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de Queiros VS, Rolnick N, Sabag A, Wilde P, Peçanha T, Aniceto RR, Rocha RFC, Delgado DZ, de Araújo Tinôco Cabral BG, Dantas PMS. Effect of High-Intensity Interval Exercise versus Continuous Low-Intensity Aerobic Exercise with Blood Flow Restriction on Psychophysiological Responses: A Randomized Crossover Study. J Sports Sci Med 2024; 23:114-125. [PMID: 38455431 PMCID: PMC10915608 DOI: 10.52082/jssm.2024.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/09/2024] [Indexed: 03/09/2024]
Abstract
This study compared the effect of continuous low-intensity aerobic exercise with blood flow restriction (LI-AE-BFR) versus high-intensity interval exercise (HIIE), matching total external mechanical work between conditions, on perceptual (exertion, pain, affective and pleasure) and physiological responses (heart rate [HR], blood lactate [BL] and muscle fatigue). Ten healthy untrained men (25.6 ± 3.78 years old; 75.02 ± 12.02 kg; 172.2 ± 6.76 cm; 24.95 ± 3.16 kg/m²) completed three visits to the laboratory. In visit 1, anthropometry, blood pressure and peak running velocity on the treadmill were measured. In visits 2 and 3, participants were randomly assigned to HIIE or LI-AE-BFR, both in treadmill. HIIE consisted of 10 one-minute stimuli at 80% of peak running velocity interspersed with one-minute of passive recovery. LI-AE-BFR consisted of 20-minutes of continuous walking at 40% of peak running velocity with bilateral cuffs inflated to 50% of arterial occlusion pressure. BL and maximum isometric voluntary contraction (MIVC - fatigue measure) were measured pre- and immediately post-exercise. HR, rating of perceived exertion (RPE), and rating of perceived pain (RPP) were recorded after each stimulus in HIIE and every two minutes in LI-AE-BFR. Affective response to the session, pleasure, and future intention to exercise (FIE) were assessed 10 minutes after the intervention ended. Increases in BL concentrations were greater in HIIE (p = 0.028; r = 0.51). No effects time or condition were reported for MIVC. HR was higher in HIIE at all analyzed time points (p < 0.001; d = 3.1 to 5.2). RPE did not differ between conditions (p > 0.05), while average session RPP was higher in LI-AE-BFR (p = 0.036; r = 0.46). Affective positive response (p = 0.019; d = 0.9) and FIE (p = 0.013; d = 0.97) were significantly higher in HIIE. Therefore, HIIE elicited higher physiological stress, positive affective response, and intention to engage in future exercise bouts compared to LI-AE-BFR.
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Affiliation(s)
- Victor S de Queiros
- Graduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), Natal-RN, Brazil
| | - Nicholas Rolnick
- The Human Performance Mechanic, CUNY Lehman College, New York, USA
| | - Angelo Sabag
- Discipline of Exercise and Sport Science, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
| | - Phelipe Wilde
- Graduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), Natal-RN, Brazil
| | - Thiago Peçanha
- Department of Sport and Exercise Sciences, Manchester Metropolitan University Institute of Sport, Manchester Metropolitan University, Manchester, UK
| | - Rodrigo Ramalho Aniceto
- Study and Research Group in Biomechanics and Psychophysiology of Exercise, Federal Institute of Education, Science and Technology of Rio Grande do Norte, Currais Novos-RN, Brazil
| | | | - Douglas Z Delgado
- Graduate Program in Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal-RN, Brazil
| | | | - Paulo Moreira Silva Dantas
- Graduate Program in Health Sciences, Federal University of Rio Grande do Norte (UFRN), Natal-RN, Brazil
- Graduate Program in Physical Education, Federal University of Rio Grande do Norte (UFRN), Natal-RN, Brazil
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Sanca-Valeriano S, Espinola-Sánchez M, Caballero-Alvarado J, Canelo-Aybar C. Effect of high-intensity interval training compared to moderate-intensity continuous training on body composition and insulin sensitivity in overweight and obese adults: A systematic review and meta-analysis. Heliyon 2023; 9:e20402. [PMID: 37800068 PMCID: PMC10550571 DOI: 10.1016/j.heliyon.2023.e20402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/21/2023] [Accepted: 09/22/2023] [Indexed: 10/07/2023] Open
Abstract
