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An inexpensive method to measure knee extensors' power in older adults
- Source :
- Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP, Revista Brasileira de Medicina do Esporte v.21 n.6 2015, Revista brasileira de medicina do esporte, Sociedade Brasileira de Medicina do Exercício e do Esporte (SBMEE), instacron:SBMEE, Revista Brasileira de Medicina do Esporte, Vol 21, Iss 6, Pp 421-424 (2015)
- Publication Year :
- 2015
-
Abstract
- Introduction: Measuring knee extensors' power in elderly population is crucial but not accessible to everyone. Objective: To provide a method to calculate knee extensors' power in a conventional knee extension machine. Method: Thirteen sedentary elderly women (69.3±4.1 years) performed six knee extensions as fast as possible. Kinematic data, an anthropometric model and Newtonian mechanics was used to write movement equations that allowed calculating knee extensors' power and work. The reliability was assessed by variables' coefficient of variation, intraclass correlation coefficient and standard measurement error. Results: Knee extensors' peak power and work values obtained were in agreement with the literature. We found high intraclass ICC values for both variables (93% and 97%, respectively) and low normalized SEM (10.13% and 2.09%, respectively). Conclusion: We provided an inexpensive method to assess a major physical dysfunction indicator in older adults which can also be used to evaluate the progression of an intervention.
- Subjects :
- medicine.medical_specialty
rodilla
Intraclass correlation
Coefficient of variation
knee
Physical Therapy, Sports Therapy and Rehabilitation
Kinematics
fuerza muscular
Physical medicine and rehabilitation
medicine
Orthopedics and Sports Medicine
lcsh:Sports medicine
Reliability (statistics)
anciano
Measure (data warehouse)
business.industry
quadriceps muscle
Work (physics)
Anthropometry
JOELHO
musculoskeletal system
Power (physics)
aged
muscle strength
lcsh:RC1200-1245
business
músculo cuádriceps
Subjects
Details
- Language :
- Portuguese
- Database :
- OpenAIRE
- Journal :
- Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP, Revista Brasileira de Medicina do Esporte v.21 n.6 2015, Revista brasileira de medicina do esporte, Sociedade Brasileira de Medicina do Exercício e do Esporte (SBMEE), instacron:SBMEE, Revista Brasileira de Medicina do Esporte, Vol 21, Iss 6, Pp 421-424 (2015)
- Accession number :
- edsair.doi.dedup.....35f886427707b9010e9d60277e81257a