A multivariate observational analysis on the relationship between coffee consumption and cigarette smoking to blood lipids, hemodynamics, cardiac rate, and respiratory functions

dc.contributor.author Ludwig, David
dc.contributor.department Education
dc.date 2018-08-17T01:57:34.000
dc.date.accessioned 2020-07-02T06:06:25Z
dc.date.available 2020-07-02T06:06:25Z
dc.date.issued 1982
dc.description.abstract <p>Four hundred seventy-eight male employees of the Iowa Department of Public Safety were questioned regarding usage of cigarettes and coffee, prior to a 52 week prescribed exercise training program. Subjects were classified as smokers and nonsmokers across five coffee usage categories, ranging from nondrinkers to heavy drinkers (2 x 5 factorial). Measurements taken during entry into the program allowed analysis across nine dependent variables, believed to be linked to coronary heart disease. Dependent effects included; (a) FEV(,1), (b) total serum cholesterol, (c) triglycerides, (d) HDL-c, (e) resting systolic blood pressure, (f) resting diastolic blood pressure, (g) resting heart rate, (h)(' )VO(,2)max, and (i) max double product. Variability due to age, weight, activity level, and body composition was removed prior to analysis. Multivariate analysis of variance indicated no overall coffee by cigarette usage interaction and no overall main effect of coffee consumption. An overall main effect of smoking was detected, with follow-up analysis revealing higher levels of HDL-c in nonsmokers, lower systolic and diastolic blood pressures in smokers, and higher(' )VO(,2)max values for nonsmokers. Smokers also had lower FEV(,1) percentages, but only at the older ages. Although statistically significant, the adjusted mean HDL-c values differed by only 4 mg/dl, systolic and diastolic blood pressure by 2-3 mg, Hg, and VO(,2)max by 1 liter/min. The amount of explained variance by whether a person smoked or not was less than 3 percent for HDL-c and systolic blood pressure and less than 1 percent for diastolic blood pressure and VO(,2)max. Although it was concluded that these differences are probably real, they are unlikely to be important from a physiological and clinical standpoint.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/8364/
dc.identifier.articleid 9363
dc.identifier.contextkey 6333718
dc.identifier.doi https://doi.org/10.31274/rtd-180813-11986
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/8364
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/81344
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/8364/r_8307767.pdf|||Sat Jan 15 02:10:19 UTC 2022
dc.subject Professional studies in education
dc.subject Education (Research and evaluation)
dc.subject Education
dc.subject Research and evaluation
dc.title A multivariate observational analysis on the relationship between coffee consumption and cigarette smoking to blood lipids, hemodynamics, cardiac rate, and respiratory functions
dc.type dissertation
dspace.entity.type Publication
thesis.degree.level Doctor of Philosophy
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