A comparison of oxygen uptake and venous blood lactic acid values for normal subjects and cardiac patients while performing a modified Bruce protocol

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dc.contributor.advisor Getchell, Bud, 1934- en_US
dc.contributor.author Sullivan, Michael J. (Student at Ball State University) en_US
dc.date.accessioned 2011-06-03T19:33:19Z
dc.date.available 2011-06-03T19:33:19Z
dc.date.created 1982 en_US
dc.date.issued 1982
dc.identifier LD2489.Z72 1982 .S85 en_US
dc.identifier.uri http://cardinalscholar.bsu.edu/handle/handle/182614
dc.description.abstract Clinically, the modified Bruce protocol is widely used to predict functional capacity in cardiac patients. However, it has been suggested that cardiac patients have lower oxygen uptakes for standard workloads. In order to study this, we measured oxygen uptake (V02) and venous bloodV02 derived from lactic acid concentration during a modified Bruce treadmill protocol in 12 pest myocardial infarction (MI) and 12 normal males. During three stages of the protocol mean oxygen uptake was significantly lower (1.42 - 6.2 ml/kg.min; p < .001) for the pest MI than the normal males.However, venous blood lactic acid concentrations were not different at these stages. The MI patients' measured V02 for three stages of the protocol ranged from 1.8 - 7.3 ml/kg.min lower than the Bruce predictions for cardiacs. In addition, measured V02 (max) for cardiac patients were from 3.68 to 11.15 ml/kg.min lower than the predicted the normal subjects. These data suggest myocardial damage may slow oxygen kinetics and results in lower actual V02during treadmill testing. However, blood lactic acid concentrations failed to demonstrate an anaerobic compensation for the lower V02 in pest MI patients.
dc.format.extent ii, 50 leaves : ill. ; 28 cm. en_US
dc.source Virtual Press en_US
dc.subject.lcsh Heart function tests. en_US
dc.subject.lcsh Heart -- Diseases -- Patients -- Rehabilitation. en_US
dc.title A comparison of oxygen uptake and venous blood lactic acid values for normal subjects and cardiac patients while performing a modified Bruce protocol en_US
dc.description.degree Thesis (M.A.)
dc.identifier.cardcat-url http://liblink.bsu.edu/catkey/386086 en_US


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  • Master's Theses [5454]
    Master's theses submitted to the Graduate School by Ball State University master's degree candidates in partial fulfillment of degree requirements.

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