Medical Education Commons^™

Fatigue Induced Changes In Dynamic Balance In Trained Ballet Dancers, C. Enright, N. Addison, M. Wortley, E. Bonczek

International Journal of Exercise Science: Conference Proceedings

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How Does Sleep Affect Body Mass Index In College Students?, L. Dell'arciprete, S. Ollinger, J. Moxley, A. Barton, T. Blackshear

International Journal of Exercise Science: Conference Proceedings

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Inter- And Intra-Rater Reliability Of B-Mode Ultrasound To Assess Body Fat Percentage, A. Chandler, S. Dona, K. Monaco, R. Monaco, S. Arent

International Journal of Exercise Science: Conference Proceedings

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Recovery Impact On Muscular Measures Of Female Soccer Players, S. Bray, M. Varner, D. King, M. Richman, J. Sanders

International Journal of Exercise Science: Conference Proceedings

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Association Between Objectively Measured Body Fat Percentage And Two Indirect Measures Of Adiposity, C. Bopp, O. Wilson, Z. Papalia, M. Bopp

International Journal of Exercise Science: Conference Proceedings

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Multi-Ingredient Pre-Workout Supplement Improves Cycling Anaerobic Power In Recreationally Active Men, M. Beckner, B. Martin, A. Pihoker, M. Darnell, A. Kjellesen, P. Arciero, M. Lovalekar, K. Beals, S. Flanagan, B. Nindl

International Journal of Exercise Science: Conference Proceedings

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Effects Of Environmental Temperature On Physiologic Measures And Reaction Time During Graded Leg Ergometry, D. Beaver, D. Grove, A. Mooney, M. Lawrence, L. Sheehan, J. Sanders, S. Paulson, W. Braun

International Journal of Exercise Science: Conference Proceedings

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Validity Of Fitness Watches For Cadence Measurement In Collegiate Runners, A. Ardino, D. Stapleton

International Journal of Exercise Science: Conference Proceedings

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Comprehensive Physical Activity Assessment Of U.S. Army Initial Entry Training Using A Three-Tier Model, J. Alemany, J. Pierce, T. Grier, B. Jones, S. Glover

International Journal of Exercise Science: Conference Proceedings

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The Efficacy Of Wristband Activity Trackers During Vigorous Exercise, Jessica Mcdowell, Alexandrea Swize, Jenna Gerber, Reilly Avalos, Kyle Reinen, Shelly Weise

International Journal of Exercise Science: Conference Proceedings

Patients and clinicians rely on activity trackers to monitor heart rate, calorie expenditure, and steps during training and interventions. However, the efficacy of activity trackers during vigorous exercise, is not widely studied. PURPOSE: The objective of this study was to compare the effectiveness of activity trackers during vigorous activity. METHODS: Nineteen participants completed twenty minutes of vigorous intensity exercise by running or incline walking on a treadmill. Measurement devices worn during the testing period included two wristband activity trackers (Garmin (G) Forerunner 735xt™ and Fitbit (F) Surge™) and industry standard devices: a pedometer(P), Polar™ HR Chest Strap and …

Can Smart Phone Pedometer Applications Accurately Estimate Caloric Expenditure During Exercise?, Rebecca Sipes, Hollyann Wells, Libby Mccurley, Joe D. Bell

International Journal of Exercise Science: Conference Proceedings

Mobile devices are increasingly being used to track various fitness and activity parameters via free applications (apps). Numerous pedometer apps are available that in addition to tracking steps, also provide an estimation of calories expended. The accuracy of these apps in their estimation of caloric expenditure during activity is not well documented. PURPOSE: The aim of this study was to investigate the accuracy of the Stepz® free pedometer app in estimating kcal burned while walking on a treadmill by comparing this method to the validated method of indirect calorimetry. METHODS: Twenty-four students with mean age 20.5 ±1.4 years …

A Comparison Of Functional Movement Between Crossfit Trained, Recreationally Trained And Sedentary Individuals, Kelsey Ede, Laurel Hill, Shelby Moreno, Natalia Traverzo, Shelly D. Weise, Teresa Huckaby

International Journal of Exercise Science: Conference Proceedings

CrossFit is a prevalent style of exercise training. The exercise style focuses on performance of aerobic and strengthening exercises which incorporate multi-joint, functional movements. These variables combine to enhance athletic performance and improve an individual's ability to perform daily functional movement patterns. A limited amount of research has compared CrossFit with other training groups regarding aerobic capacity, muscular strength and body composition. An even smaller percentage of research has compared functional movement variables. PURPOSE: Current research supports that CrossFit athletes demonstrate high symmetry of functional movement patterns. The primary aim of this study was to determine if CrossFit training …

Intra-Day Variation In Lean Body Mass And Skeletal Muscle Mass Measures: A Pilot Study, Noe Deanda, Jordan B. Wainwright, Jeb F. Struder, Daniel Newmire

