable Development Goal Categories
8. Decent Work and Economic Growth (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2007 journal article

The effect of a knee support on the biomechanical response of the low back

JOURNAL OF APPLIED BIOMECHANICS, 23(4), 275–281.

By: Y. Shu n, Z. Jiang n, X. Xu n  & G. Mirka n

author keywords: lumbar; EMG; kneeling
MeSH headings : Adaptation, Physiological / physiology; Adult; Back / physiology; Biomechanical Phenomena / methods; Female; Humans; Knee Joint / physiology; Lifting; Lumbar Vertebrae / physiology; Male; Muscle Contraction / physiology; Muscle, Skeletal / physiology; Postural Balance / physiology; Stress, Mechanical; Weight-Bearing / physiology
TL;DR: The results showed that the knee support device had no effect on the activation levels of the sampled muscles, indicating that the loss of the degree of freedom from the ankle joint during the kneeSupport condition had no impact on trunk extensor muscle response. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2006 journal article

A laboratory study of the effects of wrist splint orthoses on forearm muscle activity and upper extremity posture

HUMAN FACTORS, 48(3), 499–510.

By: Y. Shu n & G. Mirka n

MeSH headings : Adult; Female; Forearm / physiology; Humans; Male; North Carolina; Orthotic Devices; Posture; Wrist Injuries / therapy
TL;DR: WSOs increased forearm muscle activity at large wrist deviation angles and induced awkward shoulder postures in tasks requiring significant wrist deviation. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2006 journal article

An adaptive system identification model of the biomechanical response of the human trunk during sudden loading

JOURNAL OF BIOMECHANICAL ENGINEERING-TRANSACTIONS OF THE ASME, 128(2), 235–241.

By: B. Lawrence n, G. Buckner n & G. Mirka n

author keywords: sudden loading; system identification; lumbar
MeSH headings : Abdomen / physiology; Adaptation, Physiological / physiology; Adult; Back / physiology; Biomechanical Phenomena / methods; Computer Simulation; Elasticity; Feedback / physiology; Humans; Male; Models, Biological; Movement / physiology; Postural Balance / physiology; Posture / physiology; Reflex / physiology; Thorax / physiology; Weight-Bearing / physiology
TL;DR: System identification can be implemented with minimal error and used to gain more insight into the time-dependent trunk response to sudden loads and show estimates of system stiffness in good agreement with values in the literature. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Differences in trunk kinematics and ground reaction forces between older and younger adults during lifting

INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 36(9), 767–772.

By: G. Shin n, M. Nance n & G. Mirka n

author keywords: trunk kinematics; aging; lifting; ground reaction force
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Effects of age on muscle activity and upper body kinematics during a repetitive forearm supination task

INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 36(11), 951–957.

By: Z. Jiang n, Y. Shu n, J. Drum n, S. Reid n & G. Mirka n

author keywords: age; supination torque; electromyography; upper extremity kinematics; Baltimore Therapeutic Equipment Work Simulator; manual screwdriver
TL;DR: Empirical evidence is provided that age alone does not have a consistent impact on biomechanical responses during physically demanding work tasks. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Evaluation of a redesigned self-checkout station for wheelchair users

ASSISTIVE TECHNOLOGY, 18(1), 15–24.

By: K. Bajaj n, G. Mirka n, C. Sommerich n & H. Khachatoorian n

author keywords: ergonomics; universal design; retail checkout; wheelchair
MeSH headings : Architectural Accessibility; Commerce / instrumentation; Disabled Persons; Efficiency; Equipment Design; Ergonomics; Focus Groups; Humans; Posture; Self-Help Devices / trends; Task Performance and Analysis; Wheelchairs
TL;DR: The results of this study indicate that design for populations with specific limitations does not need to come at a cost of reduced accessibility for persons without these limitations; universal design is achievable. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Low-level exertions of the neck musculature: A study of research methods

Journal of Electromyography and Kinesiology, 16(5), 485–497.

