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Full-Text Articles in Physiology
Influence Of Ambient Temperature On Autonomic Nerve Function And Peripheral Sensation From Moderate-Intensity Treadmill Exercise, Sunao Wada, Mh Mahbub, Natsu Yamaguchi, Ryosuke Hase, Tsuyoshi Tanabe
Influence Of Ambient Temperature On Autonomic Nerve Function And Peripheral Sensation From Moderate-Intensity Treadmill Exercise, Sunao Wada, Mh Mahbub, Natsu Yamaguchi, Ryosuke Hase, Tsuyoshi Tanabe
International Journal of Exercise Science
International Journal of Exercise Science 17(2): 491-503, 2024. Objective: The main objective was to ascertain the acute responses in autonomic nervous activity and peripheral sensation induced by moderate-intensity treadmill exercise performed under different ambient temperatures. Methods: Twelve young healthy subjects underwent three sessions of moderate-intensity treadmill exercise (warming, 5 min and running, 25 min), on different days under 10°C, 20°C and 30°C room temperatures. Pre- and post-intervention, heart rate variability (HRV) and plantar vibrotactile perception threshold (VPT) were measured. Additionally, rate of perceived exertion (RPE) was recorded after intervention. Results: In comparison with the corresponding baseline values, after intervention, low …
Physical Characteristics, Movement Pattern And Heart Rate Response Of Indian Cricketers During Batting In Twenty20 (T20) Matches, Subhashis Biswas, Rupayan Bhattacharya, Arnab Das
Physical Characteristics, Movement Pattern And Heart Rate Response Of Indian Cricketers During Batting In Twenty20 (T20) Matches, Subhashis Biswas, Rupayan Bhattacharya, Arnab Das
International Journal of Exercise Science
International Journal of Exercise Science 16(6): 1413-1425, 2023. The study aims to provide a morphological profile of Indian cricketers and find physiological demands and positional differences of the batsmen in T20 matches according to their batting order. Eighty-three male cricketers (age: 17.93 ± 2.23 years) participated in this study and categorized into upper-order (n = 36), middle-order (n = 35) and lower-order (n = 12) batsmen. Height, weight, body fat%, and somatotype were measured. Movement analysis and heart rate (HR) responses were recorded during batting in T20 matches using PolarV800 smart-watch and H7 HR sensor. Descriptive statistics, …
Effects Of An Isotonic Medinilla Speciosa During And After Exercise, Nur Azis Rohmansyah, Fafa Nurdyansyah, Ashira Hiruntrakul, Mancharee Phumphitarkpanya
Effects Of An Isotonic Medinilla Speciosa During And After Exercise, Nur Azis Rohmansyah, Fafa Nurdyansyah, Ashira Hiruntrakul, Mancharee Phumphitarkpanya
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 1269-1283, 2023. Maintaining an adequate fluid balance is crucial during extended physical activity. It is currently unknown how drinking an isotonic medinilla speciosa beverage affects the autonomic regulation of heart function during and after exercise. The purpose of this study is to examine how drinking isotonic beverages affects heart rate variability (HRV) during and after intense exercise. A maximal exercise test to assess protocol loading, a control group, and an experimental group were all carried out by twenty-one young man (19.3 ± 1.2 years) over the course of three distinct protocols, with a 48-hour …
Cardiovascular Responses To Unilateral, Bilateral, Upper, And Lower Limbs Resistance Exercises, Jean L. S. De Oliveira, Leonardo C. R. Lima, Renan V. Barreto, Witalo Kassiano, José De O. V. Neto, Júlio C. C. N. Filho, Túlio Banja, Robson S. De Matos, Cláudio De O. Assumpção
Cardiovascular Responses To Unilateral, Bilateral, Upper, And Lower Limbs Resistance Exercises, Jean L. S. De Oliveira, Leonardo C. R. Lima, Renan V. Barreto, Witalo Kassiano, José De O. V. Neto, Júlio C. C. N. Filho, Túlio Banja, Robson S. De Matos, Cláudio De O. Assumpção
