The effects of tool handle shape on hand performance, usability and discomfort using masons' trowels

Dianat, Iman; Nedaei, Moein; Nezami, Mohammad Ali Mostashar

doi:10.1016/j.ergon.2014.10.006

Cited by 70 publications

(48 citation statements)

References 28 publications

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“…Besides decreased physical and mental health, uneven work schedules may result in social disorder and familial conflicts (19). Various studies reported that ergonomic factors can improve health, safety, satisfaction and the employees' performance (22)(23)(24)(25)(26)(27).…”

Section: Introductionmentioning

confidence: 99%

Job Burnout and its Association With Work Schedules and Job Satisfaction Among Iranian Nurses in a Public Hospital: A Questionnaire Survey

Asghari¹,

Bazazan²,

Nasouhi³

et al. 2016

Biotech Health Sci

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Background: Job burnout, defined as a syndrome derived from prolonged exposure to stressors at work, is often observed in health care workers. Shift work and job satisfaction are considered two of the occupational risks for burnout in nurses. Nurses have stress and health complaints. In addition, nurses are likely to job burnout. Objectives: The current study aimed to determine the prevalence of job burnout and its association with work schedules and job satisfaction among Iranian nurses in a public hospital. Methods: This cross-sectional study was conducted in one of the largest Iranian public hospitals among 362 nurses (response rate: 80.44%) in Tehran, Iran. The Maslach burnout inventory (MBI-22) and demographic factors questionnaire were used in the present study. The relationship between job burnout with work schedules and job satisfaction was investigated with multiple logistic regression analysis. Results: The mean age and work experience of the participants were 36.14 ± 8.59 and 15.23 ±9.30 years, respectively. The result indicated a relatively high prevalence of burnout (particularly, personal accomplishment) among the study population. In general, 64.4% of participants reported low personal accomplishment level. The nurses engaged in shift work reported higher levels of emotional exhaustion (odds ratio (OR) = 1.02, 95% confidence interval (CI) = 1.006-1.041, P-value = 0.008); there was no relationship between work schedules with depersonalization and personal accomplishment. The result showed significant relationship between job satisfaction and emotional exhaustion (OR = 0.945, 95% CI = 0.928-0.963, P-value < 0.001) and personal accomplishment (OR = 1.003, 95% CI = 1.014-1.058, P-value = 0.001). Conclusions: The current study revealed that the Iranian nurses are exposed to a considerable risk of personal accomplishment. Also, job burnout is in association with shift working and low job satisfaction level. In this regard, working pressure, type of job and income may affect job burnout. Ergonomic interventional programs are recommended to improve the working conditions.

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Section: Introductionmentioning

confidence: 99%

Job Burnout and its Association With Work Schedules and Job Satisfaction Among Iranian Nurses in a Public Hospital: A Questionnaire Survey

Asghari¹,

Bazazan²,

Nasouhi³

et al. 2016

Biotech Health Sci

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show abstract

“…Recent studies have reported that the maximum volitional contraction (MVC) of hand is affected by various factors, including "grip span" and "hand size" which affect both strength output and muscle activity [16,[19][20][21][22]. However, no study date has matched "grip span" and "hand size" to explore the best HGS and GCS outcomes, the latter in particular.…”

Section: Introductionmentioning

confidence: 99%

Optimal Handle Grip Span for Maximum Hand Grip Strength and Accurate Grip Control Strength Exertion According to Individual Hand Size

Liao¹

2016

J Osteopor Phys Act

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Background: Hand grip strength (HGS) and grip control strength (GCS) are two predictors of upper-extremity function to undertake activities of daily living. Numerous studies have indicated that hand size and handle diameter independently affect HGS. However, none has explored the effects of matching hand size to optimal grip span on ergonomic outcomes. The aim of this article was to investigate the relationships among grip strength, hand size, and grip span.

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“…Moreover feeling of discomfort can be reduced by designing a suitable shape of handle [94], [95]. According to Dianat [71], the shape of the handle appeared to be the critical factor in capability of contact pressure distribution and affects the subject discomfort ratings. In other words, the load on the tissues can be spread by altering the design of handle shape.…”

Section: Handle Shapementioning

confidence: 99%

The Influence of Hand Tool Design on Hand Grip Strength: A Review

Isa

Umar

Mohamed

et al. 2019

IJIE

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Hand is made up of bones, tendons, ligaments, nerves and blood vessels that can be easily debilitated and injured if the hand tool is not design ergonomically. Recently researchers have examined the effects of individual, environmental and occupational factors on hand grip strength. However, information on the influence of hand tool design on hand grip strength is still lacking. The aim of this paper is to provide a comprehensive review of factors influencing hand grip strength focusing more towards hand tool design factors. The authors searched the journal articles, book and guidelines from the online databases of Google Scholar, ScienceDirect and Pubmed. Fourteen factors includes handle diameter, handle length, handle orientation, handle shape, handle material, handle flange, handle inter distance/grip span, grip method, tool weight, tool center of gravity, tool sharpness, trigger type and size, spring stiffness as well as vibration exposure were found to have significant effect on the hand grip strength. This review identified that the handle diameter is the most significant factor for hand grip strength.

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The effects of tool handle shape on hand performance, usability and discomfort using masons' trowels

Cited by 70 publications

References 28 publications

Job Burnout and its Association With Work Schedules and Job Satisfaction Among Iranian Nurses in a Public Hospital: A Questionnaire Survey

Job Burnout and its Association With Work Schedules and Job Satisfaction Among Iranian Nurses in a Public Hospital: A Questionnaire Survey

Optimal Handle Grip Span for Maximum Hand Grip Strength and Accurate Grip Control Strength Exertion According to Individual Hand Size

The Influence of Hand Tool Design on Hand Grip Strength: A Review

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