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Author: Cali A. Dunham
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
High-intensity interval training (HIT) has been utilized as a time-efficient strategy to induce numerous physiological adaptations and improve performance usually associated with "traditional" endurance training (ET). It is not known however, if HIT might lead to improvements in pulmonary function. Therefore we hypothesized that HIT would increase respiratory muscle strength and expiratory flow rates. Fifteen healthy subjects were randomly assigned to an ET group (n = 7) and a HIT group (n = 8). All subjects performed an incremental test to exhaustion (VO2 max) on a cycle ergometer prior to and after training. Standard pulmonary function tests, maximum inspiratory pressure (PImax), maximum expiratory pressure (PEmax), and maximal flow volume loops, were performed pre training and after each week of training. HIT subjects performed a four week training program on a cycle ergometer at 90% of their VO2 max final workload while the ET subjects performed exercise at 60-70% of their VO2 max final workload. All subjects trained three days/ week. The HIT group performed five one-minute bouts with three minute recovery periods and the ET group cycled for 45 minutes continuously at a constant workload. A five-mile time trial was performed prior to training, after two weeks of training, and after four weeks of training. Both groups showed similar (p0.05) increases in VO2 max (~8-10%) and improvements in time trials following training (HIT 6.5 " 1.3%, ET 4.4 " 1.8%) with no difference (p0.05) between groups. Both groups increased (p0.05) PImax post training (ET ~25%, HIT ~43%) with values significantly higher for HIT than ET. There was no change (p0.05) in expiratory flow rates with training in either group. These data suggest that whole body exercise training is effective in increasing inspiratory muscle strength with HIT leading to greater improvements than ET. Also, HIT offers a time-efficient alternative to ET in improving aerobic capacity and performance.
Author: Cali A. Dunham
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
High-intensity interval training (HIT) has been utilized as a time-efficient strategy to induce numerous physiological adaptations and improve performance usually associated with "traditional" endurance training (ET). It is not known however, if HIT might lead to improvements in pulmonary function. Therefore we hypothesized that HIT would increase respiratory muscle strength and expiratory flow rates. Fifteen healthy subjects were randomly assigned to an ET group (n = 7) and a HIT group (n = 8). All subjects performed an incremental test to exhaustion (VO2 max) on a cycle ergometer prior to and after training. Standard pulmonary function tests, maximum inspiratory pressure (PImax), maximum expiratory pressure (PEmax), and maximal flow volume loops, were performed pre training and after each week of training. HIT subjects performed a four week training program on a cycle ergometer at 90% of their VO2 max final workload while the ET subjects performed exercise at 60-70% of their VO2 max final workload. All subjects trained three days/ week. The HIT group performed five one-minute bouts with three minute recovery periods and the ET group cycled for 45 minutes continuously at a constant workload. A five-mile time trial was performed prior to training, after two weeks of training, and after four weeks of training. Both groups showed similar (p0.05) increases in VO2 max (~8-10%) and improvements in time trials following training (HIT 6.5 " 1.3%, ET 4.4 " 1.8%) with no difference (p0.05) between groups. Both groups increased (p0.05) PImax post training (ET ~25%, HIT ~43%) with values significantly higher for HIT than ET. There was no change (p0.05) in expiratory flow rates with training in either group. These data suggest that whole body exercise training is effective in increasing inspiratory muscle strength with HIT leading to greater improvements than ET. Also, HIT offers a time-efficient alternative to ET in improving aerobic capacity and performance.
Author: Zakaria A. Alyousif
Publisher:
ISBN:
Category : Asthma
Languages : en
Pages : 76
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Book Description
This study examined pulmonary function, ventilation, exercise tolerance and the fractional concentration of exhaled nitric oxide (FeNO) in healthy controls (CON; n=7) and asthmatics (ASTH; n=7) following two-weeks of high intensity interval training (HIIT). An increase in FeNO above basal levels is associated with lung inflammation and is gaining popularity as a reliable diagnostic tool for the treatment of asthma. PURPOSE: The extent that HIIT decreases FeNO and thus, exercise tolerance in asthmatic subjects has not been previously investigated. METHODS: Pulmonary function was assessed using peak expiratory flow [PEF], forced vital capacity [FVC], and the ratio of forced expiratory volume in one second to FVC [FEV1/FVC]. FeNO was measured noninvasively using a NIOX portable device. Both groups performed a progressive exercise test (20 W/min) on a cycle ergometer to determine peak values of O2 uptake (VO2peak), CO2 output (VCO2peak), ventilation (VE) and time to exhaustion (TTE). Each subject completed six sessions of HIIT, which included 8 minutes of loadless cycling warm-up, 10 x 60 s bouts of exercise interspersed with 60 s periods of recovery at a low intensity of cycling. The intensity of the HIIT protocol was set at a target equivalent to 75% peak WR for ASTH and 80% peak WR for CON. Each training session was followed by 5 minutes of loadless cycling cool down. Following completion of all HIIT sessions, each subject repeated the pulmonary and exercise tests that were performed prior to training. A two-way analysis of variance with repeated measures (ANOVA-RM) was used to examine main effects, group (CON vs. ASTH) and time (Pre- vs. Post-HIIT) and significant interactions (Group x Time). A Student Newman Kuels post hoc test was used to determine specific differences as appropriate. Statistical significance was set at p
Author: Madison Yurach pikaluk
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Laursen, Paul
Publisher: Human Kinetics
ISBN: 1492552127
Category : Sports & Recreation
Languages : en
Pages : 672
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Book Description
The popularity of high-intensity interval training (HIIT), which consists primarily of repeated bursts of high-intensity exercise, continues to soar because its effectiveness and efficiency have been proven in use by both elite athletes and general fitness enthusiasts. Surprisingly, few resources have attempted to explain both the science behind the HIIT movement and its sport-specific application to athlete training. That’s why Science and Application of High-Intensity Interval Training is a must-have resource for sport coaches, strength and conditioning professionals, personal trainers, and exercise physiologists, as well as for researchers and sport scientists who study high-intensity interval training.