Objective To compare the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on adults with overweight and obesity. Outcomes, including changes in insulin sensitivity, weight, body mass index (BMI), waist circumference, and body fat, were analyzed. Methods A systematic literature review was conducted. This review is registered in the International Prospective Register of Systematic Reviews (PROSPERO) under the number CRD42021281899. Clinical trials involving individuals who are overweight and obese and comparing HIIT with MICT effects on insulin sensitivity, weight, BMI, body fat percentage, and waist circumference were included. PubMed, Web of Science, Embase, and Scopus databases were searched using controlled vocabulary and free-text terms related to HIIT, obesity, and overweight. The search included studies published until September 2022. The Rob2 tool was used to assess the risk of bias. The results were presented through meta-analyses that provided summary estimators and confidence intervals. Subgroup analyses were conducted to assess the effect of the risk of bias on the outcomes. This research did not receive any specific funding. Results Of the 2534 articles, 30 met the eligibility criteria. The intervention duration ranged from 4 to 16 weeks. The observed effects for each outcome were as follows: insulin sensitivity (p = 0.02), weight (p = 0.58), BMI (p = 0.53), waist circumference (p = 0.87), body fat percentage (p = 0.07), body fat mass in kilograms (p = 0.39). The level of evidence obtained was moderate except for waist circumference, which was rated as low. Limitations included heterogeneity in training protocols, measurements, and study duration. Additionally, a risk of bias was identified in these studies. Conclusion HIIT and MICT did not significantly differ in their effects on weight, BMI, waist circumference, or body fat mass in adults with overweight and obesity. However, a moderate beneficial effect of HIIT was observed on insulin sensitivity. Therefore, further evidence is required to confirm these findings.
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Affiliation(s)
| | | | | | - Carlos Canelo-Aybar
- Iberoamerican Cochrane Centre, Biomedical Research Institute Sant Pau (IIB Sant Pau), Spain
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3
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Li F, Kong Z, Zhu X, Chow BC, Zhang D, Liang W, Shang B, Liu Y, Zhang H. High-intensity interval training elicits more enjoyment and positive affective valence than moderate-intensity training over a 12-week intervention in overweight young women. J Exerc Sci Fit 2022; 20:249-255. [PMID: 35646131 PMCID: PMC9120050 DOI: 10.1016/j.jesf.2022.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 05/01/2022] [Accepted: 05/02/2022] [Indexed: 02/06/2023] Open
Abstract
Background The purpose of this study was to compare the differences in enjoyment and affect in response to four weight control intervention protocols over 12 weeks. Methods Sixty overweight young females were randomised into four intervention groups: repeated sprint training (RST, 6-sec all-out sprint interspersed with 9-sec rest), high-intensity interval training (HIIT) with short interval (HIIT120, 1-min effort at 120% V̇O2peak) and long interval (HIIT90, 4-min effort at 90% V̇O2peak), and moderate-intensity continuous training (MICT, 60% V̇O2peak) by cycling over 12 weeks. The total workload in each training session in HIIT120, HIIT90, and MICT was confined to 200 kJ, while it was lower in RST with 57 ± 4 kJ. Enjoyment (Physical Activity Enjoyment Scale, PACES) and affective valence (Feeling Scale, FS) were measured throughout the intervention. Results The score of the PACES on average over 12 weeks showed a significant between-group effect that was lower in MICT (80.8 ± 11.8) compared with HIIT120 (92.5 ± 11.4) and HIIT90 (96.8 ± 13.9) (p < 0.05). In the 8th week, enjoyment was scored higher in two HIITs compared with MICT. In the 12th week, HIITs and RST were more enjoyable than MICT, where two HIITs were better than RST. The score of FS showed a significant between-group effect that was higher in HIIT90 (1.5 ± 1.4) compared with HIIT120 (0.2 ± 1.2) (p < 0.05), but a non-significant time or group-by-time interaction effect. A significant weight loss occurred in three interval training protocols (p < 0.05), but not in MICT. The V̇O2peak significantly increased in four groups without between-group difference. Conclusion Interval training, especially the long-interval type, is an enjoyable and pleasant long-term exercise intervention for overweight young women. RST could be an alternative for weight control considering its time efficiency with comparable enjoyment and overall pleasure.
