نتایج جستجو برای: dynamic exercise

تعداد نتایج: 574463  

Journal: :American journal of physiology. Heart and circulatory physiology 2007
Shigehiko Ogoh James P Fisher Peter B Raven Paul J Fadel

We sought to investigate arterial baroreflex (ABR) control of muscle sympathetic nerve activity (MSNA) in the transition from rest to steady-state dynamic exercise. This was accomplished by assessing the relationship between spontaneous variations in diastolic blood pressure (DBP) and MSNA at rest and during the time course of reaching steady-state arm cycling at 50% peak oxygen uptake (VO(2pea...

Journal: :European respiratory review : an official journal of the European Respiratory Society 2010
P Palange

D yspnoea and reduced exercise tolerance are the hallmarks of chronic obstructive pulmonary disease (COPD). In the advanced phases of the disease the ability to exercise is mainly limited by the combination of a reduced ventilatory capacity, increased ventilatory requirement and lung dynamic hyperinflation. Importantly, the aforementioned respiratory mehanical abnormalities are well recognised ...

Journal: :Clinical and experimental immunology 1998
H H Smits K Grünberg R H Derijk P J Sterk P S Hiemstra

Glucocorticoids (GC) play an important role in the treatment of inflammatory diseases like asthma. However, in selected patients a relative resistance to GC has been reported. Recently, it has been suggested that GC sensitivity of peripheral blood leucocytes may be regulated in a dynamic fashion during exercise, in association with activation of the hypothalamic-pituitary-adrenal (HPA) axis. Th...

Journal: :Thorax 2004
W D C Man N Mustfa D Nikoletou S Kaul N Hart G F Rafferty N Donaldson M I Polkey J Moxham

BACKGROUND Some patients with irreversible chronic obstructive pulmonary disease (COPD) experience subjective benefit from long acting bronchodilators without change in forced expiratory volume in 1 second (FEV(1)). Dynamic hyperinflation is an important determinant of exercise induced dyspnoea in COPD. We hypothesised that long acting bronchodilators improve symptoms by reducing dynamic hyperi...

Journal: :Neurorehabilitation and neural repair 2015
Ying-Yi Liao Yea-Ru Yang Shih-Jung Cheng Yih-Ru Wu Jong-Ling Fuh Ray-Yau Wang

BACKGROUND Obstacle crossing is a balance-challenging task and can cause falls in people with Parkinson's disease (PD). However, programs for people with PD that effectively target obstacle crossing and dynamic balance have not been established. OBJECTIVE To examine the effects of virtual reality-based exercise on obstacle crossing performance and dynamic balance in participants with PD. ME...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 1998
Heather R Burger Margaret P Chandler David W Rodenbaugh Stephen E DiCarlo

We tested the hypothesis that dynamic exercise resets the operating point and attenuates the gain of the arterial baroreflex regulation of heart rate (HR) in rats. Seven adult female spontaneously hypertensive rats (SHR) were chronically instrumented with left carotid arterial catheters. After the rats recovered, arterial baroreflex function was examined by recording reflex changes in HR in res...

Journal: :European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology 2009
Masaki Izumo Patrizio Lancellotti Kengo Suzuki Seisyou Kou Takashi Shimozato Akio Hayashi Yoshihiro J Akashi Naohiko Osada Kazuto Omiya Sachihiko Nobuoka Eiji Ohtaki Fumihiko Miyake

AIMS Left ventricular (LV) shape and LV dyssynchrony are two cofactors associated with functional mitral regurgitation (MR) in patients with heart failure. Both can be accurately examined by real-time three-dimensional echocardiography (3DE). We examined the relationship between dynamic MR and exercise-induced changes in LV shape and synchronicity using 3DE. METHODS AND RESULTS Fifty patients...

2011
Jagatheesan Alagesan

Objective & Background: To determine the effect of the dynamic platform lateral step-up and stable platform lateral step-up weight bearing standing exercise in strengthening of hip abductor. Many researchers have reported that strengthening of hip muscles as important component especially hip abductors in lower extremity rehabilitation program. Study Design: Single blinded randomized comparativ...

Journal: :Journal of magnetic resonance imaging : JMRI 2017
Zhijun Li Matthew D Muller Jianli Wang Christopher T Sica Prasanna Karunanayaka Lawrence I Sinoway Qing X Yang

PURPOSE To evaluate the dynamic characteristics of T2* -weighted signal change in exercising skeletal muscle of healthy subjects and peripheral artery disease (PAD) patients under a low-intensity exercise paradigm. MATERIALS AND METHODS Nine PAD patients and nine age- and sex-matched healthy volunteers underwent a low-intensity exercise paradigm while magnetic resonance imaging (MRI) (3.0T) w...

Journal: :American journal of respiratory and critical care medicine 2009
Gaspar R Chiappa Fernando Queiroga Ethiane Meda Leonardo F Ferreira Fernando Diefenthaeler Marcos Nunes Marco A Vaz Maria Christina L Machado Luis Eduardo Nery J Alberto Neder

RATIONALE Normoxic heliox (mixture of 79% He and 21% O(2)) may enhance exercise tolerance in patients with chronic obstructive pulmonary disease (COPD). It remains to be determined whether part of these beneficial effects could be ascribed to increased O(2) delivery (O(2)DEL) to locomotor muscles. OBJECTIVES To investigate the effects of heliox on peripheral O(2)DEL and utilization during exe...

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