Open Access. Powered by Scholars. Published by Universities.®

Physiology Commons

Open Access. Powered by Scholars. Published by Universities.®

2,420 Full-Text Articles 5,790 Authors 677,620 Downloads 104 Institutions

All Articles in Physiology

Faceted Search

2,420 full-text articles. Page 1 of 87.

Salivary Vip Concentrations Are Elevated In Humans After Acute Stress, Giovanni Ventre 2015 Seton Hall University

Salivary Vip Concentrations Are Elevated In Humans After Acute Stress, Giovanni Ventre

Seton Hall University Dissertations and Theses (ETDs)

The purpose of this research was to evaluate two salivary neuropeptides in the context of the stress response. The research was focused first and foremost on evaluating the usefulness of salivary Neuropeptide Y (NPY) and salivary vasoactive intestinal peptide (VIP) as stress indicators. Secondly, we questioned whether these markers help us in distinguishing between physical and psychological stress. Psychological stress can be experienced in a situation such as that in anticipation of an important exam or mental task. Physical stress can be experienced usually by strenuous exercise. Salivary NPY and salivary VIP are two neuropeptides that are released as a ...


Use And Misuse Of The Likert Item Responses And Other Ordinal Measures, Phillip A. Bishop, Robert L. Herron 2015 Univ of Alabama

Use And Misuse Of The Likert Item Responses And Other Ordinal Measures, Phillip A. Bishop, Robert L. Herron

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 297-302, 2015. Likert, Likert-type, and ordinal-scale responses are very popular psychometric item scoring schemes for attempting to quantify people’s opinions, interests, or perceived efficacy of an intervention and are used extensively in Physical Education and Exercise Science research. However, these numbered measures are generally considered ordinal and violate some statistical assumptions needed to evaluate them as normally distributed, parametric data. This is an issue because parametric statistics are generally perceived as being more statistically powerful than non-parametric statistics. To avoid possible misinterpretation, care must be taken in analyzing these types of data ...


Evaluation Of A New Automated Pulmonary Gas Analysis System, Tove Hallenstål, Ida Sundqvist, Michael Svensson, Ji-Guo Yu Dr. 2015 Department of Surgical and Perioperative Sciences, Sport medicine Unit, Umeå University, Umeå, Sweden

Evaluation Of A New Automated Pulmonary Gas Analysis System, Tove Hallenstål, Ida Sundqvist, Michael Svensson, Ji-Guo Yu Dr.

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 287-296, 2015. The study aimed to evaluate the validity and reliability of a new automated pulmonary gas analysis system - Exercise Physiology System (EPS). The Oxycon Pro, a well-established automated pulmonary gas analysis system was used as a reference system. Six well-trained cyclists were recruited and performed two identical submaximal exercises on a cycle ergometer over one week interval. During the exercises, pulmonary gas exchange: ventilation (VE), oxygen consumption (VO2), elimination of carbon dioxide (VCO2), and ratio between carbon dioxide and oxygen (RER) was measured using both systems in randomized order. The ...


Effect Of Beetroot Juice On Self-Regulated, Moderate-Intensity Exercise, Jordyn N. Rienks, Andrea A. Vanderwoude, Elizabeth Maas, Zachary M. Blea, Andrew W. Subudhi 2015 University of Colorado Colorado Springs

Effect Of Beetroot Juice On Self-Regulated, Moderate-Intensity Exercise, Jordyn N. Rienks, Andrea A. Vanderwoude, Elizabeth Maas, Zachary M. Blea, Andrew W. Subudhi

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 277-286, 2015. Dietary nitrate supplementation has been shown to reduce oxygen consumption at a fixed work rate. We questioned whether a similar effect would be observed during variable work rate exercise at a specific rating of perceived exertion (RPE), as is commonly prescribed for aerobic training sessions. Using a double-blind, placebo controlled, crossover design, ten females (25 ± 3 years; VO2peak 37.1 ± 5.3 ml/kg/min) performed two 20-min cycle ergometer trials at a constant RPE of 13 (somewhat hard) 2.5 hours following ingestion of 140 ml of concentrated ...


Relation Of Income And Education Level With Cardiorespiratory Fitness, Erik A. Willis, Dave White, Alex Shafer, Kristofer Wisniewski, Fredric L. Goss, Laurel B. Chiapetta, Vincent C. Arena, Robert J. Robertson, Elizabeth F. Nagle 2015 University of Kansas Medical Center

Relation Of Income And Education Level With Cardiorespiratory Fitness, Erik A. Willis, Dave White, Alex Shafer, Kristofer Wisniewski, Fredric L. Goss, Laurel B. Chiapetta, Vincent C. Arena, Robert J. Robertson, Elizabeth F. Nagle

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 265-276, 2015. While there is strong evidence measuring the association between leisure time physical activity (LTPA) and socioeconomic status (SES) there are limited data on the relationship between cardiorespiratory fitness (CRF) and SES. The purpose of this cross-sectional study was to examine differences in CRF and LTPA between household income and individual education in young adults. A sample of 171 (males n=98, female n=73) young adults participated in the University of Pittsburgh-Physical Activity Study. Participants completed CRF testing. Demographic characteristics were assessed via interviewer administered standardized survey and LTPA was assessed ...