By: S. Joines n , C. Sommerich n, G. Mirka n, J. Wilson n & S. Moon*

author keywords: electrode location; normalization method; muscle access; neck muscles
MeSH headings : Electromyography / methods; Electromyography / standards; Guidelines as Topic; Humans; Muscle Contraction / physiology; Neck Muscles / physiology; Posture / physiology; Reference Standards; Reproducibility of Results; Research Design; Sensitivity and Specificity; United States
TL;DR: The goal of the current research was to use empirical methods to answer specific methodological questions concerning use of sEMG in evaluation of the neck extensor system and showed significant differences in normalized EMG data between a posture-specific technique and a reference posture technique. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, NC State University Libraries, Crossref
Added: August 6, 2018

2005 journal article

A laboratory investigation of personality type and break-taking behavior

INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 35(3), 237–246.

By: S. Sudhakaran* & G. Mirka*

author keywords: personality type; shoulder; overhead work
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 journal article

A study of lifting tasks performed on laterally slanted ground surfaces

ERGONOMICS, 48(7), 782–795.

By: Z. Jiang n, G. Shin n, J. Freeman n, S. Reid n & G. Mirka n

author keywords: asymmetric lifting; surface angle; biomechanical model; slant; slope; slip
MeSH headings : Adult; Biomechanical Phenomena; Electromyography; Female; Humans; Lifting; Male; Posture; Task Performance and Analysis; United States; Weight-Bearing
TL;DR: The results of the dynamic lifting tasks revealed a consistent reduction in the peak dynamic L5/S1 moment and an increase in the instability producing lateral forces with increasing slant angle, providing quantitative insight into the response of the human lifter under these adverse lifting conditions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Adaptive system identification applied to the biomechanical response of the human trunk during sudden loading

JOURNAL OF BIOMECHANICS, 38(12), 2472–2479.

By: B. Lawrence n, G. Mirka n & G. Buckner n

author keywords: sudden loading; fatigue; training; lumbar; injury; modeling
MeSH headings : Abdomen / physiology; Acceleration; Adaptation, Physiological / physiology; Adult; Biomechanical Phenomena / methods; Computer Simulation; Elasticity; Head / physiology; Humans; Lumbar Vertebrae / physiology; Male; Models, Biological; Movement / physiology; Muscle Contraction; Muscle, Skeletal / physiology; Postural Balance / physiology; Posture / physiology; Stress, Mechanical; Thorax / physiology; Torque; Weight-Bearing / physiology
TL;DR: time-varying loading of the spine during sudden loading events and how these loading profiles are affected by workplace factors such as fatigue, expectation, and training can potentially lead to intervention strategies that can reduce these risks. (via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being (Web of Science; OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Assessing the effects of positive feedback and reinforcement in the introduction phase of an ergonomic intervention

HUMAN FACTORS, 47(3), 526–535.

By: D. Brandenburg n & G. Mirka n

MeSH headings : Adult; Feedback; Female; Humans; Male; Middle Aged; Reinforcement, Psychology; Task Performance and Analysis
TL;DR: The reinforcement technique evaluated in this paper has yielded consistently positive effects in ongoing ergonomic intervention research and Applications of this research include improving workers' acceptance of ergonomic interventions in industrial and other settings. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Development of an ergonomics guideline for the furniture manufacturing industry

APPLIED ERGONOMICS, 36(2), 241–247.

By: G. Mirka n

author keywords: furniture industry; ergonomics guideline
MeSH headings : Ergonomics; Guidelines as Topic; Humans; Industry; Interior Design and Furnishings; North Carolina; United States; United States Occupational Safety and Health Administration
TL;DR: This guideline was developed through an industry-research-government partnership and made strategic use of the unique attributes that each sector brought to this effort, and some of the lessons learned contained herein would be helpful to others considering the prospect of developing such a guideline for their industry. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 journal article

The effect of a repetitive, fatiguing lifting task on horizontal ground reaction forces

JOURNAL OF APPLIED BIOMECHANICS, 21(3), 260–270.

By: Y. Shu n, J. Drum n, S. Southard n, G. Shin n & G. Mirka n

author keywords: slip; agriculture; lumbar injury
MeSH headings : Accidental Falls / prevention & control; Adult; Back / physiology; Back Injuries / prevention & control; Biomechanical Phenomena; Fatigue; Female; Humans; Male; Muscle, Skeletal / physiology; Occupations; Task Performance and Analysis; Weight Lifting / physiology
TL;DR: Evaluating the effects of lifting-induced fatigue of the low back extensors on lifting kinematics and ground reaction forces indicates significant increases in the magnitude of the peak anterior/posterior and peak lateral shear forces with increasing time into the lifting bout. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Use of the CABS methodology to assess biomechanical stress in commercial crab fishermen

APPLIED ERGONOMICS, 36(1), 61–70.