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Affiliation(s)
- Feifei Li
- Centre for Health and Exercise Science Research, Hong Kong Baptist University, Hong Kong, China.,Physical Education College, Hebei Normal University, Shijiazhuang, China.,Department of Sport, Physical Education and Health, Hong Kong Baptist University, China
| | - Zhaowei Kong
- Faculty of Education, University of Macau, Macau, China
| | - Xiangui Zhu
- Physical Education College, Hebei Normal University, Shijiazhuang, China
| | - Bik Chu Chow
- Department of Sport, Physical Education and Health, Hong Kong Baptist University, China.,Dr. Stephen Hui Research Centre for Physical Recreation and Wellness, Hong Kong Baptist University, Hong Kong, China
| | - Dandan Zhang
- Institute of Finance and Economics, Shanghai Lida University, Shanghai, China
| | - Wei Liang
- Centre for Health and Exercise Science Research, Hong Kong Baptist University, Hong Kong, China.,Department of Sport, Physical Education and Health, Hong Kong Baptist University, China
| | - Borui Shang
- Department of Social Sciences, Hebei Sport University, Shijiazhuang, China
| | - Yang Liu
- Physical Education College, Hebei Normal University, Shijiazhuang, China
| | - Haifeng Zhang
- Physical Education College, Hebei Normal University, Shijiazhuang, China.,Hebei Provincial Key Laboratory of Measurement and Evaluation in Human Movement and Bio-Information, Hebei Normal University, Shijiazhuang, China
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Nordén KR, Dagfinrud H, Semb AG, Hisdal J, Viktil KK, Sexton J, Fongen C, Skandsen J, Blanck T, Metsios GS, Tveter AT. Effect of high-intensity exercise on cardiorespiratory fitness, cardiovascular disease risk and disease activity in patients with inflammatory joint disease: protocol for the ExeHeart randomised controlled trial. BMJ Open 2022; 12:e058634. [PMID: 35177467 PMCID: PMC8860070 DOI: 10.1136/bmjopen-2021-058634] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
INTRODUCTION Inflammatory joint disease (IJD) is associated with increased risk of cardiovascular disease (CVD) fostered by systemic inflammation and a high prevalence of CVD risk factors. Cardiorespiratory fitness (CRF) is an important health parameter and CRF-measures are advocated in routine health evaluations. CRF associates with CVD risk, and exercise modalities such as high intensity interval training (HIIT) can increase CRF and mitigate CVD risk factors. In IJD, exercise is rarely used in CVD risk management and the cardioprotective effect of HIIT is unclear. Furthermore, the clinical applicability of HIIT to primary care settings is largely unknown and warrants investigation. The primary aim is to assess the effect of a HIIT programme on CRF in patients with IJD. Second, we will evaluate the effect of HIIT on CVD risk and disease activity in patients with IJD, feasibility of HIIT in primary care and validity of non-exercise algorithms to detect change in CRF. METHODS AND ANALYSIS ExeHeart is a single-blinded, randomised controlled trial. Sixty patients with IJD will be recruited from the Preventive Cardio-Rheuma clinic at Diakonhjemmet Hospital, Norway. Patients will be assigned to receive standard care (relevant lifestyle advice and cardio-preventive medication) or standard care plus a 12-week HIIT intervention by physiotherapists in primary care. HIIT sessions will be prescribed at 90%-95% of peak heart rate. Outcomes include CRF (primary outcome), CVD risk factors, anthropometric measures, disease activity and patient-reported outcomes related to pain, fatigue, disease, physical activity and exercise and will be assessed at baseline, 3 months (primary endpoint) and 6 months postbaseline. ETHICS AND DISSEMINATION Ethical approval has been obtained from the Regional Committee for Medical and Health Research Ethics (201227). Participants are required to sign a written informed consent form. Results will be discussed with patient representatives, submitted to peer-reviewed journals and presented at relevant platforms. TRIAL REGISTRATION NUMBER NCT04922840.
