Edward F. Krieg

National Institute for Occupational Safety and Health

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James S. Kesner

National Institute for Occupational Safety and Health

Thaís C. Morata

National Institute for Occupational Safety and Health

Robert Dick

National Institute for Occupational Safety and Health

Brian D. Lowe

National Institute for Occupational Safety and Health

Rickie R. Davis

United States Public Health Service

William J. Murphy

Fermi Research Alliance

Mary Ann Butler

University of Minnesota

Edwin A. Knecht

National Institute for Occupational Safety and Health

David Chrislip

National Institute for Occupational Safety and Health

John C. Clark

University of Cambridge

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National Institute for Occupational Safety and Health

120

Centers for Disease Control and Prevention

United States Department of Health and Human Services

University of Cincinnati

University of Cincinnati Medical Center

Johns Hopkins University

United States Department of Veterans Affairs

Pennsylvania State University

Veterans Health Administration

Center for Surveillance, Epidemiology, and Laboratory Services

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Inter-laboratory comparison of three earplug fit-test systems

Journal of Occupational and Environmental Hygiene (2016)

David C. Byrne William J. Murphy Edward F. Krieg Robert M. Ghent Kevin L. Michael

The National Institute for Occupational Safety and Health (NIOSH) sponsored tests of three earplug fit-test systems (NIOSH HPD Well-Fit, Michael & Associates FitCheck, and Honeywell Safety Products VeriPRO). Each system was compared to laboratory-based real-ear attenuation at threshold (REAT) measurements in a sound field according to ANSI/ASA S12.6-2008 at the NIOSH, Honeywell Safety Products, and Michael & Associates testing laboratories. An identical study was conducted independently at the U.S. Army Aeromedical Research Laboratory (USAARL), which provided their data for inclusion in this article. The Howard Leight Airsoft premolded earplug was tested with twenty subjects at each of the four participating laboratories. The occluded fit of the earplug was maintained during testing with a soundfield-based laboratory REAT system as well as all three headphone-based fit-test systems. The Michael & Associates lab had the highest average A-weighted attenuations and smallest standard deviations. The NIOSH lab had the lowest average attenuations and the largest standard deviations. Differences in octave-band attenuations between each fit-test system and the American National Standards Institute (ANSI) sound field method were calculated (Attenfit-test - AttenANSI). A-weighted attenuations measured with FitCheck and HPD Well-Fit systems demonstrated approximately ±2 dB agreement with the ANSI sound field method, but A-weighted attenuations measured with the VeriPRO system underestimated the ANSI laboratory attenuations. For each of the fit-test systems, the average A-weighted attenuation across the four laboratories was not significantly greater than the average of the ANSI sound field method. Standard deviations for residual attenuation differences were about ±2 dB for FitCheck and HPD Well-Fit compared to ±4 dB for VeriPRO. Individual labs exhibited a range of agreement from less than a dB to as much as 9.4 dB difference with ANSI and REAT estimates. Factors such as the experience of study participants and test administrators, and the fit-test psychometric tasks are suggested as possible contributors to the observed results.

National standard

10.1080/15459624.2016.1250002

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Citations (15)

(2-Methoxyethoxy)acetic acid: a urinary biomarker of exposure for jet fuel JP-8

International Archives of Occupational and Environmental Health (2011)

Clayton B’Hymer Patricia I. Mathias Edward F. Krieg Kenneth L. Cheever Christine Toennis

Jet fuel

10.1007/s00420-011-0687-7

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Citations (11)

A Cross-Sectional Study of Risk Factors for Musculoskeletal Symptoms in the Workplace Using Data From the General Social Survey (GSS)

Journal of Occupational and Environmental Medicine (2007)

