Exercise Physiology Commons^™

Motivational Profiles And Their Associations With Achievement Outcomes, Bo Shen, Nate Mccaughtry, Jeffrey J. Martin, Mariane Fahlman

Kinesiology, Health and Sport Studies

With the belief that theoretical integration in motivation may help us better understand motivational behavior, we designed this study to explore adolescents’ motivational profiles and their associations with knowledge acquisition, leisure-time exercise behaviors, and cardiorespiratory fitness. Middle school students from a large urban inner-city school district (N = 603, ages 12–14) completed questionnaires assessing motivational constructs and leisure-time exercise behavior. Knowledge and cardiorespiratory fitness were also assessed with a knowledge test and the Progressive Aerobic Cardiovascular Endurance Run (PACER) test, respectively. Using hierarchical cluster analysis, we found that students’ motivation in physical education could be explained from a multi-theoretical …

Comparison Of The Power Plate And Free Weight Exercises On Upper Body Muscle Endurance In Young Athletes, Elisabeth Boland*, Dan Boland*, Thomas Carroll‡, William R. Barfield‡

International Journal of Exercise Science

The power plate (PP) is designed to reduce training time while providing a muscle stimulus that leads to positive changes in muscle mass. This study investigated the effect that training on the PP has compared to a free-weight (FW) program, on upper body endurance, defined as the number of push-ups completed at one time prior to failure. Following IRB approval a pre-test was used to assess push-up endurance in PP and FW cohorts. Each group exercised for six consecutive weeks, working out three times per week, on non-consecutive days performing five exercises of two sets of 8-12 repetitions. Twenty-two females …

Predictors Of Adl Disability In Culturally Diverse Older Adults, Fernanda Winchester†, Rebecca Ellis‡, Maria Kosma‡, Katie E. Cherry‡, Priscilla D. Allen‡, Pamela A. Monroe‡, Robert H. Wood‡

International Journal of Exercise Science

The purpose of this study was to utilize the disablement pathway model to examine the contribution of physical function, dyspnea, and pain to disability in activities-of-daily-living (ADL) in culturally diverse older adults. Participants were 51 older adults (age = 69.0 years ± 9.7; 76.5% African-American, 51.0% < high school education, 52.9% < $20,000 annual income) from an urban community center and an independent living housing facility for seniors. Participants completed the Functional Status Index (FSI), which provides ratings of need for assistance (FSIA) and pain (FSIP) with ADL, the Continuous Scale Physical Functional Performance 10-item Test (CS-PFP10), and an analog dyspnea scale. Hierarchical multiple regression analyses revealed that facility, physical function, pain, and dyspnea accounted for 50.5% of the variance in disability and that pain (β = .43, p < .01) and physical function (β = -.39, p < .01) were the only significant predictors. In the second model, facility, dyspnea, and pain explained 27.6% of the variance in physical function, and facility (β = .39, p < .01) and dyspnea (β = -.26, p = .05) were the only significant predictors. Based on the disablement pathway model, physical functional improvement and pain prevention and management should be targeted when designing culturally appropriate strategies for delaying disability and maintaining independent life.

Consequences Of Weight Cycling: An Increase In Disease Risk?, Kelley Strohacker†, Katie C. Carpenter†, Brian K. Mcfarlin‡

International Journal of Exercise Science

Research indicates that weight cycling, or “yo-yo dieting” is a common occurrence in obese populations. The long term negative health consequences of weight cycling are debated and it is unclear whether or not this weight change pattern poses a greater disease risk compared to obesity maintenance. This review discusses the prevalence of weight cycling and physiological alterations occurring during weight loss that promotes weight regain. We also discuss the effect weight regain has upon adipose tissue in terms of rate and type of accumulation. Also within this review are discussions surrounding the previously published literature based upon human and rodent …

The Effects Of Tempur Insoles On Ground Reaction Forces And Loading Rates In Running, Crystal Ruano*, Douglas Powell‡, Elizabeth T. Chalambaga*, Doug Renshaw*