Risk Of Disordered Eating Among Division I Female College Athletes, Elizabeth Wells, Alexandra Chin, Jennifer Tacke, Jennifer Bunn 2015 Campbell University

Risk Of Disordered Eating Among Division I Female College Athletes, Elizabeth Wells, Alexandra Chin, Jennifer Tacke, Jennifer Bunn

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 256-264, 2015. The purpose of this study was to assess the risk of disordered eating (DE) among female athletes in lean and non-lean sports using the ATHLETE survey. The ATHLETE survey is divided into six different constructs, and a high score indicates a high risk for DE. Eighty-three varsity female athletes from eight Campbell University sports teams completed the survey and a medical history form anonymously. The sports were divided into sports that traditionally have a high risk for DE (lean sports) and those with a low risk (non-lean sports). The lean sports ...


Effects Of Caffeine On Repeated Upper/Lower Body Wingates And Handgrip Performance, Thomas Andre, Matt Green, Joshua Gann, Eric O'Neal, Tom Coates 2015 Baylor University

Effects Of Caffeine On Repeated Upper/Lower Body Wingates And Handgrip Performance, Thomas Andre, Matt Green, Joshua Gann, Eric O'Neal, Tom Coates

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 243-255, 2015. Caffeine enhances aerobic performance, but research is equivocal regarding anaerobic performance. This study examined effects of caffeine (7 mg/kg) on anaerobic performance in anaerobically active males (n = 10). Participants completed counterbalanced, double blind caffeine (Caf) and placebo (Pl) trials including a) 6 x 15 s upper body Wingates (UWant), b) 6 x 15 s lower body Wingates (LWant) and c) 6 x15 s maximal effort static hand grip test (HG) with 3 min recovery between bouts, 30 min between exercises. Peak power (Ppeak), mean power (Pmean ...


The Relationship Of Gender And Self-Efficacy On Social Physique Anxiety Among College Students, Sara M. Rothberger, Brandonn Harris, Daniel Czech, Bridget F. Melton 2015 Georgia Southern University

The Relationship Of Gender And Self-Efficacy On Social Physique Anxiety Among College Students, Sara M. Rothberger, Brandonn Harris, Daniel Czech, Bridget F. Melton

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 234-242, 2015. The anxiety or fear associated with physique evaluation is defined as Social Physique Anxiety (SPA). Numerous studies have examined this construct, yet a gap exists exploring this phenomenon among current college students with SPA, self-efficacy, and gender concurrently. Therefore, the purposes of this study included quantitatively analyzing the association between SPA, gender, and self-efficacy. Participants included 237 students at a Southeastern university participating in jogging, body conditioning, or weight training courses. Analysis of Variance yielded a significant main effect for self-efficacy as well, as those with lower self-efficacy displayed higher levels ...


Trx Suspension Training: A New Functional Training Approach For Older Adults - Development, Training Control And Feasibility, Angus Gaedtke, Tobias Morat 2015 German Sport University Cologne

Trx Suspension Training: A New Functional Training Approach For Older Adults - Development, Training Control And Feasibility, Angus Gaedtke, Tobias Morat

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 224-233, 2015. Because of its proximity to daily activities functional training becomes more important for older adults. Sling training, a form of functional training, was primarily developed for therapy and rehabilitation. Due to its effects (core muscle activation, strength and balance improvements), sling training may be relevant for older adults. However, to our knowledge no recent sling training program for healthy older adults included a detailed training control which is indeed an essential component in designing and implementing this type of training to reach positive effects. The purpose of this study was to ...


The Acute Effects Of Whole-Body Corrective Exercise On Postural Alignment, Nicole Rencher, James D. George, Pat R. Vehrs, Sarah E, Ridge, Gilbert W. Fellingham 2015 Brigham Young University

The Acute Effects Of Whole-Body Corrective Exercise On Postural Alignment, Nicole Rencher, James D. George, Pat R. Vehrs, Sarah E, Ridge, Gilbert W. Fellingham

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 213-223, 2015. This study examined the acute effects of whole-body corrective exercise on postural alignment in a sample of 50 male participants (18-30 y) displaying asymmetrical postural deviations. All participants were randomly assigned to either a nonexercise control (n = 25) or corrective exercise treatment (n = 25) group. A three-dimensional motion analysis Vicon system was employed to quantify standing postural alignment at the beginning and end of a 6 d study. Postural misalignments were determined in degrees of symmetry (tilt) and rotation using horizontal and vertical virtual plumb lines for the following locations: hip ...