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 1154-1164, 2023. The effects of different resistance exercises on cardiovascular responses remain elusive. Therefore, the present study aimed to investigate acute cardiovascular responses to unilateral and bilateral upper and lower limb resistance exercise. Young healthy males (n = 22; 26.9 ± 5.4 years, 170.0 ± 6.0 cm, 77.0 ± 10.8 kg) participated in the present study. Four experimental sessions were carried out, each consisting of one of the four exercises: unilateral and bilateral knee extension, unilateral and bilateral biceps curl. Cardiovascular responses (heart rate; HR, systolic blood pressure; SBP, and rate-pressure product; RPP) …
The Impact Of The Cold Pressor Test On Inter-Arm Differences In Blood Pressure, Alyssa C. Watts, Lauren A. Naylor, Michael E. Holmstrup, Brock T. Jensen
The Impact Of The Cold Pressor Test On Inter-Arm Differences In Blood Pressure, Alyssa C. Watts, Lauren A. Naylor, Michael E. Holmstrup, Brock T. Jensen
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 875-884, 2023. A large inter-arm difference (IAD+; ≥10mmHg between arms at rest) in blood pressure (BP) at rest is linked to cardiovascular risk, and exercise can change this difference. As mechanisms for IAD are elusive, unique physiological stimuli may provide insight towards a better understanding of this phenomenon. The cold pressor test (CPT) has a potent effect on BP and acts primarily through sympathetic nervous system (SNS) stimulation, though the effects of SNS stimulation on IAD are unknown. Therefore, the purpose of the present study was to examine the effects of the CPT on …
Effects Of Different Surfaces On Metabolic Cost During Repetitive Jumping: A Pilot Study, Scott Lyons, Kyle Reason, Danilo Tolusso, Ariel Weddle
Effects Of Different Surfaces On Metabolic Cost During Repetitive Jumping: A Pilot Study, Scott Lyons, Kyle Reason, Danilo Tolusso, Ariel Weddle
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 866-874, 2023. The purpose of this pilot study was to determine if there is a difference in metabolic cost when jumping on platforms of varying thickness, as well as whether a difference exists in metabolic cost between genders exists on the different platforms. Fourteen participants (seven males and seven females) completed three repetitive jumping trials on the DigiJump machine. Each trial was performed at a cadence of 120 jumps per minute and at a minimum height of 1/2” per jump. Trials were completed on platforms of 1/2”, 3/8”, and 1/4” thickness. Participants were instructed …
Cardiovascular Responses During Light-Intensity Aerobic Exercise With Varying Levels Of Limb Occlusion Pressures., William R. Vanwye, Alyssa M. Weatherholt, Lee J. Winchester, Johnny G. Owens, Micah Spears
Cardiovascular Responses During Light-Intensity Aerobic Exercise With Varying Levels Of Limb Occlusion Pressures., William R. Vanwye, Alyssa M. Weatherholt, Lee J. Winchester, Johnny G. Owens, Micah Spears
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 676-687, 2023. The study aimed to assess cardiovascular responses to low-intensity aerobic exercise with varying levels of limb occlusion pressures (LOP) in a healthy population of men and women 30 to 60 years. The study was a single-session repeated measures design. Thirty individuals completed the study. All subjects participated in a single bout of low-intensity cycling (30-39% HRR) with bilateral lower extremity (LE) BFR for four 5-minute stages [0% (No BFR), 40%, 60%, and 80% LOP] with a 2-minute active rest between stages (BFR pressure released). The subjects’ systolic blood pressure (SBP), diastolic blood …
Entropy Of Heart Rate On Self-Selected Interval Exercises In Older Women, Lucas E. R. Santos, Karla K. Dames, Edilaine S. D. De Oiliveira, Matheus S. S. Fernades, Tayrine O. Filgueira, Bruna M. S. Mesquita, Catarina F. C. X. M. De Souza, Eduardo Lattari, Tony M. Santos
Entropy Of Heart Rate On Self-Selected Interval Exercises In Older Women, Lucas E. R. Santos, Karla K. Dames, Edilaine S. D. De Oiliveira, Matheus S. S. Fernades, Tayrine O. Filgueira, Bruna M. S. Mesquita, Catarina F. C. X. M. De Souza, Eduardo Lattari, Tony M. Santos
