Thesis (Ph. D.)--Florida State University, 2003. / Advisor: Dr. Robert J. Moffatt, Florida State University, College of Human Sciences, Dept. of Nutrition, Food and Exercise Sciences. Title and description from dissertation home page (viewed Sept. 15, 2005). Document formatted into pages; contains xi, 147 pages. Includes bibliographical references.

The purpose of the study was to determine if differences in the loading (or braking) systems of two different types of stationary bicycle ergometers (Monark and Dynavit models) influenced the performances of subjects in similar submaximal and maximal exercise. A maximal treadmill test, also performed by the subjects, was used as a criterion measure with which the maximal bicycle ergometer test results were compared. The possibility of finding differences in the performances of subjects on the two bicycle ergometers and of similarities between maximal bicycle and treadmill tests would appear to have important implications for laboratory and field testing procedures, as well as for costs of equipment used in physical fitness work and exercise physiology. Thirteen non-trained, college-aged male volunteers, 18 to 26 years, took part in the study. Each subject performed one test on each of three pieces of testing equipment; the Dynavit bicycle, the Monark bicycle, and the treadmill. Each test consisted of a maximal exercise bout of a continuous, incremental nature, during which time the appropriate physiological data was recorded. There was an interval of at least three days between tests, the subjects being assigned treatment orders via a Latin square design. Principal variables examined during maximal exercise were total work time and peak oxygen consumption; at submaximal exercise levels they were oxygen uptake and heart rate. Other variables examined, although not of central importance to the study, were maximal heart rate, maximal oxygen pulse, submaximal oxygen pulse, and subjective response to exercise. A Beckman Metabolic Measurement Cart, interfaced with a Hewlett-Packard Data Acquisition system, recorded the pertinent physiological data, which was then analyzed by the use of one and two-way ANOVA's and Newman-Keuls post hoc tests where appropriate. The results indicated no significant differences in total work time, peak oxygen consumption, maximal heart rate, maximal oxygen pulse, submaximal heart rate, submaximal oxygen uptake, submaximal oxygen pulse, and subjective response to exercise between the two bicycle ergometers. Only the treadmill elicited higher values of peak oxygen consumption than either of the cycle ergometers. This Tack of a significant difference suggests that although there may be structural differences in the loading (or braking) systems of the Dynavit and Monark ergometers, these differences are not reflected by the subjects' physiological responses to comparable levels of exercise intensity. Thus the results indicate that these bicycles could be used interchangeably for such predictive tests of physical work capacity as the Astrand-Ryhming Predicted Oxygen Uptake Test or the Modified Sjostrand PWC Test. / Education, Faculty of / Kinesiology, School of / Graduate

Thesis (M.S.)--University of Wisconsin -- La Crosse, 2001. / Includes bibliographical references.

Thesis (M.S.)--Ball State University, 2009. / Title from PDF t.p. (viewed on Dec. 14, 2009). Includes bibliographical references.

No description available.

Workplace sedentary behavior has been associated with many chronic diseases. A nine-month study has been initiated to determine participation and benefits of shared treadmill workstations. It would be an advantage to understand factors that would increase the use of these types of workplace interventions aimed at reducing sedentary behavior. To address some of these factors, characteristics of nineteen office workers willing to participate in this study were investigated. Baseline anthropometric measurements were taken. Participants provided seven-day exercise and sleep logs and three-day dietary records. Accelerometers were given to measure energy expenditure, step counts and activity durations. Participants also completed the questionnaires assessing their expectations and perceptions of a workplace intervention. The willing participants were generally overweight and sedentary middle aged individuals with below average daily energy expenditures and they had low fatigue and pain levels, poor sleep quality ratings, and wanted to reduce their sedentary behavior to achieve health benefits.

The present study validates the Treadmill Rehabilitation Platform (TRP) protocol that assessed standing balance performance; spatial and temporal gait variability; stability measures and visual spatial cognitive task performances. Healthy individuals (mean age = 61.4± 4.4 years; n = 30) performed tasks from the TRP protocol while standing and while walking on treadmill. Moderate to High test retest reliability was observed for the TRP tool measures with a few exceptions. Standing balance decreased significantly as visual task load increased. Spatial and temporal gait variability increased whereas walking stability decreased significantly as visual task load increased. Visual task performance decreased significantly as physical load increased. In conclusion, the TRP protocol allows us to assess the ability to prioritize the division of attention when visual spatial cognitive tasks are performed while standing and during walking. Also, it allows reliable assessment of the effects of compromised attention during the tasks performances.

The present study validates the Treadmill Rehabilitation Platform (TRP) protocol that assessed standing balance performance; spatial and temporal gait variability; stability measures and visual spatial cognitive task performances. Healthy individuals (mean age = 61.4± 4.4 years; n = 30) performed tasks from the TRP protocol while standing and while walking on treadmill. Moderate to High test retest reliability was observed for the TRP tool measures with a few exceptions. Standing balance decreased significantly as visual task load increased. Spatial and temporal gait variability increased whereas walking stability decreased significantly as visual task load increased. Visual task performance decreased significantly as physical load increased. In conclusion, the TRP protocol allows us to assess the ability to prioritize the division of attention when visual spatial cognitive tasks are performed while standing and during walking. Also, it allows reliable assessment of the effects of compromised attention during the tasks performances.

Workplace sedentary behavior has been associated with many chronic diseases. A nine-month study has been initiated to determine participation and benefits of shared treadmill workstations. It would be an advantage to understand factors that would increase the use of these types of workplace interventions aimed at reducing sedentary behavior. To address some of these factors, characteristics of nineteen office workers willing to participate in this study were investigated. Baseline anthropometric measurements were taken. Participants provided seven-day exercise and sleep logs and three-day dietary records. Accelerometers were given to measure energy expenditure, step counts and activity durations. Participants also completed the questionnaires assessing their expectations and perceptions of a workplace intervention. The willing participants were generally overweight and sedentary middle aged individuals with below average daily energy expenditures and they had low fatigue and pain levels, poor sleep quality ratings, and wanted to reduce their sedentary behavior to achieve health benefits.

Thesis (M.S.)--University of Wisconsin -- La Crosse, 1999. / Digitized and made available by the University of Wisconsin--La Crosse, Murphy Library. Includes bibliographical references. Online version of print edition.