By: G. Mirka n, G. Shin n, K. Kucera * & D. Loomis*

author keywords: biomechanics; low back injury; commercial crab fishing
MeSH headings : Biomechanical Phenomena; Fisheries; Humans; Image Processing, Computer-Assisted; Lumbar Vertebrae / physiopathology; Male; Occupational Diseases / physiopathology; Posture / physiology; Ships; Stress, Physiological / physiopathology; Weight-Bearing / physiology
TL;DR: The results of this analysis show significant inter and intra-crewmember variability in the stress measures during regular daily work activities, and a more even distribution of the high stress activities between the crewmembers. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Cervicobrachial muscle response to cognitive load in a dual-task scenario

ERGONOMICS, 47(6), 625–645.

By: E. Leyman n, G. Mirka n, D. Kaber n & C. Sommerich n

author keywords: attention; cognitive task; multiple-task performance; electromyography; mental workload; physiological measures; secondary-task performance; stress; visual display unit
MeSH headings : Adaptation, Physiological; Adult; Cognition; Female; Humans; Male; Mental Processes; Movement; Muscle, Skeletal / physiology; Postural Balance / physiology; Psychomotor Performance / physiology; Task Performance and Analysis; Workload / psychology
TL;DR: Examination of the impact of cognitive load in office-type tasks on physical-stress response using a dual-task paradigm involving a primary cognitive task and secondary typing task revealed that the primary task causing the highest level of perceived workload also produced 61% higher muscle activity in the right trapezius. (via Semantic Scholar)
UN Sustainable Development Goal Categories
8. Decent Work and Economic Growth (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Influence of knee angle and individual flexibility on the flexion-relaxation response of the low back musculature

JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY, 14(4), 485–494.

By: G. Shin n, Y. Shu  n, Z. Li  n, Z. Jiang  n & G. Mirka n

author keywords: EMG; flexion-relaxation; flexibility; knee angle
MeSH headings : Adult; Analysis of Variance; Back; Biomechanical Phenomena; Electromyography; Humans; Isometric Contraction / physiology; Knee Joint / physiology; Leg / physiology; Male; Muscle Contraction / physiology; Muscle Relaxation / physiology; Muscle, Skeletal / physiology; Posture / physiology; Thigh / physiology; Thorax; Weight-Bearing / physiology
TL;DR: Evaluated flexion-relaxation response results confirm previous results with regard to the contribution of the passive tissues to the overall trunk extension moment but also show that the tension in the bi-articular biceps femoris, which was influenced by knee flexion angle and flexibility, affects the ratio of active extensor moment contributions of the lumbar extensor musculature to passive extensor moments contributions from the muscular and ligamentous tissues. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 journal article

Productivity and ergonomic investigation of bent-handle pliers

HUMAN FACTORS, 46(2), 234–243.

By: K. Duke n, G. Mirka n & C. Sommerich n

MeSH headings : Adult; Efficiency; Equipment Design; Female; Humans; Male; Posture; Task Performance and Analysis
TL;DR: The results indicate that the beneficial effects of the bent-handle pliers are task dependent and that the ergonomic utility of bent handle pliers can be considerable but that the 3-D kinematics characteristics of the task must be considered. (via Semantic Scholar)
UN Sustainable Development Goal Categories
8. Decent Work and Economic Growth (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 journal article

The effects of a sloped ground surface on trunk kinematics and L5/S1 moment during lifting

ERGONOMICS, 47(6), 646–659.

By: G. Shin n & G. Mirka n

author keywords: lifting technique; slope; biomechanical model; L5; S1 joint moment
MeSH headings : Adult; Biomechanical Phenomena; Female; Humans; Joints / physiology; Lifting; Lumbar Vertebrae; Male; Muscle, Skeletal / physiology; Posture; Task Performance and Analysis; Torque; Work / physiology
TL;DR: The results of this study indicate that ground slope angle does influence the lifting kinematics and kinetics and therefore needs to be considered when evaluating risk of low back injury in these working conditions. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2003 journal article

Ergonomic interventions for the reduction of low back stress in framing carpenters in the home building industry

INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 31(6), 397–409.

