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Full-Text Articles in Life Sciences

Physical Activity And Mental Health Of Youth During The Covid-19 Pandemic, Amber Watson, Alicia Fedewa, Clair Tischner Oct 2023

Physical Activity And Mental Health Of Youth During The Covid-19 Pandemic, Amber Watson, Alicia Fedewa, Clair Tischner

International Journal of Physical Activity and Health

The COVID-19 Pandemic has globally impacted children’s physical activity and mental health outcomes since the transition to remote learning (Štveráková, et al., 2021). Children and adults may encounter negative mental health related consequences, higher stress, and a significant lack of physical activity while in physical and social isolation (Clemente-Suárez, 2022). In particular, school-aged children have experienced a significant reduction in physical activity since transitioning to remote learning and do not have sufficient opportunities to make up for this loss while engaged in remote learning (Štveráková, et al., 2021). Increased physical activity has been consistently correlated with positive mental health outcomes …


Infant Age Moderates Associations Between Infant Temperament And Maternal Technology Use During Infant Feeding And Care, Maya I. Davis, Camille M. Delfosse, Alison K. Ventura Oct 2022

Infant Age Moderates Associations Between Infant Temperament And Maternal Technology Use During Infant Feeding And Care, Maya I. Davis, Camille M. Delfosse, Alison K. Ventura

Kinesiology and Public Health

Previous research illustrated that infants’ temperamental traits shape parents’ behaviors, but parents’ behaviors can also elicit or intensify infants’ behaviors in ways that shape temperament. One understudied aspect of parenting that may exhibit bidirectional influences with temperament is parent technology use (e.g., use of mobile devices) within family contexts. To date, few studies have examined whether maternal technology use is associated with infant temperament and whether age-related differences in these associations exist. The present study was a secondary analysis of pooled data from three infant feeding studies. Mothers (n = 374) of young infants (age 16.2 ± 6.2 weeks) …


Anthropometric And Leg Power Factors Affect Offensive Kinetic Patterns In Fencing, Anastasia Ntai, Charilaos Tsolakis, Athanasia Smirniotou, Giorgos Paradisis Jul 2021

Anthropometric And Leg Power Factors Affect Offensive Kinetic Patterns In Fencing, Anastasia Ntai, Charilaos Tsolakis, Athanasia Smirniotou, Giorgos Paradisis

International Journal of Exercise Science

International Journal of Exercise Science 14(4): 919-931, 2021. This study aimed to identify potential factors that may influence specific fencing offensive kinetic patterns in a large group of well-trained fencers having different ages, gender level, and training specialization. One-hundred-thirty fencers (males: n = 72) and (females: n = 58), participating in three different fencing weapons (epee, foil, and sabre), having considerable experience of national and international competitions. All members of seven national fencing teams were measured for basic anthropometric parameters, leg power performance and velocity values for three specific kinetic offensive patterns during an International Fencing camp. A multivariate analysis …


Relative Age Effects In Elite Olympic Weightlifters, Jonathan M. Kollars, Kyle S. Beyer, Christopher B. Taber Jul 2019

Relative Age Effects In Elite Olympic Weightlifters, Jonathan M. Kollars, Kyle S. Beyer, Christopher B. Taber

Exercise Science Faculty Publications

PURPOSE: To determine if RAEs exist in elite Olympic weightlifters from the past five Olympic Games. METHODS: Using retrospective competition data from the International Weightlifting Federation database a total of 953 Olympic Weightlifters (595 males and 358 females) who competed in the Olympic Games between 2000 and 2016 were included in this study. Weightlifters who competed in multiple Olympic Games were only counted once and duplicates were removed from this investigation. The weightlifters were divided into subset weight classes; men lightweight (56kg, 62kg, and 69kg), men middleweight (77kg, 85kg, and 94kg), men heavyweight (105kg and 105kg+), women lightweight (48kg, 53kg, …


