Computer mouse operation: is the left-handed user disadvantaged?

Hoffmann, Errol R.; Chang, Wai Yip; Yim, Ka Yan

doi:10.1016/s0003-6870(96)00070-1

Cited by 13 publications

(7 citation statements)

References 4 publications

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“…The dominant arm of left-and right-handed subjects exhibits similar abilities when performing manual tasks, whereas the nondominant arm of left-handed subjects is superior to that of right-handed subjects (Brouwer et al 2001;Caroselli et al 2006;Hoffmann 1997;Hoffmann et al 1997;Judge and Stirling 2003;Przybyla et al 2012). When endurance times were collapsed across arms, however, the difference in endurance time for the two tasks in the current study was similar for left-and right-handed individuals.…”

Section: Handedness and Endurance Timecontrasting

confidence: 51%

“…The rates of change in motor unit activity and modulation of reflex pathways, for example, are more rapid during position control (Baudry et al 2011;Mottram et al 2005;Rudroff et al 2010), which results in a briefer endurance time for a position task at low to moderate target forces (Baudry et al 2009;Hunter et al 2005Hunter et al , 2008Klass et al 2008;Rudroff et al 2010). Given that the motor performance capabilities of the nondominant arm of left-handed subjects are superior to those of righthanded subjects (Brouwer et al 2001;Caroselli et al 2006;Hoffmann 1997;Hoffmann et al 1997;Judge and Stirling 2003;Przybyla et al 2012), we expected to find that lefthanded subjects would exhibit less of a difference in the endurance time for sustained isometric contractions that have been shown to involve unique control strategies. Such a finding would suggest that left-handed subjects are more adept at controlling different types of loads, at least with the nondominant arm.…”

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confidence: 99%

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Handedness but not dominance influences variability in endurance time for sustained, submaximal contractions

Gordon

Rudroff

Enoka

et al. 2012

Journal of Neurophysiology

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Gordon NM, Rudroff T, Enoka JA, Enoka RM. Handedness but not dominance influences variability in endurance time for sustained, submaximal contractions. J Neurophysiol 108: 1501-1510. First published June 13, 2012 doi:10.1152/jn.01144.2011The purpose of this study was to compare endurance time and accompanying neuromuscular adjustments when left-and right-handed subjects used the dominant and nondominant arms to sustain submaximal contractions that required either force or position control. Ten left-handed and 10 right-handed healthy adults (21 Ϯ 5 yr) participated in the study. Each subject exerted a similar net torque about the elbow joint during the force and position tasks to achieve a target force of 20% maximal voluntary contraction (MVC) force (56 Ϯ 18 N). MVC force declined to a similar level immediately after task failure for left-and righthanded subjects (27 Ϯ 13 vs. 25 Ϯ 15%, P ϭ 0.9). Endurance time for the position task was similar for the dominant and nondominant arms (task ϫ dominance interaction, P ϭ 0.17). Although the difference in endurance time between the two tasks was similar for left-handed (136 Ϯ 165 s) and right-handed individuals (92 Ϯ 73 s, task ϫ handedness interaction, P ϭ 0.38), there was greater variance in the ratio of the endurance times for the force and position tasks for left-handed (0.77) than right-handed subjects (0.13, P Ͻ 0.001; see Fig. 2). Furthermore, endurance time for the force and position tasks was significantly correlated for right-handed subjects (r 2 ϭ 0.62, P Ͻ 0.001), but not for left-handed subjects (r 2 ϭ 0.004, P ϭ 0.79). Multiple regression analyses identified sets of predictor variables for each endurance time, and these differed with handedness and task. Hand dominance, however, did not influence endurance time for either group of subjects. These findings indicate that endurance times for the elbow flexors when performing submaximal isometric contractions that required either force or position control were not influenced by hand dominance but did depend on handedness. electromyography; muscle fatigue; task failure THE PREFERENTIAL USE OF ONE ARM during motor tasks is known as hand dominance and defines the handedness of an individual. A right-handed individual, for example, tends to use the right hand to perform most activities of daily living, such as writing, throwing, using scissors, brushing teeth, cutting with a knife, eating with a spoon, striking a match, and opening a box. However, some actions are more commonly performed with the nondominant limb, which results in each arm developing a unique set of motor skills (Adamo and Martin 2009; Bernard et al.

