Abstract
Shoulder dysfunction due to regular wheelchair use is a common problem among people with spinal cord injuries. As a remedial measure, strengthening of the scapular retractor muscles has been suggested. Electromyographical analysis was utilized to examine scapular retraction muscle use during rowing, backward wheeling and a standardized scapular retraction exercise in seven people with spinal cord injuries and seven able bodied subjects. In addition, a pilot study using indwelling electrodes was completed to validate the use and placement of surface electrodes. Both rowing and the standardized scapular retraction exercise recruited higher levels of retractor involvement than backward wheeling. We suggest that rowing, because of its value as a cardiovascular exercise and high level of retractor recruitment, is an appropriate and effective means of remediating scapular retractor weakness.
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Burnham R S et al. Shoulder pain in wheelchair athletes - the role of muscle imbalance. Am J Sports Med 1993; 21: 238–242.
Nichols P J R, Norman P A, Ennis J R . Wheelchair user's shoulder. Shoulder pain in patients with spinal cord lesions. Scand J Rehabil Med 1979; 11: 29–32.
Bayley J C, Cochran T P, Sledge C B . The weight bearing shoulder: The impingement syndrome in paraplegics. J Bone Joint Surg Am 1987; 69: 676–678.
Hoeberigs J H, Verstappen F T J . Muscle soreness in wheelchair basketballers. Int J Sports Med 1984; 5 (suppl): 177–179.
Martinez S F : Medical concerns among wheelchair road racers. Phys Sport Med 1989; 17: 63–68.
Burnham R S, Curtis K A, Reid D C . Shoulder problems in the wheelchair athlete. In: Pettrone FA (ed). Athletic Injuries of the Shoulder. McGraw Hill: New York, 1995, pp 375–381.
Solem-Bertroft E, Thomas K, Westerberg C . The influence of scapular retraction and protection on the width of the subacromial space - an MRI study. Clin Orthop 1993; 252: 99–103.
Kibler W B, Chandler T J . Functional scapular instability in throwing athletes. Presented at the American Orthopaedic Society for Sports Medicine's 15th Annual Meeting, Traverse City, MI, June 19–22, 1989.
Kamkar A, Irrgang J J, Whitney S L . Nonoperative management of secondary shoulder impingement syndrome. J Orthop Sport Phys Ther 1993; 17: 212–223.
Wilson P E, Washington R L . Pediatric wheelchair athletics: sport injuries and prevention. Paraplegia 1993; 31: 330–337.
Basmajian J V, Blumenstein R . Electrode Placement in EMG Biofeedback. Williams and Wilkins: Baltimore, MD, 1980.
Delagi E F, Perotto A . Anatomic Guide for the Electromyo-grapher. 2nd edn. Charles C Thomas: Springfield 11, 1980.
Bradley J P, Tibone J E . Electromyographical analysis of muscle action about the shoulder. Clin Sports Med 1991; 10: 789–805.
Moseley J B et al. EMG analysis of the scapular muscles during a shoulder rehabilitation program. Am J Sports Med 1992; 20: 128–134.
Daniels L, Worthington C : Muscle Testing. 4th edn. WB Saunders: Philadelphia, 1980.
Stein R B, Bruker B S, Ayyar D R . Motor units in incomplete spinal cord injury: electrical activity, contractile properties and the efects of biofeedback. J Neurol Neurosurg Psychiatry 1990; 53: 880–5.
Gilai A N . Analysis of turns and amplitude in EMG. In: Computer-Aided Electromyography and Expert Systems. Des-medt JE (ed). Elsevier Science Publishers Biomedical Division: New York, 1989.
Ferrarra M S, Davis R W . Injuries to elite wheelchair athletes. Paraplegia 1990; 28: 335–341.
Veiersted K B . The reproducibility of test contractions for calibration of electromyographic measurements. Eur J Appl Physiol 1990; 62: 91–98.
Laskin et al. Electrical stimulation-assisted rowing exercise in spinal cord injured people. A pilot study. Paraplegia 1993; 31: 534–541.
Hagerman F C, Lawrence R A, Mansfield M C . A comparison of energy expenditure during rowing and cycling ergometry. Med Sci Sports Exerc 1988; 20: 479–488.
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Olenik, L., Laskin, J., Burnham, R. et al. Efficacy of rowing, backward wheeling and isolated scapular retractor exercise as remedial strength activities for wheelchair users: application of electromyography. Spinal Cord 33, 148–152 (1995). https://doi.org/10.1038/sc.1995.32
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DOI: https://doi.org/10.1038/sc.1995.32