Blood Pressure And Cardiovascular Health Has Relationship With Age In Adults During Adulthood, Allyson K. Getty, Jessica M. Lenzo, Tia R. Wisdo, Joyann E. Oakman, Christina M. Cromwell, Jessica A. Hill, Lauren N. Chavis, Deborah L. Feairheller, Phd Aug 2017

Blood Pressure And Cardiovascular Health Has Relationship With Age In Adults During Adulthood, Allyson K. Getty, Jessica M. Lenzo, Tia R. Wisdo, Joyann E. Oakman, Christina M. Cromwell, Jessica A. Hill, Lauren N. Chavis, Deborah L. Feairheller, Phd

International Journal of Exercise Science

International Journal of Exercise Science 10(5): 798-806, 2017. Efforts to combat cardiovascular disease (CVD) have proven effective, especially in the population aged 55-74 years. However, less research has been conducted in younger populations to determine at what age CVD risk develops. The purpose of this study is to compare cardiovascular health markers in adults, specifically CVD risk between younger adults aged 18-22 and a slightly older group of adults in middle adulthood aged 23-54. Cardiovascular health measures were collected from a group of adults; 13 younger adults (20.2±0.9 yrs) and 10 adults in middle adulthood (42.9±10.1 yrs). All participants were …


The Neuroprotective Effects Of Endurance Training On The Aging Brain, Katelyn Norton Aug 2016

The Neuroprotective Effects Of Endurance Training On The Aging Brain, Katelyn Norton

Electronic Thesis and Dissertation Repository

Dysregulation of autonomic control often develops with advancing age, favoring a chronic state of heightened sympathetic outflow with parasympathetic withdrawal. However, the mechanisms of this age-related autonomic impairment are not known and may relate to alterations in brain structure (e.g. cortical atrophy) and/or altered neural function, particularly in regions related to the cortical autonomic network, namely, the medial prefrontal cortex (MPFC), insula cortex (IC), and hippocampus (HC). Exercise exerts beneficial effects on brain structure and, in the case of cognition, neurologic function; however, how exercise affects regions of the brain related to autonomic function are not known. This thesis tested …


Validation Of Maximal Heart Rate Prediction Equations Based On Sex And Physical Activity Status, Stephen J. Roy, J.L. Mccrory Oct 2015

Validation Of Maximal Heart Rate Prediction Equations Based On Sex And Physical Activity Status, Stephen J. Roy, J.L. Mccrory

International Journal of Exercise Science

International Journal of Exercise Science 8(4): 318-330, 2015. The purpose of the study was to determine if measured maximal heart rate (HRmax) was affected by sex or aerobic training status, and to determine the accuracy of three common clinical age-prediction maximal heart rate regression equations used to predict HRmax: HRmax = 220 – age, HRmax = 226 – age, and HRmax = 208 – (0.7 ∙ age). Fifty-two participants in total, 30 of which were in the active group (15 M, 15 F) and 22 subjects in the sedentary group (9 M, …


Validation Of A 5k Age And Weight Run Handicap Model, Paul M. Vanderburgh, Lloyd L. Laubach Mar 2015

Validation Of A 5k Age And Weight Run Handicap Model, Paul M. Vanderburgh, Lloyd L. Laubach

Paul M. Vanderburgh

Though increasing age and body weight (BW) have been widely known to be associated with slower distance run times, the common convention in 5K road races is to categorize competitors by age and, sometimes, BW. This has the disadvantage of assigning only small numbers of competitors to age categories and giving advantage to runners close to the minimum age or BW values allowable. Using recent advances in the modeling of distance run performance by BW combined with empirical evidence quantifying the independent effect of age on cardiovascular endurance, we previously published the derivation of the 5K Handicap (5KH), an age …


Visceral Fat Prediction Models According To Age And Gender, Serena Chang Feb 2015

