Presentation is loading. Please wait.

Presentation is loading. Please wait.

This article and any supplementary material should be cited as follows: Lui J, MacGillivray MK, Sheel AW, Jeyasurya J, Sadeghi M, Sawatzky BJ. Mechanical.

Published byGodfrey Robertson Modified over 9 years ago

Similar presentations

Presentation on theme: "This article and any supplementary material should be cited as follows: Lui J, MacGillivray MK, Sheel AW, Jeyasurya J, Sadeghi M, Sawatzky BJ. Mechanical."— Presentation transcript:

1 This article and any supplementary material should be cited as follows: Lui J, MacGillivray MK, Sheel AW, Jeyasurya J, Sadeghi M, Sawatzky BJ. Mechanical efficiency of two commercial lever-propulsion mechanisms for manual wheelchair locomotion. J Rehabil Res Dev. 2013;50(10):1363– 72. http://dx.doi.org/10.1682/JRRD.2013.02.0034 Slideshow Project DOI:10.1682/JRRD.2013.02.0034JSP Mechanical efficiency of two commercial lever-propulsion mechanisms for manual wheelchair locomotion Jordon Lui, BKin; Megan K. MacGillivray, MSc; A. William Sheel, PhD; Jeswin Jeyasurya, MASc; Mahsa Sadeghi, MD; Bonita Jean Sawatzky, PhD

2 This article and any supplementary material should be cited as follows: Lui J, MacGillivray MK, Sheel AW, Jeyasurya J, Sadeghi M, Sawatzky BJ. Mechanical efficiency of two commercial lever-propulsion mechanisms for manual wheelchair locomotion. J Rehabil Res Dev. 2013;50(10):1363– 72. http://dx.doi.org/10.1682/JRRD.2013.02.0034 Slideshow Project DOI:10.1682/JRRD.2013.02.0034JSP Aim – Evaluate mechanical efficiency (ME) of 2 lever- propulsion mechanisms (torsion spring and roller clutch) for wheelchairs. – Compare ME of lever vs hand rim propulsion within same wheelchair. Relevance – Conventional wheelchairs have hand rims for manual propulsion, which can be energetically inefficient.

3 This article and any supplementary material should be cited as follows: Lui J, MacGillivray MK, Sheel AW, Jeyasurya J, Sadeghi M, Sawatzky BJ. Mechanical efficiency of two commercial lever-propulsion mechanisms for manual wheelchair locomotion. J Rehabil Res Dev. 2013;50(10):1363– 72. http://dx.doi.org/10.1682/JRRD.2013.02.0034 Slideshow Project DOI:10.1682/JRRD.2013.02.0034JSP Method Subjects – 10 nondisabled males. Procedure – Performed submaximal exercise tests with both lever- propulsion mechanisms and hand rim propulsion on 2 different wheelchairs. Measures – Cardiopulmonary parameters (O 2 uptake [VO 2 ], heart rate [HR], energy expenditure [En]). – Total external power (P ext ) using drag test protocol. – ME (ratio of P ext to En).

4 This article and any supplementary material should be cited as follows: Lui J, MacGillivray MK, Sheel AW, Jeyasurya J, Sadeghi M, Sawatzky BJ. Mechanical efficiency of two commercial lever-propulsion mechanisms for manual wheelchair locomotion. J Rehabil Res Dev. 2013;50(10):1363– 72. http://dx.doi.org/10.1682/JRRD.2013.02.0034 Slideshow Project DOI:10.1682/JRRD.2013.02.0034JSP Results No significant effect by lever-propulsion mechanism for all physiological measures. – Suggests torsion spring didn’t have physiological benefit vs roller clutch mechanism. Both lever-propulsion mechanisms showed decreased VO 2 and HR and increased ME (as function of slope) vs hand rim propulsion.

5 This article and any supplementary material should be cited as follows: Lui J, MacGillivray MK, Sheel AW, Jeyasurya J, Sadeghi M, Sawatzky BJ. Mechanical efficiency of two commercial lever-propulsion mechanisms for manual wheelchair locomotion. J Rehabil Res Dev. 2013;50(10):1363– 72. http://dx.doi.org/10.1682/JRRD.2013.02.0034 Slideshow Project DOI:10.1682/JRRD.2013.02.0034JSP Conclusion Both lever-propulsion mechanisms tested are more mechanically efficient than conventional hand rim propulsion, especially when slopes are encountered.

Download ppt "This article and any supplementary material should be cited as follows: Lui J, MacGillivray MK, Sheel AW, Jeyasurya J, Sadeghi M, Sawatzky BJ. Mechanical."

Similar presentations

This article and any supplementary material should be cited as follows: Levy A, Kopplin K, Gefen A. Computer simulations of efficacy of air-cell- based.

This article and any supplementary material should be cited as follows: Levy A, Kopplin K, Gefen A. Computer simulations of efficacy of air-cell- based.
This article and any supplementary material should be cited as follows: Paquet N, Taillon-Hobson A, Lajoie Y. Fukuda and Babinski-Weil tests: Within-subject.