International Journal of Exercise Science

Runners often experience over-use injuries. Ground reaction force (GRFs) patterns have been associated with these over-use injuries; however, it is not solely the magnitude of GRFs, but also the rate at which they are applied that lead to lower extremity injury. Many recreational runners will use over-the-counter insoles as a method of treating or preventing injury. Therefore, the purpose of this study was to examine the efficacy of two insoles on peak GRFs and loading rates. It was hypothesized that no differences in peak GRFs or loading rates would exist with the addition of two insoles during running. Twelve subjects …

Physical Activity Is Associated With Percent Body Fat And Body Composition But Not Bmi In White And Black College Students, Michael Zanovec†, Anantha P. Lakkakula†, Lisa G. Johnson‡, Georgianna Tuuri‡

International Journal of Exercise Science

The objective of this study was to examine the association of self-reported physical activity (PA) with body composition in 290 college students (49% male, 60% White) 18-25 years of age. Outcome measures included: self-reported PA levels calculated in MET-hrs·wk-1 from the International Physical Activity Questionnaire (IPAQ); body mass index (BMI; in kg·m-2); and body composition variables estimated by dual-energy X-ray absorptiometry (DXA). Mean activity levels of the sample were 39.8 ± 23.8 MET-hrs·wk-1. Participants were divided into quartiles of PA levels: ≥0 to <24.0, ≥24.0 to <34.0, ≥34.0 to <51.25, and ≥51.25 MET-hrs·wk-1 and body composition variables were compared by group. Chi-square analyses revealed a significant difference for gender by PA quartile [χ2 (3, N=290) = 32.42, p < 0.0001], and for gender by race by PA quartile [χ2 (9, N=290) = 37.82, p < 0.0001]. MET-hrs·wk-1 was inversely correlated with %BF (r = -0.40, p < 0.0001) but not BMI (r = 0.05, p = 0.43). When comparing body composition variables across PA quartiles, no significant differences were observed for BMI; however, subjects in the highest quartile of PA had a lower percent body fat (%BF) and fat mass (FM), and a higher lean-tissue mass (LTM) compared to subjects in the other three groups. In this cohort of young adults, participants in the highest activity group had a more fit body composition profile (e.g., lower %BF, lower FM, and higher LTM) which was not reflected in BMI and was independent of gender and race.

Active Video/Arcade Games (Exergaming) And Energy Expenditure In College Students., Shannon R. Siegel‡, Bryan L. Haddock‡, Andrea M. Dubois*, Linda D. Wilkin‡

International Journal of Exercise Science

Video games have become increasingly popular among young adults. The purpose of this pilot study was to determine if interactive video/arcade games, requiring physical activity to play, increase the energy expenditure (EE) and heart rate (HR) of young adults enough to elicit a training response. Thirteen male and female participants 26.6 ± 5.7 years of age were in the study. Participants were familiarized with equipment and allowed to practice with three games: (1) moving and striking lighted pads, (2) riding a bike to increase the pace of a race car, and (3) boxing against a video simulated opponent. A portable …

Academic And Research Programs In Exercise Science, South Korea, Kyung-Shin Park, Wook Song

International Journal of Exercise Science

We appreciate the opportunity to review academic curriculum and current research focus of Exercise Science programs in South Korea. The information of this paper was collected by several different methods, including e-mail and phone interviews, and a discussion with Korean professors who attended the 2009 ACSM annual conference. It was agreed that exercise science programming in South Korea has improved over the last 60 years since being implemented. One of distinguishable achievement is that exercise science programs after the 1980’s has been expanded to several different directions. It does not only produce physical education teachers but also attributes more to …

Isometric Isokinetic And Isotonic Strength Evaluation Of Subjects With Stable And Unstable Ankles, Lauren Nicole Snyder