Author: Neil Armstrong
Publisher: Karger Medical and Scientific Publishers
ISBN: 3805595506
Category : Medical
Languages : en
Pages : 214
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Book Description
A key resource for coaches, scientists and clinicians Sport is by its nature competitive and even during youth it is performed at different levels with elite young athletes at the top of the performance pyramid. A coordinated series of comprehensive, research-based reviews on factors underlying the performance of children and adolescents involved in competitive sport is presented in this volume. Leading exercise and sport scientists provide the latest information on the physiology of young elite athletes, the essential role of nutrition, and the effects of endurance, high-intensity and high-resistance training and overtraining as well as on the importance of laboratory and field-based monitoring of young athletes' performances. Further, thermoregulation and environmental factors that might affect performance are re-viewed. Finally, strategies for preventing sudden cardiac death and the diagnosis and management of common sport injuries in young athletes are discussed. The book provides up-to-date, evidence-based information for sports scientists, coaches, physiotherapists, pediatric sports medicine specialists, and other professionals involved in supporting elite young athletes.
Author: Alison McConnell
Publisher: Elsevier Health Sciences
ISBN: 0702054550
Category : Medical
Languages : en
Pages : 403
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Book Description
Respiratory Muscle Training: theory and practice is the world’s first book to provide an "everything-you-need-to-know" guide to respiratory muscle training (RMT). Authored by an internationally-acclaimed expert, it is an evidence-based resource, built upon current scientific knowledge, as well as experience at the cutting-edge of respiratory training in a wide range of settings. The aim of the book is to give readers: 1) an introduction to respiratory physiology and exercise physiology, as well as training theory; 2) an understanding of how disease affects the respiratory muscles and the mechanics of breathing; 3) an insight into the disease-specific, evidence-based benefits of RMT; 4) advice on the application of RMT as a standalone treatment, and as part of a rehabilitation programme; and finally, 5) guidance on the application of functional training techniques to RMT. The book is divided into two parts – theory and practice. Part I provides readers with access to the theoretical building blocks that support practice. It explores the evidence base for RMT as well as the different methods of training respiratory muscles and their respective efficacy. Part II guides the reader through the practical implementation of the most widely validated form of RMT, namely inspiratory muscle resistance training. Finally, over 150 "Functional" RMT exercises are described, which incorporate a stability and/or postural challenge – and address specific movements that provoke dyspnoea. Respiratory Muscle Training: theory and practice is supported by a dedicated website (www.physiobreathe.com), which provides access to the latest information on RMT, as well as video clips of all exercises described in the book. Purchasers will also receive a three-month free trial of the Physiotec software platform (via www.physiotec.ca), which allows clinicians to create bespoke training programmes (including video clips) that can be printed or emailed to patients. Introductory overviews of respiratory and exercise physiology, as well as training theory Comprehensive, up-to-date review of respiratory muscle function, breathing mechanics and RMT Analysis of the interaction between disease and respiratory mechanics, as well as their independent and combined influence upon exercise tolerance Analysis of the rationale and application of RMT to over 20 clinical conditions, e.g., COPD, heart failure, obesity, mechanical ventilation Evidence-based guidance on the implementation of inspiratory muscle resistance training Over 150 functional exercises that incorporate a breathing challenge www.physiobreathe.com - access up-to-date information, video clips of exercises and a three-month free trial of Physiotec’s RMT exercise module (via www.physiotec.ca)
Author: Global Initiative for Chronic Obstructive Lung Disease
Publisher: Createspace Independent Publishing Platform
ISBN: 9781986342223
Category :
Languages : en
Pages : 50
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Book Description
Chronic Obstructive Pulmonary Disease (COPD) represents an important public health challenge and is a major cause of chronic morbidity and mortality throughout the world. COPD is currently the fourth leading cause of death in the world1 but is projected to be the 3rd leading cause of death by 2020. More than 3 million people died of COPD in 2012 accounting for 6% of all deaths globally. Globally, the COPD burden is projected to increase in coming decades because of continued exposure to COPD risk factors and aging of the population.2 This Pocket Guide has been developed from the Global Strategy for the Diagnosis, Management, and Prevention of COPD (2018 Report), which aims to provide a non-biased review of the current evidence for the assessment, diagnosis and treatment of patients with COPD that can aid the clinician. Discussions of COPD and COPD management, evidence levels, and specific citations from the scientific literature are included in that source document, which is available from www.goldcopd.org. The tables and figures in this Pocket Guide follow the numbering of the 2018 Global Strategy Report for reference consistency.