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 525-537, 2023. Non-linear analyzes such as Approximated Entropy (ApEn) and Sample Entropy (SampEn) could show the adaptability of the autonomic nervous system in relation to the dynamic changes caused by exercise. The aims of the study were: a) Investigate the effects of different Self-Selected based Interval Exercises (SSIE) configurations on Heart Rate (HR) entropy; b) Determine whether the stimuli time promote different entropy responses; c) Observe whether exercises with passive self-selected recovery time (SSRT) promote different HR entropy responses compared to those with imposed time and active recovery; and d) Determine whether post-training entropy …
Heart Rate Variability As A Neuroautonomic Marker To Assess The Impact Of Karate Training – An Observational Pediatric Study, Puneet Bhattacharya Ms, Sridip Chatterjee, Samiran Mondal, Dilip Roy
Heart Rate Variability As A Neuroautonomic Marker To Assess The Impact Of Karate Training – An Observational Pediatric Study, Puneet Bhattacharya Ms, Sridip Chatterjee, Samiran Mondal, Dilip Roy
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 342-352, 2023. Habitual physical activity improves heart functions and parasympathetic tone; Karate training is considered as a moderate physical activity with rhythmical breathing patternology. Heart rate variability (HRV) is an electrophysiological tool which measures cardio autonomic homeostasis; is used in the present study as an indirect marker to measure neurocognitive development with karate training. The aim of the present study was to find out the impact of regular karate training on cardiac autonomic responses through Heart Rate Variability (HRV) between karate players and age-sex matched active controls. A total of 30 male school-going children …
Comparable Acute Metabolic Responses When Walking With Blood Flow Restriction And Walking With Load Carriage: Implication For Tactical Professionals, Nathan D. Dicks, Sean J. Mahoney, Allison M. Barry, Katie J. Lyman, Kyle J. Hackney
Comparable Acute Metabolic Responses When Walking With Blood Flow Restriction And Walking With Load Carriage: Implication For Tactical Professionals, Nathan D. Dicks, Sean J. Mahoney, Allison M. Barry, Katie J. Lyman, Kyle J. Hackney
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 304-314, 2023. The current study aimed to investigate exercise with blood flow restriction (BFR) as a low-intensity conditioning strategy in tactical professionals with load carriage. During the low-intensity exercise, researchers examined the acute metabolic responses from low-intensity BFR walking, walking with load carriage, and walking with BFR and load carriage. Twelve healthy adult males (age = 21.8 ± 1.5 yrs, height = 181.3 ± 7.2 cm, body mass = 84.4 ± 11.1 kg and BMI = 25.6 ± 2.6 kg.m2) completed five bouts of 3-min treadmill walking at 4.8 kmh …
Acute Blood Flow Responses To Varying Blood Flow Restriction Pressures In The Lower Limbs, Bjoern Hornikel, Keith S. Saffold, Jacob A. Mota, Michael R. Esco, Michael V. Fedewa, Stefanie A. Wind, Lee J. Winchester
Acute Blood Flow Responses To Varying Blood Flow Restriction Pressures In The Lower Limbs, Bjoern Hornikel, Keith S. Saffold, Jacob A. Mota, Michael R. Esco, Michael V. Fedewa, Stefanie A. Wind, Lee J. Winchester
International Journal of Exercise Science
International Journal of Exercise Science 16(2): 118-128, 2023. The purpose of this study was to investigate lower limb blood flow responses under varying blood flow restriction (BFR) pressures based on individualized limb occlusion pressures (LOP) using a commonly used occlusion device. Twenty-nine participants (65.5% female, 23.8 ± 4.7 years) volunteered for this study. An 11.5cm tourniquet was placed around participants’ right proximal thigh, followed by an automated LOP measurement (207.1 ± 29.4mmHg). Doppler ultrasound was used to assess posterior tibial artery blood flow at rest, followed by 10% increments of LOP (10-90% LOP) in a randomized order. All data were …
A Systematic Review Of The Effects Of Meditative And Mindful Walking On Mental And Cardiovascular Health, Dustin W. Davis, Bryson Carrier, Kyle Cruz, Brenna Barrios, Merrill Russen Landers, James W. Navalta
