Rolling resistance and propulsion efficiency of manual and power-assisted wheelchairs.

Rolling resistance is one of the main forces resisting wheelchair propulsion and thus affecting stress exerted on the upper limbs. The present study investigates the differences in rolling resistance, propulsion efficiency and energy expenditure required by the user during power-assisted and manual propulsion. Different tire pressures (50%, 75%, 100%) and two different levels of motor assistance were tested. Drag force, energy expenditure and propulsion efficiency were measured in 10 able-bodied individuals under different experimental settings on a treadmill. Results showed that drag force levels were significantly higher in the 50%, compared to the 75% and 100% inflation conditions. In terms of wheelchair type, the manual wheelchair displayed significantly lower drag force values than the power-assisted one. The use of extra-power-assisted wheelchair appeared to be significantly superior to conventional power-assisted and manual wheelchairs concerning both propulsion efficiency and energy expenditure required by the user. Overall, the results of the study suggest that the use of power-assisted wheelchair was more efficient and required less energy input by the user, depending on the motor assistance provided.

[1]  L Garby,et al.  The relationship between the respiratory quotient and the energy equivalent of oxygen during simultaneous glucose and lipid oxidation and lipogenesis. , 1987, Acta physiologica Scandinavica.

[2]  Riemer J. K. Vegter,et al.  Initial Skill Acquisition of Handrim Wheelchair Propulsion: A New Perspective , 2014, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

[3]  Steve Haake,et al.  The rolling resistance of wheelchairs , 2004 .

[4]  C E Beekman,et al.  Energy cost of propulsion in standard and ultralight wheelchairs in people with spinal cord injuries. , 1999, Physical therapy.

[5]  H E J Veeger,et al.  Measurement of wheelchair rolling resistance with a handle bar push technique , 2003, Journal of medical engineering & technology.

[6]  Kenton R Kaufman,et al.  The effect of seat position on wheelchair propulsion biomechanics. , 2004, Journal of rehabilitation research and development.

[7]  M. Nash,et al.  Power-assisted wheels ease energy costs and perceptual responses to wheelchair propulsion in persons with shoulder pain and spinal cord injury. , 2008, Archives of physical medicine and rehabilitation.

[8]  H E Veeger,et al.  Manual wheelchair propulsion: effects of power output on physiology and technique. , 1988, Medicine and science in sports and exercise.

[9]  Lucas H V van der Woude,et al.  Effect of wheelchair mass, tire type and tire pressure on physical strain and wheelchair propulsion technique. , 2013, Medical engineering & physics.

[10]  Shirley G Fitzgerald,et al.  A Preliminary Study on the Impact of Pushrim-Activated Power-Assist Wheelchairs Among Individuals with Tetraplegia , 2008, American journal of physical medicine & rehabilitation.

[11]  Lucas H V van der Woude,et al.  Hand-rim wheelchair propulsion capacity during rehabilitation of persons with spinal cord injury. , 2005, Journal of rehabilitation research and development.

[12]  H E Veeger,et al.  Biomechanics and physiology in active manual wheelchair propulsion. , 2001, Medical engineering & physics.

[13]  Christophe Sauret,et al.  Effects of user's actions on rolling resistance and wheelchair stability during handrim wheelchair propulsion in the field. , 2013, Medical engineering & physics.

[14]  Comparison of Energy Expenditure and Propulsion Characteristics in a Standard and Three Pushrim-Activated Power- Assisted Wheelchairs , 2005 .

[15]  H Tropp,et al.  Power output for wheelchair driving on a treadmill compared with arm crank ergometry. , 1997, British journal of sports medicine.

[16]  M. Buman,et al.  Use of Power Assist Wheels Results in Increased Distance Traveled Compared with Conventional Manual Wheeling , 2010, American journal of physical medicine & rehabilitation.

[17]  Mathew Yarossi,et al.  Evaluation of wheelchair tire rolling resistance using dynamometer-based coast-down tests. , 2009, Journal of rehabilitation research and development.

[18]  K. Curtis,et al.  Effect of a standard exercise protocol on shoulder pain in long-term wheelchair users , 1999, Spinal Cord.

[19]  Shirley G Fitzgerald,et al.  Impact of a pushrim-activated power-assisted wheelchair on the metabolic demands, stroke frequency, and range of motion among subjects with tetraplegia. , 2004, Archives of physical medicine and rehabilitation.

[20]  John W Chow,et al.  Wheelchair Users' Perceptions of and Experiences with Power Assist Wheels , 2010, American journal of physical medicine & rehabilitation.

[21]  A. Quanbury,et al.  Experiences with Using a Pushrim-Activated Power-Assisted Wheelchair for Community-Based Occupations: A Qualitative Exploration , 2011, Canadian journal of occupational therapy. Revue canadienne d'ergotherapie.

[22]  Stephen Sprigle,et al.  On "impact of surface type, wheelchair weight, and axle position on wheelchair propulsion by novice older adults". , 2009, Archives of physical medicine and rehabilitation.

[23]  H. E. J. Veeger,et al.  Optimum cycle frequencies in hand-rim wheelchair propulsion , 1989, European Journal of Applied Physiology and Occupational Physiology.

[24]  M. Boninger,et al.  Evaluation of a pushrim-activated, power-assisted wheelchair. , 2001, Archives of physical medicine and rehabilitation.

[25]  R A Cooper,et al.  Mechanical efficiency and user power requirement with a pushrim activated power assisted wheelchair. , 2001, Medical engineering & physics.

[26]  I Denison,et al.  Measuring energy expenditure using heart rate to assess the effects of wheelchair tyre pressure , 2005, Clinical rehabilitation.

[27]  John W Chow,et al.  Wheelchair propulsion biomechanics and wheelers' quality of life: an exploratory review , 2011, Disability and rehabilitation. Assistive technology.

[28]  Joseph Bascou,et al.  Assessment of field rolling resistance of manual wheelchairs. , 2012, Journal of rehabilitation research and development.

[29]  Thomas W J Janssen,et al.  Manual wheelchairs: Research and innovation in rehabilitation, sports, daily life and health. , 2006, Medical engineering & physics.

[30]  Johan S Rietman,et al.  A systematic review on the pros and cons of using a pushrim-activated power-assisted wheelchair , 2013, Clinical rehabilitation.