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Full-Text Articles in Education
Paroxysmal Atrial Fibrillation In A Life-Long Endurance Athlete: A Descriptive Case Study, Timothy Curry, Scott N. Drum
Paroxysmal Atrial Fibrillation In A Life-Long Endurance Athlete: A Descriptive Case Study, Timothy Curry, Scott N. Drum
International Journal of Exercise Science: Conference Proceedings
The diagnosis of atrial fibrillation (AF) in lifelong endurance athletes occurs at a greater incidence over a lifetime vs the undertrained, general population. In fact, the more intense an aerobic-oriented person trains or races and over a greater amount of time, the higher the diagnosis of general cardiac arrhythmias. PURPOSE: Therefore, the primary aim was to observe the cumulative effects of life-long endurance training (since the age of 10-yrs old) and the yearly occurrences of paroxysmal AF (PAF) in an otherwise healthy, 53-yr-old male. METHODS: The complete health history of a 53-yr-old male (ht: 1.83 m, wt: 72.7 kg, …
Continuous Leg Cycling Ergometry Prescribed At Identical Relative Power Output Elicits Different Physiological Responses Versus Arm Cycle Ergometry, Tanner M. Robson, David W. Mcmillan, Todd A. Astorino Facsm
Continuous Leg Cycling Ergometry Prescribed At Identical Relative Power Output Elicits Different Physiological Responses Versus Arm Cycle Ergometry, Tanner M. Robson, David W. Mcmillan, Todd A. Astorino Facsm
International Journal of Exercise Science: Conference Proceedings
PURPOSE: The aim of this study was to compare physiological and perceptual responses to progressive moderate intensity continuous exercise (MICE) between leg (LCE) and arm cycle ergometry (ACE). METHODS: Seventeen active men and women (age and percent body fat = 26 ± 7 yr and 18 ± 3 %) initially performed graded exercise on each modality to assess maximal oxygen uptake (VO2max) and peak power output (PPO). Using a randomized crossover design, they subsequently performed 45 min of MICE consisting of three 15 min bouts at 20, 40, and 60 % PPO on each modality. Gas exchange data (VO2, VCO2, …
Creatine Supplementation Improves Performance Without Deleterious Cardiovascular Parameters In Trained Females, Citlaly Jauregui, Steven B. Machek, Katia Azevedo, Warleyson Azevedo, Jeffrey Willardson, Marco Machado
Creatine Supplementation Improves Performance Without Deleterious Cardiovascular Parameters In Trained Females, Citlaly Jauregui, Steven B. Machek, Katia Azevedo, Warleyson Azevedo, Jeffrey Willardson, Marco Machado
International Journal of Exercise Science: Conference Proceedings
Creatine monohydrate supplementation is broadly substantiated to elicit both favorable ergogenic and health-associated advantages amidst vast demographics. Nevertheless, its impacts on human cardiovascular outcomes are hitherto undescribed in generally healthy populations. Furthermore, females are largely underrepresented in the ergogenic creatine literature and their potentially differential cardiovascular responses are unknown. PURPOSE: to determine whether young, healthy females would glean discernible hypertrophy and enhanced performance, commensurate to favorable post-resistance training cardiovascular parameters and relative to placebo-matched controls across a four week training timeline. METHODS: Twenty-eight resistance trained women (25.5±6.1 years) were randomly assigned to supplement creatine monohydrate (CRE; 5g creatine monohydrate …
Developing A Predictive Model For Vo2max In Middle-Distance Track And Field Athletes, Nicole Vargas, Patricia Vanoosbree, Kristyne Wiegand
Developing A Predictive Model For Vo2max In Middle-Distance Track And Field Athletes, Nicole Vargas, Patricia Vanoosbree, Kristyne Wiegand
International Journal of Exercise Science: Conference Proceedings
Purpose: Aerobic capacity is an indicator of an athlete’s endurance and a key predictor of performance. The greater the aerobic capacity, the more oxygen available for working muscles, leading to delays in lactate buildup, thus increasing the potential for successful performance. Studies have investigated non-exercise and/or submaximal exercise measures to predict aerobic capacity, but few have analyzed the combination of maximal exercise and non-exercise measures in Division-3 runners. Therefore, the purpose of this pilot study is to determine the predictive ability of heart rate (HRmax), ventilation (VE), respiratory quotient (RQ), and rate of perceived exertion (RPE) on VO …