A Systematic Review Of The Effects Of Meditative And Mindful Walking On Mental And Cardiovascular Health, Dustin W. Davis, Bryson Carrier, Kyle Cruz, Brenna Barrios, Merrill Russen Landers, James W. Navalta
International Journal of Exercise Science
International Journal of Exercise Science 15(2): 1692-1734, 2022. Meditative and mindful exercise are types of physical exercise during which people pay attention, on purpose, to each new present moment without judging their experience. The goal is to apply an accepting awareness of the environment, bodily sensations, thoughts, and emotions without labeling them (e.g., good or bad). The literature centers on qigong, tai chi, and yoga, which are types of mindful exercise that improve mental and cardiovascular health. It is unclear if meditative and mindful walking also improve these health domains. To the authors’ knowledge, this question has not been addressed …
Differences In Rate Of Perceived Exertion And Workload Intensity In Males And Females During Submaximal Arm And Leg Ergometry, Konrad J. Dias, Amanda Mungenast, Stephanie Sherwood, Patrick Mcpherson, Allison Verville, Shannon Eaton, Dustin Nadler
Differences In Rate Of Perceived Exertion And Workload Intensity In Males And Females During Submaximal Arm And Leg Ergometry, Konrad J. Dias, Amanda Mungenast, Stephanie Sherwood, Patrick Mcpherson, Allison Verville, Shannon Eaton, Dustin Nadler
International Journal of Exercise Science
International Journal of Exercise Science 15(4): 1222-1235, 2022. Purpose: Arm ergometry (AE) is necessitated for individuals unable to perform leg ergometry (LE) exercise. This study explored gender differences in RPE and workload (WL) during AE and LE at submaximal target heart rates (THR). Methods: 35 healthy college-aged individuals were randomly allocated to begin exercise on either AE or LE. Participants exercised on both modes with increasing WL to achieve submaximal THRs of 110, 120, 130, 140 and 150 beats per minute (bpm). Factorial ANOVAs tested for differences in RPE and WL. Results: No significant differences were found in RPE between …
Sex Differences In Measures Of Wave Reflection And Aortic Arterial Stiffness In Response To Weight Machine Resistance Exercise, Emily K. Erb, Stacie Humm, Sarah Kearney, Anthony G. Pinzone, Michelle A. Kern, J. Derek Kingsley
Sex Differences In Measures Of Wave Reflection And Aortic Arterial Stiffness In Response To Weight Machine Resistance Exercise, Emily K. Erb, Stacie Humm, Sarah Kearney, Anthony G. Pinzone, Michelle A. Kern, J. Derek Kingsley
International Journal of Exercise Science
International Journal of Exercise Science 15(2): 1190-1201, 2022. While it has been demonstrated that acute resistance exercise (RE) alters measures of wave reflection and aortic arterial stiffness in young, healthy individuals, limited research has evaluated sex differences. Accordingly, we recruited moderately active, resistance-trained men (Age: 22 ± 3yrs, n=12) and women (23 ± 3yrs, n=10) to perform two randomized conditions consisting of an acute bout of weight machine RE or a quiet control (CON). Measures of aortic wave reflection and aortic stiffness were taken at baseline and 15 minutes following the RE (Recovery). At baseline, women had significantly higher heart …
Impact Of Acute Uninterrupted Sitting On Cerebrovascular Hemodynamics, Raymond Jones, Dominique Mcarthur, Stephanie Mccoy, Lee Stoner, Simon Fryer, Daniel P. Credeur
Impact Of Acute Uninterrupted Sitting On Cerebrovascular Hemodynamics, Raymond Jones, Dominique Mcarthur, Stephanie Mccoy, Lee Stoner, Simon Fryer, Daniel P. Credeur
International Journal of Exercise Science
International Journal of Exercise Science 15(2): 1156-1167, 2022. Reductions in brain blood flow are associated with reduced cognitive function and cerebrovascular disease. Acute periods of uninterrupted sitting can lead to endothelial dysfunction, namely due to a reduction in shear stress and subsequent reduction in nitric oxide bioavailability. Little is known of the impact of sitting on brain health. The purpose was to determine the total brain blood flow response following a 60-minute bout of uninterrupted sitting. Using a parallel design, this study evaluated the impact of 60-minutes of sitting on total brain blood flow. Fifteen participants (n=15; age=24 ± …
