Sports Sciences Commons^™

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

Faculty Research and Creative Activity

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 …

The Effect Of Different Set-Repetition Protocols On Squat Technique In Resistance Trained Individuals, Ashley Pandit

Master's Theses

The effect of different set-repetition protocols on squat technique in resistance trained individuals.

Pandit, AL, Kraemer, WJ, Hooper, DR.

Purpose: The purpose of this investigation is to determine whether or not the increase in repetitions within a set will change the technique of the exercise, and how repetition number in a set affects exercise technique in resistance trained individuals in three different set-repetition protocols equated by total volume.

Methods: 10 men (24.3 ± 2.8 yrs; 179.7 ± 5.7 cm; 85.5 ± 12.5 kg) and 10 women (23.9 ± 2.4 yrs; 166.2 ± 9.1 cm; 66.8 ± 8.4 kg) were the …

A Comparison Of Three Bicycle Pedal Types And Power Output, Brandon Kuhn

Master's Theses or Doctor of Nursing Practice

The purpose of this study was to examine the power output over a 30-second maximum effort bicycle sprint with three different pedal types; clipless, toe-strap, and flat. The participants for this investigation were eight (7 males and 1 female) mountain bikers with ages between 20 and 55 ( Age = 40) from the Central Kansas Mountain Bike Club. Each participant was required to provide his or her own bicycle and the researchers provided the training stand, Saris CycleOps PowerTap rear wheel, and Garmin Edge 500 cycling computer used for data collection. Testing procedure consisted of a warmup, 30- second maximal …

Effects Of Two Contrast Training Programs On Jump Performance In Rugby Union Players During A Competition Phase, C K Argus, N D Gill, J W Keogh, Michael Mcguigan, W G Hopkins

Research outputs 2012

Purpose: There is little literature comparing contrast training programs typically performed by team-sport athletes within a competitive phase. We compared the effects of two contrast training programs on a range of measures in high-level rugby union players during the competition season. Methods: The programs consisted of a higher volume-load (strength-power) or lower volume-load (speed-power) resistance training; each included a tapering of loading (higher force early in the week, higher velocity later in the week) and was performed twice a week for 4 wk. Eighteen players were assessed for peak power during a bodyweight countermovement jump (BWCMJ), bodyweight squat jump (BWSJ), …

Anthropometric Characteristics, Upper-Body Strength, And Sprint Paddling Performance In Competitive Surfers, Jeremy Sheppard, Mark Osborne, Dale Chapman, Mark Andrews

Research outputs 2012

The present study examined the potential differences in anthropometric characteristics, upper-body strength, and sprint paddling performance between youth and senior competitive surfers. Twenty competitive male surfers (19.1±6.8 years, 168.2±11.3 cm, 61.7±13.6 kg) were assessed for stature, mass, arm-span, ∑ 7 site skinfold thickness, Lean-Mass Ratio (LMR, ∑ 7 site skinfold/kg body-mass), pronated pull-up 1 repetition maximum (1 RM) and sprint paddling performance from a stationary start to 15 m. Independent t-tests were used to compare potential differences between youth (n:10) and senior group (n:10) of competitive surfers, with Cohen’s Effect Size (d) applied to reflect the magnitude of any differences …

Monitoring Neuromuscular Fatigue In High Performance Athletes, Kristie-Lee Taylor

Theses: Doctorates and Masters

With improving professionalism of sports around the world, the volume and frequency of training required for competitive performances at the elite level has increased concurrently. With this amplification in training load comes an increased need to closely monitor the associated fatigue responses, since maximising the adaptive response to training is also reliant on avoiding the negative consequences of excessive fatigue. The rationale for the experimental chapters in this thesis was established after considering survey responses regarding current best practice for monitoring fatigue in high performance sporting environments (Chapter 3). On the basis of the results, vertical jump assessments were selected …

Sources Of Variability In Iso-Inertial Jump Assessments, Kristie-Lee Taylor, John Cronin, Nicholas Gill, Dale Chapman, Jeremy Sheppard

Research outputs pre 2011

Purpose: This investigation aimed to quantify the typical variation for kinetic and kinematic variables measured during loaded jump squats. Methods: Thirteen professional athletes performed six maximal effort countermovement jumps on fouroccasions. Testing occurred over 2 d, twice per day (8 AM and 2 PM) separated by 7 d, with the same procedures replicated on each occasion. Jump height, peak power (PP), relative peak power (RPP), mean power (MP), peak velocity (PV), peak force (PF), mean force (MF), and peak rate of force development (RFD) measurements were obtained from a linear optical encoder attached to a 40 kg barbell. Results: A …

The Relationship Between Isometric And Dynamic Strength In College Football Players, Michael R. Mcguigan, Jason Winchester

Research outputs pre 2011

Previous research has demonstrated the importance of both dynamic and isometric maximal strength and rate of force development (RFD) in athletic populations. The purpose of this study was to examine the relationships between measures of isometric force (PF), RFD, jump performance and strength in collegiate football athletes. The subjects in this study were twenty-two men [(mean ± SD):age 18.4 ± 0.7 years; height 1.88 ± 0.07 m; mass 107.6 ± 22.9 kg] who were Division I college football players. They were tested for PF using the isometric mid thigh pull exercise. Explosive strength was measured as RFD from the isometric …

A Case Study Of Muscular Strength, Endurance, And Power Responses To A 6-Week High Intensity Training Program, John Amtmann, Edd, Kelly Amtmann, Msn, Rn, Jake Kukay, William K. Spath

Applied Health Sciences

We evaluated the muscular strength, endurance, and power responses of 12 college students, ranging in age from 19-40 years, who participated in a 6-wk high-intensity training program commonly used to improve muscular endurance. Muscular strength was measured by a one repetition maximum (1RM) bench press test and a 1RM Hammer bench press test; muscular endurance was measured by administering a 70-percent 1RM test to failure on the Hammer bench press; and upper body power was measured by adminstering a medicine ball throw test. We observed a 4.8-percent improvement of 2.7 kg on the bench press, a 14.6-percent improvement of 10.5 …

A Series Of Studies On Professional Rugby League Players, Daniel G. Baker

Theses: Doctorates and Masters

Rugby league football is a popular game in Australia, which appears to rely heavily upon strength, power, speed and endurance due to the nature of the phyiscal contacts. In an effort to discern the importance of upper body strength, power speed and endurance to rugby league players a retrospective data analysis was performed. Three areas of investigation were: 1) the testing of upper body physical qualities of strength, power, speed and strength-endurance and their significance to playing status in the elite national first-division (NRL), second-division (SRL) and third-division (CRL), 2) the effect of acute training variable manipulations upon power output …