Human Movement Studies & Special Education Theses & Dissertations

Injuries to the lateral ankle ligaments can result in ankle instability problems. Limited data exists in relation to isokinetic and isometric strength measures of the ankle, with an absence of data in relation to isotonic power measures. Therefore, the purpose of this study is to identify if there is a difference between subjects with unstable ankles and subjects with stable ankles with respect to isokinetic ankle strength, isometric ankle strength, and isotonic ankle power. Eighteen subjects with ankle instability (age, 23.9 ± 2.81 years; height 170.4 ± 8.9 cm; mass 73 ± 18.9 kg) and eighteen subjects with healthy ankles …

Effects Of Estrogen On Muscle Damage In Response To An Acute Resistance Exercise Protocol, Megan R. Wolf

Honors Scholar Theses

Creatine Kinase (CK) is used as a measure of exercise-induced muscle membrane damage. During acute eccentric (muscle lengthening) exercise, muscle sarcolemma, sarcoplasmic reticulum, and Z-lines are damaged, thus causing muscle proteins and enzymes to leak into the interstitial fluid.

Strenuous eccentric exercise produces an elevation of oxygen free radicals, which further increases muscle damage. Muscle soreness and fatigue can be attributed to this membrane damage. Estradiol, however, may preserve membrane stability post-exercise (Brancaccio, Maffulli, & Limongelli, 2007; Carter, Dobridge, & Hackney, 2001; Tiidus, 2001). Because estradiol has a similar structure to Vitamin E, which is known to have antioxidant properties, …

An Examination Of Body Composition Measurement Methods In Children, Robert Kaplan

UNLV Theses, Dissertations, Professional Papers, and Capstones

Introduction . Body-composition methods include underwater weighing (UWW), skinfold thickness (SKF), bioelectrical impedance (BIA), and the BOD POD. Although these techniques are used routinely, each has its inherent limitations, especially in children. Purpose . The purpose of this study was to examine the various methods of body composition in children. Methods . The body composition of 7 boys between the ages of 12-14 (13.1 +/- 1.1 years) was determined using the BOD POD, UWW, SKF, and BIA. Results . Percent body fat estimated from the BOD POD (21.9 +/- 7.8%BF) was not significantly different than the estimated percent fat from …

Exercise Science Academic Programs And Research In Brazil, Roberto Simão, Jonato Prestes

International Journal of Exercise Science

The International Journal of Exercise Science has enjoyed an association with several students and professionals from Brazil. In this invited editorial, professors from leading institutions in Brazil, Roberto Simão from Rio de Janeiro Federal University, and Jonato Prestes from the Federal University of São Carlos, share information regarding their programs relating to Exercise Science. They have provided information on academic components such as entrance requirements, progression through programs, and professional opportunities available to students following completion; as well as details regarding funding available to students to participate in research, collaboration, and specific research interests.

Power Training: Can It Improve Functional Performance In Older Adults? A Systematic Review, John Rice†, Justin Keogh‡

International Journal of Exercise Science

Older adults’ reduced performance in functional activities of daily living (ADL) such as gait, sit to stand or stair climbing may reflect age-related declines in muscular power more so than strength. Therefore, this review was conducted to determine if power training is effective in improving the functional ability of older adults, and if so, if it was more effective than strength training. The review was performed using Medline (PubMed), CINAHL, Sports Discus, ProQuest 5000 International and Google Scholar with the keywords “power training”, “older adult” and “elder” and all derivatives. Of the 12 eligible studies identified, nine also included a …

Determination Of Systolic Blood Pressure Recovery Time After Exercise In Apparently Healthy, Normotensive, Non-Athletic Adults And The Effects Of Age, Gender, And Exercise Intensity, Uchechukwu Dimkpa†, Andrew C. Ugwu‡

