Exercise Physiology Commons^™

3-Hydroxy-5alpha-Androst-1-En-17-One Enhances Muscular Gains But Impairs The Cardio-Metabolic Health Of Resistance Trained Males., Jorge Granados, Trevor Gillum, Cammie Hodges, Matthew Kuennen

International Journal of Exercise Science: Conference Proceedings

No abstract provided.

The Effects Of Exercise On Depression And Quality Of Life In Active And Sedentary Floor Nurses, Patrick B. Collins Ms, Acsm-Hfs

International Journal of Exercise Science: Conference Proceedings

Surveys were sent to all nursing staff (n=550) at a West Texas hospital. A total of 158 nurses responded and 112 nurses met the criteria for inclusion (16 male, 96 female). The surveys analyzed health-related quality of life using the SF-36 and depression scores using the PHQ-9. Data regarding exercise frequency, intensity, time, and type were also gathered. Results of the survey were then analyzed using SPSS statistical software to search for a relation between exercise, depression, and health-related quality of life. After determining that age and gender did not have a significant effect in the study, it was found …

Metabolic Requirements Of Farmers/Ranchers Performing Simulated Occupational Tasks: Recommendations For Cardiovascular Rehabilitation, Shannon L. Jordan, Rebecca Rogers, Justin Karcher, Kathleen Kennedy, Anne Lawrence, Jenny Adams

International Journal of Exercise Science: Conference Proceedings

Current ACSM guidelines for cardiac rehabilitation (rehab) return to work state that exercise training should mimic the muscle groups, movements, and energy systems utilized in a patient’s occupational tasks. The aims of this study were to evaluate the metabolic costs of typical farming/ranching tasks, determine the pattern of movement and muscle groups involved in these tasks, and determine the approximate duration of these tasks. Methods: Participants (n=29) were employed in the farming/ranching field and ranged in aged from 18-57 years. The participants performed four tasks: loading 10 hay bales, digging a fence post hole, filling eight seed hoppers, and …

Predicting Future Falls In The Elderly Using The Timed Up And Go Test, Pearl M. Kafoa, Casi R. Helbig

International Journal of Exercise Science: Conference Proceedings

Walking is a complex motor skill that involves interactions between brain and body systems. These interactions allow an individual to quickly adapt to changes in the environment while walking. One's gait can inhibit mobility and limit daily activities. It has also been associated with the risk of falling, nursing home placement, and even death. As people age, their body and overall health deteriorates, including their locomotor skills. The Timed Up and Go (TUG) Test (see Figure 1) is an assessment used in clinical settings such as hospitals, nursing homes and especially physical therapy to predict health, function, and falls in …

Determination Of Anaerobic Threshold By Heart Rate Or Heart Rate Variability Using Discontinous Cycle Ergometry, Sung W. Park, Michael T. Brenneman, William H. Cooke, Alberto Cordova, Donovan L. Fogt

International Journal of Exercise Science: Conference Proceedings

We evaluated whether changes in heart rate (HR) and/or heart rate variability (HRV) would reflect anaerobic threshold (AT) using a discontinuous, incremental, cycle test. To accomplish this, exercise thresholds were determined for HR and HRV metrics and compared with AT via ventilatory threshold. Experienced cyclists (30.6±5.9y; 7 males, 8 females) completed a discontinuous cycle test consisting of 7 stages (6 min each with 3 min of rest between). Three stages were performed at W below AT, one at AT, and 3 above AT. The averaged stage data for Ve, HR, and time- and frequency-domain HRV metrics were plotted versus W. …

Where College Students Live Can Impact Their Eating And Exercise Habits, Dong Woo Hahn, Aram Yoon, Kijeong Kim, Sukho Lee

International Journal of Exercise Science: Conference Proceedings

University freshmen usually face with huge environmental changes. They are often stressful and may lead to some health-related problems. We wanted to know whether or not their residence influences eating and exercising habits. PURPOSE: To examine the effect of residence on level of physical activity, eating and other health related habits in college students. Methods: Total 71 college students participated in this study. Thirty one lives on campus and forty lives off campus. Participants completed a consent form and measurements of body weight, height, and body mass index (BMI). Level of physical activity was monitored using pedometer for 7 days. …

