Kinesiology Commons^™

Physical Activity Informational Websites: Accuracy, Language Ease, And Fear Appeal, Samantha Rose Paige

Open Access Theses

Introduction. Health information is one of the most common searches on the Internet. Literature supports that, in general, health information readily available to Internet consumers is not accurate, lacks plain language for ease of understanding, and does not incorporate behavior-change theoretical frameworks. The purpose of this study was to evaluate each of these components. Method. Three keywords, "physical activity," "exercise," and "fitness," were entered into four popular search engines: Google, Bing, and Yahoo. The first 5 result pages were considered, totaling a sample of 493 websites. After exclusionary criteria, 102 websites were reviewed and analyzed with guidance from ACSM recommendations, …

The Perceived Demands Of Crossfit, Bryanne N. Bellovary

All NMU Master's Theses

Rhabdomyolysis is the breakdown of muscle tissue causing myoglobin, creatine kinase, and other intracellular proteins and electrolytes to leak into circulation, disrupting cell homeostasis. Exertional rhabdomyolysis (ER) occurs after extremely rigorous physical training that could include high amounts of strenuous eccentric exercise. There has been an increase in reports for mild to severe ER as well as other musculoskeletal injuries as the popularity of extreme conditioning programs (e.g., CrossFit®) increases. Therefore, the main purposes of this investigation were to identify: primary risk factors associated with ER during CrossFit®, CrossFit® workouts that might induce a higher risk for the development of …

Muscle Synergies During A Single-Leg Drop-Landing In Boys And Girls, Kristof Kipp, Ronald Pfeiffer, Michelle Sabick, Chad Harris, Jeanie Sutter, Seth Kuhlman, Kevin Shea

Kinesiology Faculty Publications and Presentations

The purpose of this study was to investigate muscle activation patterns during a landing task in boys and girls through the use of muscle synergies. Electromyographical (EMG) data from six lower extremity muscles were collected from 11 boys and 16 girls while they performed single-leg drop-landings. EMG data from six leg muscles were rectified, smoothed, and normalized to maximum dynamic muscle activity during landing. Data from 100 ms before to 100 ms after touchdown were submitted to factor analyses to extract muscle synergies along with the associated activation and weighing coefficients. Boys and girls both used three muscle synergies. The …

Toe Running: The Good, The Fad, And The Ugly, Molly Quinn-Shea

WWU Honors College Senior Projects

Compared to most other animal on the planet, humans are pathetic runners. We are not graceful like the deer nor fast like the cheetah. In fact, many have wondered why the homo sapien evolved into an upright figure since that posture is less efficient for running. Christopher McDougall, in his National Bestseller Born to Run, hypothesized that early humans were distance runners that outran their prey. Born to Run, which has been linked to the rise of the popularity of barefoot running, describes how humans do not use their Achilles tendon efficiently by striking with the heel of …

Norms For An Isometric Muscle Endurance Test, Sarah L. Strand, John Hjelm, Todd C. Shoepe, Marie A. Fajardo

Health and Human Sciences Faculty Works

Musculoskeletal performance assessment is critical in the analysis of physical training programs in order to prioritize goals for decreasing injury risk and focusing performance goals. Abdominal endurance as part of this analysis is often assessed with techniques that have validity that has been debated in literature. The purpose of this study was to develop normative sex- and athlete-specific percentiles for a trunk stabilization and muscular endurance by using a prone forearm plank test in college-aged students. A second purpose of this study was to investigate the effect of habitual physical activity and the reason for test termination. There were 471 …

Physiological Responses To A 60-Minute Zumba® Class In College Age Females, Jill Best Sampson, Rebecca Rogers, Kyle Biggerstaff, Dyanna Bullinger, David Nichols, Vic Ben Ezra