Aerobic Performance Detriments While Wearing A Face Mask Diverge Among Males And Females, Jose M. Moris, Yunsuk Koh
Aerobic Performance Detriments While Wearing A Face Mask Diverge Among Males And Females, Jose M. Moris, Yunsuk Koh
International Journal of Exercise Science
International Journal of Exercise Science 15(2): 1105-1116, 2022. The current study examined the impact of wearing a face mask (FM) at rest and while exercising on cardiorespiratory variables and aerobic performance between males and females. Nine males (21.4 ± 0.5 yr) and 9 females (21.8 ± 3.6 yr) performed a pulmonary function test and a graded maximal exercise test (GXT) on a treadmill with an FM and without an FM in random order. During the GXT, cardiorespiratory variables were measured at different exercise intensities (rest, 40%, 55%, 70%, 80%, 100% of VO2max) and during recovery. Regardless of sex, …
Post-Exercise Arterial Stiffness Responses Are Similar After Acute Eccentric And Concentric Arm Cycling, Travis R. Wakeham, Dakota J. Anderson, Steven J. Elmer, John J. Durocher
Post-Exercise Arterial Stiffness Responses Are Similar After Acute Eccentric And Concentric Arm Cycling, Travis R. Wakeham, Dakota J. Anderson, Steven J. Elmer, John J. Durocher
International Journal of Exercise Science
International Journal of Exercise Science 15(2): 884-895, 2022. Upper-body resistance exercise effectively increases muscular strength, but may concomitantly increase arterial stiffness. Eccentric exercise can lead to muscle soreness and arterial stiffness in untrained participants. However, it is unclear if upper-body eccentric exercise could reduce arterial stiffness in a single session for participants that have undergone progressive training. Our purpose was to compare acute responses to upper-body eccentric (novel, ECCarm) and concentric (traditional, CONarm) steady state arm cycling. We hypothesized that arm arterial stiffness would be reduced after both ECCarm and CONarm. Twenty-two young healthy individuals performed either ECCarm (n …
Is It Safe For Hemodialysis Patients To Seek Gains With Less Pain? Acute Hemodynamic Response To Intradialytic Blood Flow Restriction Training, Rony Nobre, Rodrigo Cardoso, Aline Araujo, Rafael Orcy, Jeniffer Aquino, Larissa Ribeiro, Rafaela Catto, Ana Carolina Conteratto, Airton Rombaldi, Maristela Bohlke
Is It Safe For Hemodialysis Patients To Seek Gains With Less Pain? Acute Hemodynamic Response To Intradialytic Blood Flow Restriction Training, Rony Nobre, Rodrigo Cardoso, Aline Araujo, Rafael Orcy, Jeniffer Aquino, Larissa Ribeiro, Rafaela Catto, Ana Carolina Conteratto, Airton Rombaldi, Maristela Bohlke
International Journal of Exercise Science
International Journal of Exercise Science 15(2): 434-441, 2022. Considering that the hemodynamic safety is a major concern about intradialytic exercise with blood flow restriction, this analysis was performed to compare the blood pressure (BP) behavior during the first two hours of hemodialysis (HD) between sessions with no exercise (control group, CG), low/moderate intensity aerobic exercise with blood flow restriction (BFRE) and conventional aerobic exercise (AE). Adult patients with chronic kidney disease on HD at a university hospital were randomly assigned and submitted to a 12-week intradialytic training with BFRE or AE compared with the CG group. The main outcomes of …
Behavior Change Trajectories And Metabolic Syndrome Risk Factor Clustering During The Transition To College: A Feasibility Pilot Study, Alexandra N. Smith, Lauren Q. Higgins, Simon Higgins
Behavior Change Trajectories And Metabolic Syndrome Risk Factor Clustering During The Transition To College: A Feasibility Pilot Study, Alexandra N. Smith, Lauren Q. Higgins, Simon Higgins
International Journal of Exercise Science