This article and any supplementary material should be cited as follows: Paquet N, Taillon-Hobson A, Lajoie Y. Fukuda and Babinski-Weil tests: Within-subject.
This article and any supplementary material should be cited as follows: Cameron MH, Huisinga J. Objective and subjective measures reflect different aspects.

This article and any supplementary material should be cited as follows: Cameron MH, Huisinga J. Objective and subjective measures reflect different aspects.
This article and any supplementary material should be cited as follows: Kannenberg A, Zacharias B, Pröbsting E. Benefits of microprocessor- controlled.

This article and any supplementary material should be cited as follows: Kannenberg A, Zacharias B, Pröbsting E. Benefits of microprocessor- controlled.
This article and any supplementary material should be cited as follows: Jeyasurya J, Van der Loos HF, Hodgson A, Croft EA. Comparison of seat, waist, and.

This article and any supplementary material should be cited as follows: Jeyasurya J, Van der Loos HF, Hodgson A, Croft EA. Comparison of seat, waist, and.
This article and any supplementary material should be cited as follows: Sauret C, Bascou J, de Saint Rémy N, Pillet H, Vaslin P, Lavast F. Assessment of.

This article and any supplementary material should be cited as follows: Sauret C, Bascou J, de Saint Rémy N, Pillet H, Vaslin P, Lavast F. Assessment of.
This article and any supplementary material should be cited as follows: Tenenbaum S, Shabshin N, Levy A, Herman A, Gefen A. Effects of foot posture and.

This article and any supplementary material should be cited as follows: Tenenbaum S, Shabshin N, Levy A, Herman A, Gefen A. Effects of foot posture and.
This article and any supplementary material should be cited as follows: Eicholtz MR, Caspall JJ, Dao PV, Sprigle S, Ferri A. Test method for empirically.

This article and any supplementary material should be cited as follows: Eicholtz MR, Caspall JJ, Dao PV, Sprigle S, Ferri A. Test method for empirically.
This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different.

This article and any supplementary material should be cited as follows: Smit G, Plettenburg DH, van der Helm FCT. Design and evaluation of two different.
This article and any supplementary material should be cited as follows: Wininger M, Crane B. Effect of interpolation on parameters extracted from seating.

This article and any supplementary material should be cited as follows: Wininger M, Crane B. Effect of interpolation on parameters extracted from seating.
This article and any supplementary material should be cited as follows: Makowski P, Knutson J, Chae J, Crago P. Interaction of poststroke voluntary effort.

This article and any supplementary material should be cited as follows: Makowski P, Knutson J, Chae J, Crago P. Interaction of poststroke voluntary effort.
This article and any supplementary material should be cited as follows: Larson RD, McCully KK, Larson DJ, Pryor WM, White LJ. Lower-limb performance disparities:

This article and any supplementary material should be cited as follows: Larson RD, McCully KK, Larson DJ, Pryor WM, White LJ. Lower-limb performance disparities:
This article and any supplementary material should be cited as follows: Larson GE, Norman SB. Prospective prediction of functional difficulties among recently.

This article and any supplementary material should be cited as follows: Larson GE, Norman SB. Prospective prediction of functional difficulties among recently.
This article and any supplementary material should be cited as follows: Chien CS, Huang TY, Liao TY, Kuo TY, Lee TM. Design and development of solar power-assisted.

This article and any supplementary material should be cited as follows: Chien CS, Huang TY, Liao TY, Kuo TY, Lee TM. Design and development of solar power-assisted.
This article and any supplementary material should be cited as follows: Allgrove JE, Chapman M, Christides T, Smith PM. Immunoendocrine responses of male.

This article and any supplementary material should be cited as follows: Allgrove JE, Chapman M, Christides T, Smith PM. Immunoendocrine responses of male.
This article and any supplementary material should be cited as follows: Smit G, Bongers RM, Van der Sluis CK, Plettenburg DH. Efficiency of voluntary opening.

This article and any supplementary material should be cited as follows: Smit G, Bongers RM, Van der Sluis CK, Plettenburg DH. Efficiency of voluntary opening.
This article and any supplementary material should be cited as follows: Akbari M, Jafari H, Moshashaee A, Forugh B. Do diabetic neuropathy patients benefit.

This article and any supplementary material should be cited as follows: Akbari M, Jafari H, Moshashaee A, Forugh B. Do diabetic neuropathy patients benefit.
This article and any supplementary material should be cited as follows: Matsuse H, Shiba N, Takano Y, Yamada S, Ohshima H,Tagawa Y. Cycling exercise to.

This article and any supplementary material should be cited as follows: Matsuse H, Shiba N, Takano Y, Yamada S, Ohshima H,Tagawa Y. Cycling exercise to.
This article and any supplementary material should be cited as follows: Zukowski LA, Roper JA, Shechtman O, Otzel DM, Hovis PW, Tillman MD. Wheelchair.

This article and any supplementary material should be cited as follows: Zukowski LA, Roper JA, Shechtman O, Otzel DM, Hovis PW, Tillman MD. Wheelchair.
This article and any supplementary material should be cited as follows: Tsai J, Rosenheck RA. Use of group treatment among case managers in Department.

This article and any supplementary material should be cited as follows: Tsai J, Rosenheck RA. Use of group treatment among case managers in Department.

Similar presentations

Ads by Google