Assistive Cushions for Symmetric Wheelchair Sitting by Stroke Patients

Lee, In Hee; Park, Sang Young

doi:10.1589/jpts.23.837

Cited by 5 publications

(6 citation statements)

References 14 publications

(11 reference statements)

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“…The acquisition frequency was set to 5 Hz. The designated software was used to calibrate the system in 20 mmHg intervals to a maximum of 200 mmHg8 ) . Data computed from the sensors are presented in a color-coded contour map with numerical pressure values.…”

Section: Methodsmentioning

confidence: 99%

A Comparison of the Average Sitting Pressures and Symmetry Indexes between Air-adjustable and Foam Cushions

Kim

Chang

2013

J Phys Ther Sci

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[Purpose] The purpose of this study was to determine the best adjustable cushions, for the maintenance of normal sitting balance by healthy persons in wheelchairs, from a foam cushion, and a newly-developed air-adjustable cushion. [Subjects] Eighteen healthy participants (9 men, 9 women) were recruited. [Methods] Participants were evaluated using the Force Sensing Array System to assess average sitting pressure and the symmetry index of chair sitting under the following conditions: no seat cushion, a foam cushion, and a newly-developed air-adjustable cushion. [Results] The results show that there were no significant differences among the average sitting pressures which were measured on the hard surface of a chair, a foam cushion, and the newly-developed cushion. The air-adjustable cushion's symmetry index turned out to be closer to 0 than those of the foam cushion and the hard surface of the chair. [Conclusion] We suggest that the newly-developed air-adjustable cushion contributes to a more symmetrical sitting posture than the basic foam cushion or no seat cushion.

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Section: Methodsmentioning

confidence: 99%

A Comparison of the Average Sitting Pressures and Symmetry Indexes between Air-adjustable and Foam Cushions

Kim

Chang

2013

J Phys Ther Sci

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“…Therefore, achieving a symmetrical sitting posture would be beneficial for hemiparesis patients. The use of a cushion improves post-stroke asymmetry [26]; however, there is little evidence demonstrating how wheelchair configuration affects post-stroke asymmetry. A few studies have emphasized the importance of pelvic and thoracic support belts to maintain a proper seated posture with little burden [27,28].…”

Section: Introductionmentioning

confidence: 99%

Does the backrest shape of the wheelchair influence the asymmetric posture of patients with hemiparesis? A single institution pilot study

Ukita¹,

Abe²,

Nikaido³

et al. 2017

Biomed Res Clin Prac

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We have previously reported the effect of wheelchair with a unique backrest shape with pelvic and thoracic support (P-WC) on healthy individuals. However, the actual effect of P-WC on real users is still unclear. Therefore, the purpose of this study was to investigate the effect of different backrest shapes on asymmetric seated posture and pressure points in patients with hemiplegia. We compared a typical wheelchair with a flat backrest (T-WC) to P-WC. Ten subjects with hemiparesis were analyzed. Outcome measures were body alignment angles and pressure distributions of the supporting surfaces. The total seat pressure decreased (p<0.01) and total back pressure increased (p<0.05), in P-WC compared with T-WC. The head-neck was more upright (p<0.05) in P-WC than in T-WC. Moreover, the center of pressure was located in the middle of both the seat and backrest (p<0.05), and the high unilateral pressure around the ischial tuberosity was dispersed (p<0.05) in P-WC. In conclusion, the backrest shape of the P-WC contributes to reducing postural asymmetry. These results highlight the importance of the shape of the wheelchair backrest for patients with hemiparesis.

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“…FSA is commonly used for clinical pressure measurements [18,46]. The FSA mat has 256 sensors with a measured pressure range of 0-200 mmHg.…”

Section: Pressure Measurementsmentioning

confidence: 99%

“…Stroke patients have complex imbalance characteristics [8][9][10][11] and asymmetrical postures are frequently observed among these individuals [12] during gait [13], standing [14], or when seated [15,16]. Asymmetric posture relates to an increase in spasticity [17] or weight unilaterally [11,18], so occurrence of this phenomenon in subacute stroke patients could hamper their progress toward recovery. Correcting the asymmetry is one of the aspects of rehabilitation [15,19,20] designed to improve patients' activities of daily living (ADLs).…”

Section: Introductionmentioning

confidence: 99%

Influence of back support shape in wheelchairs offering pelvic support on asymmetrical sitting posture and pressure points during reaching tasks in stroke patients

Ukita

Abe

Kishigami³

et al. 2020

PLoS ONE

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Many poststroke hemiplegic patients have an asymmetrical wheelchair-sitting posture. This study aimed to investigate the impact of different back support shapes on asymmetrical sitting posture and pressure points among poststroke hemiplegic patients during an activities of daily living-related reaching task. This study included 23 poststroke hemiplegic patients who performed tasks that involved the movement of objects using the unaffected upper limb to the affected side while sitting in a conventional wheelchair (C-WC) with a flat back support or a wheelchair providing pelvic and thoracic support (P-WC). Body alignment angles from video images and pressure distribution on supporting surfaces were measured using a twodimensional motion analysis software (Dartfish) and a pressure mapping system (FSA). Regarding movement performance, although postural asymmetry increased in both wheelchair types, the degree of postural variation was smaller with P-WC use than C-WC use (p < 0.05), with partly reduced postural asymmetry. With P-WC, one-sided ischial asymmetrical pressure was significantly less after the movement (p < 0.05). In conclusion, P-WC's back support shape contributed to a decrease in postural asymmetry for pelvic girdle support both at rest and during movement. This highlights the importance of a wheelchair back support shape and may help to increase the quality of activities of daily living movement in poststroke hemiplegic patients in wheelchairs.

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Assistive Cushions for Symmetric Wheelchair Sitting by Stroke Patients

Cited by 5 publications

References 14 publications

A Comparison of the Average Sitting Pressures and Symmetry Indexes between Air-adjustable and Foam Cushions

A Comparison of the Average Sitting Pressures and Symmetry Indexes between Air-adjustable and Foam Cushions

Does the backrest shape of the wheelchair influence the asymmetric posture of patients with hemiparesis? A single institution pilot study

Influence of back support shape in wheelchairs offering pelvic support on asymmetrical sitting posture and pressure points during reaching tasks in stroke patients

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