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

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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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

Journal of Electromyography and Kinesiology ◽

10.1016/j.jelekin.2013.06.009 ◽

2013 ◽

Vol 23 (6) ◽

pp. 1434-1445 ◽

Cited By ~ 12

Author(s):

Mathieu Lalumiere ◽

Dany H. Gagnon ◽

Jessica Hassan ◽

Guillaume Desroches ◽

Raphael Zory ◽

...

Keyword(s):

Spinal Cord ◽

Spinal Cord Injury ◽

Upper Extremity ◽

Trunk Flexion ◽

Wheelchair Users ◽

Manual Wheelchair ◽

Cord Injury

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Pain and its impact on functioning and disability in manual wheelchair users with spinal cord injury: a protocol for a mixed-methods study

BMJ Open ◽

10.1136/bmjopen-2020-044152 ◽

2021 ◽

Vol 11 (1) ◽

pp. e044152

Author(s):

Mokgadi Kholofelo Mashola ◽

Elzette Korkie ◽

Diphale Joyce Mothabeng

Keyword(s):

Spinal Cord ◽

Spinal Cord Injury ◽

South African ◽

Phase 1 ◽

Pain Medication ◽

Self Management ◽

Medication Misuse ◽

Wheelchair Users ◽

Manual Wheelchair ◽

Cord Injury

IntroductionApproximately 80% of people with spinal cord injury experience clinically significant chronic pain. Pain (whether musculoskeletal or neuropathic) is consistently rated as one of the most difficult problems to manage and negatively affects the individual’s physical, psychological and social functioning and increases the risk of pain medication misuse and poor mental health. The aim of this study is to therefore determine the presence of pain and its impact on functioning and disability as well as to develop a framework for self-management of pain for South African manual wheelchair users with spinal cord injury.Methods and analysisCommunity-dwelling participants with spinal cord injury will be invited to participate in this three-phase study. Phase 1 will use a quantitative, correlational design to determine factors related to pain such as pectoralis minor length, scapular dyskinesis, wheelchair functioning, physical quality of life, community reintegration and pain medication misuse. Demographic determinants of pain such as age, gender, type of occupation, completeness of injury and neurological level of injury will also be investigated. Participants with pain identified in phase 1 will be invited to partake in a qualitative descriptive and contextually designed phase 2 to explore their lived experience of pain through in-depth interviews. The results of phases 1 and 2 will then be used with the assistance from experts to develop a framework for self-management of pain using a modified Delphi study. Data analysis will include descriptive and inferential statistics (quantitative data) and thematic content analysis (qualitative data).Ethics and disseminationApproval for this study is granted by the Faculty of Health Sciences Research Ethics Committee of the University of the Pretoria (approval number 125/2018). This study is registered with the South African National Health Research Database (reference GP201806005). This study’s findings will be shared in academic conferences and published in scientific peer-reviewed journals.

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Effects of Functional Electrical Stimulation Cycling of Different Duration on Viscoelastic and Electromyographic Properties of the Knee in Patients with Spinal Cord Injury

Brain Sciences ◽

10.3390/brainsci11010007 ◽

2020 ◽

Vol 11 (1) ◽

pp. 7

Author(s):

Antonino Casabona ◽

Maria Stella Valle ◽

Claudio Dominante ◽

Luca Laudani ◽

Maria Pia Onesta ◽

...

Keyword(s):

Spinal Cord ◽

Spinal Cord Injury ◽

Electrical Stimulation ◽

Functional Electrical Stimulation ◽

Muscle Activity ◽

Response Times ◽

Electromyographic Activity ◽

Functional Changes ◽

Pendulum Test ◽

Cord Injury

The benefits of functional electrical stimulation during cycling (FES-cycling) have been ascertained following spinal cord injury. The instrumented pendulum test was applied to chronic paraplegic patients to investigate the effects of FES-cycling of different duration (20-min vs. 40-min) on biomechanical and electromyographic characterization of knee mobility. Seven adults with post-traumatic paraplegia attended two FES-cycling sessions, a 20-min and a 40-min one, in a random order. Knee angular excursion, stiffness and viscosity were measured using the pendulum test before and after each session. Surface electromyographic activity was recorded from the rectus femoris (RF) and biceps femoris (BF) muscles. FES-cycling led to reduced excursion (p < 0.001) and increased stiffness (p = 0.005) of the knee, which was more evident after the 20-min than 40-min session. Noteworthy, biomechanical changes were associated with an increase of muscle activity and changes in latency of muscle activity only for 20-min, with anticipated response times for RF (p < 0.001) and delayed responses for BF (p = 0.033). These results indicate that significant functional changes in knee mobility can be achieved by FES-cycling for 20 min, as evaluated by the pendulum test in patients with chronic paraplegia. The observed muscle behaviour suggests modulatory effects of exercise on spinal network aimed to partially restore automatic neuronal processes.

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