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Full-Text Articles in Medicine and Health Sciences

Relationships Between Jump Characteristics Of Collegiate Female Athletes Competing In Different Disciplines, Christopher J. Macdonalds, Hugh S. Lamont, John C. Garner, Jeremy A. Gentles, Ashley A. Kavanaugh, Michael H. Stone Jan 2010

Relationships Between Jump Characteristics Of Collegiate Female Athletes Competing In Different Disciplines, Christopher J. Macdonalds, Hugh S. Lamont, John C. Garner, Jeremy A. Gentles, Ashley A. Kavanaugh, Michael H. Stone

ETSU Faculty Works

No abstract provided.


The Acute Effects Of Whole Body Vibration On Isometric Mid-Thigh Pull Performance, W. Guy Hornsby, Mark A. South, Ashley Kavanaugh, Andrew S. Layne, G. Gregory Haff, William A. Sands, Marco Cardinale, Michael W. Ramsey, Michael H. Stone Dec 2009

The Acute Effects Of Whole Body Vibration On Isometric Mid-Thigh Pull Performance, W. Guy Hornsby, Mark A. South, Ashley Kavanaugh, Andrew S. Layne, G. Gregory Haff, William A. Sands, Marco Cardinale, Michael W. Ramsey, Michael H. Stone

ETSU Faculty Works

Acute exposure to vibration has been suggested to produce transient increases in muscular strength (1,2,8), vertical jump displacement (4,8), and power output (2,6,7) recorded while performing various tasks. It has been hypothesized that the reported acute vibration induced increases in performance occur as a result of alterations in neuromuscular stimulation (1,3,4). Specifically, most studies have ascribed the observed improvements to the likeliness of Whole Body Vibration (WBV) in producing a “tonic vibration reflex” (TVR) in which the primary nerve endings of the Ia afferents of the muscle spindle are activated. This is thought to result in the excitation of the …


Strength Performance Assessment In A Simulated Men’S Gymnastics Still Rings Cross, Jennifer K. Dunlavy, William A. Sands, Jeni R. Mcneal, Michael H. Stone, Sarah L. Smith, Monem Jemni, G. Gregory Haff Mar 2007

Strength Performance Assessment In A Simulated Men’S Gymnastics Still Rings Cross, Jennifer K. Dunlavy, William A. Sands, Jeni R. Mcneal, Michael H. Stone, Sarah L. Smith, Monem Jemni, G. Gregory Haff

ETSU Faculty Works

Athletes in sports such as the gymnastics who perform the still rings cross position are disadvantaged due to a lack of objective and convenient measurement methods. The gymnastics “cross ”is a held isometric strength position considered fundamental to all still rings athletes. The purpose of this investigation was to determine if two small force platforms (FPs) placed on supports to simulate a cross position could demonstrate the fidelity necessary to differentiate between athletes who could perform a cross from those who could not. Ten gymnasts (5 USA Gymnastics, Senior National Team, and 5 Age Group Level Gymnasts) agreed to participate. …


A Pilot Study To Measure Force Development During A Simulated Maltese Cross For Gymnastics Still Rings, William A. Sands, Michael H. Stone, Jeni R. Mcneal, Sarah L. Smith, Monem Jemni, Jennifer K. Dunlavy, Koichi Mizushima, G. Gregory Haff Jul 2006

A Pilot Study To Measure Force Development During A Simulated Maltese Cross For Gymnastics Still Rings, William A. Sands, Michael H. Stone, Jeni R. Mcneal, Sarah L. Smith, Monem Jemni, Jennifer K. Dunlavy, Koichi Mizushima, G. Gregory Haff

ETSU Faculty Works

The purpose of this study was to develop a measurement procedure for the Maltese cross performed on still rings. Sixteen elite/international gymnasts participated. Two small force platforms (FPs) interfaced to a portable data logger (100 Hz sampling rate) were placed under the gymnasts’ hands in a simulated Maltese position (i.e., prone). Gymnasts attempted to rise a few centimeters to a Maltese position while vertical ground reaction forces were recorded bilaterally. Results indicated that the FPs had sufficient fidelity to differentiate gymnasts’ abilities to perform a Maltese. This method may serve to gauge the preparedness of male gymnasts performing this important …