Thomas Waters Robert Dick Joi Davis-Barkley Edward F. Krieg

Objective: Assessments of potential risk factors for musculoskeletal disorders (MSDs) from large, national study populations using personal interviews are critical to our understanding of exposure-response relationships. To address this need, we analyzed two outcome measures—self-reported back pain and upper extremity pain—from the quality of work life (QWL) module of the General Social Survey (GSS). We investigated several individual, psychosocial, and physical factors for their relationship to these outcome measures. Methods: The study population included US adults, noninstitutionalized, English-speaking, aged 18 years or older, and employed at least part time (≥20 hr/wk). Final sample size was 1484 workers. Results: Variables of physical exposure significantly increased the risk of both low back pain and upper extremity pain. Multiple injuries and some psychosocial factors were associated with MSDs, and there was an additive effect on risk of MSDs with exposure to both physical exposure and work stress. Conclusions: A relationship between physical loads and musculoskeletal disorders was indicated by the results, which will enable creating a database for tracking reports of MSDs in the US working population.

Cross-sectional study

Musculoskeletal disorder

Back Pain

10.1097/jom.0b013e3180322559

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Citations (88)

Further Trends in Work-Related Musculoskeletal Disorders

Journal of Occupational and Environmental Medicine (2015)

Robert Dick Brian D. Lowe Ming‐Lun Lu Edward F. Krieg

To report trends for the risk of musculoskeletal disorders.Three Quality of Work Life surveys examine the risk factors for musculoskeletal disorders.Findings similar for several risk factors, but differences across the reporting years may reflect economic conditions. Respondent numbers in 2010 were reduced, some risk factors had pattern changes, and there were sex and age differences. Trend analysis showed most significant changes were for the "work fast" risk factor. New 2010 "physical effort" item showed sex differences, and items reflective of total worker health showed strong associations with "back pain" and "pain in arms."Intervention strategies should focus on physical exposures and psychosocial risk factors (work stress, safety climate, job satisfaction, supervisor support, work fast, work freedom, work time) that have been consistently related to reports of musculoskeletal disorders. Economic conditions will influence some psychosocial risk factors.

Work-related musculoskeletal disorders

Musculoskeletal disorder

10.1097/jom.0000000000000501

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Citations (25)

Temporary and Permanent Auditory Effects Associated with Occupational Coexposure to Low Levels of Noise and Solvents

International Journal of Environmental Research and Public Health (2022)

Vanessa Bohn Thaís C. Morata Simone Mariotti Roggia Fernanda Zucki Benoı̂t Pouyatos

This study aimed to assess temporary and permanent auditory effects associated with occupational coexposure to low levels of noise and solvents. Cross-sectional study with 25 printing industry workers simultaneously exposed to low noise (<80 dBA TWA) and low levels of solvents. The control group consisted of 29 industry workers without the selected exposures. Participants answered a questionnaire and underwent auditory tests. Auditory fatigue was measured by comparing the acoustic reflex threshold before and after the workday. Workers coexposed to solvents and noise showed significantly worse results in auditory tests in comparison with the participants in the control group. Auditory brainstem response results showed differences in III−V interpeak intervals (p = 0.046 in right ear; p = 0.039 in left ear). Mean dichotic digits scores (exposed = 89.5 ± 13.33; controls = 96.40 ± 4.46) were only different in the left ear (p = 0.054). The comparison of pre and postacoustic reflex testing indicated mean differences (p = 0.032) between the exposed (4.58 ± 6.8) and controls (0 ± 4.62) groups. This study provides evidence of a possible temporary effect (hearing fatigue) at the level of the acoustic reflex of the stapedius muscle. The permanent effects were identified mainly at the level of the high brainstem and in the auditory ability of binaural integration.

