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Exercise Science Commons

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Full-Text Articles in Exercise Science

Stride Length-Speed Relationship During Body Weight Supported Running, Carmen Chona Aug 2014

Stride Length-Speed Relationship During Body Weight Supported Running, Carmen Chona

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to determine if body weight support influences the stride length-speed relationship. Additionally, the purpose was to determine if impact characteristics of running are influenced by body weight support and speed. Subjects (n=10; 6 female, 4 male) volunteered to participate in this study. All subjects were injury free and were comfortable running on a treadmill for 30 minutes. Subjects ran on a lower body positive (LBPP, Alter-G, G-Trainer) treadmill for 4 conditions of body weight (100, 40, 30 and 20% of body weight) and 4 running speeds (100, 110, 120 and 130% of the preferred …


Effect Of Racing Flats On Running Economy In Male Adolescent Runners, Paul Hafen May 2013

Effect Of Racing Flats On Running Economy In Male Adolescent Runners, Paul Hafen

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to investigate whether running economy differs in racing flats versus standard running shoes in high school cross-country runners. In order to measure running economy the oxygen cost of running (mL O2∙kg-1∙min-1) was measured in 20 male adolescent runners (mean age = 16.25 ± 0.97 years, 5 km best time = 17.52 ± 0.78 min) when running two separate trials at a controlled speed. The speed was determined by estimating treadmill running speed at 85% of each runner's VO2max. Each trial required the participants to run while …


Effects Of Positive Feedback On Oxygen Consumption And Heart Rate During A 3-Minute Step Test, Leighann Dewitt Aug 2012

Effects Of Positive Feedback On Oxygen Consumption And Heart Rate During A 3-Minute Step Test, Leighann Dewitt

UNLV Theses, Dissertations, Professional Papers, and Capstones

The positive effects of enhanced expectancies on motor performance and learning have been demonstrated by numerous studies. A more recent study by Stoate, Wulf, and Lewthwaite (2012) showed than enhancing one's expectancy by giving positive feedback increased movement efficiency and decreased oxygen consumption in experienced runners during a 20 minute running test at 75% of max oxygen consumption, compared to those who received no feedback. The purpose of the present study was to test if enhancing expectancies can improve movement efficiency (i.e., reduce oxygen consumption) during a sub-maximal exercise test. Participants were randomly assigned to one of two groups, enhanced …