Simulated Galactic Cosmic Radiation Exposure Impairs Mouse Vertebral Bone Adaptations To Exercise During Recovery From Partial Weightbearing, Katherine A. Elmer, Ramon D. Boudreaux, Corinne E. Metzger, Susan A. Bloomfield

International Journal of Exercise Science: Conference Proceedings

Partial weightbearing that simulates Lunar gravity (1/6^th of Earth’s gravitational force) results in a loss of bone volume. High energy radiation like that found in galactic cosmic radiation exposure also negatively affects the skeleton. Because resistance training is the most effective exercise mode to counteract disuse-induced bone loss, this experiment combined low-dose, high-energy simulated galactic cosmic radiation (GCR) exposure, followed by a period of partial weightbearing (PWB), and then a period of resistance exercise or normal cage activity during recovery. Young adult female BALB/c mice were randomly assigned to age-matched cage controls (CC) or PWB (G/6) groups. From there, …

Carotid Baroreflex Control Of Heart Rate Is Enhanced During Whole-Body Heat Stress, Davor Krnjajic, Cory L. Butts, Mitchel R. Samels, Shane W. Warren, Tyler J. Benson, Keller M. David

International Journal of Exercise Science: Conference Proceedings

Whole-body heat stress (WBH) reduces orthostatic tolerance. While impaired carotid baroreflex (CBR) function during WBH has been reported, study design considerations may limit interpretation of previous findings. We sought to test the hypothesis that CBR function is unaltered during WBH. CBR function was assessed in ten subjects using 5-sec trials of neck pressure (45, 30 and 15 Torr) and neck suction (-20, -40, -60 and - 80 Torr) during normothermia (NT) and passive WBH (Δ core temp ~1 °C). Analysis of stimulus response curves (4-parameter logistic model) for CBR control of heart rate (CBR-HR) and mean arterial pressure (CBR-MAP), as …

Biomechanical And Statistical Effects Of Changing The Three-Point Line In Division Iii Women’S Basketball, Katelyn E. Bartell, Jimmy Smith, Scott P. Mclean

International Journal of Exercise Science: Conference Proceedings

The NCAA has recently changed the distance for the three-point line in women’s basketball, which may affect shooting mechanics for a three-point shot. While the fundamental movements of the shot should not be affected by increasing distance, some elements of the shot may need to change to propel the ball the required distance. PURPOSE: To analyze the effect of increased distance of the basketball three-point line on shot kinematics and shooting performance of female basketball players. METHODS: Ten players (19.0±0.6 yrs, 173.7±8.7 cm, 64.0±8.2 kg) from an NCAA Division III Women’s Basketball team shot from the current three-point line, 20’9” …

Gender Comparisons Of The Electromyographic Responses To Knee Extension Exercises With Different Initial Restriction Pressures, Guillermo Perez B.S., Joe Angel Lopez B.S., Murat Karabulut Ph.D, Cscs

International Journal of Exercise Science: Conference Proceedings

The effects of blood flow restriction training (BFR) may be impacted by the several physiological and biological differences found between genders. Since the pattern of regional body composition may be different between males and females, the impact of tightness of the restrictive cuffs (initial restrictive pressure; IRP) might be different for females causing variation in the level of muscle activation; therefore research on a female population is needed to have a complete understanding of BFR. PURPOSE: To compare changes in electromyography (EMG) amplitude (RMS) and median frequency (MDF) in males and females during application of different IRPs of 40-45 mmHg …

Examining The Relationship Between Simple And Choice Reaction Time On Team-Sport And Individual-Sport Athletes, Dylan F. Riedesel, Sara E. Mahoney

International Journal of Exercise Science: Conference Proceedings

ABSTRACT

Reaction time is an important aspect in athletic performance. Simple reaction time (SRT), a response to a single stimulus, may be important to nearly all types of athletes; however choice reaction time (CRT), a reaction to multiple stimuli, is uniquely required in team sports such as football or basketball. Literature has shown that generally athletes have faster SRT than non-athletes, but there is limited research examining the effect of sport type of either SRT or CRT. The purpose of this experiment is to determine if team sport athletes have faster SRT and CRT compared to individual-sport athletes and non-athletes. …