International Journal of Exercise Science: Conference Proceedings

Lean body mass (LBM) and its estimated measure of skeletal muscle mass (SKMM) is ~30 to ~40 % of total body weight. Measuring SKMM is an important assessment for both exercise and nutritional research. There is biological variation in dual X-ray absorptiometry (DXA) estimates related to subject presentation, changes in tissue hydration, as well as GI tract contents. PURPOSE: The purpose of this study is to examine how normal activities (e.g. eating, sleeping, exercise) influence LBM and SKMM measures using DXA in college students. METHODS: (Mean ± SEM; n = 42; Age: 26.9 ± 0.4 y; ht: 169.2 …

The Impact Of Kinetic Energy Factors On Pitching Performance Of Ncaa Baseball Players, Blake George, Andrew A. Wolfe, Joe W. Priest, Randy Martin, Matt Laurent, Kayla Peak

International Journal of Exercise Science: Conference Proceedings

Kinetic energy is established by a mathematical equation involving the mass of an object and the speed at which the object travels, and is a relevant measure in regards to athletic performance due to frequent transfer of energy during sport (i.e. athlete to athlete (tackling), athlete to object (throwing), object to object (tennis/baseball hitting)). Previous research has utilized the 60-yd run-shuttle to examine kinetic energy factors (k-factor) of difference sports, recognizing significant differences in energy capability between gender, sport teams, and individual sport positions. The utilization of k-factor, pertaining to baseball, has distinguished significant positional (i.e. infielder, outfielder, catcher, pitcher) …

Validity Of Body Volume Estimates From Infrared 3-Dimensional Scanning And Dual-Energy X-Ray Absorptiometry As Compared To Air Displacement Plethysmography, Marqui Benavides, Michael Moore, Jacob Dellinger, Claire Underwood, Tyler Dierolf, Brian Adamson, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Traditional methods of estimating body volume (BV) such as hydrostatic weighing and air-displacement plethysmography (ADP) could theoretically be replaced using BV estimates obtained by dual-energy x-ray absorptiometry (DXA) or infrared 3-dimensional (3D) scanning devices. Multiple 3D scanning technologies have recently become popularized, including scanners that acquire data through pattern deformations caused by the projected light over the 3D object (i.e., structured light [SL] scanners) or by calculating depth from the time it takes reflected photons to reach the scanner’s image sensor (i.e. time of flight [ToF] scanners). While these 3D scanning technologies currently predict body composition based primarily on circumference …

Comparisons Of Portable Metabolic Sensors During Outdoor Cycling, Darrel Woods, Katherine Costello, Alexander Toulouse, Patrick R. Davis

International Journal of Exercise Science: Conference Proceedings

Wearable technology has increased in prevalence and in the ability to monitor health related data. Additionally, the ability to record training data through various sensors has become essential in developing highly personalized training programs. Metabolic measurements have typically been confined to laboratory settings, but portable metabolic carts make the collection of these metrics in real world conditions possible. PURPOSE: The purpose of this study was to compare measurements of VO₂ from two different portable metabolic carts, a new consumer focused cart (A) and a research grade cart (B), in outdoor cycling under steady state conditions. METHODS: A …

Bilateral Lean Mass And Dynamic Balance Asymmetry In Collegiate Athletes, Guadalupe Gabriela Herrera, Vipa Bernhardt

International Journal of Exercise Science: Conference Proceedings

Laterality, or lateral dominance may lead to asymmetry in muscle mass and strength, which in turn could lead to differences in stability and balance. Muscular asymmetry and dynamic balance asymmetry have been independently linked with increased injury risk. For example, athletes with >4cm anterior reach distance differences (ΔARD) were found to be at significantly higher risk to incur injuries. PURPOSE: However, it is unknown if there is an association between muscle mass asymmetry and dynamic balance. Nor is it known if these factors change throughout the sports’ seasonal periods (i.e., off-, pre-, and post-season). The purpose of this preliminary …

Scores For The Modified Functional Movement Screen In Active Older Adults, Martin S. Dietze-Hermosa, Samuel Montalvo, Lance Gruber, Lizette Terrazas, Matthew Gonzalez, Sandor Dorgo

International Journal of Exercise Science: Conference Proceedings

The modified Functional Movement Screen^TM (mFMS), an adapted form of the traditional FMS for older adults, consists of a battery of tests aiming at identifying areas of movement deficiency. Prompt identification of movement deficiency can help exercise practitioners create a tailored program to improve these limitations. PURPOSE: To establish normative values for the mFMS in healthy active older adults. METHODS: There were 141 individuals (56 males and 85 females; mean age ± SD: age 69.51 ± 7.41 years) who participated in the study. Participants performed an 8-10 minute warm-up at a self-selected pace on a treadmill …

