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Leg stiffness and electromyography of knee extensors/flexors: Comparison between older and younger adults during stair descent
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Abstract-This study investigated differences in knee exten-sor/ flexor electromyography (EMG), leg loading rate, and leg stiffness in older and younger men during stair descent. Sixteen older men (mean +/- standard deviation [SD] = 72 +/- 4.5 years) and sixteen younger men (mean +/- SD = 21.2 +/- 0.5 years) were recruited. The EMG signals were recorded from the rectus femoris and the biceps femoris, while an elec-trogoniometer measured knee joint angle changes, and a force platform recorded t...
Related newspaper, magazine, and journal articles from HighBeam Research
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Leg stiffness and electromyography of knee extensors/flexors: Comparison between older and younger adults during stair descent
Journal of Rehabilitation Research and Development
; Abstract-This study investigated differences in knee exten-sor/ flexor electromyography (EMG), leg loading rate, and leg stiffness in older and younger men during stair descent. Sixteen older men (mean standard deviation [SD] = 72 4.5 years) and sixteen younger men (mean SD = 21.2 0.5 years)
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Analysis of group differences in processing speed: Where are the models of processing?
Psychonomic Bulletin & Review
; Recently, Myerson, Adams, Hale, and Jenkins (2003) replied to arguments advanced by Ratcliff, Spieler, and McKoon (2000) about interpretations of Brinley functions. Myerson et al. (2003) focused on methodological and terminological issues, arguing that (1) Brinley functions are not
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Age and Gender Differences in Lower Extremity Control Descending Stairs.(Brief Article)
Research Quarterly for Exercise and Sport
; Timothy S. Hilliard, Andrew M Weiner, Jennifer L. Cann, and Vincent P Simmarano, Northeastern University Researchers have identified many possible causes of increased falls in the elderly. Declining strength, increased postural sway, visual deficits and changes in proprioceptor function have all
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 "Clinical Kinesiology (Online)")
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The Role of Lower Leg Muscle Activity in Blood Pressure Maintenance of Older Adults
Clinical Kinesiology (Online)
; ABSTRACT Purpose. Age-associated muscle weakness, postural instability, and orthostatic hypotension have been identified as contributing factors to falls, but the relationships among them are not clear. Therefore, the purpose of this study, a two-way factorial design, was to investigate the
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Two hemispheres better than one for seniors
USA Today
; BRAIN Older adults use different regions of the brain than younger ones to perform the same memory and information processing tasks, according to University of Michigan, Ann Arbor, research. Conducted by cognitive neuroscientist Patricia Reuter-- Lorenz and colleagues, it provides intriguing clues
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MUSCLE PHOSPHOCREATINE POST-EXERCISE RECOVERY RATE IS RELATED TO FUNCTIONAL EVALUATION IN HOSPITALIZED AND COMMUNITY-LIVING OLDER PEOPLE
The Journal of Nutrition, Health & Aging
; Abstract: Objective: to explore muscle mitochondria function with respect to age, functional status and nutrition in community-living and recovering hospitalized older subjects. Measurements: subjects were assessed for nutrition, hand-grip strength, 10-meter gait time, a modified timed
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The influence of summary knowledge of results and aging on motor learning.
Research Quarterly for Exercise and Sport
; Learning movement skills is essential to our everyday adaptation to the environment. With aging, the ability to learn new motor skills continues to be crucial for maximizing quality of life. For example, in order to function optimally, older adults may need to learn novel skills such as driving a
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Diet restores youth to aging vessels.
Science News
; Diet restores youth to aging vessels To maintain normal blood pressure, blood vessels must dilate and constrict. Receptors on the vessel walls appear to control these crucial functions, and scientists have postulated that hypertension results when the receptors controlling constriction work well
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Self-reported chair-rise ability relates to stair-climbing readiness of total knee arthroplasty patients: A pilot study
Journal of Rehabilitation Research and Development
; Abstract-Following total knee arthroplasty (TKA), physical therapists must evaluate patient readiness to safely begin stair-climbing. Physical therapists might find self-reported chair-rise ability useful in determining stair-climbing readiness of patients. We grouped 31 subjects who were at
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Prodromal signs and symptoms of a venous pulmonary embolism.(Advanced Practice)(includes table)
MedSurg Nursing
; In the United States, pulmonary embolism (PE) is one of the leading causes of unexpected death and the third most common cause of death following ischemic heart disease and stroke (Feied & Handler, 2002; van Beek et al., 2005). PE and deep vein thrombosis (DVT) are components of the venous
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