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Section: Handedness and Endurance Timecontrasting

confidence: 51%

mentioning

confidence: 99%

Handedness but not dominance influences variability in endurance time for sustained, submaximal contractions

Gordon

Rudroff

Enoka

et al. 2012

Journal of Neurophysiology

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“…Dalam Beberapa penelitian dapat diketahui bahwa orang yang kidal dapat terbiasa dengan aktivitas yang dikhususkan untuk orang non kidal dan dapat dikatakan bahwa orang yang kidal dapat menjadi superior dibanding dengan orang yang non kidal [3][4][5].…”

Section: Pendahuluanunclassified

Kemampuan Adaptasi Orang Kidal terhadap Lingkungan Non Kidal dalam Aktivitas Menulis dan Menggambar (Studi Kasus: Mahasiswa/i FSRD-ITB)

2014

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kuliah. Sedikitnya penelitian yang pernah dilakukan, memicu pada penelitian yang lebih jauh tentang kemampuan adaptasi populasi orang kidal. Penelitian ini bertujuan untuk mengidentifikasikan perilaku orang kidal terutama mengenai produktivitas, kemampuan adaptasi, orientasi gerak, dan tingkat kenyamanan selama mengerjakan tugas menulis dan menggambar. Dilakukan observasi visual untuk memperhatikan gerakan tertentu pada setiap tugas yang dilakukan di atas meja tulis biasa dan kursi kuliah. Penelitian dilakukan pada 14 responden, yang terdiri dari 7 responden kidal dan 7 responden non kidal. Semua responden merupakan mahasiswa aktif Fakultas Seni Rupa dan Desain ITB. Data yang terekam oleh video dianalisis dengan menggunakan perangkat lunak Image J dengan pemisahan data video tersebut ke dalam beberapa bingkai (frame). Selain itu, responden juga diberikan kuesioner dengan menggunakan metode Visual Analog Scale (Semantic Differential) sebagai verifikasi dari data yang diperoleh dari observasi visual. Hasilnya menunjukkan bahwa tingkat kemampuan adaptasi orang kidal secara signifikan lebih tinggi daripada kemampuan adaptasi orang non-kidal dalam kasus perubahan situasi kerja. Hasil dari penelitian ini dirumuskan sebagai referensi pengembangan desain dari perangkat kerja bagi orang kidal agar sesuai dengan ketentuan desain universal. Kata kunci: adaptasi; kidal; menulis; menggambar.Abstract. In the world of right handed person (RHP) life, left handed person (LHP) is known to show their ability in adapting right handed-purpose goods such as table top chair in the classroom. The less number of researches lead this study to investigate in-depth about the adaptability of LHP population. This study aims to identify LHPs behavior according to their productivity, adaptability, movement orientation and comfort level during conducting writing and drawing tasks. Visual observation is conducted to determine the typical

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“…However, very little work has compared the performance of these two groups when using their PH and NPH (Borod et al, 1984;P. J. Bryden & Roy, 2005;Hoffmann, Chang, & Yim, 1997;Kilshaw & Annett, 1983). Hoffmann (1997), for example, reported that, according to the NPH, in some tests left-handers performed better than right-handers.…”

Section: Manual Asymmetry In a Complex Coincidence-anticipation Task:mentioning

confidence: 99%

Manual asymmetry in a complex coincidence-anticipation task: Handedness and gender effects

Rodrigues

Vasconcelos

Barreiros

et al. 2009

Laterality: Asymmetries of Body, Brain and Cognition

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This study investigated the effects of handedness and gender on manual asymmetry in the performance of a complex coincidence-anticipation task. Left-handed (N=63) and right-handed (N=93) undergraduate students (78 males, 78 females) were required to press six buttons sequentially in conjunction with visual stimulation provided by a coincidence-anticipation apparatus. Participants were further separated into subgroups based on the degree of hand preference. Timing accuracy (AE, CE, VE) and timing response (IT, MT, AT) were analysed. Results showed that, concerning accuracy, (i) strong left-handers were more accurate than the other groups; (ii) performance with the preferred hand was superior to that of the non-preferred hand; and (iii) males outperformed females. Concerning timing response, (i) the preferred hand was faster than the non-preferred hand for movement time and (ii) males were faster in initiating the movement than females. These findings indicate that coincidence-anticipation competence appears to be influenced by hand preference, performing hand, and gender. In addition, findings are discussed in the framework of the hemispheric functional lateralisation for the planning and organisation of movement execution.

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Computer mouse operation: is the left-handed user disadvantaged?

Cited by 13 publications

References 4 publications

Handedness but not dominance influences variability in endurance time for sustained, submaximal contractions

Handedness but not dominance influences variability in endurance time for sustained, submaximal contractions

Kemampuan Adaptasi Orang Kidal terhadap Lingkungan Non Kidal dalam Aktivitas Menulis dan Menggambar (Studi Kasus: Mahasiswa/i FSRD-ITB)

Manual asymmetry in a complex coincidence-anticipation task: Handedness and gender effects

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