By: G. Mirka n, M. Monroe n, T. Nay n, H. Lipscomb* & D. Kelaher n

author keywords: construction; low back disorders; engineering controls
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2002 journal article

An investigation of ergonomic interventions in dental hygiene work

Applied Ergonomics, 33(2), 175–184.

By: C. Smith, C. Sommerich, G. Mirka & M. George

Source: NC State University Libraries
Added: August 6, 2018

2002 journal article

Effect of grip span on lateral pinch grip strength

HUMAN FACTORS, 44(4), 569–577.

By: C. Shivers n, G. Mirka n & D. Kaber n

MeSH headings : Adult; Anthropometry; Female; Fingers / physiology; Hand Strength / physiology; Humans; Isometric Contraction / physiology; Male; Orientation / physiology; Physical Exertion / physiology; Psychomotor Performance / physiology; Reference Values; Thumb / physiology; Time Factors
TL;DR: A significant effect of lateral pinch grip span is shown, with strength at the maximum functional lateral pinch grips span 40% higher than that found at the smallest lateral pinch Grip span considered. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2002 journal article

Ergonomic interventions for the furniture manufacturing industry. Part I - lift assist devices

INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 29(5), 263–273.

By: G. Mirka n, C. Smith n, C. Shivers n & J. Taylor n

author keywords: low back injury; intervention research; furniture industry; trunk motion; trunk posture
TL;DR: The ergonomic intervention research documented in this report shows the impact of engineering controls for the furniture manufacturing industry on the risk factors for work-related low back injuries. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2002 journal article

Ergonomic interventions for the furniture manufacturing industry. Part II - Handtools

INTERNATIONAL JOURNAL OF INDUSTRIAL ERGONOMICS, 29(5), 275–287.

By: G. Mirka n, C. Shivers n, C. Smith n & J. Taylor n

author keywords: cumulative trauma disorders; upper extremity; intervention research; furniture industry; EMG
TL;DR: The ergonomic intervention research described in this report documents a reduction in exposure to risk factors for upper extremity cumulative trauma disorders for three work activities in the furniture manufacturing industry. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

A field evaluation of monitor placement effects in VDT users

APPLIED ERGONOMICS, 32(4), 313–325.

By: J. Psihogios*, C. Sommerich n, G. Mirka n & S. Moon*

author keywords: visual display terminal; cervical; monitor
MeSH headings : Adult; Anthropometry; Computer Terminals; Ergometry; Evaluation Studies as Topic; Facility Design and Construction; Female; Humans; Interior Design and Furnishings; Male; Muscle, Skeletal / physiopathology; Posture / physiology; Videotape Recording
TL;DR: Overall, there seems to be consistent evidence to support mid-level or somewhat higher placement, as a rule-of-thumb, considering preferred gaze angle and musculoskeletal concerns, however, optimal placement may be lower for some individuals or tasks. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2001 journal article

The use of mirrors during an assembly task: a study of ergonomics and productivity

Ergonomics, 44(2), 215–228.

By: T. Lutz n, H. Starr n, C. Smith n, A. Stewart n, M. Monroe n, S. Joines  n, G. Mirka n

UN Sustainable Development Goal Categories
Source: NC State University Libraries
Added: August 6, 2018

2000 journal article

An empirical approach to characterizing trunk muscle coactivation using simulation input modeling techniques

JOURNAL OF BIOMECHANICS, 33(12), 1701–1704.

By: G. Mirka n, N. Glasscock n, P. Stanfield n & . Wilson  n

author keywords: EMG; lumbar; injury; modeling; simulation
MeSH headings : Acceleration; Adult; Computer Simulation; Electromyography; Female; Humans; Lumbosacral Region; Male; Models, Biological; Muscle, Skeletal / physiology; Physical Exertion; Torque; Weight Lifting / physiology
TL;DR: Electromyographic data collected as they performed controlled trunk extension exertions were used to develop marginal distributions of trunk muscle activity as well as a 10x10 correlation matrix that described how the muscles cooperated to produce these extension torques, which were combined to generate multivariate distributions describing the coactivation of the trunk musculature. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Continuous assessment of back stress (CABS): A new method to quantify low-back stress in jobs with variable biomechanical demands

HUMAN FACTORS, 42(2), 209–225.