International Journal of Exercise Science

The aim of this study was to determine in statistical terms, the systolic blood pressure recovery time (SBPRT) and the effects of age, gender and exercise intensity in a large sample of apparently healthy non-athletic adults (n=597, aged 18-68). Subjects performed mild, moderate, and severe ergometer exercise tests. Blood pressure was measured before exercise (after 10 and 15 minutes of rest), during exercise (at 2-minute intervals) and at every minute of post-exercise recovery until systolic blood pressure (SBP) returned to baseline. The present findings indicate that the average values of SBPRT were between 5 and 7 minutes regardless of age, …

Anthropometric And Physiological Predictors Of Flat-Water 1000 M Kayak Performance In Young Adolescents And The Effectiveness Of A High Volume Training Camp., Scott C. Forbes†, Daniel L. Fuller†, Joel R. Krentz†, Jonathon P. Little†, Phillip D. Chilibeck‡

International Journal of Exercise Science

Our purpose was to determine the relationship of anthropometric and physiological variables with 1000m flat-water kayak (K1000) performance. A secondary purpose was to determine the effectiveness of a high volume training camp. High performance young adolescent kayakers (n=13, 8 males, 5 females, 15±1 yrs) participated in this study. Testing before and after the 3-4 week training camp included anthropometric measurements (height, sitting height, arm span, and body mass), strength (1-RM: bench press and bench pull), flexibility (sit and reach), and an incremental kayak ergometer test to determine peak oxygen uptake (VO2peak) and anaerobic threshold, and an open water K1000 time …

The Influence Of An Environmental Cue And Exercise On Food Consumption In College Students, Samantha J. Hackbart †, James D. Lecheminant‡, John D. Smith‡, Curt L. Lox‡

International Journal of Exercise Science

The purpose of this study was to determine the effect of an environmental cue (bowl size) on food consumption and to examine the influence of exercise on that relationship. This cross-sectional study included 286 college students attending a large Midwestern University. Upon arrival at an ice cream social for university students, participants were randomly given a small (8 oz) or large (12 oz) bowl and a 4-page survey addressing exercise and eating habits. At the social, participants were invited to dish themselves as much ice cream as they wanted and the amount consumed was determined by weighing the bowl with …

Determination Of Blood Lactate Concentration: Reliability And Validity Of A Lactate Oxidase-Based Method, Rachel White*, Daniel Yaeger*, Stasinos Stavrianeas‡

International Journal of Exercise Science

The measurement of blood lactate has long been used as marker of exercise intensity and training status. We compared a commercially available lactate oxidase spectrophotometric method (LO) to determine blood lactate levels to two previously validated methods, the lactate dehydrogenase spectrophotometric method (LDH), and the YSI 1500L Sport lactate analyzer (YSI). First we established a series of calibration curves over physiological range of lactate values (1-15 mM∙l-1 for the spectrophotometric assays and 1-30 mM∙l-1 for the YSI) with high correlations (0.986 < r < 0.999). Aerobically trained participants (n = 11) performed repeated exercise bouts of varying intensities on a cycle ergometer. Capillary blood samples (n = 189) were collected from the earlobe and the blood lactate concentration was determined using each of the three methods. An ANOVA (alpha=0.05) revealed no differences in blood lactate concentrations between the three methods. The three experimental protocols yielded similarly-shaped lactate curves, although the actual values for the LDH method was somewhat lower than the LO and the YSI at every intensity level. Bland-Altman plots revealed a slight bias towards lower lactate values with the LDH method, perhaps indicative of a more conservative measure of blood lactate. We conclude that the LO method is a reliable and valid method to determine blood lactate concentrations spectrophotometrically. All three methods can provide useful within-subject lactate curves, although we caution against interchangeable use of the three methods.

