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Theses/Dissertations

Kinesiology

Soccer

Theses and Dissertations

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Comparison Of Clinician Assisted Versus Unassisted Pnf Stretching On Hamstring Flexibility, Isometric Force Output, And Maximum Vertical Jump Height, Joel T. Lockhart Mar 2017

Comparison Of Clinician Assisted Versus Unassisted Pnf Stretching On Hamstring Flexibility, Isometric Force Output, And Maximum Vertical Jump Height, Joel T. Lockhart

Theses and Dissertations

Introduction: Hamstring strains are among one of the most common acute injuries that occur in soccer players. Previous research has shown that reduced hamstring flexibility is a risk factor for injury, however this is modifiable through stretching. Some stretching techniques have contributed to decreased performance on measures important to success in sport. Proprioceptive neuromuscular facilitation (PNF) is one effective stretching technique to improve hamstring flexibility, but requires a trained partner or clinician to perform properly. It is unknown if the performance of PNF stretching without a clinician’s assistance could be as effective. It is also unknown if PNF stretching ...


Development Of A Methodology For The Quantification Of Physiological Load For Soccer Players, Robert W. Wilson Aug 2012

Development Of A Methodology For The Quantification Of Physiological Load For Soccer Players, Robert W. Wilson

Theses and Dissertations

The overall aim of this research project was to devise valid mathematical models for quantifying the physiological load (PL) of practices and competitions for female and male NCAA Division I collegiate soccer players. Data from sub-maximal and maximal effort tests were used to construct these models. After development of the physiological load quantification (PLQ) models, the validity of them occurred by comparing them to the physiological gold standard of performed work, volume of oxygen consumed (V*O2). Last, comparisons of the scores from the PLQ models to the PL scores from the previous models occurred. In combination these three studies ...


Effect Of High-Speed Treadmill Training With A Body Weight Support System In A Sport Acceleration Program, Carie Suzanne Eastman Aug 2011

Effect Of High-Speed Treadmill Training With A Body Weight Support System In A Sport Acceleration Program, Carie Suzanne Eastman

Theses and Dissertations

Introduction: Maximum running acceleration essential components in many sports. The identification of specific training protocols to maximize sprint speed would be useful knowledge for soccer coaches and players.

Purpose: The purpose of this study was to determine the effect of a high-speed treadmill with the use of a body-weight support system in a 6-week sport acceleration program on: 40-yard sprint time, maximal isometric knee flexor and extensor strength.

Methods: 32 female soccer players (age 16 ± 1.19 yrs) participated in two treatment groups and one control group. Both treatment groups participated in a 12-session sport acceleration program. The first treatment ...