By: G. Mirka n, D. Kelaher n, D. Nay n & B. Lawrence n

MeSH headings : Back / physiology; Back Injuries / etiology; Biomechanical Phenomena; Cumulative Trauma Disorders / etiology; Data Interpretation, Statistical; Female; Humans; Male; Models, Theoretical; National Institute for Occupational Safety and Health, U.S.; Occupational Diseases / etiology; Occupations; Risk Assessment; Stress, Physiological / etiology; Task Performance and Analysis; United States; Workload
TL;DR: A hybrid assessment methodology that employs established assessment tools and then represents their evaluations in a way that emphasizes the distributions of biomechanical stress is developed, illustrating the necessity for more advanced low-back injury risk assessment techniques for jobs with highly variable manual materials handling requirements. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Effects of semi-rigid arch-support orthotics: an investigation with potential ergonomic implications

APPLIED ERGONOMICS, 31(5), 515–522.

By: D. Kelaher n, G. Mirka n & K. Dudziak n

author keywords: orthotics; posture; stability; fatigue; discomfort
MeSH headings : Adult; Analysis of Variance; Anthropometry; Biomechanical Phenomena; Ergonomics / instrumentation; Ergonomics / statistics & numerical data; Fatigue / prevention & control; Female; Foot; Humans; Male; Muscles / physiology; Orthotic Devices / statistics & numerical data; Polyurethanes; Posture / physiology; Shoes / statistics & numerical data; Time Factors
UN Sustainable Development Goal Categories
5. Gender Equality (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2000 journal article

Transverse-contour modeling of trunk muscle-distributed forces and spinal loads during lifting and twisting

Spine (Philadelphia, Pa. 1976), 25(2), 180–189.

By: J. Davis & G. Mirka

Source: NC State University Libraries
Added: August 6, 2018

1999 journal article

The Effect of Personality Type on Muscle Coactivation during Elbow Flexion

Human Factors: The Journal of the Human Factors and Ergonomics Society, 41(1), 51–60.

By: N. Glasscock n, K. Turville n, S. Joines n  & G. Mirka n

MeSH headings : Adult; Analysis of Variance; Biomechanical Phenomena; Elbow Joint / physiology; Ergonomics; Female; Humans; Male; Middle Aged; Muscle Contraction / physiology; Psychomotor Performance; Type A Personality
TL;DR: Although the study was somewhat limited in its size and scope, the results indicate that certain psychosocial factors may be more than a filter in postinjury response and may directly influence biomechanical loading. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Sources: Web Of Science, Crossref, NC State University Libraries
Added: August 6, 2018

1998 chapter

Managing work-related musculoskeletal injuries

In W. Karwowski & G. Salvendy (Eds.), Ergonomics in manufacturing: Raising productivity through workplace improvement (Ch. 19). Dearborn, Mich.: Society of Manufacturing Engineers; Norcross, Ga.: Engineering & Management Press.

By: C. Sommerich & G. Mirka

Ed(s): W. Karwowski & G. Salvendy

Source: NC State University Libraries
Added: August 6, 2018

1998 journal article

The effects of video display terminal height on the operator: a comparison of the 15 degrees and 40 degrees recommendations

APPLIED ERGONOMICS, 29(4), 239–246.

By: K. Turville n, J. Psihogios n, T. Ulmer n & G. Mirka n

author keywords: VDT; biomechanics; working posture; muscular activity
MeSH headings : Adult; Biomechanical Phenomena; Computer Terminals; Electromyography; Ergonomics; Female; Humans; Male; Muscle Contraction; Muscle, Skeletal / physiology
TL;DR: The 40° VDT position showed significantly greater head tilt angles and higher muscle activity levels for six of the 10 neck, shoulder and back muscles sampled and no significant differences in visual acuity, operator performance or heart rate were detected as a result of monitor location. (via Semantic Scholar)
UN Sustainable Development Goal Categories
4. Quality Education (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

1997 journal article

Selective activation of the external oblique musculature during axial torque production

Clinical Biomechanics (Bristol, Avon), 12(3), 172–180.

By: G. Mirka, D. Kelaher, A. Baker, A. Harrison & J. Davis

Source: NC State University Libraries
Added: August 6, 2018

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