Spatting Restricts Ankle Motion More Effectively Than Taping During Exercise, Brian E. Udermann†, Kevin C. Miller†, Scott T. Doberstein‡, David M. Reineke‡, Steven R. Murray‡, Robert W. Pettitt‡

International Journal of Exercise Science

Ankle injuries, via plantarflexion (PF) and inversion, are commonplace today. To reduce ankle injuries, restrictive appliances such as taping and bracing have been employed. These appliances, however, have the disadvantage of potentially loosening considerably with mild activity. Spatting—applying tape over the shoe and sock—has been suggested as a viable alternative, yet its efficacy has not been researched widely. We examined the effects of taping or spatting the ankles on 17 men (age = 20.7 ± 2.1 years; height = 185.7 ± 5.7 cm; mass = 93.6 ± 16.2 kg) before, during, and after 60 minutes of exercise involving multi-directional activity. …

Use Of The Timed Walk Test, Physiological Cost Index And Prosthesis Evaluation Questionnaire As Outcomes Measurements For The Validation Of The Legs M1 Knee, Katie Leatherwood, Wayne Jacobs, Karen Rispin

International Journal of Exercise Science: Conference Proceedings

LeTourneau Empowering Global Solutions (LEGS) administered a preliminary study comparing energy cost and patient satisfaction of three different prosthetic knee configurations. The LEGS M1 knee was compared with both a locked LEGS M1 knee and the OrthoEurope 4-bar (OE4bar) knee. Energy cost was measured using the Physiological Cost Index (PCI) and Timed Walk Test (TWT). Patient satisfaction was measured using the Prosthesis Evaluation Questionnaire (PEQ). The TWT and PCI indicated that the LEGS M1 knee was more costly to walk with than the OE4Bar conformation. In the comparison between the LEGS MI knee and the locked configuration, TWT and PCI …

Integral Effects Of Systemic Nitric Oxide Synthase Inhibition On Carotid Arterial Compliance, Jun Sugawara, Hidehiko Komine, Mutsuko Yoshizawa, Yoko Saito, Mariko Nakamura, Ryuichi Ajisaka, Seiji Maeda, Hirofumi Tanaka

International Journal of Exercise Science: Conference Proceedings

Decreased arterial compliance (increased arterial stiffness) is associated with cardiovascular events. Nitric oxide regulates vascular tone, which can influence arterial compliance. We previously investigated the effects of systemic nitric oxide synthase (NOS) inhibition on arterial compliance under the systemic α-adrenergic receptor blocking. In the present study, we investigated the effect of systemic NOS inhibition alone on central arterial compliance (via carotid arterial ultrasound imaging and applanation tonometry). Eighteen apparently healthy young adults (26±1 years) underwent intravenous infusions of NG-monomethyl-L-arginine (L-NMMA) or placebo (saline) on separate days. In the placebo control condition, no significant changes were observed in mean arterial pressure, …

Association Of Aerobic Fitness And Metabolic Syndrome In Male Firefighters, Christina Durcan, Jennifer M. Markos

International Journal of Exercise Science: Conference Proceedings

Association of Aerobic Fitness and Metabolic Syndrome in Male Firefighters. Durcan, C.M.*, S.E. Martin‡, B.S. Lambert†, N.P. Greene†, J.M. Markos†, A.F. Carbuhn†, J.S. Green‡, FACSM and S.F. Crouse‡, FACSM. Department of Health and Kinesiology, Texas A&M University, College Station, TX. Metabolic syndrome has been shown in numerous studies to be related to a higher incidence of coronary artery disease. A study by R. Jurca et.al., in Med. Sci. Sports Exerc 36(38), found a relationship between aerobic fitness and the prevalence of metabolic syndrome in a group of men enrolled in the Aerobics Center Longitudinal Study. Information on this relationship in …

Prediction Of The Total Energy Cost Of An Acute Bout Of Resistance Exercise In Young Men And Women, Brad S. Lambert, Steven E. Martin, John S. Green Facsm, Aaron F. Carbuhn, Stephen F. Crouse Facsm

International Journal of Exercise Science: Conference Proceedings

Prediction of the Total Energy Cost of an Acute Bout of Resistance Exercise in Young Men and Women

