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Trunk and shoulder kinematic and kinetic and electromyographic adaptations to slope increase during motorized treadmill propulsion among manual wheelchair users with a spinal cord injury.
Biomed Res Int. 2015; 2015:636319.BR

Abstract

The main objective was to quantify the effects of five different slopes on trunk and shoulder kinematics as well as shoulder kinetic and muscular demands during manual wheelchair (MWC) propulsion on a motorized treadmill. Eighteen participants with spinal cord injury propelled their MWC at a self-selected constant speed on a motorized treadmill set at different slopes (0°, 2.7°, 3.6°, 4.8°, and 7.1°). Trunk and upper limb movements were recorded with a motion analysis system. Net shoulder joint moments were computed with the forces applied to the handrims measured with an instrumented wheel. To quantify muscular demand, the electromyographic activity (EMG) of the pectoralis major (clavicular and sternal portions) and deltoid (anterior and posterior fibers) was recorded during the experimental tasks and normalized against maximum EMG values obtained during static contractions. Overall, forward trunk flexion and shoulder flexion increased as the slope became steeper, whereas shoulder flexion, adduction, and internal rotation moments along with the muscular demand also increased as the slope became steeper. The results confirm that forward trunk flexion and shoulder flexion movement amplitudes, along with shoulder mechanical and muscular demands, generally increase when the slope of the treadmill increases despite some similarities between the 2.7° to 3.6° and 3.6° to 4.8° slope increments.

Authors+Show Affiliations

School of Rehabilitation, Université de Montréal, Montreal, QC, Canada H3C 3J7 ; Pathokinesiology Laboratory, Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Institut de Réadaptation Gingras-Lindsay-de-Montréal, 6300 Darlington, Montreal, QC, Canada H3S 2J4.School of Rehabilitation, Université de Montréal, Montreal, QC, Canada H3C 3J7 ; Pathokinesiology Laboratory, Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Institut de Réadaptation Gingras-Lindsay-de-Montréal, 6300 Darlington, Montreal, QC, Canada H3S 2J4.School of Rehabilitation, Université de Montréal, Montreal, QC, Canada H3C 3J7 ; Pathokinesiology Laboratory, Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Institut de Réadaptation Gingras-Lindsay-de-Montréal, 6300 Darlington, Montreal, QC, Canada H3S 2J4.School of Rehabilitation, Université de Montréal, Montreal, QC, Canada H3C 3J7 ; Pathokinesiology Laboratory, Centre for Interdisciplinary Research in Rehabilitation of Greater Montreal, Institut de Réadaptation Gingras-Lindsay-de-Montréal, 6300 Darlington, Montreal, QC, Canada H3S 2J4.Department of Automated Production Engineering, École de Technologie Supérieure, Montreal, QC, Canada H3C 1K3.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25793200

Citation

Gagnon, Dany, et al. "Trunk and Shoulder Kinematic and Kinetic and Electromyographic Adaptations to Slope Increase During Motorized Treadmill Propulsion Among Manual Wheelchair Users With a Spinal Cord Injury." BioMed Research International, vol. 2015, 2015, p. 636319.
Gagnon D, Babineau AC, Champagne A, et al. Trunk and shoulder kinematic and kinetic and electromyographic adaptations to slope increase during motorized treadmill propulsion among manual wheelchair users with a spinal cord injury. Biomed Res Int. 2015;2015:636319.
Gagnon, D., Babineau, A. C., Champagne, A., Desroches, G., & Aissaoui, R. (2015). Trunk and shoulder kinematic and kinetic and electromyographic adaptations to slope increase during motorized treadmill propulsion among manual wheelchair users with a spinal cord injury. BioMed Research International, 2015, 636319. https://doi.org/10.1155/2015/636319
Gagnon D, et al. Trunk and Shoulder Kinematic and Kinetic and Electromyographic Adaptations to Slope Increase During Motorized Treadmill Propulsion Among Manual Wheelchair Users With a Spinal Cord Injury. Biomed Res Int. 2015;2015:636319. PubMed PMID: 25793200.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Trunk and shoulder kinematic and kinetic and electromyographic adaptations to slope increase during motorized treadmill propulsion among manual wheelchair users with a spinal cord injury. AU - Gagnon,Dany, AU - Babineau,Annie-Claude, AU - Champagne,Audrey, AU - Desroches,Guillaume, AU - Aissaoui,Rachid, Y1 - 2015/02/22/ PY - 2014/05/15/received PY - 2014/08/15/revised PY - 2014/08/19/accepted PY - 2015/3/21/entrez PY - 2015/3/21/pubmed PY - 2016/1/8/medline SP - 636319 EP - 636319 JF - BioMed research international JO - Biomed Res Int VL - 2015 N2 - The main objective was to quantify the effects of five different slopes on trunk and shoulder kinematics as well as shoulder kinetic and muscular demands during manual wheelchair (MWC) propulsion on a motorized treadmill. Eighteen participants with spinal cord injury propelled their MWC at a self-selected constant speed on a motorized treadmill set at different slopes (0°, 2.7°, 3.6°, 4.8°, and 7.1°). Trunk and upper limb movements were recorded with a motion analysis system. Net shoulder joint moments were computed with the forces applied to the handrims measured with an instrumented wheel. To quantify muscular demand, the electromyographic activity (EMG) of the pectoralis major (clavicular and sternal portions) and deltoid (anterior and posterior fibers) was recorded during the experimental tasks and normalized against maximum EMG values obtained during static contractions. Overall, forward trunk flexion and shoulder flexion increased as the slope became steeper, whereas shoulder flexion, adduction, and internal rotation moments along with the muscular demand also increased as the slope became steeper. The results confirm that forward trunk flexion and shoulder flexion movement amplitudes, along with shoulder mechanical and muscular demands, generally increase when the slope of the treadmill increases despite some similarities between the 2.7° to 3.6° and 3.6° to 4.8° slope increments. SN - 2314-6141 UR - https://www.unboundmedicine.com/medline/citation/25793200/Trunk_and_shoulder_kinematic_and_kinetic_and_electromyographic_adaptations_to_slope_increase_during_motorized_treadmill_propulsion_among_manual_wheelchair_users_with_a_spinal_cord_injury_ L2 - https://dx.doi.org/10.1155/2015/636319 DB - PRIME DP - Unbound Medicine ER -