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Full-Text Articles in Kinesiology
An Accurate Vo2max Non-Exercise Regression Model For 18 To 65 Year Old Adults, Danielle I. Bradshaw
An Accurate Vo2max Non-Exercise Regression Model For 18 To 65 Year Old Adults, Danielle I. Bradshaw
Theses and Dissertations
The purpose of this study was to develop a regression equation to predict VO2max based on non-exercise (N-EX) data. All participants (N = 100), aged 18-65 years old, successfully completed a maximal graded exercise test (GXT) to assess VO2max (mean ± SD; 39.96 mL∙kg-¹∙min&sup-1; ± 9.54 mL∙kg-¹∙min-¹). The N-EX data collected just before the maximal GXT included the participant's age, gender, body mass index (BMI), perceived functional ability (PFA) to walk, jog, or run given distances, and current physical activity (PA-R) level. Multiple linear regression generated the following N-EX prediction equation (R = .93, SEE = 3.45 mL∙kg-¹∙min-¹, %SEE = …
A New Approach To Modeling Vertical Stiffness In Heel-Toe Distance Runners, Iain Hunter
A New Approach To Modeling Vertical Stiffness In Heel-Toe Distance Runners, Iain Hunter
Faculty Publications
Various models have been used to describe distance running technique. Among these, the mass-spring model is fairly simple to use and apply, but when employed as a model, does not predict vertical force accurately especially when a heel strike is exhibited. The purpose of this article is to demonstrate how the mass-spring model can be modified to provide a simple, yet accurate prediction of ground reaction forces in distance running. Sixteen subjects ran on a force instrumented treadmill. Vertical forces during running at a self-selected pace were collected at 500 Hz. Vertical stiffness was calculated using the conventional mass-spring model …
Physical Activity And Changes In Abdominal Fat Over 18 Months: A Prospective Study Of Middle-Aged Women, Lance Eric Davidson
Physical Activity And Changes In Abdominal Fat Over 18 Months: A Prospective Study Of Middle-Aged Women, Lance Eric Davidson
Theses and Dissertations
Objective: To investigate the extent to which changes in physical activity predict changes in abdominal fat in women over an 18-month period, while statistically controlling the effects of possible confounders, such as age, total body fat percent, and energy intake. Design: A prospective cohort design over 18 months. There was no intervention or treatment. Changes in objectively-measured physical activity were used to predict changes in abdominal fat over the study period. Subjects: 110 healthy, middle-aged women (mean: 41.3±3.3 yrs), primarily Caucasian, educated, and married. Measurements: An objective measure of physical activity (ACT) using CSA accelerometers, worn continuously for 7 consecutive …