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The effects of prolonged exercise on...

Frey, Elizabeth.

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The effects of prolonged exercise on left ventricular function in male recreational athletes.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	The effects of prolonged exercise on left ventricular function in male recreational athletes./
作者:	Frey, Elizabeth.
面頁冊數:	105 p.
附註:	Source: Masters Abstracts International, Volume: 44-06, page: 2786.
Contained By:	Masters Abstracts International44-06.
標題:	Biology, Physiology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MR16344
ISBN:	9780494163443

The effects of prolonged exercise on left ventricular function in male recreational athletes.
Frey, Elizabeth.

The effects of prolonged exercise on left ventricular function in male recreational athletes. - 105 p.

Source: Masters Abstracts International, Volume: 44-06, page: 2786.

Thesis (M.Sc.)--University of Toronto (Canada), 2006.

We hypothesized that altered left ventricular function would be evident in a decreased dose-response to dobutamine, manifested in impaired inotropic and chronotropic function after prolonged exercise.

ISBN: 9780494163443Subjects--Topical Terms:

1017816
Biology, Physiology.

The effects of prolonged exercise on left ventricular function in male recreational athletes.
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245 1 4 $a The effects of prolonged exercise on left ventricular function in male recreational athletes.
300 $a 105 p.
500 $a Source: Masters Abstracts International, Volume: 44-06, page: 2786.
502 $a Thesis (M.Sc.)--University of Toronto (Canada), 2006.
520 $a We hypothesized that altered left ventricular function would be evident in a decreased dose-response to dobutamine, manifested in impaired inotropic and chronotropic function after prolonged exercise.
520 $a Prolonged exercise is a significant challenge to cardiovascular regulation; however, studies of its effect on cardiac function are equivocal. Objectives of the current study were to determine if cardiac fatigue can be observed and if beta-adrenergic desensitization occurs.
520 $a Subjects included 12 healthy, males (43.5 +/- 6.5 years). Maximal oxygen consumption was determined from an incremental cycle ergometer test (HRmax = 175.6 +/- 6.6 bpm). A second test consisted of a prolonged exercise challenge (120 min at 75% HRmax) and baseline/recovery dobutamine challenges. Measures were obtained through M-mode and two-dimensional echocardiography. Left ventricular dysfunction was not reported during a 120 minute bout of cycle exercise at 75% HRmax in a middle aged, male cohort; however, a trend for reduced LV function was reported in a post-exercise dobutamine challenge.
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650 4 $a Biology, Physiology. $3 1017816
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