Sara M. Dougherty

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The energy expenditure for and heart rate responses to common household tasks were determined in 26 older (mean age 62 +/- 2 years) women with coronary artery disease (CAD). Each activity was performed at a self-determined pace for 6 or 8 minutes. The average oxygen uptake (ml/kg/min) for each task evaluated was 6.5 for washing dishes, 6.8 for ironing, 7.2(More)
OBJECTIVES The objective of this study was to evaluate the effect of age and coronary artery disease on responses to snow shoveling. BACKGROUND Little information is available on the hemodynamic and metabolic responses to snow shoveling. METHODS Sixteen men with asymptomatic coronary artery disease and relatively good functional work capacity, 13 older(More)
To investigate the effect of temperature stress on responses to static-dynamic work in patients with ischemic heart disease (IHD), 10 men with IHD shoveled gravel for 30 min in a warm (29 degrees C), neutral (24 degrees C), and cold (-8 degrees C) environment (on separate days). A pace of 15 lifts.min-1 was set, and the load per lift approximated 5.5 kg.(More)
We evaluated the oxygen uptake and heart-rate responses to self-paced snow blowing and snow shoveling in 10 men with asymptomatic coronary artery disease, 10 older normal men, and six younger normal men. Mean peak treadmill oxygen uptake in the three groups ranged from 26.4 +/- 1.1 to 47.3 +/- 3.9 ml/kg per min (P < 0.05). Oxygen uptake during snow blowing(More)
The energy expenditure and hemodynamic responses to tasks performed on the Baltimore Therapeutic Equipment (BTE) work simulator were evaluated in men with coronary artery disease and compared to tasks performed at a laboratory workstation in which actual tools and equipment were used. Met units for the BTE work simulator and corresponding workstation tasks,(More)
The effect of moderate heat stress on cardiac performance during sustained moderate physical work was evaluated in men greater than or equal to 6 weeks after a cardiac event. Subjects (n = 10) performed upright leg cycle ergometer exercise at approximately 50% of peak oxygen uptake for up to 60 minutes in warm (30.0 +/- 0.9 degrees C) and thermoneutral(More)
The primary purpose of the present study was to determine oxygen uptake ( $$\dot VO_2$$ ) and heart rate (HR) responses of patients with coronary artery disease (CAD) to common lawn-care activities. The study was conducted in three phases. In phase I, 8 men with CAD performed 30 min of push motorized lawn mowing at a self-paced rate. In phase II, 9 men with(More)
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