Soleus Hoffmann-Reflex Modulation During Walking in Healthy Elderly and Young Adults
نویسندگان
چکیده
منابع مشابه
Soleus H-reflex gain in elderly and young adults: modulation due to body position.
BACKGROUND The control of posture and balance in the elderly is a primary health concern. Postural instability directly leads to a greater incidence of falling in the elderly population. One important neuromuscular mechanism instrumental in the control of posture and balance is the reflex system. The purpose of this study was to examine the gain of the soleus H-reflex in young and elderly adult...
متن کاملModulation of soleus H-reflex during shortening and lengthening muscle actions in young and older adults.
The H-reflex is dependently modulated during isometric and anisometric muscle actions. However, the manner of the H-reflex modulation during dynamic muscle movements in relation to ageing is less stated in the literature. This study was designed to investigate the effects of ageing on soleus (SOL) H-reflex modulation during dynamic muscle actions. Twenty young (24 ± 4 years of age) and 20 older...
متن کاملAmplitude modulation of the soleus H-reflex in the human during walking and standing.
Experiments were done to determine the amplitude of the monosynaptically mediated H-reflex of the soleus muscle at various phases of the step cycle, using a computer-based analysis procedure. In all subjects tested the amplitude of the H-reflex was strongly modulated in amplitude during the walking cycle and was highest during the stance phase. In many subjects the peak reflex amplitude occurre...
متن کاملRecourse Allocation in Young and Elderly Adults
Objectives: The role of cognitive process for postural control was shown in dual task studies. However, there was no definite evidence how verbal instructions influence the allocation of attention to postural control. This study determined whether young and elderly adult are able to deliberately control the resource allocation when performing a sensorimotor and cognitive task simultaneously and...
متن کاملSoleus h-reflex modulation during stance phase of walking with altered arm swing patterns.
The purpose of this study was to test the effect of arm swing on modulation of soleus H-reflexes amplitudes during walking. Fifteen subjects walked (1.07 m/s) on a treadmill in 4 arm swing conditions: 1-natural arm swing (control), 2-active restraint, 3-passive restraint, and 4-passive-assisted. Tibial nerve was electrically stimulated and soleus EMG was recorded. H-reflex amplitude was signifi...
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ژورنال
عنوان ژورنال: The Journals of Gerontology Series A: Biological Sciences and Medical Sciences
سال: 2000
ISSN: 1079-5006,1758-535X
DOI: 10.1093/gerona/55.12.b570