Changes In Health And Physical Fitness Parameters After 6 Months Of High-Intensity Group Exercise In Firefighters: Preliminary Data, Matthew L. Sokoloski, Ryan A. Gordon, Gena D. Guerin, Isaac F. Rowland, Emily L. Zumbro, C Ryan Bachik, B Rhett Rigby

International Journal of Exercise Science: Conference Proceedings

The physical demands of firefighting require the men and women employed in this profession to be in optimal physical condition to perform their jobs proficiently, as well as to mitigate the risk of injury. Every year, the city of Addison, TX, budgets many thousands of dollars to the compensation plan for first responders. Most of the funding is used for rehabilitation services due to work related injuries. PURPOSE: While many of these injuries are unavoidable due to the inherent risks of the profession, ensuring proper physical fitness is one of the most effective methods to reduce many of these impairments. …

Validity Of Four-Compartment Model Body Fat Using Single- Or Multi-Frequency Bioelectrical Impedance Analysis To Estimate Body Water, M. Lane Moore, Marqui L. Benavides, Jacob R. Dellinger, Brian T. Adamson, Claire P. Underwood, Tyler C. Dierolf, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Most common body composition assessment techniques make assumptions about the body, including the density and hydration of fat-free mass (FFM). An advantage of the four-compartment (4C) model is the ability to take these FFM characteristics into account when assessing body composition, thus reducing potential error. The total body water (TBW) estimate utilized in 4C models is particularly important due to the large contribution of water to an adult human’s total body mass (~40 - 70%) and FFM (~68 - 81%); however, the impact of utilizing different estimates of TBW within 4C model has not been fully explored. PURPOSE: The …

Comparison Of Regional Body Composition Estimates Obtained From Dual-Energy X-Ray Absorptiometry And Single-Frequency Bioelectrical Impedance Analysis, Jacob Dellinger, M. Lane Moore, Marqui L. Benavides, Tyler C. Dierolf, Brian T. Adamson, Claire P. Underwood, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

The anatomical distribution of fat mass (FM) and lean mass (LM) is significant for health and athletic performance. Dual-energy x-ray absorptiometry (DXA) is often used for regional body composition analysis but is not portable, often inaccessible, and costly, while single-frequency bioelectrical impedance analysis (SFBIA) is a more affordable and accessible alternative. PURPOSE: The purpose of this analysis was to compare regional body composition estimates obtained via DXA and SFBIA. METHODS: After an overnight food and fluid fast, 102 adults (64 F, 38 M; age: 29.2 ± 13.4 y; BMI: 24.3 ± 3.9 kg/m²; BF%: 24.6 ± …

Validity Of Infrared 3-Dimensional Scanning For Estimation Of Body Composition: A 4-Compartment Model Comparison, Brian T. Adamson, Jacob R. Dellinger, Marqui L. Benavides, M. Lane Moore, Claire P. Underwood, Tyler C. Dierolf, Grant M. Tinsley

International Journal of Exercise Science: Conference Proceedings

Multiple infrared 3-dimensional (3D) scanning technologies exist, including time of flight (ToF) scanners and structured light scanners with static (SL-S) and dynamic (SL-D) configurations. ToF scanners measure depth by using the round-trip time of reflected photons, whereas SL scanners measure deformations in light patterns and allow for creation of a depth image using geometric triangulation. Recently, 3D scanning technologies have been proposed as novel methods of body composition assessment. PURPOSE: The purpose of this analysis was to examine the validity of four different commercially-available 3D scanners for estimation of body fat percentage (BF%) as compared to a 4-compartment (4C) …

The Effect Of Varying High-Intensity Interval Training Style Warm-Ups On Hemodynamic, Power, And Flexibility Responses, Nelson Wise, Orlando Cepeda, Klarissa Ybarra, Brenda Palma, Brianna Lopez, Manuel Nunez, Ezra Meza, Alexandria Hinojosa, Amanda Hankins, Murat Karabulut

International Journal of Exercise Science: Conference Proceedings

PURPOSE: The purpose of this study was to examine the effectiveness of high-intensity interval training (HIIT) style warm-up on hemodynamic, power, and flexibility responses. METHODS: Twelve male subjects (age: 24.15 ± 3.1 yr. & weight: 78.78 ± 16.83 kg) completed the study. On the first day, initial screening, anthropometric measures, and familiarization with testing procedures were completed. There were a total of 6 randomized testing sessions (separated by at least 48 hours.). The testing sessions were as follows: 3-min warm-up session with 20 sec work followed by 10 sec (C1), 3-min warm-up session with 30 sec work followed …

Validity Of Vertical Jump Measuring Devices, Samuel Montalvo, Sandor Dorgo, Colton Tune, Cassie Sapien, Matthew Gonzalez, Jose Sanchez