Author: Joseph M. Flaherty
Publisher:
ISBN:
Category : Cardiopulmonary fitness
Languages : en
Pages : 254
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Book Description
Abstract: "Aerobic capacity relies on the integration of the respiratory, cardiovascular, and musculoskeletal systems. Of these, the lungs are said to be inadaptable to endurance training. However, since pulmonary diffusing capacity for nitric oxide (DLNO), an element of lung function is correlated with aerobic capacity, training that can improve aerobic capacity could also improve DLNO. Purpose: To investigate whether short term high intensity interval training (HIT) improves DLNO."--Abstract
Author: John E. Cotes
Publisher: John Wiley & Sons
ISBN: 1444312839
Category : Medical
Languages : en
Pages : 648
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Book Description
The only text to cover lung function assessment from first principles including methodology, reference values and interpretation New for this edition: - More illustrations to convey concepts clearly to the busy physician - Text completely re-written in a contemporary style: includes user-friendly equations and more diagrams - New material covering the latest advances in the treatment of lung function, including more on sleep-related disorders, a stronger clinical and practical bias and more on new techniques and equipment - Uses the standard Vancouver referencing system What the experts say: "I have always considered Dr Cotes' book the most authoritative book published on lung function. It is also the most comprehensive." —Dr Robert Crapo, Pulmonary Division, LDS Hospital, Salt Lake City, USA "I think I can fairly speak on behalf of staff in lung function departments the length and breadth of the country - that a sixth edition of Cotes would be gratefully received." —Dr Brendan Cooper, Clinical Respiratory Scientist, Nottingham City Hospital
Author: Yishan Xie
Publisher:
ISBN: 9781361021057
Category :
Languages : en
Pages :
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Book Description
This dissertation, "High Intensity Interval Training and Health Outcomes: a Systematic Review" by Yishan, Xie, 谢易珊, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstractofprojectentitled HighIntensityIntervalTrainingandHealthOutcomes: ASystematicReview Submittedby XIEYishan FortheDegreeofMasterofPublicHealthatTheUniversityofHongKong InAugust2015 Background Highintensityintervaltraining, orhighintensityintermittenttraining(HIIT), isregardedasa time-efficientworkouttoincreasethemaximumoxygenuptakeandhasalreadybeenappliedto thesportsworldtoimproveathletes'performance.Nowadays, theapplicationofHIITinmedicine hasalsobeenexploredandconductedinmanyclinicalsettings.Butwhetheritiseffectiveandsafe in a larger population is still uncertain. The aim of the systematic review is to assess the effectivenessandsafetyof(HITT)andexploreitsapplicationinmedicine. Methods A systematic review was conducted by searching for randomized controlled trials from 3 databases(PubMed, CochraneTrialandChinaliteraturedatabases)forthehealthoutcomesof HIITcomparedwithcontinuoustrainingindiseaseandhealthypopulationswithinanycountry. Data on pulmonary function (PImax), cardiorespiratory fitness (maximum oxygen uptake), cardiovascular fitness (in stented late luminal loss, blood pressure, left ventricular systolic diameterandleftventricularsystolicdiameter), bodycomposition(totalbodymass)andblood glucosecontrol(HOMAinsulinresistance)wereextracted.Theeffectivenessandeffectsizeof HIITandtheoveralllevelofevidencewereassessed. Results 10RCTswereincluded, withmostofthemdoneinWesterncountries(n=7).Overall,7RCTsin thereviewclearlystatedthatthereweresignificantlyhigherimprovementsonhealthoutcomesin theHIITgroupcomparedtothatofthecontrolgroup, while3RCTsdidnot.AsignificantdifferenceinVO2maxbetweentheHIITgroupandthecontrolgroupatfollowup wasfoundin1study(3.6mL/kg/min[95%CI2.0,5.2]).ThesignificantdifferenceinVOmaxat follow up was also found between the MCT group and the HIIT group (14.90.9 mL/kg/min,19.02.1 mL/kg/min, P
