Showing papers in "Physiotherapy Canada in 1986"

Strength of lower limb related to gait velocity and cadence in stroke patients

Abstract: This study was undertaken to determine the relationship between two temporal components of gait (velocity and cadence) and the standardized static strength of seven lower extremity muscle groups of the paretic side of 20 patients who were hemiplegic following cerebrovascular accidents. Velocity and cadence were calculated from a timed gait trial over an eight-metre expanse of floor. Static strength was tested by a hand-held dynamometer, and the scores standardized against body weight. The muscles tested were hip flexors, extensors and abductors; the knee flexors and extensors; and the ankle dorsiflexors and plantar flexors. Correlations were significant (p < 0.05) between both gait variables and the standardized strength of the hip extensor, knee flexor, ankle dorsiflexor, and ankle plantar flexor muscle groups. Also significant were the correlations between cadence and the standardized strength of the hip abductor and knee extensor muscles. These relationships suggest that the strength of some muscle gro...

Strength and endurance of skeletal muscle in the elderly

Abstract: This review describes the reductions and limitations in skeletal muscle function associated with the normal aging process. Specific attention has been given to changes in muscle strength and muscle endurance, as well as to the effects of strength-training programs on the elderly. It is concluded from the literature that, although healthy old people achieve high levels of muscle activation in tests of voluntary strength, a loss of motoneurons and skeletal muscle fibres with aging appears to cause a gradual decline of muscle strength after the sixth decade. In association with that lowered strength, there is some reduction of muscle endurance for heavy lifting and carrying tasks. Whether the inherent fatiguability of muscle is altered in the elderly is currently a controversial issue. The recent introduction of innovative physical programs for the disabled or sedentary elderly, in the form of specific strengthening exercises, dance, and physical hobbies appears to be promising as a means for improving muscl...