International Journal of Exercise Science: Conference Proceedings

The vertical jump has been used to assess athleticism in explosive sports. Field measuring methods have been recently introduced to the market. Some of these devices have been previously validated, however, they have not been validated by an independent research institute nor have been concurrently validated in the same training session. PURPOSE: This research intends to conduct an independent validation of alternative vertical jump devices and to validate multiple devices within the same training session. METHODS: 50 physically active University students were recruited for this study. The subjects performed a self-paced 5 minute jog on a treadmill as …

Effects Of An Acute Strength And Conditioning Bout On Dual Energy X-Ray Absorptiometry Results, Jason R. Lytle

International Journal of Exercise Science: Conference Proceedings

Dual Energy X-ray Absorptiometry (DXA) scans to assess body composition have become increasingly popular, especially in athletic populations. Acute factors, such as hydration status and food intake have been shown to alter DXA results (Tinsley, MSSE 2016). It is currently not known if prior strength and conditioning bouts may alter fat mass, lean mass, and bone density results. PURPOSE: To determine if a strength and conditioning (S&C) bout, similar to what athletes regularly engage in, will alter the fat mass, lean mass, and bone content results of a DXA scan. METHODS: Fourteen strength-trained subjects (10 men, 4 women, age 24 …

Effects Of Twenty Sessions Core Stability Exercise On Functional Movement And Balance, Joungbo Ko, Jongil Lim, Jiyeon Kim, Sukho Lee

International Journal of Exercise Science: Conference Proceedings

People often experience lower limb injury due to sport activities or falls in their daily life. Core stability exercise may contribute to prevent or minimize the chronic discomfort in skeletal muscle. PURPOSE: The purpose of this study is to investigate the effect of core stability exercise for subjects who have mild discomfort of the lower limb. METHODS: Participants (N=20, 32.3±8.6 yrs, male and female) were randomly divided in two different groups: 10 in the control group and 10 in the exercise group performing core stability exercise program. The core stability exercise consisted of ten main exercises including modified mat pilates …

Actual Versus Predicted Vo2max: A Comparison Of 4 Different Methods, David J. Buckley, James R. Rowe Jr

International Journal of Exercise Science: Conference Proceedings

ABSTRACT

Measuring expired gases (EGs) while performing a maximal (max) effort exercise test is considered the most accurate evaluation of VO₂ max. This methodology is not applicable for all populations. Submaximal (sub-max) protocols not measuring expired gases are more applicable, however their ability to accurately predict VO₂max is not clear. PURPOSE: To compare VO₂max results from 1) University of Houston Non-Exercise Test (UHNET), 2) McArdle Step Test (MST), 3) Bruce Protocol measuring EGs to max (Bruce-EGs), and 4) Bruce Protocol using time to max (Bruce-TM). METHODS: Recreationally active men and women {n= 24 (16M/8W); age …

Ability Of The Functional Movement Screen (Fms) To Predict Injury In Ncaa Division Ii Track And Field Athletes And The Association Between The Fms, Eccentric Hip Abduction Strength, And Injury Risk, Shane Purser, Collin Brown, Teresa Huckaby, Shelly Weise

International Journal of Exercise Science: Conference Proceedings

A high injury rate is present in the collegiate cross country and track population. Currently no gold standard measurement exists to predict future injury. The FMS and eccentric hip strength are two potential measures to predict future injury risk. PURPOSE: To establish if the 100 point FMS and 21 point FMS scores are correlated with injury risk among NCAA Division II cross country and track and field athletes, as well as determine if hip strength is associated with injury risk or FMS score. METHODS: This investigation was an exploratory prospective cohort study of eight Division II cross country …

Validity Of Cardiorespiratory Fitness Assessment In Adolescents Using The Non-Exercise Test, Pacer, And The K4b2 Portable Metabolic System, Pedro Migliano, Megan James, Allison Hall, Amy Fruge, Anna Flipse

International Journal of Exercise Science: Conference Proceedings

Cardiorespiratory fitness (CRF) is an important indicator of adolescent cardiovascular and future cardiometabolic health. The PACER test is often used to measure CRF in adolescents but is not feasible with pediatric populations unable to perform physical testing secondary to physical impairments. The non-exercise test (NET) has been recommended as a proxy for estimating VO₂ in individuals not able to perform physical tests by using variables such as gender, age, body mass index, resting HR, and self-reported habitual physical activity levels. PURPOSE: The purpose of this study was estimate the concurrent validity of the NET for adolescents against the PACER …

Comparison Of Lung Volumes And Estimated Vo2max In College-Aged Wind Musicians Versus Aerobic Athletes, M. Petro, B. Larouere, T. Disanti, J. Bracken

International Journal of Exercise Science: Conference Proceedings

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