Thumb postures and physical loads during mobile phone use – A comparison of young adults with and without musculoskeletal symptoms

Gustafsson, Ewa; Johnson, Peter W.; Hagberg, Mats

doi:10.1016/j.jelekin.2008.11.010

Cited by 122 publications

(88 citation statements)

References 56 publications

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“…To send messages, search on the Internet, or use games or other functions on smartphones, the user must repeatedly press the screen. These repeated upper-extremity movements in static postures may induce uncomfortable feelings, pain, decreases in motor abilities, and contraction of disease 3) . Raffle et al 4) indicated that repeated work of the upper extremity would not only cause minute damage to the muscles, joints, blood vessels, and nerves, but would also induce chronic pain and paresthesia in the neck, shoulders, arms, wrists, and fingers.…”

Section: Introductionmentioning

confidence: 99%

“…Berolo et al 2) also pointed out that the use of smartphones was a potential risk factor that would threaten the health of the musculoskeletal system. Nevertheless, studies that have tested physical exposure related to the use of smartphones are lacking today 2,3,8) . Therefore, it is necessary to evaluate the physical changes that occur during the use of smartphones, in particular, during repeated movements of pressing the screen, and determine whether their use is a risk factor that could induce musculoskeletal system disorders 3) .…”

Section: Introductionmentioning

confidence: 99%

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Effects of the Use of Smartphones on Pain and Muscle Fatigue in the Upper Extremity

Kim¹,

Ahn

Jeon

et al. 2012

J Phys Ther Sci

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Abstract.[Purpose] The purpose of this study was to investigate the effect of the use of smartphones on the upper extremity and determine whether there were differences in these changes between smartphone and computer use.[Subject] Forty healthy young adults (18 male, 25 female) took part in this study.[Methods] The pressure pain threshold measurement was assessed at the center of the upper trapezius of the dominant upper limb of the subjects. Electrodes were attached to the subjects in the two experiment groups, who then continuously performed a typing task on their own personal smartphone or computer keyboard for ten minutes.[Results] Regarding the pressure pain threshold of the upper trapezius, the smartphone and computer use groups showed significant decreases after performing the task compared with before it. Regarding muscle fatigue in the four monitored muscles, the smartphone and computer use groups showed deceases in median frequencies in all muscles measured after performing the tasks. The smartphone use group showed statistically significant differences in the brachioradialis, and the computer use group showed statistically significant differences in the upper trapezius when compared with the control group (p <0.05). [Conclusion] We found feasible relationships between smartphone use and musculoskeletal symptoms of the upper extremity and neck and identified physical differences between the smartphone use and computer use.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effects of the Use of Smartphones on Pain and Muscle Fatigue in the Upper Extremity

Kim¹,

Ahn

Jeon

et al. 2012

J Phys Ther Sci

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“…4). These studies demonstrated that the thumb often obtains nonneutral postures close to the limits of its joints' range of motion, associated with poor motor performance [40][41][42][43][44][45]. The thumb performed best when the postures were most neutral, such as with abduction and adduction of the thumb swiping over the surface of the phone similar to a windshield wiper [44,45].…”

Section: Mobile and Smart Phonesmentioning

confidence: 99%

The state of ergonomics for mobile computing technology

Dennerlein

2015

WOR

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Abstract. BACKGROUND:Because mobile computing technologies, such as notebook computers, smart mobile phones, and tablet computers afford users many different configurations through their intended mobility, there is concern about their effects on musculoskeletal pain and a need for usage recommendations. OBJECTIVE: Therefore the main goal of this paper to determine which best practices surrounding the use of mobile computing devices can be gleaned from current field and laboratory studies of mobile computing devices. METHODS: An expert review was completed. RESULTS: Field studies have documented various user configurations, which often include non-neutral postures, that users adopt when using mobile technology, along with some evidence suggesting that longer duration of use is associated with more discomfort. It is therefore prudent for users to take advantage of their mobility and not get stuck in any given posture for too long. The use of accessories such as appropriate cases or riser stands, as well as external keyboards and pointing devices, can also improve postures and comfort. CONCLUSIONS: Overall, the state of ergonomics for mobile technology is a work in progress and there are more research questions to be addressed.

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“…Copyright 2012ACM 978-1-4503-1438 much less attention. The macro-monotony of movements in, for example earlier line production has become physically strained micro-monotony in front of portable equipment (Richter et al, 2009) and (Gustafsson et al, 2009). Since the use of mobile technology has grown in comparison to stationary equipment (Rupnik, 2009) and this trend continues we find reason to further investigate this area.…”

Section: Physical Interaction In Ictmentioning

confidence: 99%

Design space and opportunities for physical movement participation in everyday life

Tobiasson

Hedman

Sundblad

2012

Proceedings of the 24th Australian Computer-Human Interaction Conference

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This paper is motivated by our work in the European Culture project "Faust -or dis-inventing the A-bomb". The project explored how to raise consciousness about distressing technology development through dialogue with old and young people. When reviewing our work it struck us that we had overlooked that some of the prototypes designed by the young participants called for embodied participation. We had naively expected to see sheer technology innovations of the future. Here we reflect on sensitivities for the bodily/physical will to interact.We also discuss everyday life situations that could allow for natural physical engagement as a health benefit. Physical aspects are typically of little consideration in design projects, apart from projects that has bodymovement as specific focus. We seek ways to adequately include a critical perspective in future design and to consider physical aspects more broadly in ICT projects for a human sustainable future. In many cases, the young participants showed us their concern for sustainability and well-being of both the environment and themselves and demonstrated through their prototypes a willingness to contribute through physical interaction.

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Thumb postures and physical loads during mobile phone use – A comparison of young adults with and without musculoskeletal symptoms

Cited by 122 publications

References 56 publications

Effects of the Use of Smartphones on Pain and Muscle Fatigue in the Upper Extremity

Effects of the Use of Smartphones on Pain and Muscle Fatigue in the Upper Extremity

The state of ergonomics for mobile computing technology

Design space and opportunities for physical movement participation in everyday life

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