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- Thomée, Sara, 1965, et al.
(författare)
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Prevalence of perceived stress, symptoms of depression and sleep disturbances in relation to information and communication technology (ICT) use among young adults - an explorative prospective study
- 2007
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Ingår i: Computers in Human Behavior. ; 23:3, s. 1300-1321
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to prospectively investigate whether high quantity of information and communication technology (ICT) use is a risk factor for developing psychological symptoms among young ICT users. A cohort of college students responded to a questionnaire at baseline and at 1-year follow-up (n = 1127). Exposure variables, such as different types of ICT use, and effect variables, such as perceived stress, symptoms of depression and sleep disturbances, were assessed. Prevalence ratios were computed, based on symptom-free subjects at baseline and prevalence of symptoms at follow-up. For women, high combined use of computer and mobile phone at baseline was associated with increased risk of reporting prolonged stress and symptoms of depression at follow-up, and number of short message service (SMS) messages per day was associated with prolonged stress. Also online chatting was associated with prolonged stress, and e-mailing and online chatting were associated with symptoms of depression, while Internet surfing increased the risk of developing sleep disturbances. For men, number of mobile phone calls and SMS messages per day were associated with sleep disturbances. SMS use was also associated with symptoms of depression. The findings suggest that ICT may have an impact on psychological health, although causal mechanisms are unclear.
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- Gustafsson, Ewa, 1955, et al.
(författare)
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Computer mouse use in two different hand positions: exposure, comfort, exertion and productivity
- 2003
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Ingår i: Appl Ergon. - 0003-6870. ; 34:2, s. 107-13
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to determine whether there are differences in exposure, comfort, exertion and productivity between a neutral and a pronated hand position when using a computer mouse. Nineteen experienced VDU workers performed a standardised text editing task with each mouse hand position. The wrist positions and movements in the working arm were registered by an electrogoniometer and the muscle activity in the shoulder, two extensors in the forearm and the first dorsal interossei (FDI) was registered by electromyography. The subjects rated perceived exertion and comfort in work with each mouse hand position. Work with the neutral hand position, compared to the pronated, gave a decreased muscle activity in the extensors of the forearm and in the FDI and a trend indicating a decrease in the frequency of deviation movements in the wrist. At the same time, the subjects showed a decreased productivity and they rated less comfort in work with the neutral hand position.
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- Gustafsson, Ewa, 1955, et al.
(författare)
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Technique, muscle activity and kinematic differences in young adults texting on mobile phones
- 2011
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Ingår i: Ergonomics. - : Informa UK Limited. - 1366-5847 .- 0014-0139. ; 54:5, s. 477-87
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to investigate whether there are differences in technique between young adults with and without musculoskeletal symptoms when using a mobile phone for texting and whether there are differences in muscle activity and kinematics between different texting techniques. A total of 56 young adults performed a standardised texting task on a mobile phone. Their texting techniques were registered using an observation protocol. The muscular activity in six muscles in the right forearm/hand and both shoulders were registered by surface electromyography and the thumb abduction/adduction and flexion/extension were registered using a biaxial electrogoniometer. Differences in texting techniques were found between the symptomatic and the asymptomatic group, with a higher proportion of sitting with back support and forearm support and with a neutral head position in the asymptomatic group. Differences in muscle activity and kinematics were also found between different texting techniques. The differences in texting technique between symptomatic and asymptomatic subjects cannot be explained by them having symptoms but may be a possible contribution to their symptoms. Statement of Relevance: There has been a dramatically increased use of mobile phones for texting especially among young people during the last years. A better understanding of the physical exposure associated with the intensive use is important in order to prevent the development of musculoskeletal disorders and decreased work ability related to this use.
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- Gustafsson, Ewa, 1955, et al.
(författare)
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Texting on mobile phones and musculoskeletal disorders in young adults: A five-year cohort study
- 2017
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Ingår i: Applied Ergonomics. - : Elsevier BV. - 0003-6870. ; 58, s. 208-214
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Tidskriftsartikel (refereegranskat)abstract
- The aim was to examine whether texting on a mobile phone is a risk factor for musculoskeletal disorders in the neck and upper extremities in a population of young adults.In a longitudinal population-based cohort study with Swedish young adults (aged 20-24 years) data were collected via a web-based questionnaire at baseline (n = 7092) and after one and five years. Cross-sectional associations were found between text messaging and reported ongoing symptoms in neck and upper extremities (odds ratios, ORs 1.3-2.0). Among symptom-free at baseline prospective associations were only found between text messaging and new cases of reported symptoms in the hand/fingers (OR 2.0) at one year follow up. Among those with symptoms at baseline prospective associations were found between text messaging and maintained pain in neck/upper back (OR 1.6). The results imply mostly short-term effects, and to a lesser extent, long-term effects on musculoskeletal disorders in neck and upper extremities. © 2016 The Authors.
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- Gustafsson, Ewa, 1955, et al.