International Journal of Exercise Science 15(5): 125-141, 2022. Metabolic syndrome (MetS) is typically diagnosed in adults; however, MetS risk factors are growing in prevalence during youth and young adulthood. Though the transition from high school to college is associated with adverse changes in lifestyle behaviors that may contribute to MetS risk factor development, the relationship between pre-college MetS risk status and transition-related behavior change is unknown. This prospective study aimed to describe the relationship between pre-college MetS risk status and transition-related behavior change trajectories in college-bound students. Moreover, it aimed to assess the feasibility of the study design, including acceptability …
Effects Of Low Dose Caffeine On Post-Exercise Heart Rate Variability: A Double-Blind Placebo-Controlled Trial, Cagney T. Sargent, Tareq K. Shahbal, Andres E. Carrillo, Tania Amorim, Jason R. Edsall, Emily J. Ryan, Edward J. Ryan
Effects Of Low Dose Caffeine On Post-Exercise Heart Rate Variability: A Double-Blind Placebo-Controlled Trial, Cagney T. Sargent, Tareq K. Shahbal, Andres E. Carrillo, Tania Amorim, Jason R. Edsall, Emily J. Ryan, Edward J. Ryan
International Journal of Exercise Science
International Journal of Exercise Science 15(2): 103-112, 2022. Caffeine may impact post-exercise heart rate variability (HRV); although, studies have yielded inconsistent findings. We examined the effects of low dose caffeine on post-exercise HRV. Healthy, college-aged adults [n = 18; age: 22.1 ± 2.6 years; BMI: 26.9 ± 4.3 kg/m2; estimated maximal oxygen consumption (VO2max): 45.1 ± 8.3 ml∙kg-1∙min-1] participated in a repeated-measures, double-blind, placebo-controlled trial. During the experimental trials, participants were fitted with a heart rate monitor and a mouthpiece with a one-way nonrebreathing valve and then rested for 10 min …
Acute Changes In Arterial Function Post High-Intensity Lower Extremity Cycling, Alyssa Weatherholt, William R. Vanwye, Jeffery L. Short, Alyssa A. Andreis, Guoyuan Huang
Acute Changes In Arterial Function Post High-Intensity Lower Extremity Cycling, Alyssa Weatherholt, William R. Vanwye, Jeffery L. Short, Alyssa A. Andreis, Guoyuan Huang
International Journal of Exercise Science
International Journal of Exercise Science 14(2): 1363-1374, 2021. The purpose of this study was to assess the acute arterial blood flow velocity of the lower extremity (LE) immediately after a bout of high-intensity LE cycling exercise. Twenty-eight healthy males (n = 14) and females (n = 14) aged 20.9 ± 1.7 years participated in this study. All subjects performed a single bout of high-intensity cycling (70% of HRR) for 45 min. The subjects' LE blood flow velocity, heart rate (HR), systolic blood pressure (SBP), and oxygen saturation (SpO2) were measured at rest, immediately post-, post-15 min., …
Remote Ischemic Preconditioning Does Not Improve The Six Minutes Walk Test Performance In Chronic Heart Failure Patients: A Randomised Pilot Trial, Sarah-Maude Martin, Francois Lalonde, Elise Legault, Paula Ribeiro, Alain Steve Comtois, François Tournoux
Remote Ischemic Preconditioning Does Not Improve The Six Minutes Walk Test Performance In Chronic Heart Failure Patients: A Randomised Pilot Trial, Sarah-Maude Martin, Francois Lalonde, Elise Legault, Paula Ribeiro, Alain Steve Comtois, François Tournoux
International Journal of Exercise Science
International Journal of Exercise Science 14(2): 1354-1362, 2021. Cycles of ischemia and reperfusion induced with a pressure cuff on a skeletal muscle, also know as remote ischemic preconditioning (RIPC), appears to improve performance in different time-trial events in healthy individuals. Our primary goal was to assess the effect of RIPC in heart failure (HF) patients’ functional capacity using the six-minute walk test (6MWT). A randomized crossover design comparing RIPC (4 x five-minutes of upper arm ischemia) to the SHAM procedure was done in 15 patients prior to a 6MWT. The primary outcome measure was the total distance walked in a …
Reverse Myocardial Remodeling In Hypertrophic Cardiomyopathy: Little Explored Benefit Of Exercise, Jefferson Petto, Edna C. De Oliveira, Raissa Va De Almeida, Alice M. De Oliveira, Danielly Sn Do Amaral, Bráulio Jb De Pinna Jr.