Brad S. Lambert†, Steven E. Martin‡, John S. Green‡ (FACSM), Aaron F. Carbuhn†, Stephen F. Crouse‡ (FACSM). Department of Health and Kinesiology, Texas A&M University, College Station, TX (Sponsor S.F. Crouse)

ACSM currently recommends resistance training (RT) for each major muscle group at least 2 times per week with a traditional repetition range of 8-12 per set. Because many investigators as well as fitness professionals consider kcal expenditure when creating training protocols, energy costs during both RT and aerobic training must be …

Exercise Attenuates Ctgf Levels, Delaying The Onset Of Fibrosis In The Aging Left Ventricle, Claire N. Canon, Jong-Hee Kim, Sean M. Courtney, Brandon Macias, John M. Lawler

International Journal of Exercise Science: Conference Proceedings

Aging is associated with a progressive increase in collagen (i.e., fibrosis) in the aging heart. Fibrosis is associated with a stiffening of the heart and a decrease in heart function. Previous data (Kwak, 2008) showed that matrix metalloproteinase (MMP) activity in the aging heart is decreased linked to an elevation TIMP-1 (tissue inhibitor of MMPs-1); while exercise training increased TIMP-1 and reduced MMP expression. Connective tissue growth factor (CTGF) is an upstream inhibitor of TIMP-1 and is implicated in diabetes and heart failure. We hypothesized that exercise would decrease CTGF levels, thus reducing fibrosis in the aged left ventricle. Young …

Short-Term Changes In Ldl Density And Lipoprotein Particle Number In Trained Men After 3 Different Modes Of Exercise, Jonathan M. Oliver

International Journal of Exercise Science: Conference Proceedings

Short-Term Changes in LDL Density and Lipoprotein Particle Number in Trained Men After 3 Different Modes of Exercise Jonathan M. Oliver, Steven E. Martin, Shawn P. Glowacki, Wade Womack, John S. Green, FACSM, and Stephen F. Crouse, FACSM, Texas A&M University, TX 77843, (Sponsor: S. F. Crouse) PURPOSE: To determine the short-term changes in LDL density and lipoprotein particle number after three different modes of exercise in trained men. METHODS: Twenty seven subjects were randomly assigned to complete either (resistance [RE], endurance [EE], or combination resistance/endurance [CE]) exercise. Fasting blood samples were obtained 24 h before (baseline) and 24 h …

The Effects Of Exercise On Caspase-Independent Mitochondrial Proteins In Regards To Age-Related Apoptosis, Sean M. Courtney, Jong Hee Kim, Brandon R. Macias, Claire N. Canon, John M. Lawler

International Journal of Exercise Science: Conference Proceedings

Exercise may have protective factors in reducing oxidative stress, mitochondrial dysfunction and mitochondrial caspase-dependent apoptosis with aging. It is presently unclear whether the caspase-independent apoptosis via EndonucleaseG (EndoG) and Apoptosis Inducing Factor (AIF) translocation from the mitochondria to the nucleosome is effected by exercise in aging skeletal muscle. It is understood that in aging skeletal muscle EndoG and AIF do translocate from the mitochondria to the nucleosome. We hypothesize that exercise will attenuate the translocation of EndoG and AIF from the mitochondria to the nucleosome in aging white gastrocnemius muscle. Twenty-four Fischer Brown Norway rats were randomly assigned to four …

T-Lymphocyte Activation Is Not Affected By The Mobilization Of Senescent T-Cells Into The Peripheral Blood Following An Acute Bout Of Exercise, David B. Bartlett, Cormac Cosgrove Dr, Guillaume Spielmann, Keith Guy Dr, Richard J. Simpson

International Journal of Exercise Science: Conference Proceedings

It is well recognized that individuals are at an increased risk of illness following an arduous exercise regime. Exercise may affect activation status of cells and play a pivotal role in defense against pathogenic invasion. CD69 is the earliest known expressed cell surface antigen of T-cell activation and is a reliable marker of cell activation status (Green et al. Med. Sci. Sports Exerc. 35, 582-588: 2003). Exercise is known to alter the frequency of senescent cells in the blood expressing the cell surface glycoprotein killer cell lectin-like receptor G1 (KLRG1), and are antigen-experienced and unable to clonally expand upon further …