Factors Associated With Diabetes Risk In South Texas College Students, Jordan W. Stack, Christine Brumley, Mansi Parikh, Adley Canales, Sara E. Mahoney, Christopher M. Hearon

International Journal of Exercise Science: Conference Proceedings

South Texas has a high prevalence of diabetes and college students may be particularly at risk for developing diabetes. Early detection and prevention are crucial to reducing the prevalence of this disease. While increased BMI, sedentary activity and depression have been associated with diabetes progression in the general population, it has not been established whether these factors contribute to increased risk for developing diabetes in college students. PURPOSE: To assess diabetes risk and to determine whether depressive symptoms or physical activity patterns are associated with increased diabetes risk in college students. METHODS: 69 college students were assessed for diabetes …

The Effects Of Heading On Neurocognitive Function In Female Collegiate Soccer Players During An Entire Soccer Season, Sarah E. Nonaka, Scott Mclean, Jimmy Smith

International Journal of Exercise Science: Conference Proceedings

Recently, much debate has occurred regarding the effects of repeated heading by soccer players on their neurocognitive function. PURPOSE: To determine the effects of heading on neurocognitive function in female collegiate soccer players during an entire soccer season. METHODS: Twenty-four members of the 2012 Southwestern University Women’s Soccer team completed the ImPACT test during preseason and postseason, and self-reported the number of headers for the week immediately prior to each testing session. Amount of playing time for each player was determined from records obtained from the Southwestern University Athletics Department. The six composite scores and the cognitive efficiency index from …

The Effects Of Vascular Occlusion Training On Respiratory Quotient And Energy Expenditure When Coupled With Cardiovascular Training, Justin Sprick, Richard Lloyd Dr, James Eldridge Dr

International Journal of Exercise Science: Conference Proceedings

Purpose: The Purpose of this study was to determine the effects of pairing a vascular occlusion training protocol with a bout of cardiovascular training on substrate utilization and caloric expenditure in healthy adults. Methods: 5 healthy adults were recruited to report to the lab one day a week for the duration of two hours for four consecutive weeks. During the first session informed consent was collected, a VO2max test was performed, and a familiarization session with vascular occlusion training was conducted. The next three sessions were randomized for each subject but consisted of the following three protocols. During Protocol …

The Influence Of Dietary Sugars And Acute Exercise On Postprandial Triglyceride And Glucose Concentration, James R. Rowe, Kyle Biggerstaff, Vic Ben-Ezra, Nancy Dimarco

International Journal of Exercise Science: Conference Proceedings

Purpose: Examine the effects of prior aerobic exercise on postprandial triglyceride (PPTG) and glucose concentration following a mixed liquid meal (LM) made with either glucose or fructose sugars. Methods: Sedentary pre-menopausal women (n=16; age=28.2±6.1yrs; Wt. = 61.2±10.5kg; BMI= 23.2±2.9 kg/m2; VO2 max =30.8±4.2 ml/kg/min) completed four trials in random order: 1) Control-Fructose, 2) Control-Glucose, 3) Exercise-Fructose, 4) Exercise-Glucose. Exercise consisted of treadmill walking at 65% VO2 max expending 500 calories. Control consisted of resting in the laboratory for approximately 1 hour. Trials were completed 15 hours prior to the LM. The morning after each trial, a fasting (12hr) blood sample …

Lactate Concentration Response To Knee Extension Exercise With Various Initial Restrictive Pressures In Females, Joe-Angel Lopez B.S., Guillermo Perez B.S., Murat Karabulut Phd, Cscs

