Abstract

This paper explores the design of a dynamically weighted therapy bar, which can provide real-time quantitative performance information and adjustments during rehabilitation exercise. In contrast, typical therapy equipment is passive, offering no feedback to the patient or clinician. The dynamic weighted bar (DWB) was designed and fabricated containing an inertial sensor which tracks the orientation of the bar and adjusts the position of an internal weight accordingly, in turn providing a targeted force imbalance between the patient's two arms. Step input experiments were performed on the device while it was held in various stationary positions. The DWB was able to successfully function and transmit motion information. It was able to produce a center of mass shift of 101.6 mm, and a complete travel time between 0.96 s and 1.41 s over the entire length. The use of the DWB device can offer many benefits during rehabilitation including access to more quantitative information for clinicians as well as the potential for more personalized therapy programs.

Original languageEnglish (US)
Article number044503
JournalJournal of Medical Devices, Transactions of the ASME
Volume10
Issue number4
DOIs
StatePublished - Dec 1 2016

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Upper Extremity
Patient rehabilitation
Rehabilitation
Equipment and Supplies
Exercise Therapy
Arm
Therapeutics
Weights and Measures
Travel time
Feedback
Sensors
Experiments

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Biomedical Engineering

Cite this

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title = "Dynamic weighted bar for upper limb rehabilitation",
abstract = "This paper explores the design of a dynamically weighted therapy bar, which can provide real-time quantitative performance information and adjustments during rehabilitation exercise. In contrast, typical therapy equipment is passive, offering no feedback to the patient or clinician. The dynamic weighted bar (DWB) was designed and fabricated containing an inertial sensor which tracks the orientation of the bar and adjusts the position of an internal weight accordingly, in turn providing a targeted force imbalance between the patient's two arms. Step input experiments were performed on the device while it was held in various stationary positions. The DWB was able to successfully function and transmit motion information. It was able to produce a center of mass shift of 101.6 mm, and a complete travel time between 0.96 s and 1.41 s over the entire length. The use of the DWB device can offer many benefits during rehabilitation including access to more quantitative information for clinicians as well as the potential for more personalized therapy programs.",
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Dynamic weighted bar for upper limb rehabilitation. / Hornung, Taylor C.; Piazza, Stephen J.; Hills, Everett C.; Moore, Jason Z.

In: Journal of Medical Devices, Transactions of the ASME, Vol. 10, No. 4, 044503, 01.12.2016.

Research output: Contribution to journalArticle

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