Biomechanical loading on the upper extremity increases from single key tapping to directional tapping.

[1]  C. E. Clauser,et al.  Anthropometric Relationships of Body and Body Segment Moments of Inertia , 1980 .

[2]  F. Veldpaus,et al.  A least-squares algorithm for the equiform transformation from spatial marker co-ordinates. , 1988, Journal of biomechanics.

[3]  David Rempel,et al.  Fingertip Forces While Using three Different Keyboards , 1991 .

[4]  W S Marras,et al.  Wrist motions in industry. , 1993, Ergonomics.

[5]  Jack T. Dennerlein,et al.  Fingertip impact loading during keyboard use , 1993 .

[6]  A Leardini,et al.  Position and orientation in space of bones during movement: anatomical frame definition and determination. , 1995, Clinical biomechanics.

[7]  H M Toussaint,et al.  Segment inertial parameter evaluation in two anthropometric models by application of a dynamic linked segment model. , 1996, Journal of biomechanics.

[8]  U Bergqvist,et al.  National Institute for Working Life Ergonomic Expert Committee Document No 1Visual Display Unit Work and Upper Extremity Musculoskeletal DisordersA Review of Epidemiological Findings , 1997 .

[9]  E R Serina,et al.  Wrist and forearm postures and motions during typing. , 1999, Ergonomics.

[10]  Catherine Cook,et al.  Forearm support for intensive keyboard users: a field study , 2002 .

[11]  D. Kleinbaum,et al.  A prospective study of computer users: I. Study design and incidence of musculoskeletal symptoms and disorders. , 2002, American journal of industrial medicine.

[12]  Fredric Gerr,et al.  A prospective study of computer users: II. Postural risk factors for musculoskeletal symptoms and disorders. , 2002, American journal of industrial medicine.

[13]  Bart Visser.  Upper extremity load in low-intensity tasks , 2004 .

[14]  Kelvin E. Jones,et al.  The scaling of motor noise with muscle strength and motor unit number in humans , 2004, Experimental Brain Research.

[15]  Robin Burgess-Limerick,et al.  The effect of forearm support on musculoskeletal discomfort during call centre work. , 2004, Applied ergonomics.

[16]  Robin Burgess-Limerick,et al.  The effect of upper extremity support on upper extremity posture and muscle activity during keyboard use. , 2004, Applied ergonomics.

[17]  D. Rempel,et al.  Upper extremity pain and computer use among engineering graduate students. , 2004, American journal of industrial medicine.

[18]  William S. Marras,et al.  A quantitative description of typing biomechanics , 1996, Journal of Occupational Rehabilitation.

[19]  D. Jindrich,et al.  Finger joint coordination during tapping. , 2006, Journal of biomechanics.

[20]  D. Rempel,et al.  A randomised controlled trial evaluating the effects of two workstation interventions on upper body pain and incident musculoskeletal disorders among computer operators , 2006, Occupational and Environmental Medicine.

[21]  F. Gerr,et al.  Keyboard use and musculoskeletal outcomes among computer users , 2006, Journal of Occupational Rehabilitation.

[22]  Rakié Cham,et al.  Kinematics of the fingers and hands during computer keyboard use. , 2007, Clinical biomechanics.

[23]  R. D. de Bie,et al.  Prevalence of complaints of arm, neck and shoulder among computer office workers and psychometric evaluation of a risk factor questionnaire , 2007, BMC musculoskeletal disorders.

[24]  J T Dennerlein,et al.  Effect of horizontal position of the computer keyboard on upper extremity posture and muscular load during computer work , 2007, Ergonomics.

[25]  Jack T Dennerlein,et al.  The contribution of the wrist, elbow and shoulder joints to single-finger tapping. , 2007, Journal of biomechanics.

[26]  Karen Søgaard,et al.  Work related neck-shoulder pain: a review on magnitude, risk factors, biochemical characteristics, clinical picture and preventive interventions. , 2007, Best practice & research. Clinical rheumatology.

[27]  Falk Liebers,et al.  Musculoskeletal symptoms of the upper extremities and the neck: A cross-sectional study on prevalence and symptom-predicting factors at visual display terminal (VDT) workstations , 2008, BMC musculoskeletal disorders.

[28]  D. Jindrich,et al.  Computer keyswitch force-displacement characteristics affect muscle activity patterns during index finger tapping. , 2009, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

[29]  P K Nag,et al.  Influence of arm and wrist support on forearm and back muscle activity in computer keyboard operation. , 2009, Applied ergonomics.