International Journal of Exercise Science: Conference Proceedings

Zumba® is a group exercise format that incorporates aerobic dance components and claims to be an appropriate physical activity to be included in an exercise prescription for improving cardiorespiratory fitness. The purpose of this study was to determine the energy expenditure and physiological effects of a 58.6 min Zumba® class and compare the average METs of the Zumba® class to the ACSM’s definition of vigorous activity of 6 METs. All participants (n=30) were volunteers from Zumba® classes at Texas Woman’s University. Participants attended three Zumba® classes to become familiar with the choreography. The Zumba® session where data was collected was …

Amputation Effects On The Underlying Complexity Within Transtibial Amputee Ankle Motion, Shane R. Wurdeman, Sara A. Myers, Nikolaos Stergiou

Journal Articles

The presence of chaos in walking is considered to provide a stable, yet adaptable means for locomotion. This study examined whether lower limb amputation and subsequent prosthetic rehabilitation resulted in a loss of complexity in amputee gait. Twenty-eight individuals with transtibial amputation participated in a 6 week, randomized cross-over design study in which they underwent a 3 week adaptation period to two separate prostheses. One prosthesis was deemed “more appropriate” and the other “less appropriate” based on matching/mismatching activity levels of the person and the prosthesis. Subjects performed a treadmill walking trial at self-selected walking speed at multiple points of …

Perceptions And Practices Of Hydration In Triathlon, Corey Stephen O'Connor

Theses and Dissertations

Perceptions and Practices of Hydration in Triathlon

Corey S. O'Connor, David Q. Thomas, Kelly R. Laurson, Dale D. Brown. Illinois State University, Normal, IL

Purpose: To examine where triathletes obtain information regarding hydration, if their performances have been affected by dehydration, and how they monitor their hydration status. Methods: Two hundred and two participants (age=38.70 ± 9.73 years) from various triathlon groups in Illinois participated in the study. Each participant was asked to complete an electronic survey. The survey was composed of twenty seven items and was developed by O'Neal (2011). The survey was modified for triathletes and seven questions …

Effects Of Graston Technique On Blood Flow In The Upper Extremity, Ashley Nicole Keck

Theses and Dissertations

Context: When musculature around the shoulder is tight, alterations in scapular positioning may result, thus compressing the blood vessels to the upper extremity and decreasing blood flow. Graston Technique (GT) mobilizes the soft tissues to break up adhesions in fascia and lengthens tight musculature. The effect of GT has on blood flow after treatment to the shoulder musculature is unknown. Objective: To determine if GT has an effect on blood flow and pectorals minor length after a single treatment session. Design: Controlled laboratory study with randomization. Setting: University athletic training laboratory. Patients or Other Participants: Sixty healthy subjects (27 male, …

Persistent Fluctuations In Stride Intervals Under Fractal Auditory Stimulation, Vivien Marmelat, Kjerstin Torre, Peter J. Beek, Andreas Daffertshofer

Journal Articles

Stride sequences of healthy gait are characterized by persistent long-range correlations, which become anti-persistent in the presence of an isochronous metronome. The latter phenomenon is of particular interest because auditory cueing is generally considered to reduce stride variability and may hence be beneficial for stabilizing gait. Complex systems tend to match their correlation structure when synchronizing. In gait training, can one capitalize on this tendency by using a fractal metronome rather than an isochronous one? We examined whether auditory cues with fractal variations in inter-beat intervals yield similar fractal inter-stride interval variability as isochronous auditory cueing in two complementary experiments. …

A Comparison Of Functional Manual Reaction To Passive Joint Mobilization On Dorsiflexion And Star Excursion Reach Distance, Timothy Frederic Boerger

Theses and Dissertations

Context: Joint mobilizations (JM) and functional manual reaction (FMR) are techniques commonly utilized in rehabilitation to promote restoration of ankle dorsiflexion (DF). Additionally, it is possible that JM have an effect upon postural control. Purpose: The purpose of this study was to investigate the comparative immediate effects of JM and FMR on DF and Star Excursion Balance (SEBT) reach distance in healthy subjects. Design: Randomized controlled trial. Setting: A university laboratory. Patients or other participants: We included 43 college aged subjects for our investigation (20M, 23F). Main outcome variables: Our variables were straight knee DF, bent knee DF, anterior SEBT, …

