PURPOSE To measure the choroidal thickness (CT) after dynamic exercise by using enhanced depth imaging optical coherence tomography (EDI-OCT). MATERIALS AND METHODS A total of 19 healthy participants performed 10 min of low-impact, moderate-intensity exercise (i.e., riding a bicycle ergometer) and were examined with EDI-OCT. Each participant was scanned before exercise and afterward at 5 min ...

44. Newman GF, Rerych SK, Upton MT, Sabiston DC Jr, Jones RI-I: Comparison of electrocardiographic and left ventricular functional changes during exercise. Circulation 62: 1204, 1980 45. Wann LS, Faris JV, Childress RH, Dillon JC, Weyman AE, Feigenbaum H: Exercise cross-sectional echocardiography in ischemic heart disease. Circulation 60: 1300, 1979 46. Sugishita Y, Koseki S: Dynamic exercise e...

Exercise intolerance is common in persons with chronic obstructive pulmonary disease and can result from multiple physiologic factors, including dynamic hyperinflation, gas exchange abnormalities, and pulmonary hypertension. In the initial assessment, keep in mind that many patients underestimate the degree of their impairment. The 6-minute walk test is very useful in assessing the degree of ex...

The purpose of this study was to compare three warm-up protocols--static stretching, dynamic stretching, and light aerobic activity--on selected measures of range of motion and power in untrained females and to investigate the sustained effects at 5 and 30 minutes after warm-up. A total of 24 healthy females (ages 23-29 years) attended one familiarization session and three test sessions on nonc...

Results Our results shows that these patients end expiratory volume (EEV) increased by 14 +/0.4 % compared to quiet breathing during maximum exercise before surgery (P < 0.002). This dynamic hyperinflation or air trapping during exercise was corrected after surgery. Postoperatively their EEV decreased during maximum exercise by 2.3 +/1.4 % at 5 months respectively (P 0.001). The end inspiratory...

Although thallium-201 exercise scintigraphy has been established for the detection of myocardial ischemia and viability, little is known regarding the myocardial thallium-201 kinetics during angioplasty. Herein, we report a 77-year old man with angina pectoris, in whom serial myocardial imaging after a single dose of thallium-201 was helpful in identifying not only the culprit lesion and myocar...

INTRODUCTION Dynamic hyperinflation is an important target in the treatment of COPD. There is increasing evidence that positive expiratory pressure (PEP) could reduce dynamic hyperinflation during exercise. PEP application through a nasal mask and a flow resistance device might have the potential to be used during daily physical activities as an auxiliary strategy of ventilatory assistance. The...

Pricing Asian options based on the arithmetic average, under the Black and Scholes model, involves estimating an integral (a mathematical expectation) for which no analytical solution is available. Pricing their American-style counterparts, which provide early exercise opportunities, poses the additional difficulty of solving a dynamic optimization problem to determine the optimal exercise stra...