Sensitivity Of Prescribing High-Intensity, Interval Training Using The Critical Power Concept, Robert W. Pettitt, Ashley M. Placek, Ida E. Clark, Nicholas A. Jamnick, Steven R. Murray 2015 Minnesota State University, Mankato

Sensitivity Of Prescribing High-Intensity, Interval Training Using The Critical Power Concept, Robert W. Pettitt, Ashley M. Placek, Ida E. Clark, Nicholas A. Jamnick, Steven R. Murray

International Journal of Exercise Science

International Journal of Exercise Science 8(3): 202-212, 2015. The critical power (CP) concept enables the calculation of time to exhaustion (tLIM) for a given power output above CP using the equation of tLIM = W’/(power – CP), where W’ is the curvature constant, and CP is the asymptote for the power-tLIM relationship. The CP concept offers great promise for prescribing high-intensity interval training (HIIT); however, knowledge on the concept’s sensitivity is lacking (i.e., how much of a difference in W’ expenditure is needed to evoke different metabolic responses). We tested if two different power-tLIM ...


The Effects Of Arginine Vasopressin On Maternal Behavior And Aggression In Peromyscus Californicus Mothers, Nathaniel Ng 2015 Seattle Pacific University

The Effects Of Arginine Vasopressin On Maternal Behavior And Aggression In Peromyscus Californicus Mothers, Nathaniel Ng

Honors Projects

Research studies since the 1950s have shown that a chemical within the brain called arginine vasopressin (AVP) is associated with the modulation of many different social behaviors in mammals. Some of these behaviors are related to parenting, such as parental care initiation, aggression, social recognition, depression and anxiety. Understanding the physiology behind AVP regulation could allow for the creation of new therapies for treating human social disorders, such as using an AVP receptor antagonist to attenuate anxiety. This project examines how neural injections of AVP and an AVP receptor antagonist affect both maternal care and aggression in female Peromyscus californicus ...


The Caffeine Dose Response In Habitual Consumers Performing A Maximal Anaerobic Test, N T. Smith, K J. Ogden, A B. Mininger, J L. Haak, H S. Kieffer FACSM 2015 Messiah College

The Caffeine Dose Response In Habitual Consumers Performing A Maximal Anaerobic Test, N T. Smith, K J. Ogden, A B. Mininger, J L. Haak, H S. Kieffer Facsm

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file


Β-Alanine Supplementation Has No Effect On Rowing Performance In College Age Athletes, B J. Chrisfield, T D. Stutzman, Z Schutte, I Starr, A B. Porto, H S. Kieffer FACSM 2015 Messiah College

Β-Alanine Supplementation Has No Effect On Rowing Performance In College Age Athletes, B J. Chrisfield, T D. Stutzman, Z Schutte, I Starr, A B. Porto, H S. Kieffer Facsm

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file.


Physical Activity Participation For College Students With Learning Disabilities And Adhd, J L. Valis, M Gonzalez 2015 Marywood University

Physical Activity Participation For College Students With Learning Disabilities And Adhd, J L. Valis, M Gonzalez

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file


Mechanical Efficiency Of Repeated Jump Squats With Reduced Eccentric Load, M Tholis, G Moir, C Witmer, M Miltenberger, S Davis FACSM 2015 East Stroudsburg University

Mechanical Efficiency Of Repeated Jump Squats With Reduced Eccentric Load, M Tholis, G Moir, C Witmer, M Miltenberger, S Davis Facsm

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file


Quantifying Emergency Department Visits From Sport With A Focus On The Lower Extremity And Knee, M S. Tenan, J C. Ives 2015 University of Texas at Austin

Quantifying Emergency Department Visits From Sport With A Focus On The Lower Extremity And Knee, M S. Tenan, J C. Ives

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file


Sustained Acoustic Medicine For Improved Recovery From Tendinitis, R M. Taggart, S E. Henderson, G K. Lewis Jr. 2015 ZetrOZ, Inc.

Sustained Acoustic Medicine For Improved Recovery From Tendinitis, R M. Taggart, S E. Henderson, G K. Lewis Jr.

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file


The Effect Of Training Status On Glycemic Control In A Collegiate Population, A Stouffer, T Ezolt, E Stein, K Wallace, J Sanders, W Braun FACSM 2015 Shippensburg University

The Effect Of Training Status On Glycemic Control In A Collegiate Population, A Stouffer, T Ezolt, E Stein, K Wallace, J Sanders, W Braun Facsm

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file


Effects Of Age And Sex On Muscle Function During Isovelocity Contractions., C N. Steele, A J. Fradkin FACSM, J L. Andreacci FACSM, A C. Veneziaz, E S. Rawson FACSM 2015 Bloomsburg University

Effects Of Age And Sex On Muscle Function During Isovelocity Contractions., C N. Steele, A J. Fradkin Facsm, J L. Andreacci Facsm, A C. Veneziaz, E S. Rawson Facsm

International Journal of Exercise Science: Conference Proceedings

Please view abstract in the attached PDF file


Digital Commons powered by bepress