Comparison Of Body Composition Techniques In Determining Body Fat Percentages In College Age Students, Jillian Louise Barnas

Theses and Dissertations

While the use of body composition analyzers can become a critical tool in breaking the continual weight loss/weight gain cycle in Americans, the accuracy of these analyzers at measuring body composition remains in question. PURPOSE: The purpose of this study was to determine the effectiveness of various body composition techniques at determining body fat percentages (%BF). METHODS: Sixty males (mean ± SD) [age: 21.3 ± 1.7 yr., height: 178.1 ± 7.2 cm., mass: 81.9 ± 12.6 kg., body fat %: 14.6 ± 7.5 %] and thirty-nine females [age: 20.5 ± 0.9 yr., height: 166.0 ± 7.7 cm., mass: 63.5 ± …

Defining The "Dose" Of Altitude Training: How High To Live For Optimal Sea Level Performance Enhancement, Robert F. Chapman, Trine Karlsen, Geir K. Resaland, R. L. Ge, Matthew P. Harber, Sarah Witkowski, James Stray-Gundersen, Benjamin D. Levine

Exercise and Sport Studies: Faculty Publications

Defining the "dose" of altitude training: how high to live for optimal sea level performance enhancement. J Appl Physiol 116: 595-603, 2014. First published October 24, 2013; doi:10.1152/japplphysiol.00634.2013.-Chronic living at altitudes of 2,500 m causes consistent hematological acclimatization in most, but not all, groups of athletes; however, responses of erythropoietin (EPO) and red cell mass to a given altitude show substantial individual variability. We hypothesized that athletes living at higher altitudes would experience greater improvements in sea level performance, secondary to greater hematological acclimatization, compared with athletes living at lower altitudes. After 4 wk of group sea level training and …

Relationships Between Humeral Retroversion, Anterior Glenohumeral Laxity, And Forward Scapular Posture In Collegiate Baseball Players, Yuya Mukaihara

Theses and Dissertations

Context: Baseball players are prone to soft tissue and bony adaptations due to repetitive throwing. Humeral retroversion, anterior shoulder laxity, and forward scapular posture are three common adaptations that have been associated with posterior shoulder tightness. Objective: To investigate if relationships exist between humeral retroversion, anterior shoulder laxity, and forward scapular posture among collegiate baseball players. Design: A cross–sectional correlation study. Setting: Athletic training facility at universities. Participants: Forty–eight asymptomatic NCAA Division-I baseball players (age 20.2 ± 1.2, weight 90.39 ± 8.92 kg, height 185.63 ± 6.69 cm). Interventions: Humeral retroversion and anterior shoulder laxity from dominant shoulders and bilateral …

The Influence Of Body Mass On Calculation Of Power During Lower-Body Resistance Exercises, Prue Cormie, J.M Mcbride, G.O. Mccaulley

Prue Cormie

No abstract provided.

Validation Of Power Measurement Techniques In Dynamic Lower Body Resistance Exercises, Prue Cormie, J.M Mcbride, G.O Mccaulley

Prue Cormie

No abstract provided.

Power-Time, Force-Time, And Velocity-Time Curve Analysis Of The Countermovement Jump: Impact Of Training, Prue Cormie, Jeffrey Mcbride, Grant Mccaulley

Prue Cormie

No abstract provided.

Power In Resistance Exercise, James Nuzzo, Prue Cormie, Jeffrey Mcbride

Prue Cormie

No abstract provided.

The Influence Of Body Mass On Calculation Of Power During Lower Body Resistance Exercises, Prue Cormie, Jm Mcbride, Go Mccaulley

Prue Cormie

No abstract provided.

Muscle Deoxygenation During Repeated Sprint Running: Effect Of Active Vs. Passive Recovery , M Buchheit, Prue Cormie, Christopher Abbiss, S Ahmaidi, Kazunori (Ken) Nosaka, Paul Laursen

Prue Cormie

No abstract provided.