Ascending curbs of progressively higher height increases forward trunk flexion along with upper extremity mechanical and muscular demands in manual wheelchair users with a spinal cord injury

Lalumiere, Mathieu; Gagnon, Dany H.; Hassan, Jessica; Desroches, Guillaume; Zory, Raphaël; Pradon, Didier

doi:10.1016/j.jelekin.2013.06.009

Cited by 18 publications

(13 citation statements)

References 30 publications

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“…To capture the 3D movements of the trunk, the nondominant U/L and the MWC, a total of 27 skin-fixed light-emitting diodes (LEDs) were placed on specific anatomical landmarks while four LEDs were fixed to the MWC frame [ 14 ]. The 3D coordinates of each LED within the laboratory coordinate system were collected at 30 Hz with a motion capture system incorporating four synchronised camera units (Optotrack 3020 and Optotrack Certus; Northern Digital Inc., Waterloo, Ontario, Canada, http://www.ndigital.com ).…”

Section: Methodsmentioning

confidence: 99%

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

Gagnon

Babineau

Champagne

et al. 2015

BioMed Research International

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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.

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Section: Methodsmentioning

confidence: 99%

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

Gagnon

Babineau

Champagne

et al. 2015

BioMed Research International

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“…The muscular demand of the nondominant shoulders among manual wheelchair users was also examined in previous studies [27]. The nondominant shoulder was scanned from the anterior aspect of glenoid to the flat segment of posterior acromion to capture the bright reflection of the bony contour of the acromion and humeral head (Figure 1).…”

Section: Methodsmentioning

confidence: 99%

Effects of Repetitive Shoulder Activity on the Subacromial Space in Manual Wheelchair Users

Lin

Boninger

Worobey

et al. 2014

BioMed Research International

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This study investigated (1) the effect of repetitive weight-relief raises (WR) and shoulder external rotation (ER) on the acromiohumeral distance (AHD) among manual wheelchair users (MWUs) and (2) the relationship between shoulder pain, subject characteristics, and AHD changes. Twenty-three MWUs underwent ultrasound imaging of the nondominant shoulder in an unloaded baseline position and while holding a WR position before and after the WR/ER tasks. Paired t-tests and Spearman correlational analysis were used to assess differences in the AHD before and after each task and the relationships between pain, subject characteristics, and the AHD measures. A significant reduction in the subacromial space (P < 0.01) occurred when subjects performed a WR position compared to baseline. Individuals with increased years of disability had greater AHD percentage narrowing after WR (P = 0.008). Increased shoulder pain was associated with AHD percentage narrowing after ER (P ≤ 0.007). The results support clinical practice guidelines that recommend MWUs limit WR to preserve shoulder function. The isolated repetitive shoulder activity did not contribute to the changes of subacromial space in MWUs. The ultrasonographic measurement of the AHD may be a target for identifying future interventions that prevent pain.

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“…Almost all effect sizes were large, except for a moderate to large \ the dominant upper extremity during posterior transfers (Table 6). 27 Lalumiere et al 28 compared muscular demand among manual wheelchair users (MWUs) with SCI (n = 15) when performing a curb ascent task at different heights. It was found that the MUR of the main muscles increased as the height of the curb increased.…”

Section: Comparison Of Semg Activity In Trunk Muscles In Self-controlmentioning

confidence: 99%

Surface electromyography as a measure of trunk muscle activity in patients with spinal cord injury: a meta-analytic review

Wang

Zhou

et al. 2015

The Journal of Spinal Cord Medicine

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Ascending curbs of progressively higher height increases forward trunk flexion along with upper extremity mechanical and muscular demands in manual wheelchair users with a spinal cord injury

Cited by 18 publications

References 30 publications

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

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

Effects of Repetitive Shoulder Activity on the Subacromial Space in Manual Wheelchair Users

Surface electromyography as a measure of trunk muscle activity in patients with spinal cord injury: a meta-analytic review

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