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Full-Text Articles in Medicine and Health Sciences
The Effect Of Menstrual Phase And Oral Contraceptive Steroids On Caffeine During Cycling Performance, Annette M. Lemanski
The Effect Of Menstrual Phase And Oral Contraceptive Steroids On Caffeine During Cycling Performance, Annette M. Lemanski
Masters Theses, 2010-2019
PURPOSE: There is evidence that female sex hormones impact caffeine metabolism, with decreased CYP1A2 activity and diminished caffeine clearance in women with higher estrogen levels. Therefore, the objectives of this project were to determine the effects of oral contraceptives and menstrual cycle on the benefits of caffeine supplementation for cycling performance. METHODS: Sixteen recreationally trained female cyclists, oral contraceptive steroid (OCS) users (n=8, age = 21.4 ± 1.4 years, height = 168.4 ± 3.6 cm, weight = 63.6 ± 7.2kg, VO2max = 48.0 ± 4.0 ml/kg/min), and non-users (n=8, age = 20.9 ± 2.1 years, height = 161.0 ± …
Technical And Physical Match Demands Of A Ncaa Division I Soccer Goalkeeper, Joanne Spalding
Technical And Physical Match Demands Of A Ncaa Division I Soccer Goalkeeper, Joanne Spalding
Electronic Theses and Dissertations
The purpose of this study was to provide a better understanding of the goalkeeper position in order to prepare goalkeepers for competition. The objectives of this study were to characterize the technical and physical demands of an NCAA Division I collegiate goalkeeper over three seasons and examine trends from season to season. Count and frequency for each definition were analyzed. Results show that although the goalkeeper’s technical demands were characterized by engaging in play without action and being in the goal area, the gradually increased use of the feet over three season’s hints on the importance of skills performed with …