Strength deficits of the shoulder complex during isokinetic testing in people with chronic stroke



Document title: Strength deficits of the shoulder complex during isokinetic testing in people with chronic stroke
Journal: Brazilian journal of physical therapy
Database: PERIÓDICA
System number: 000380163
ISSN: 1809-9246
Authors: 1
2
1
1
2
3
Institutions: 1University of Sydney, Faculty of Health Sciences, Sidney, Nueva Gales del Sur. Australia
2Universidade Federal de Minas Gerais, Departamento de Terapia Fisica, Belo Horizonte, Minas Gerais. Brasil
3Universidade Federal de Pernambuco, Departamento de Terapia Fisica, Recife, Pernambuco. Brasil
Year:
Season: May-Jun
Volumen: 18
Number: 3
Pages: 268-275
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Aplicado
English abstract OBJECTIVES: To examine the strength deficits of the shoulder complex after stroke and to characterize the pattern of weakness according to type of movement and type of isokinetic parameter. METHOD: Twelve chronic stroke survivors and 12 age-matched healthy controls had their shoulder strength measured using a Biodex isokinetic dynamometer. Concentric measures of peak torque and work during shoulder movements were obtained in random order at speeds of 60°/s for both groups and sides. Type of movement was defined as scapulothoracic (protraction and retraction), glenohumeral (shoulder internal and external rotation) or combined (shoulder flexion and extension). Type of isokinetic parameter was defined as maximum (peak torque) or sustained (work). Strength deficits were calculated using the control group as reference. RESULTS: The average strength deficit for the paretic upper limb was 52% for peak torque and 56% for work. Decreases observed in the non-paretic shoulder were 21% and 22%, respectively. Strength deficit of the scapulothoracic muscles was similar to the glenohumeral muscles, with a mean difference of 6% (95% CI -5 to 17). Ability to sustain torque throughout a given range of motion was decreased as much as the peak torque, with a mean difference of 4% (95% CI -2 to 10). CONCLUSIONS: The findings suggest that people after stroke might benefit from strengthening exercises directed at the paretic scapulothoracic muscles in addition to exercises of arm elevation. Clinicians should also prescribe different exercises to improve the ability to generate force and the ability to sustain the torque during a specific range of motion
Disciplines: Medicina
Keyword: Sistema cardiovascular,
Terapéutica y rehabilitación,
Enfermedades cerebrovasculares,
Hemiparesia,
Hombro,
Fuerza muscular,
Terapia física,
Ejercicio
Keyword: Medicine,
Cardiovascular system,
Therapeutics and rehabilitation,
Cerebrovascular diseases,
Hemiparesis,
Shoulder,
Muscular strength,
Physical therapy,
Exercise
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