(författare)
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The use of information technology among young adults--experience, attitudes and health beliefs
- 2003
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Ingår i: Appl Ergon. - : Pergamon. - 0003-6870 .- 1872-9126. ; 34:6, s. 565-70
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to explore attitudes, coherence and health beliefs among young adults, related to their use and experience of information technology (IT). A qualitative approach was used and the data were collected through individual thematised interviews with 25 young IT users, aged 18-24. The interviews were analysed in line with the grounded theory method with a constructivist approach. The main findings were the young adults' experience of the two sides of being social, efficient and independent here and now. They described almost unlimited opportunities in connection with IT, but they also had misgivings, and perceived risks regarding IT use. Feelings of freedom and being efficient were countered by feelings of restrictions on living space and of intangibility. Knowledge concerning these attitudes, coherence and health beliefs can be considered when designing epidemiological and ergonomic studies aimed at risk identification.
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- Gustafsson, Ewa, 1955, et al.
(författare)
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Thumb postures and physical loads during mobile phone use - A comparison of young adults with and without musculoskeletal symptoms.
- 2010
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Ingår i: Journal of electromyography and kinesiology. - : Elsevier BV. - 1050-6411. ; 20:1, s. 127-135
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to evaluate thumb postures, thumb movements and muscle activity when using mobile phones for SMS messaging and to determine whether there were differences in these exposures (a) across various mobile phone tasks, (b) between gender and (c) between subjects with and without musculoskeletal symptoms in shoulders and upper extremities. Fifty-six young adults (15 healthy and 41 with musculoskeletal symptoms) performed a series of distinct tasks on a mobile phone. Muscular load in four forearm/hand muscles in the right arm and the right and left trapezius muscles were measured using electromyography (EMG). Thumb movements were registered using an electrogoniometer. The results showed that postures (sitting or standing) and the type of mobile phone task (holding the phone versus texting) affected muscle activity and thumb positions. Females compared to males had higher muscle activity in the extensor digitorum and the abductor pollicis longus when entering SMS messages and tended to have greater thumb abduction, higher thumb movement velocities and fewer pauses in the thumb movements. Subjects with symptoms had lower muscle activity levels in the abductor pollicis longus and tended to have higher thumb movement velocities and fewer pauses in the thumb movements compared to those without symptoms.
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| 9. |
- Oliv, Stefan, et al.
(författare)
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A Lower Level of Physically Demanding Work Is Associated with Excellent Work Ability in Men and Women with Neck Pain in Different Age Groups
- 2017
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Ingår i: Safety and Health at Work. - : Elsevier BV. - 2093-7911 .- 2093-7997. ; 8:4, s. 356-363
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Tidskriftsartikel (refereegranskat)abstract
- © 2017 The Authors. Background: The aim of this study was to investigate which physical and psychosocial work demands were associated with excellent work ability in individuals with neck pain, and to investigate age and sex differences in these associations. Methods: The study sample was obtained from the Statistics Sweden cross-sectional Work Environment survey and consisted of workers who reported neck pain after work (N = 3,212). Results: The findings showed an association between excellent work ability and self-reported low exposure to lifting, twisted work posture, working with hands in shoulder level or higher, and leaning forward without support and combination of exposures containing these work demands. Low exposure to seated work and high demands showed a reversed association. The associations were present mainly among older workers and were generally stronger for men than for women. Conclusion: This study indicates that a lower level of physically demanding work is an important element to maintain excellent work ability, especially for the older worker with neck pain.
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| 10. |
- Oliv, Stefan, et al.
(författare)
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Important work demands for reducing sickness absence among workers with neck or upper back pain: a prospective cohort study
- 2019
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Ingår i: BMC Musculoskeletal Disorders. - : Springer Science and Business Media LLC. - 1471-2474. ; 20:1
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Tidskriftsartikel (refereegranskat)abstract
- Background The aim of this study was to investigate what exposure to work demands, physical and psychosocial, is associated with lower levels of sickness absence among workers with neck or upper back pain in different groups, by age, gender, duration of sickness absence and work ability score. Methods This study was a prospective study of 4567 workers with neck or upper back pain. Data on neck or upper back pain, work demand and work ability were obtained from the Swedish Work Environment survey over a 3-year period (2009-2013). Register data on sickness absence, 1 year after each survey was conducted, were obtained from the Swedish health insurance database. Analyses were performed to estimate the association between self-reported work demands and registered sick days > 14 days. The analyses were stratified for gender, age group and work ability score. Results Lower numbers of sick days were found for workers reporting low exposure to lifting >= 15 kg and twisted or forward-leaning work postures. Lower numbers of sick days were found for workers reporting high work control and seated work. The associations were generally stronger in the older age groups for the physical work demands. Conclusions The findings in this study suggest that certain physical work demands and having high control over one's work can result in lower sickness absence, especially among middle-aged and older workers with neck or upper back pain.
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