Reverse Myocardial Remodeling In Hypertrophic Cardiomyopathy: Little Explored Benefit Of Exercise, Jefferson Petto, Edna C. De Oliveira, Raissa Va De Almeida, Alice M. De Oliveira, Danielly Sn Do Amaral, Bráulio Jb De Pinna Jr.
International Journal of Exercise Science
International Journal of Exercise Science 14(2): 1018-1026, 2021. Hypertrophic cardiomyopathy (HCM) is an autosomal dominant disease that causes myocardial remodeling. Physical exercise (PE) is a therapeutic resource used in Supervised Cardiac Rehabilitation (SCR) to improve Quality of Life (QL), reducing cardiovascular morbidity and mortality. Therefore, the aim of this study is to report how SCR using a personalized exercise prescription, promoted Reverse Myocardial Remodeling (RMR), improved functionality and QL of a patient with HCM. This is a case report of a 43-year-old sedentary female patient with a Body Mass Index (BMI) of 24.7 kg/m2. The patient was diagnosed …
Training On A Lower Body Positive Pressure Treadmill With Body Weight Support Does Not Improve Aerobic Capacity, David K. Lee, Natalie Maltz, James Becker, Joshua A. Cotter
Training On A Lower Body Positive Pressure Treadmill With Body Weight Support Does Not Improve Aerobic Capacity, David K. Lee, Natalie Maltz, James Becker, Joshua A. Cotter
International Journal of Exercise Science
International Journal of Exercise Science 14(7): 829-839, 2021. This study examined the physiological changes resulting from training on a lower body positive pressure treadmill (LBPPT) at three different levels of body weight support (BWS). Thirty-three healthy college aged students (22.3 ± 3.1 years) completed the study. Participants performed a graded exercise test (GXT) to exhaustion and were placed into one of three experimental groups corresponding to 100%, 75%, and 50% of their normal BW. Participants trained at their experimental BW levels for eight-weeks. Training speed was monitored by heart rate (HR) and speed was adjusted to elicit approximately 60% of …
Cardiovascular And Muscular Response To No Load Exercise With Blood Flow Restriction, Wenyuan Zhu, Noam Yitzchaki, Tayla E. Kuehne, Ryo Kataoka, Kevin Mattocks, Samuel L. Buckner
Cardiovascular And Muscular Response To No Load Exercise With Blood Flow Restriction, Wenyuan Zhu, Noam Yitzchaki, Tayla E. Kuehne, Ryo Kataoka, Kevin Mattocks, Samuel L. Buckner
International Journal of Exercise Science
International Journal of Exercise Science 13(2): 1807-1818, 2020. Changes in muscle thickness (MT), isometric torque, and arterial occlusion pressure (AOP) were examined following four sets of twenty unilateral elbow flexion exercise. Participants performed four sets of maximal voluntary contractions with no external load throughout a full range of motion of a bicep curl with and without the application of blood flow restriction (BFR). For torque there was an interaction (p = 0.012). The BFR condition had lower torque following exercise (56.07 ± 17.78 Nm) compared to the control condition (58.67 ± 19.06 Nm). For MT, there was a main …
Use Of Heart Rate Index To Predict Oxygen Uptake – A Validation Study, Jie Kang, Nicholas A. Ratamess, Avery D. Faigenbaum, Jill A. Bush-Wallace, Christopher Roser, Devyn Montemarano, Hannah Mercado, Morgan Choma, Christian Mendez, Matthew Pollock
Use Of Heart Rate Index To Predict Oxygen Uptake – A Validation Study, Jie Kang, Nicholas A. Ratamess, Avery D. Faigenbaum, Jill A. Bush-Wallace, Christopher Roser, Devyn Montemarano, Hannah Mercado, Morgan Choma, Christian Mendez, Matthew Pollock
International Journal of Exercise Science
International Journal of Exercise Science 13(7): 1705-1717, 2020. An equation that uses heart rate index (HRI) defined as HR/HRrest to predict oxygen uptake (VO2) in METs (e.g., METs = 6 × HRI ‒ 5) has been developed retrospectively from aggregate data of 60 published studies. However, the prediction error of this model as used by an individual has not been established. Therefore, the purpose of this study was to examine the predictive validity of the HRI equation by comparing submaximal and maximal VO2 predicted by the equation (VO2-Pred) with that measured by indirect calorimetry (VO …