Acoustic reflex

Dichotic listening

Auditory brainstem response

10.3390/ijerph19169894

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Citations (4)

Effects of Environmental and Organizational Factors on the Health of Shiftworkers of a Printing Company

Journal of Occupational and Environmental Medicine (2001)

Frida Marina Fischer Thaís C. Morata Maria do R D O Latorre Edward F. Krieg Ana C. Fiorini

This study explored the effects of environmental and organizational stressors on the health of shiftworkers in a printing company (n = 124). A questionnaire was used to gather data on work history, organizational factors, psychosocial characteristics, medical history, present health, occupational and non-occupational exposures, and lifestyle factors. The perception of environmental and organizational conditions was associated (P < 0.05) with chronic back pain (odds ratio [OR], 1.29), varicose veins (OR, 1.35), allergic rhinitis (OR, 1.27), depression (OR, 1.45), and gastritis (OR, 1.15). Anxiety scores were associated with allergic rhinitis (OR, 1.14) and skin allergy (OR, 1.09). Shiftwork was a significant risk factor for conjunctivitis (OR, 3.68), depression (OR, 0.23), cardiac arrhythmia (OR, 7.13), and gastritis (OR, 4.38). Other associations included tenure and chronic back pain (OR, 4.89), toluene exposure and skin allergy (OR, 3.76), worksite and conjunctivitis (OR, 7.0), and worksite and dermatitis (OR, 1.24 to 4.95). The number of hours of exercise per week was associated with varicose veins (OR, 4.33), and alcohol intake was associated with cardiac arrhythmia (OR, 6.74).

Depression

Stressor

10.1097/00043764-200110000-00007

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Citations (21)

Effects of microbreaks on performance and well-being in data entry work

International Conference on Human-Computer Interaction (1989)

Robert A. Henning S. L. Sauter Gavriel Salvendy Edward F. Krieg

Source

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Citations (1)

Stability of urinary female reproductive hormones stored under various conditions

Reproductive Toxicology (1995)

James S. Kesner Edwin A. Knecht Edward F. Krieg

10.1016/0890-6238(95)00005-u

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Citations (54)

Deficiency in plasma membrane calcium ATPase isoform 2 increases susceptibility to noise-induced hearing loss in mice

Hearing Research (2002)

Peter Kozel Rickie R. Davis Edward F. Krieg Gary E. Shull Lawrence C. Erway

Noise-induced hearing loss

10.1016/s0378-5955(01)00420-8

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Citations (85)

Finger Tendon Travel Associated with Sequential Trigger Nail Gun Use

IIE Transactions on Occupational Ergonomics and Human Factors (2012)

Brian D. Lowe James Albers Stephen D. Hudock Edward F. Krieg

Pneumatic nail guns used in wood framing are equipped with one of two triggering mechanisms. Sequential actuation triggers have been shown to be a safer alternative to contact actuation triggers because they reduce traumatic injury risk. However, the sequential actuation trigger must be depressed for each individual nail fired as opposed to the contact actuation trigger, which allows the trigger to be held depressed as nails are fired repeatedly by bumping the safety tip against the workpiece. As such, concerns have been raised about risks for cumulative trauma injury, and reduced productivity, due to repetitive finger motion with the sequential actuation trigger.This study developed a method to predict cumulative finger flexor tendon travel associated with the sequential actuation trigger nail gun from finger joint kinematics measured in the trigger actuation and productivity standards for wood-frame construction tasks.Finger motions were measured from six users wearing an instrumented electrogoniometer glove in a simulation of two common framing tasks-wall building and flat nailing of material. Flexor tendon travel was calculated from the ensemble average kinematics for an individual nail fired.Finger flexor tendon travel was attributable mostly to proximal interphalangeal and distal interphalangeal joint motion. Tendon travel per nail fired appeared to be slightly greater for a wall-building task than a flat nailing task. The present study data, in combination with construction industry productivity standards, suggest that a high-production workday would be associated with less than 60 m/day cumulative tendon travel per worker (based on 1700 trigger presses/day).These results suggest that exposure to finger tendon travel from sequential actuation trigger nail gun use may be below levels that have been previously associated with high musculoskeletal disorder risk.

10.1080/21577323.2012.742028

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Citations (6)