Visceral Fat Prediction Models According To Age And Gender, Serena Chang

International Journal of Exercise Science: Conference Proceedings

Obesity is the leading risk factor for metabolic syndrome and puts individuals at an increased risk for cardiovascular disease and diabetes.Past studies have shown that visceral adipose tissue (VAT), rather than subcutaneous fat (SF), is a major predictor of these disorders.VAT is the fatty tissue surrounding the vital organs, while SF is the fat found directly beneath the skin. SF’s primary function is to provide energy storage while VAT cells are metabolically active and have been linked to increased insulin resistance, production of triglycerides and low density lipolipids, which contribute to a higher risk of health diseases.Due to lack of …


The Relationship Of Female Physical Attractiveness To Body Fatness, Guanlin Wang, Kurosh Djafarian, Chima A. Egedigwe, Asmaa El Hamdouchi, Robert Ojiambo, Harris Ramuth, Sandra Johanna Wallner-Liebmann, Sonja Lackner, Adama Diouf, Justina Sauciuvenaite, Catherine Hambly, Lobke M. Vaanholt, Mark D. Faries, John R. Speakman Jan 2015

The Relationship Of Female Physical Attractiveness To Body Fatness, Guanlin Wang, Kurosh Djafarian, Chima A. Egedigwe, Asmaa El Hamdouchi, Robert Ojiambo, Harris Ramuth, Sandra Johanna Wallner-Liebmann, Sonja Lackner, Adama Diouf, Justina Sauciuvenaite, Catherine Hambly, Lobke M. Vaanholt, Mark D. Faries, John R. Speakman

Faculty Publications

Aspects of the female body may be attractive because they signal evolutionary fitness. Greater body fatness might reflect greater potential to survive famines, but individuals carrying larger fat stores may have poor health and lower fertility in non-famine conditions. A mathematical statistical model using epidemiological data linking fatness to fitness traits, predicted a peaked relationship between fatness and attractiveness (maximum at body mass index (BMI) = 22.8 to 24.8 depending on ethnicity and assumptions). Participants from three Caucasian populations (Austria, Lithuania and the UK), three Asian populations (China, Iran and Mauritius) and four African populations (Kenya, Morocco, Nigeria and Senegal) …


Assessing Multi-Unit Muscle Sympathetic Nerve Activity Across Groups: A Multivariate Approach To A Multivariate Concept, Danielle N. Brewer Jun 2013

Assessing Multi-Unit Muscle Sympathetic Nerve Activity Across Groups: A Multivariate Approach To A Multivariate Concept, Danielle N. Brewer

Electronic Thesis and Dissertation Repository

Baseline muscle sympathetic nerve activity (MSNA) comparisons of age (young & old, n=40) and cardiovascular disease (CVD) state (young: Y, old: O, metabolic syndrome: MET, coronary artery disease: CAD, chronic heart failure: CHF, n= 36) groups were made to assess which MSNA variable(s) best describe group differences using a MANOVA-based approach across 10 variables. The hypothesis that action potential (AP) variables would better discriminate between groups than integrated variables was not supported. Burst frequency and incidence together significantly differentiated between groups with variability attributed to spikes/min and spikes/100hb removed. Significant group differences were noted for these variables such that Y


Happiness As A Function Of Exercise Training Impulse, Training Frequency And Age In Adults, Jeffrey C. John Dec 2009

Happiness As A Function Of Exercise Training Impulse, Training Frequency And Age In Adults, Jeffrey C. John

Culminating Projects in Kinesiology

The purpose of this study was to examine the relationship between happiness and three independent variables: training impulse (TRIMP), age and frequency of exercise. Measurement of each subject's happiness level was ascertained by the General Social Survey (GSS). This GSS happiness questionnaire is scored using a 1-10 rating scale. In this study TRIMP was defined as the product of the duration of training performed in one session and the perceived exertion during that exercise session. The respondents' exercise sessions ranged from no exercise to regularly scheduled exercise sessions ranging from 10-60+ minutes. Most respondents engaging in regular exercise sessions participated …


Validation Of A 5k Age And Weight Run Handicap Model, Paul M. Vanderburgh, Lloyd L. Laubach Dec 2006

Validation Of A 5k Age And Weight Run Handicap Model, Paul M. Vanderburgh, Lloyd L. Laubach

