Addressing unpredictability may be the key to improving performance with current clinically prescribed myoelectric prostheses (2021)
Journal Article
Chadwell, A., Kenney, L., Thies, S., Head, J., Galpin, A., & Baker, R. (2021). Addressing unpredictability may be the key to improving performance with current clinically prescribed myoelectric prostheses. Scientific reports, 11, 3300. https://doi.org/10.1038/s41598-021-82764-6

The efferent control chain for an upper-limb myoelectric prosthesis can be separated into 3 key areas: signal generation, signal acquisition, and device response. Data were collected from twenty trans-radial myoelectric prosthesis users using their o... Read More about Addressing unpredictability may be the key to improving performance with current clinically prescribed myoelectric prostheses.

Upper limb activity of twenty myoelectric prosthesis users and twenty healthy anatomically intact adults (2019)
Journal Article
Chadwell, A., Kenney, L., Granat, M., Thies, S., Galpin, A., & Head, J. (2019). Upper limb activity of twenty myoelectric prosthesis users and twenty healthy anatomically intact adults. Scientific Data, 6(1), 199. https://doi.org/10.1038/s41597-019-0211-6

The upper limb activity of twenty unilateral upper limb myoelectric prosthesis users and twenty anatomically intact adults were recorded over a 7-day period using two wrist worn accelerometers (Actigraph, LLC). This dataset reflects the real-world ac... Read More about Upper limb activity of twenty myoelectric prosthesis users and twenty healthy anatomically intact adults.

How does the upper limb activity of adolescents with upper limb absence differ from anatomically intact adolescents, and does this change during sport? (2019)
Presentation / Conference
Clarke-Cornwell, A., Chinn, N., Chadwell, A., Kenney, L., Granat, M., & Head, J. (2019, June). How does the upper limb activity of adolescents with upper limb absence differ from anatomically intact adolescents, and does this change during sport?. Presented at International Conference on Ambulatory Monitoring of Physical Activity and Movement, Maastricht, Netherlands

Upper- and lower-limb amputees show reduced levels of eeriness for images of prosthetic hands (2019)
Journal Article
Buckingham, G., Parr, J., Wood, G., Day, S., Kenney, L., Galpin, A., …Poliakoff, E. (2019). Upper- and lower-limb amputees show reduced levels of eeriness for images of prosthetic hands. Psychonomic Bulletin and Review, 26, 1295-1302. https://doi.org/10.3758/s13423-019-01612-x

The uncanny phenomenon describes the feeling of unease associated with seeing an image which is close to appearing human. Prosthetic hands in particular are well-known to induce this effect. Little is known, however, about this phenomenon from the vi... Read More about Upper- and lower-limb amputees show reduced levels of eeriness for images of prosthetic hands.

Upper limb activity in myoelectric prosthesis users is biased towards the intact limb and appears unrelated to goal-directed task performance (2018)
Journal Article
Chadwell, A., Kenney, L., Granat, M., Thies, S., Head, J., Galpin, A., & Baker, R. (2018). Upper limb activity in myoelectric prosthesis users is biased towards the intact limb and appears unrelated to goal-directed task performance. Scientific reports, 8, #11084. https://doi.org/10.1038/s41598-018-29503-6

Studies of the effectiveness of prosthetic hands involve assessing user performance on functional tasks in the lab/clinic, sometimes combined with self-report of real-world use. In this paper we compare real-world upper limb activity between a group... Read More about Upper limb activity in myoelectric prosthesis users is biased towards the intact limb and appears unrelated to goal-directed task performance.

Design and construction of a new partial foot prosthesis based on high-pressure points in a patient with diabetes with transmetatarsal amputation : a technical note (2018)
Journal Article
Zarezadeh, F., Arazpour, M., Bahramizadeh, M., Mardani, M., & Head, J. (2018). Design and construction of a new partial foot prosthesis based on high-pressure points in a patient with diabetes with transmetatarsal amputation : a technical note. Journal of Prosthetics and Orthotics, 30(2), 108-113. https://doi.org/10.1097/JPO.0000000000000183

Introduction: Diabetic foot ulcers are significant complications of diabetes that can lead to amputation. Partial foot prostheses can be used to redistribute the plantar pressure on the residual limb to alleviate local pressures. The aim of this stud... Read More about Design and construction of a new partial foot prosthesis based on high-pressure points in a patient with diabetes with transmetatarsal amputation : a technical note.