International Journal of Exercise Science: Conference Proceedings

Literature remains lacking in regards to the role that initial restrictive pressure (IRP) coupled with resistance training as it pertains to the production and accumulation of metabolic byproducts such as lactate, more specifically in women. Purpose: The present study investigates the importance of the IRP as a variable on lactate concentrations during knee extension exercise in combination with blood flow restriction in female subjects. Methods: Thirteen female volunteers (age 21± 1.35) served as the test sample for this study. Initial health screening, PAR-Q, signing of the informed consent, procedural and dynamometer setting familiarization were completed on the first meeting. Prior …

Comparison Of Ascending And Descending Pyramidal Loading Using The Bench Press, Joey R. Miller

International Journal of Exercise Science: Conference Proceedings

Individuals that weight train want to know the best way to accumulate a greater amount of volume in a workout to potentially increase muscle hypertrophy and strength. The distribution of the training load during a weight training session could be an important variable in determining total session training volume. The purpose of this study was to examine the importance of load distribution on training volume over three weight training sets utilizing the bench press. We hypothesized that the descending load pyramidal (DP) scheme of distributing training load will produce greater training volumes than the opposite ascending load pyramidal (AP) scheme. …

Comparisons Of Age-Predicted Maximum Heart Rate Equations In College Kinesiology Students, Jaime R. Morales

International Journal of Exercise Science: Conference Proceedings

Maximal heart rate values are used frequently in clinical medicine and physiology in order to establish a basis for exercise intensity for rehabilitation, wellness, and disease prevention programs. The accuracy of maximal heart rate prediction equations needs further examination for use within exercise physiology, sports medicine, and fitness fields. Purpose: To compare accuracy of age-predicted maximum heart rate equations in college kinesiology students. Methods: Participants who achieved an RERmax of < 1.1 and/or an RPE at max <17 were not included. Forty-one participants (25 males and 16 females, age=26.4±6.7 yrs, ht=167.4±9.2 cm, wt=80.8±23.3 kg, BMI= 28.4±6.2) performed the Bruce protocol in which VO₂, RER, RPE (Borg’s 6-20 scale) and HR were recorded. Two heart rate max equations were used: 220-age (EQ1) and 208-0.7*age (EQ2). Repeated measures ANOVA was used to determine the differences between the two equations and the criterion, with alpha set at .05. Error was calculated as [(EQ1-HRmax)/HRmax]*100 and Bland Altman plots were used to illustrate level of agreement. Results: There were significant differences between HRmax and both prediction equations F(2,39)=88.867, p=.001. Pairwise comparison indicated that EQ1 (194.0 ± 1.0 b/min) was significantly higher …

Red Flags In Family History And Auscultations That May Require 12-Lead Ecg When Screening Athletes, Annise V. Nalepa, Jennifer S. Blevins-Naughton, Jamie Cvikel, Ryan Eaton, Steve J. Simpson

International Journal of Exercise Science: Conference Proceedings

The main components of pre-participation physical exams (PPE) at the NCAA Division II level include a thorough medical history and physical evaluation (AHA). “Red flags” for risk on the PPE and medical history include, but are not limited to, heart murmur, diagnosed enlarged heart in a family member, unexplained chest pain, and complaints of "skipped" heartbeats. The purpose of this investigation was to determine if the use of 12-lead ECG for the PPE would reveal further red flags specific to cardiac abnormalities. Twelve-lead electrocardiogram (ECG) was performed on all new athletes at Tarleton State University during the Summer and Fall …

Nursing With Eating, Activity, And Supportive Environment (Ease) : Effects Of An Eight-Week Mentoring Program, April V. Lane Hartmann, Laura Van Winkle-Preston, Peggy Mancuso, Gayle Roux, Shannon Scott, Nancy M. Dimarco

International Journal of Exercise Science: Conference Proceedings

Each year, approximately 2.8 million adults die from complications related to obesity (World Health Organization, 2011). One in three adults aged 20 years or older is obese, and 6% are morbidly obese. This problem is increasing at an alarming rate in young adults, and 20.5% of college students are classified as being overweight based upon their body mass index (BMI) (Adderley-Kelly, 2007). The purpose of this study was to increase knowledge about evidence-based, effective interventions that will enable college-aged, pre-nursing students to attain physical and mental well-being. The participants (N=24) were freshman and sophomore pre-nursing majors who were randomized into …