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All Outputs (22)

Why does my prosthetic hand not always do what it is told? (2022)
Journal Article
Chadwell, A., Prince, M., Head, J., Galpin, A., Thies, S., & Kenney, L. (2022). Why does my prosthetic hand not always do what it is told?. Frontiers for Young Minds, 10, https://doi.org/10.3389/frym.2022.786663

There are online videos that appear to show electrically powered prosthetic (artificial) hands to be near-perfect replacements for a missing hand. However, for many users, the reality can be quite different. Prosthetic hands do not always respond as... Read More about Why does my prosthetic hand not always do what it is told?.

Remote creation of clinical-standard myoelectric trans-radial bypass sockets during COVID-19 (2021)
Journal Article
Olsen, J., Head, J., Willan, L., Dupan, S., & Dyson, M. (2021). Remote creation of clinical-standard myoelectric trans-radial bypass sockets during COVID-19. Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 6500-6503. https://doi.org/10.1109/EMBC46164.2021.9630925

To enable the progression of research during the COVID-19 lockdown, a novel remote method of creating clinical standard trans-radial bypass sockets was devised as a collaboration between an engineering team and a clinical research group. The engineer... Read More about Remote creation of clinical-standard myoelectric trans-radial bypass sockets during COVID-19.

Effects of a modified passive socket system on short-term changes in residuum volume and comfort: A preliminary study in transtibial amputees (2021)
Journal Article
Atallah, H., Kenney, L., Howard, D., Liu, A., & Head, J. (2021). Effects of a modified passive socket system on short-term changes in residuum volume and comfort: A preliminary study in transtibial amputees. Prosthetics and Orthotics International, 46(1), 54-60. https://doi.org/10.1097/pxr.0000000000000053

Background: Changes in residuum volume are a common problem in lower-limb amputees during prosthesis usage, and can lead to poor suspension, impaired gait, and tissue damage. Residuum volume can be affected by the in-socket air pressure, which will i... Read More about Effects of a modified passive socket system on short-term changes in residuum volume and comfort: A preliminary study in transtibial amputees.

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.

Child prosthetics – a perspective (2020)
Book Chapter
Dyson, M., Wheeler, G., Langley, J., Needham, A., Mills, N., & Head, J. (2020). Child prosthetics – a perspective. In K. Nazarpour (Ed.), Control of prosthetic hands : challenges and emerging avenues (175-188). Institution of Engineering and Technology (IET). https://doi.org/10.1049/PBHE022E_ch9

This chapter summarises conversations between researchers working in healthcare and academia linked through membership of the Starworks Network, a UK National Institute for Health Research initiative to accelerate the translation of child prosthetics... Read More about Child prosthetics – a perspective.

Methods for clinical evaluation (2020)
Book Chapter
Kenney, L., Kyberd, P., Galpin, A., Chadwell, A., Granat, M., Thies, S., & Head, J. (2020). Methods for clinical evaluation. In K. Nazarpour (Ed.), Control of Prosthetic Hands : challenges and emerging avenues (29-67). Institute of Engineering and Technology (IET). https://doi.org/10.1049/PBHE022E_ch3

This chapter begins with an introduction to the challenges of measurement in upper limb prosthetics. This is followed by an overview of the traditional approaches to evaluation and their strengths and weaknesses. By traditional approaches, we mean te... Read More about Methods for clinical evaluation.

Evaluating reachable workspace and user control over prehensor aperture for a body-powered prosthesis (2020)
Journal Article
Chadwell, A., Kenney, L., Howard, D., Ssekitoleko, R., Nakandi, B., & Head, J. (2020). Evaluating reachable workspace and user control over prehensor aperture for a body-powered prosthesis. IEEE Transactions on Neural Systems and Rehabilitation Engineering, 28(9), 2005-2014. https://doi.org/10.1109/TNSRE.2020.3010625

Using a shoulder harness and control cable, a person can control the opening and closing of a bodypowered prosthesis prehensor. In many setups the cable does not pass adjacent to the shoulder joint center allowing shoulder flexion on the prostheti... Read More about Evaluating reachable workspace and user control over prehensor aperture for a body-powered prosthesis.

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

The effect of a semi-rigid thoracolumbosacral orthosis (TLSO) on foot pressure in elderly subjects presenting with spinal hyperkyphosis (2019)
Journal Article
Ebrahim Mousavi, M., Ahmadi Bani, M., Aboutorabi, A., Zare, H., Head, J., Movahedi Yeghaneh, M., & Ahmadi, E. (2020). The effect of a semi-rigid thoracolumbosacral orthosis (TLSO) on foot pressure in elderly subjects presenting with spinal hyperkyphosis. Disability and Rehabilitation: Assistive Technology, 15(2), 205-210. https://doi.org/10.1080/17483107.2018.1555289

Purpose: The ageing process can be accompanied by a degeneration of the spine and increase the risk of thoracic hyperkyphosis (excessive spinal forward curvature) amongst elderly people. This condition can in turn impair mobility, reduce balance, and... Read More about The effect of a semi-rigid thoracolumbosacral orthosis (TLSO) on foot pressure in elderly subjects presenting with spinal hyperkyphosis.

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.

Effects of two different hip-knee-ankle-foot orthoses on postural stability in subjects with spinal cord injury : a pilot study (2018)
Journal Article
Samadian, M., Bani, M., Golchin, N., Mardani, M., Head, J., & Arazpour, M. (2019). Effects of two different hip-knee-ankle-foot orthoses on postural stability in subjects with spinal cord injury : a pilot study. Asian spine journal (Seoul. Online), 13(1), 96-102. https://doi.org/10.31616/asj.2017.0283

Purpose Evaluation of two different hip-knee-ankle-foot orthoses (HKAFOs; medial linkage reciprocating gait orthosis [MLRGO] and isocentric reciprocating gait orthosis [IRGO]) using gait and postural stability analysis in four subjects with spinal... Read More about Effects of two different hip-knee-ankle-foot orthoses on postural stability in subjects with spinal cord injury : a pilot study.

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.