Physiological Responses To Counterweighted Single-Leg Cycling In Older Males, Phil Lascola, C. Eric Heidorn, Brandon Pollock, Keith Burns, John Mcdaniel
Physiological Responses To Counterweighted Single-Leg Cycling In Older Males, Phil Lascola, C. Eric Heidorn, Brandon Pollock, Keith Burns, John Mcdaniel
International Journal of Exercise Science
International Journal of Exercise Science 13(2): 1487-1500, 2020. Single-leg cycling (SLC) allows for a greater muscle specific exercise capacity and therefore provides a greater stimulus for metabolic and vascular adaptations compared to double-leg cycling (DLC). The purpose of this investigation was to compare the cardiovascular, peripheral, and metabolic responses of counterweighted (10kg) SLC to DLC in a healthy older male population. Eleven males (56-86 years) performed two cycling modalities consisting of DLC and SLC. For each modality, participants performed 4-minute cycling trials (60rpm) at three work rates (25, 50, 75W). Repeated measures ANOVAs and paired samples T-test (α=0.05) were used …
Esport: Fortnite Acutely Increases Heart Rate Of Young Men, Silvio Valladao, Jake Middleton, Thomas Andre
Esport: Fortnite Acutely Increases Heart Rate Of Young Men, Silvio Valladao, Jake Middleton, Thomas Andre
International Journal of Exercise Science
International Journal of Exercise Science 13(6): 1217-1227, 2020. Esports has rapidly increased in online play and viewing. A myriad of literature focuses on heart rate (HR) during traditional athletic competition, little research has addressed the HR responses of individuals playing esports and none in the esport: Fortnite. The purpose of this study was to compare the HR response during a 3-hour seated session of the esport: Fortnite to resting HR. Male college students (n = 23; age = 21 ± 1.8 years; BMI = 25.7 ± 3.9; Esport mean hours per week = 13 ± 8.7) were recruited to …
Physiological And Biomechanical Differences Between Seated And Standing Uphill Cycling, Quint N. Berkemeier, Brent W. Alumbaugh, Trevor Gillum, Jared Coburn, Jong-Kyung Kim, Michael Reeder, Chelsie A. Fechtner, Gerald A. Smith
Physiological And Biomechanical Differences Between Seated And Standing Uphill Cycling, Quint N. Berkemeier, Brent W. Alumbaugh, Trevor Gillum, Jared Coburn, Jong-Kyung Kim, Michael Reeder, Chelsie A. Fechtner, Gerald A. Smith
International Journal of Exercise Science
International Journal of Exercise Science 13(2): 996-1011, 2020. Despite differences in economy, cyclists climb in seated and standing positions. Prompted by gaps in research, we compared VO2 and heart rate (HR) (Study 1), muscle activation (Study 2) and breathing and pedaling entrainment (Study 3). METHODS: Subjects rode their bicycles on a treadmill in seated and standing positions. In Study 1, VO2 and HR of four male cyclists (21.3 ± 1.7 yrs; 69.1 ± 6 ml/kg/min) were collected, alternating positions every 5 minutes for 20 minutes (8 mph, 8% grade). In Study 2, muscle activations of eight male cyclists …
Evaluation Of Repetitive Jumping Intensity On The Digi-Jump Machine, T. Scott Lyons, James W. Navalta, Whitley J. Stone, Scott W. Arnett, Mark A. Schafer, Laura Igaune
Evaluation Of Repetitive Jumping Intensity On The Digi-Jump Machine, T. Scott Lyons, James W. Navalta, Whitley J. Stone, Scott W. Arnett, Mark A. Schafer, Laura Igaune
International Journal of Exercise Science
Cardiorespiratory endurance is an important element of aerobic fitness, particularly in weight management and reducing risk for cardiovascular disease. While there are numerous options for aerobic exercise, rope jumping is often overlooked. In addition to regular exercise and a healthy diet, the American Heart Association strongly recommends rope jumping. The first purpose of this study was to determine the steady state metabolic cost of repetitive jumping on the Digi-Jump machine to evaluate whether exercise on this device is more or less strenuous than similar exercise with a jump rope, as demonstrated in previous literature. A second purpose was to determine …