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Full-Text Articles in Life Sciences

Comparing Thigh Muscle Cross-Sectional Area And Squat Strength Among National Class Olympic Weightlifters, Power Lifters, And Bodybuilders, James J. Di Naso, Brian L. Pritschet, John D. Emmett, Jill W. Owen, Jeffrey Willardson, Travis W. Beck, Jason M. Defreitas, Fabio E. Fontana Jun 2012

Comparing Thigh Muscle Cross-Sectional Area And Squat Strength Among National Class Olympic Weightlifters, Power Lifters, And Bodybuilders, James J. Di Naso, Brian L. Pritschet, John D. Emmett, Jill W. Owen, Jeffrey Willardson, Travis W. Beck, Jason M. Defreitas, Fabio E. Fontana

Jeffrey Willardson

Few studies have compared anthropometric characteristics among national class athletes from different resistance training disciplines, such as Olympic Weightlifting (OL), Power Lifting (PL), and Bodybuilding (BB). Objective: The purpose of the current study was to determine if significant differences exist in the relationship between thigh muscle cross-sectional area and back squat strength among national class athletes from the sports of OL, PL, and BB. Methods: Fifteen national class athletes were assessed for back squat strength, mid-thigh circumference, and mid-thigh skinfold from which total thigh cross-sectional was estimated. A series of One-Way ANOVAs and Pearson Product Moment Correlations were used to …


Transforming The Nigerian Nation Through Science, Technology And Mathematics Education, Jerome O. Okafor Mar 2012

Transforming The Nigerian Nation Through Science, Technology And Mathematics Education, Jerome O. Okafor

Prof. Jerome O Okafor

No abstract provided.


The Effect Of Load On Movement Coordination During Sled Towing, Michael Lawrence, Daniel Leib, Cara Masterson, Erin Hartigan Jan 2012

The Effect Of Load On Movement Coordination During Sled Towing, Michael Lawrence, Daniel Leib, Cara Masterson, Erin Hartigan

Daniel Leib

INTRODUCTION Towing sleds while walking is a popular resistance exercise for the healthy athlete. One reason for the popularity of sled towing is that it is widely believed to be a ‘functional’ exercise. Preliminary research suggests towing while walking can increases lower extremity moment impulses; however whether towing a sled utilizes the same coordination patterns as un-resisted walking is unknown. While altered patterns may not be as relevant to a healthy athlete, sled towing is also sometimes used in the rehabilitation of athletes who sustained a lower extremity injury (anterior cruciate ligament rupture) with the goal of regaining movement symmetry. …


Effects Of Fatigue On Golf Performance, Daniel J. Leib, Nicholas R. Higdon, W. Holmes Finch, Eric L. Dugan Jan 2012

Effects Of Fatigue On Golf Performance, Daniel J. Leib, Nicholas R. Higdon, W. Holmes Finch, Eric L. Dugan

Daniel Leib

No abstract provided.


Assessing Mental Skill And Technique Use In Applied Interventions: Recognizing And Minimizing Threats To The Psychometric Properties Of The Tops, Charlottee Woodcock, Joan L. Duda, Jennifer Cumming, Lee-Ann Sharp, Mark J. G. Holland Jan 2012

Assessing Mental Skill And Technique Use In Applied Interventions: Recognizing And Minimizing Threats To The Psychometric Properties Of The Tops, Charlottee Woodcock, Joan L. Duda, Jennifer Cumming, Lee-Ann Sharp, Mark J. G. Holland

Jennifer Cumming

Drawing from the experiences of the authors in developing, conducting, and evaluating sport psychology interventions, several considerations are highlighted and recommendations offered for effective psychometric assessment. Using the Test of Performance Strategies (TOPS; Thomas, Murphy, & Hardy, 1999) as a working example, opportunities for bias to undermine a measure’s validity and reliability are discussed with reference to a respondent’s four cognitive processes: (a) comprehension, (b) retrieval, (c) decision-making, and (d) response generation. Further threats to an instrument’s psychometric properties are highlighted in the form of demand characteristics athletes perceive in the environment. With these concerns in mind, several recommendations are …


Further Validation And Development Of The Movement Imagery Questionnaire, Sarah E. Williams, Jennifer Cumming, Nikos Ntoumanis, Sanna M. Nordin-Bates, Richard Ramsey, Craig Hall Jan 2012

Further Validation And Development Of The Movement Imagery Questionnaire, Sarah E. Williams, Jennifer Cumming, Nikos Ntoumanis, Sanna M. Nordin-Bates, Richard Ramsey, Craig Hall

Jennifer Cumming

This research validated and extended the Movement Imagery Questionnaire- Revised (MIQ-R; Hall & Martin, 1997). Study 1 (N = 400) examined the MIQ-R’s factor structure via multitrait-multimethod confirmatory factor analysis. The questionnaire was then modified in Study 2 (N = 370) to separately assess the ease of imaging external visual imagery and internal visual imagery, as well as kinesthetic imagery (termed the Movement Imagery Questionnaire-3; MIQ-3). Both Studies 1 and 2 found that a correlated-traits correlated-uniqueness model provided the best fit to the data, while displaying gender invariance and no significant differences in latent mean scores across gender. Study 3 …


Acute Effects Of Antagonist Stretching On Jump Height, Torque, And Electromyography Of Agonist Musculature, John B. Sandberg, Dale R. Wagner, Jeffrey Willardson, Gerald Aparecido Smith Jan 2012

Acute Effects Of Antagonist Stretching On Jump Height, Torque, And Electromyography Of Agonist Musculature, John B. Sandberg, Dale R. Wagner, Jeffrey Willardson, Gerald Aparecido Smith

Jeffrey Willardson

Although there has been substantial research on the acute effects of static stretching on subsequent force and power development, the outcome after stretching of the antagonist musculature has not been examined. The purpose of this study was to investigate the effects of static stretching of antagonist musculature on multiple strength and power measures. Sixteen trained men were tested for vertical jump height and isokinetic peak torque production during knee extension at 60°.s (SlowKE) and 300°.s (FastKE). Electromyography was recorded for the vastus lateralis and the biceps femoris muscles during isokinetic knee extension. Subjects performed these tests in a randomized counterbalanced …


Book Review: National Title: The Unlikely Tale Of The Naib Tournament, Chad R. Carlson Jan 2012

Book Review: National Title: The Unlikely Tale Of The Naib Tournament, Chad R. Carlson

Chad Carlson

No abstract provided.


A Tale Of Two Tournaments: The Red Cross Games And The Early Ncaa-Nit Relationship, Chad R. Carlson Jan 2012

A Tale Of Two Tournaments: The Red Cross Games And The Early Ncaa-Nit Relationship, Chad R. Carlson

Chad Carlson

The purpose of this article is to explore the relationship between the National Invitational Tournament (NIT) and National Collegiate Athletic Association (NCAA). To do so, the author explores the Red Cross War Benefit Games, which pitted the champions of the two tournaments against one another, with the proceeds benefiting the Red Cross. These contests represented the only times the two tournaments or their teams interacted. The author explores the Games’ significance and the manner in which they helped propel the NCAA men’s basketball tournament to preeminent status.


Have You Considered High School Peer Health Educators?, Mary C. Schutten Jan 2012

Have You Considered High School Peer Health Educators?, Mary C. Schutten

Mary C. Schutten

No abstract provided.