Results 251 to 260 of about 93,194 (290)
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Physical Therapy, 1981
This isometric exercise apparatus was designed to allow a patient to perform isometric hip exercises following bilateral pelvic osteotomies. Isometric exercises were provided to maintain muscle tone in the patient's lower extremities as he was on prolonged bed rest. Prior to the use of this device it was necessary for a physical therapist to assist the
Sandy B Ganz, Jill Young
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This isometric exercise apparatus was designed to allow a patient to perform isometric hip exercises following bilateral pelvic osteotomies. Isometric exercises were provided to maintain muscle tone in the patient's lower extremities as he was on prolonged bed rest. Prior to the use of this device it was necessary for a physical therapist to assist the
Sandy B Ganz, Jill Young
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Ocular Hemodynamics during Isometric Exercise
Microvascular Research, 2001The autoregulatory capacity of the human retina is well documented, but the pressure-flow relationship of the human choroid is still a matter of controversy. Recent data, using laser Doppler flowmetry to measure choroidal blood flow, indicate that the choroid has some autoregulatory potential, whereas most data using other techniques for the assessment
B, Kiss +5 more
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Plasma Catecholamines during Sustained Isometric Exercise
Clinical Science, 19731. Plasma catecholamine, haemodynamic and metabolic responses to sustained isometric exercise were studied in eight healthy subjects, who maintained handgrip at the 30% level of maximal voluntary contraction (MVC) for as long as possible. 2. The sustained handgrip was accompanied by a significant increase in plasma noradrenaline (NA) and
S, Kozlowski +4 more
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BRIEF MAXIMAL ISOMETRIC EXERCISE IN HYPERTENSION
Journal of the American Geriatrics Society, 1971Abstract Brief, maximal isometric exercise of six seconds' duration, repeated three times daily for five to eight weeks may be associated with lowering of the blood pressure in hypertensive patients. In 8 subjects with hypertension there was a decrease of 16–42 mm Hg in systolic pressure and 2–24 mm in diastolic pressure.
B, Kiveloff, O, Huber
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Energetics of isometric exercise in man
Journal of Applied Physiology, 1976In isometric contractions of the plantar flexors (5–40% of maximal tension, Tmax), VO2 is linearly related to the force exerted, averaging 2 ml/min-kg of tension. At tension levels above 5% Tmax the lactic acid contribution to the overall energy demand is constant at about 20%.
P. Cerretelli +3 more
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Effects of nitroglycerin on isometric exercise
American Heart Journal, 1983Eight patients with ischemic heart disease performed isometric handgrip of five minutes' duration at 30% of their maximum voluntary contraction, before and after administration of 0.4 mg sublingual nitroglycerin (NTG). Although isometric exercise resulted in similar rise of left ventricular systolic pressure (LVSP) before and after NTG, the level of ...
A P, Flessas, T J, Ryan
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Ophthalmic Arterial Hemodynamics During Isometric Exercise
Journal of Glaucoma, 1995Isometric exercise raises systemic arterial pressure and simultaneously lowers intraocular pressure. Together, these pressor effects increase calculated ocular perfusion pressure and test the capacity for flow and pressure autoregulation in the orbital circulation.We investigated in 17 young, healthy subjects the effect of isometric exercise on ...
D, Beck, A, Harris, D, Evans, B, Martin
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The nasal response to isometric exercise
Clinical Otolaryngology, 1995The cardiovascular response to isometric exercise is well understood. However, the response of the nasal mucosa is less well known. We have attempted to document this response in normal individuals. Ten individuals with no history of nasal disease or allergy were studied.
A D, Wilde, J A, Cook, A S, Jones
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Creatine kinase isoforms following isometric exercise
Muscle & Nerve, 1987AbstractThe present study assessed creatine kinase (CK) activity, CK MM isoforms, and muscle soreness following an exercise regimen designed to induce skeletal muscle damage. Eight college‐age subjects performed 40 maximal isometric contractions of the knee extensor muscles (10‐second contraction/20‐second rest). Serum samples and soreness ratings were
P M, Clarkson +4 more
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Isometric Exercise Testing-Reply
Archives of Internal Medicine, 1983In Reply. —Dr Simmons raises two important questions: (1) Can contracting muscles develop force without shortening? (2) What is the precise mechanism for the increase in BP observed during isometric exercise? Before answering the first question, I want to make clear that the term shortening as used herein refers to the external length of the muscle ...
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