Physiology Commons^™

Experimental Investigation Examining The Effects Of Acute Exercise On Implicit Memory Function, Paul D. Loprinzi, Morgan Gilbert, Gina Robinson, Briahna Dickerson

Faculty and Student Publications

© 2019, PsychOpen. All rights reserved. Emerging work suggests that acute exercise can enhance explicit memory function. Minimal research, however, has examined whether acute exercise is associated with implicit memory, which was the purpose of this study. Three separate experimental studies were computed (N = 120; Mean age = 21). In Experiment 1, participants were randomly assigned to either a moderate-intensity bout of acute exercise (15-minute) or engaged in a seated control task (15-minute), followed by the completion of a word-fragmentation implicit memory task. Experiment 2 replicated Experiment 1, but instead employed a higher-intensity exercise protocol. For Experiment 3, participants …

Measures Of Fluid Loss During Surfing: A Preliminary Analysis In Recreational Surfers, Rudi A. Meir, Zachary James Crowley-Mchattan Dr, Lyndon O. Brooks, Blake Duncan, Christian Gorrie, Jeremy Sheppard

International Journal of Aquatic Research and Education

Surfing is a popular sport, but little is known about the extent to which recreational surfers experience fluid loss from this activity. The principal objective of this research was to estimate fluid loss during a surfing session through changes in pre- to post-session urine color (Ucol), urine osmolality (Uosm), and body mass (BM). Data were collected from 11 recreational surfers across 14 surf sessions conducted under various environmental (mean water temperature = 22.1 SD ± 2.3; range = 20-26^oC; air temperature range = 13.1-31.5^oC; relative humidity range = 37.5-88.1%) and surfing conditions (e.g. winter/summer, wave type, …

High-Intensity Acute Exercise And Directed Forgetting On Memory Function, Mary Elizabeth Pace, Paul D. Loprinzi

Faculty and Student Publications

© 2019 by the authors. Licensee MDPI, Basel, Switzerland. Background and Objectives: Despite accumulating research demonstrating that acute exercise may enhance memory function, very little research has evaluated whether acute exercise can effectuate intentional directed forgetting (DF), an adaptative strategy to facilitate subsequent memory performance. Materials and Methods: A three-arm parallel-group randomized controlled intervention was employed. Participants were randomized into one of three groups, including: (1) exercise plus DF (Ex + DF), (2) DF (directed forgetting) only (DF) and (3) R (remember) only (R). The acute bout of exercise included 15 min of high-intensity treadmill exercise. The memory assessment involved …

The Association Of Handgrip Strength And Mortality: What Does It Tell Us And What Can We Do With It?, Samuel L. Buckner, Scott J. Dankel, Zachary W. Bell, Takashi Abe, Jeremy P. Loenneke

Faculty and Student Publications

© Copyright 2019, Mary Ann Liebert, Inc., publishers 2019. The relationship between grip strength and mortality is often used to underscore the importance of resistance exercise in physical activity guidelines. However, grip strength does not appear to appreciably change following traditional resistance training. Thus, grip strength could be considered reflective of strength independent of resistance exercise. If true, grip strength is not necessarily informing us of the importance of resistance exercise as an adult, but potentially highlighting inherent differences between individuals who are stronger at "baseline" compared to their weaker counterpart. The purpose of this article is to discuss: (1) …

Bone Mineral Density Among Men And Women Aged 35 To 50 Years, Martha A. Bass, Ankita Sharma, Vinayak K. Nahar, Stacy Chelf, Brittany Zeller, Linda Pham, M. Allison Ford

Faculty and Student Publications

© 2019 American Osteopathic Association. Context: Osteoporosis is characterized by low bone mineral density (BMD) and has been thought to only be a major health concern for postmenopausal women. However, osteoporosis and its risk factors have been greatly understudied in the middle-aged and male populations. Objective: To assess the likelihood of low BMD and its association with related risk factors in early–middle-aged (defined in this study as 35-50 years) men and women.Methods: Eligible men and women completed a questionnaire assessing calcium intake, hours per week of exercise, and other related risk factors associated with osteoporosis and osteopenia. The primary outcome …

The Consequences Of Cold Water Immersion: Impacts And Treatment, Patrick J. Buck Ph.D., Commander William Roberts, Commander Ken Minehane

International Journal of Aquatic Research and Education

This paper documents a demonstration project conducted by the authors under the auspices of the Irish Naval service. It explores and describes in detail the consequences that cold water immersion can have on the human body. Further, this study investigates post immersion treatment and survival challenges and proposes appropriate casualty care regimes with specific focus on ‘post rescue collapse’ and ‘afterdrop.’ Observations of individual differences in response are reported.

Food Traceability In School Foodservice Operations: Benefits And Challenges, Basem Boutros, Kevin Roberts, Naiqing Lin, Kevin Sauer

Health and Sport Science Faculty Publications

Purpose/Objectives: This study explored food traceability systems in school foodservice in the United States and the potential benefits and challenges to their implementation.