Does Endurance Training Modify The Decrease In Skeletal Mass And Changes In The Body Composition With Restricted Caloric Intake?, Samantha M. Manning

International Journal of Exercise Science: Conference Proceedings

The common practice among many, including athletes and military personnel, when attempting to lose weight is to limit caloric intake and also to burn off excess calories through exercise.

Our goal was to measure the effects of graded reductions of energy availability on bone mass and body composition in young adult female rats. Reduced energy availability was achieved by increasing exercise energy expenditure and/or reducing caloric intake. After acclimation, 72 rats (5-mo-old) were randomly assigned to one of 6 groups. ADLIB-EX and ADLIB-SED were fed AIN-93M ad lib. Energy restricted, exercised groups (ER20-EX & ER40-EX) and sedentary energy-restricted groups (ER20-SED …

The Effects Of A Nad(P)H Oxidase Inhibition On Matrix Metalloproteinases And Timp-1 In The Mdx Diaphragm, Jong-Hee Kim, Hyo-Bum Kwak, John M. Lawler

International Journal of Exercise Science: Conference Proceedings

Duchenne muscular dystrophy (DMD) is characterized by devastating muscle degeneration that includes oxidative stress, loss of contractile tissue, muscle weakness and increased fibrosis in respiratory muscles (e.g., diaphragm). The mdx mice diaphragm undergoes a progressive degeneration similar to that occurring in patients with DMD. We showed that apocynin, a NAD(P)H oxidase inhibitor, protects against reduction in diaphragm mass, oxidative capacity, and apoptosis. We hypothesized that apocynin (1.5mmol/L per day) would attenuate extramyocyte space and collagen content by ameliorating matrix metalloproteinases (e.g., MMP-2, MMP-9), tissue inhibitors of metalloproteinases (e.g., TIMP-1) and transforming growth factor-β (TGF-β) in the mdx diaphragm. Eight to …

Comparison Of Retrofit Facemask To Mouthpiece For Metabolic Measures And Flow Rates, Abhishek Kelkar, Kevin Kendrick, Daniel Chilek

International Journal of Exercise Science: Conference Proceedings

Comparison of Retrofit Facemask to Mouthpiece for Metabolic Measures and Flow Rates Kelkar, A., Kendrick, K., and Chilek, D. R. Department of Health and Kinesiology, Lamar University, Beaumont TX PURPOSE: To compare metabolic measures (VO2, VCO2) and flow rates (VE) between use of a retrofit preVent™ neoprene mask (MA) and mouthpiece (MP) with nose clip. METHODS: Thirty healthy subjects [males (n = 18, 22.0 ± 2.5 years) and females (n = 12, 25.0 ± 6.3 years)] underwent four different intensity stages; rest (R), low (L), moderate (M) and high (H). Each stage had two, six minute sub stages, one with …

Effect Of Unstable Base Of Support On Energy Expenditure Of Resistance Training Exercise, Jason P. Campbell, Kevin Kendrick, Daniel Chilek

International Journal of Exercise Science: Conference Proceedings

Effect of Unstable Base of Support on Energy Expenditure of Resistance Training Exercise

Campbell, J., Kendrick, K. and Chilek, D. R.

Department of Health and Kinesiology, Lamar University, Beaumont TX

PURPOSE: To determine the effect of an unstable base of support on energy expenditure of a short duration, moderate intensity circuit resistance exercise. METHODS: Participants were 1 female and 8 males (27.0±6.7 yrs.). Data collection included 2 conditions: 1) standing on inflatable balance discs (unstable) and 2) standing on the floor (stable). The order of each condition was counterbalanced and separated by at least one day. Duration of …