Health and Sport Science Faculty Publications

Though increasing age and body weight (BW) have been widely known to be associated with slower distance run times, the common convention in 5K road races is to categorize competitors by age and, sometimes, BW. This has the disadvantage of assigning only small numbers of competitors to age categories and giving advantage to runners close to the minimum age or BW values allowable. Using recent advances in the modeling of distance run performance by BW combined with empirical evidence quantifying the independent effect of age on cardiovascular endurance, we previously published the derivation of the 5K Handicap (5KH), an age …


A Comparison Of Youth Participation Motives In Organized Sports, Kirsty L. Carrihill Jan 2003

A Comparison Of Youth Participation Motives In Organized Sports, Kirsty L. Carrihill

Legacy ETDs

Youth participation in organized physical activity has increased by more than 5 million in the last decade (Smith & Smoll, 2002). Of the 48 million youth 8 to 16 years old in the United States, 20 million participated in organized sport (Gould & Petlichkoff, 1998; Seefeldt & Ewing, 1997; Smith & Smoll, 2002). Currently, the average age for youth to begin participating in organized sports in, or outside of, school is 11 years old (Klint & Weiss, 1986; Smith & Smoll, 2002). Although participation rates have increased, there are significant numbers of youth who drop out of sport. Over one-third …


One-Week Stability Of Forearm Venous Outflow As Assessed By Venous Occlusion Plethysmography, Jennifer Pitre Ortego Jan 2002

One-Week Stability Of Forearm Venous Outflow As Assessed By Venous Occlusion Plethysmography, Jennifer Pitre Ortego

LSU Master's Theses

The aim of this study was to test short-term and long-term reliability of venous outflow (VO) indices using the venous occlusion plethysmography technique. A secondary purpose was to compare venous measures to age, gender and various anthropometrical measures. The study group consisted of apparently healthy males and females, aged 18 to 80 years. Venous indices were under measures on two occasions (1 week apart), under the conditions of rest and following 5 min of upper arm occlusion. Venous outflow measures were calculated from the area under the curve (AUC) as well as the plethysmographic curve technique at the time .5 …


Quadriceps Strengthening Daily Adjustable Progressive Resistance Exercise (Dapre) Technique Versus Delorme's Progressive Resistive Exercises (Pre) Techniques, Paul R. Cleveland Jan 1994

Quadriceps Strengthening Daily Adjustable Progressive Resistance Exercise (Dapre) Technique Versus Delorme's Progressive Resistive Exercises (Pre) Techniques, Paul R. Cleveland

Legacy ETDs

The purpose of this study was to determine if the DAPRE technique would significantly improve strength in the non dominant quadriceps muscle as opposed to Delorme's PRE technique for strengthening. Using a pretest posttest Cybex II strength test and applying a t-test for independent samples, it was found that after four weeks there was no significant difference between Group A (N=10) who exercised using Delorme's technique and Group B (N=10) who used the DAPRE technique It was concluded that possibly because of the low sample number, the short length of the exercise intervention, and using normal healthy subjects instead of …


Age Differences In The Maintenance And Restructuring Of Movement Preparation, Paul Amrhein, George Stelmach, Noreen Goggin Sep 1991

Age Differences In The Maintenance And Restructuring Of Movement Preparation, Paul Amrhein, George Stelmach, Noreen Goggin

Department of Psychology Faculty Scholarship and Creative Works

In 2 experiments, 56 elderly (aged 65–78 yrs) and young Ss (aged 20–28 yrs) performed simple reaction time (RT), choice RT, and movement plan restructuring tasks, using a stimulus precuing paradigm. In Exp 1, the precue display (200 ms) and preparation interval (250, 500, 750, or 1,000 ms) were experimentally determined. In Exp 2, the precue display interval was S determined. For the restructuring task, the precue specified the response on 75% of the trials, enabling movement plan preparation with respect to movement parameters of arm and direction. On remaining trials, the precue incorrectly specified the response, requiring movement plan …