Methods: An online questionnaire was developed and used to collect data. A mixed-mode approach was followed to recruit the participants. A convenience sample of 500 school nutrition professionals from Qualtrics panel was targeted for data collection with the goal of having responses from 300 participants. Due to low response rate from the initial panel, the contact information of a second convenience sample of 200 child nutrition professionals with no geographic representation was obtained from the National Center …

Bilateral Striatal Necrosis Due To Homoplasmic Mitochondrial 3697g>A Mutation Presents With Incomplete Penetrance And Sex Bias, Shanshan Zhong, Shumeng Wen, Yusen Qiu, Yanyan Yu, Ling Xin, Yang He, Xuguang Gao, Hezhi Fang, Daojun Hong, Jun Zhang

Faculty and Student Publications

© 2019 The Authors. Molecular Genetics & Genomic Medicine published by Wiley Periodicals, Inc. Background: Heteroplasmic mitochondrial 3697G>A mutation has been associated with leber hereditary optic neuropathy (LHON), mitochondrial encephalopathy, lactic acidosis and stroke-like episodes (MELAS), and LHON/MELAS overlap syndrome. However, homoplasmic m.3697G>A mutation was only found in a family with Leigh syndrome, and the phenotype and pathogenicity of this homoplasmic mutation still need to be investigated in new patients. Methods: The clinical interviews were conducted in 12 individuals from a multiple-generation inherited family. Mutations were screened through exome next-generation sequencing and subsequently confirmed by PCR-restriction fragment length …

Sex Comparisons Of Agonist And Antagonist Muscle Electromyographic Parameters During Two Different Submaximal Isometric Fatiguing Tasks, Sunggun Jeon, Xin Ye, William M. Miller

Faculty and Student Publications

© 2019 The Authors. Physiological Reports published by Wiley Periodicals, Inc. on behalf of The Physiological Society and the American Physiological Society. To examine the task failure time of the force- and position-based submaximal elbow flexion fatiguing tasks for both sexes, twelve men and eight women visited the laboratory for two separate experimental occasions. During the experiment, they pulled against a rigid restraint for the force task and maintained a constant elbow joint angle to support an equivalent inertial load for the position task. For both fatiguing tasks (50% of the isometric strength at the elbow joint angle of 135 …

Can You Float? Part 2 - Perceptions And Practice Of Lifejacket Use Among Young Adults, Kevin Moran Ph.D.

International Journal of Aquatic Research and Education

Personal flotation devices (PFDs), commonly referred to as lifejackets, have been identified as an extremely effective form of drowning prevention and was identified as a critical distinct water competency by Stallman and colleagues (2017). In this second phase of the Can You Float? study, perceptions and practice of a range of lifejacket tasks among students (N = 40) with known water proficiency were examined. Participants estimated exertion levels before and after practical testing of six simulated survival tasks when wearing lifejackets. All participants completed a 25m sprint swim, 5-minute endurance swim, 5-minute float, and 25m partner assist but many …

An Investigation Of Youth Swimming Skills And Method Of Instruction, Carol C. Irwin, Jennifer R. Pharr, Todd E. Layne, Richard L. Irwin

International Journal of Aquatic Research and Education

Drowning is a leading cause of death for US children. Teaching youth to swim in a formal setting from certified instructors is a consistent drowning prevention recommendation. Purposes for this investigation was to examine type of swimming instruction and ability to swim and compare to attitudes toward swimming among US youth. Methods were similar to previous USA Swimming studies in 2008 and 2010. YMCA associations in five cities were used to recruit adolescent survey respondents (n=600) aged 12-18 years. Results showed African American youth had the lowest rate of formal swimming instruction (29%) compared to White (32%) and Hispanic (42%) …

Association Between Perceived Physical Activity And Cognitive Function In Older Adults, Paul D. Loprinzi, Emily Frith

Faculty and Student Publications

© The Author(s) 2018. There is irrefutable evidence that regular participation in physical activity is favorably associated with numerous positive health outcomes, including cognitive function. Emerging work suggests that perceived physical activity, independent of actual physical activity behavior, is inversely associated with mortality risk. In this study, we evaluate whether perceived physical activity, independent of actual physical activity, is associated with cognitive function, a robust indicator of mortality risk. Data from the cross-sectional 1999–2002 National Health and Nutrition Examination Survey were employed (N = 2352; 60+ years of age). Actual physical activity was assessed via a validated survey. Perceived physical …

Revised Scientific Review: Minimum Age For Swim Lessons, Stephen J. Langendorfer Ph.D.

International Journal of Aquatic Research and Education

The question addressed in the original scientific review (2009) was rephrased as Does sufficient scientific evidence exist to support setting a minimum age for swimming lessons? for this triennial review. Addressing the research question is significant because strong differences of opinion about the appropriate age(s) for initiating learn-to-swim lessons have existed among the pediatric medical profession, aquatic professionals and agencies, and proprietary programs and swim schools for over four decades. The question has implications for the appropriate purposes, pedagogies, and outcomes associated with swimming experiences for infants and young children that will be addressed in a subsequent review. The revised …

Acute Exercise And Mindfulness Meditation On Learning And Memory: Randomized Controlled Intervention, Malina Austin, Paul D. Loprinzi

Faculty and Student Publications

© 2019 The Author(s). Background: The purpose of this experiment was to evaluate the potential combined effects of acute exercise and mindfulness mediation on episodic memory. Methods: All data collection occurred in the authors’ laboratory (January to May of 2019). In this three-arm, within-subject design, participants (N=20; Mage=21.6 years) completed three counterbalanced laboratory visits, including Exercise Only, Exercise + Meditation and Control. Learning and memory were assessed from a word-list task. A one-factor repeated-measures ANOVA was computed for two memory outcomes, including the learning outcome (average performance across the 6 trials) and the long-term memory recall (10-minute delay). Results: The …