Heart Rate And Blood Pressure Recovery Responses To Different Modes Of Recovery Following Moderate Intensity Exercise In Females, Emily L. Zumbro, Greg A. Ryan, Stephen J. Rossi, John Dobson
Heart Rate And Blood Pressure Recovery Responses To Different Modes Of Recovery Following Moderate Intensity Exercise In Females, Emily L. Zumbro, Greg A. Ryan, Stephen J. Rossi, John Dobson
International Journal of Exercise Science: Conference Proceedings
Heart rate (HR) and blood pressure (BP) increases during exercise to meet metabolic demands through parasympathetic nervous system (PNS) withdrawal and sympathetic nervous system (SNS) stimulation. Heart rate recovery (HRR) and blood pressure recovery (BPR) following exercise are both important factors related to cardiovascular health. PURPOSE: The purpose of this study was to examine the effects of a slow-breathing technique compared to other forms of recovery on HRR and BPR following moderate-intensity exercise. METHODS: Nine moderately-active (20.22 ± 0.97 years) female participants cycled at 70% of their heart rate maximum (HRmax) on a cycle ergometer for …
Increasing Vertical Jump Height Using Two Alternative Post-Activation Potentiation Methods, Itzel N. De La Torre, Samuel Montalvo, Daniel Conde, Gabriel Mejia, Sandor Dorgo
Increasing Vertical Jump Height Using Two Alternative Post-Activation Potentiation Methods, Itzel N. De La Torre, Samuel Montalvo, Daniel Conde, Gabriel Mejia, Sandor Dorgo
International Journal of Exercise Science: Conference Proceedings
Post-Activation Potentiation (PAP) is an exercise concept involving maximal muscular contraction to improve subsequent a dynamic contraction. An effective PAP method is one based on a balanced state of physical readiness and fatigue. Fatigued muscles reduce muscle performance. However, non-fatiguing muscular contractions at high loads with short duration can enhance muscle performance. Heart Rate (HR) can be used as an indicator of exercise readiness and fatigue. Additionally Heart Rate Percentage (HR %) was used as an indicator of readiness. PURPOSE: To assess the feasibility of using Heart Rate Percentage (HR%) as a readiness indicator during a back-squat PAP method. …
The Effects Of Two Post-Activation Potentiation Methods On Muscular Activation, Ileana A. Jarquin, Samuel Montalvo, Daniel Conde, Gabriel Ibarra-Mejia, Sandor Dorgo
The Effects Of Two Post-Activation Potentiation Methods On Muscular Activation, Ileana A. Jarquin, Samuel Montalvo, Daniel Conde, Gabriel Ibarra-Mejia, Sandor Dorgo
International Journal of Exercise Science: Conference Proceedings
Post Activation Potentiation (PAP) is an exercise concept based on utilizing a maximal voluntary contraction of the muscles at task to potentiate a dynamic muscular contraction of the same muscles. It is well established that PAP is modulated between performance readiness and muscular fatigue. Heart Rate percentage (HR%) has been used as an indicator of performance readiness and muscular fatigue. PURPOSE: To examine different muscular activation (μV) in response to two different PAP protocols during the vertical jump exercise. METHODS: 8 participants (5 males and 3 females; mean ± SD: Age = 22.6 ± 1.76 years; Height …
Augmented Mechanoreflex In Type 2 Diabetic Rats: Piezo Channels, An Important Part Of The Puzzle?, Ann-Katrin Grotle, Yu Huo, Audrey J. Stone
Augmented Mechanoreflex In Type 2 Diabetic Rats: Piezo Channels, An Important Part Of The Puzzle?, Ann-Katrin Grotle, Yu Huo, Audrey J. Stone
International Journal of Exercise Science: Conference Proceedings
Type 2 diabetics (T2DM) have an abnormal cardiovascular response to exercise. The exercise pressor reflex, which is evoked by metabolic and mechanical stimuli arising from the contracting muscle, is a critical cardiovascular regulatory mechanism during exercise and is exaggerated in hypertension, heart failure, and peripheral artery disease. A recent study found that T2DM patients have an augmented metaboreflex. However, whether the mechanoreflex is also augmented in T2DM is not known. PURPOSE: The purpose of the study was to test whether the mechanoreflex is exaggerated in T2DM. Furthermore, we tested the contribution of mechano-gated Piezo 1 and 2 channels to …