Design and analysis of an original powered foot clearance creator mechanism for walking in patients with spinal cord injury (2018)
Journal Article
Maleki, M., Badri, S., Shayestehepour, H., Arazpour, M., Farahmand, F., Mousavi, M., …Mardani, M. (2019). Design and analysis of an original powered foot clearance creator mechanism for walking in patients with spinal cord injury. Disability and Rehabilitation: Assistive Technology, 14(4), 333-337. https://doi.org/10.1080/17483107.2018.1447610

Background: The aim of this study was to assess the performance of an original powered foot clearance creator (PFCC) mechanism worn in conjunction with an isocentric reciprocal gait orthosis (IRGO) and evaluate its effect on trunk compensatory moveme... Read More about Design and analysis of an original powered foot clearance creator mechanism for walking in patients with spinal cord injury.

Design and development of a novel upper-limb cycling prosthesis (2017)
Journal Article
Tiele, A., Soni-Sadar, S., Rowbottom, J., Patel, S., Mathewson, E., Pearson, S., …Hutchins, S. (2017). Design and development of a novel upper-limb cycling prosthesis. Bioengineering, 4(4), 89. https://doi.org/10.3390/bioengineering4040089

The rise in popularity of the Paralympics in recent years has created a need for effective, low-cost sports-prosthetic devices for upper-limb amputees. There are various opportunities for lower-limb amputees to participate in cycling; however, ther... Read More about Design and development of a novel upper-limb cycling prosthesis.

Efficacy of ankle foot orthoses types on walking in children with cerebral palsy : a systematic review (2017)
Journal Article
Aboutorabi, A., Arazpour, M., Bani Ismail, M., Saeedi, H., & Head, J. (2017). Efficacy of ankle foot orthoses types on walking in children with cerebral palsy : a systematic review. Annals of Physical and Rehabilitation Medicine, 60(6), 393-402. https://doi.org/10.1016/j.rehab.2017.05.004

Background: Ankle Foot Orthoses (AFOs) are orthotic devices that can be used to normalize the walking pattern of children with Cerebral Palsy (CP). One of the aims of orthotic management is to produce a more normal gait pattern by positioning joints... Read More about Efficacy of ankle foot orthoses types on walking in children with cerebral palsy : a systematic review.

Visualisation of upper limb activity using spirals - a new approach to the assessment of daily prosthesis usage (2017)
Journal Article
Chadwell, A., Kenney, L., Granat, M., Thies, S., Head, J., & Galpin, A. (2018). Visualisation of upper limb activity using spirals - a new approach to the assessment of daily prosthesis usage. Prosthetics and Orthotics International, 42(1), 37-44. https://doi.org/10.1177/0309364617706751

BACKGROUND: Current outcome measures used in upper limb myoelectric prosthesis studies include clinical tests of function and self-report questionnaires on real world prosthesis use. Research in other cohorts has questioned both the validity of self-... Read More about Visualisation of upper limb activity using spirals - a new approach to the assessment of daily prosthesis usage.

The reality of myoelectric prostheses : understanding what makes these devices difficult for some users to control (2016)
Journal Article
control. Frontiers in Neurorobotics, 10(7), https://doi.org/10.3389/fnbot.2016.00007

Users of myoelectric prostheses can often find them difficult to control. This can lead to passive-use of the device or total rejection, which can have detrimental effects on the contralateral limb due to overuse. Current clinically available prosth... Read More about The reality of myoelectric prostheses : understanding what makes these devices difficult for some users to control.

The use of an adjustable electrode housing unit to compare electrode alignment and contact variation with myoelectric prosthesis functionality: A pilot study (2014)
Journal Article
and contact variation with myoelectric prosthesis functionality: A pilot study. Prosthetics and Orthotics International, 40(1), 123-128. https://doi.org/10.1177/0309364614545417

Background: Usable myoelectric control relies on secure and intimate contact at all times between the electrode, the socket and the residual limb. At present, there is little post-fitting socket adjustment available to prosthetists with respect to el... Read More about The use of an adjustable electrode housing unit to compare electrode alignment and contact variation with myoelectric prosthesis functionality: A pilot study.

The effect of socket design on the reliability of EMG signal transduction in trans-radial myoelectric prostheses
Thesis
Monk, A. (in press). The effect of socket design on the reliability of EMG signal transduction in trans-radial myoelectric prostheses. (Dissertation). University of Salford

Background: The majority of trans-radial myoelectric prosthesis users experience some level of difficulty and disruption in the control of their prosthesis everyday (1). Previous studies by Head (1) and Chadwell et al. (2) have suggested that the fit... Read More about The effect of socket design on the reliability of EMG signal transduction in trans-radial myoelectric prostheses.