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Affiliation(s)
- Kristine Røren Nordén
- Norwegian National Advisory Unit on Rehabilitation in Rheumatology, Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
- Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Hanne Dagfinrud
- Norwegian National Advisory Unit on Rehabilitation in Rheumatology, Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
- Institute of Health and Society, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Anne Grete Semb
- Preventive Cardio-Rheuma Clinic, Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Jonny Hisdal
- Department of vascular surgery, University of Oslo Faculty of Medicine, Oslo, Norway
| | - Kirsten K Viktil
- Department of Pharmacy, University of Oslo, Oslo, Norway
- Diakonhjemmet Hospital Pharmacy, Diakonhjemmet Hospital, Oslo, Norway
| | - Joseph Sexton
- Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Camilla Fongen
- Norwegian National Advisory Unit on Rehabilitation in Rheumatology, Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Jon Skandsen
- Patient advisory board, Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
| | - Thalita Blanck
- Patient advisory board, Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
| | - George S Metsios
- Department of Nutrition and Dietetics, University of Thessaly, Volos, Thessaly, Greece
| | - Anne Therese Tveter
- Norwegian National Advisory Unit on Rehabilitation in Rheumatology, Division of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway
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Karatzanos E, Ferentinos P, Mitsiou G, Dimopoulos S, Ntalianis A, Nanas S. Acute Cardiorespiratory Responses to Different Exercise Modalities in Chronic Heart Failure Patients-A Pilot Study. J Cardiovasc Dev Dis 2021; 8:jcdd8120164. [PMID: 34940519 PMCID: PMC8708548 DOI: 10.3390/jcdd8120164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/23/2021] [Accepted: 11/24/2021] [Indexed: 02/07/2023] Open
Abstract
The purpose of this study was to compare the acute cardiorespiratory responses and time spent above different %VO2peak intensities between three "iso-work" protocols: (a) a high intensity interval training protocol (HIIT), (b) a higher intensity continuous protocol (CON70) and (c) a lower intensity continuous protocol (CON50) in patients with chronic heart failure (CHF). Ten male CHF patients (aged 55.1 ± 16.2 years) performed in separate days a single session of a HIIT protocol consisted of 4 sets × 4 min cycling at 80% VO2peak with 3 min of recovery at 50% VO2peak, a CON70 protocol corresponding to 70% VO2peak and a CON50 protocol corresponding to 50% VO2peak. Cardiopulmonary data were collected by an online gas analysis system. The HIIT and CON70 elicited higher cardiorespiratory responses compared to CON50 with no differences between them (p > 0.05). In HIIT and CON70, patients exercised longer at >80% and >90% VO2peak. The completion rate was 100% for the three protocols. Not any adverse events were observed in either protocol. Both HIIT and CON70 elicited a stronger physiological stimulus and required shorter time than CON50. Both HIIT and CON70 also induced comparable hemodynamic responses and ventilatory demand.
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Affiliation(s)
- Eleftherios Karatzanos
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, School of Medicine, National and Kapodistrian University of Athens, 106 75 Athens, Greece; (G.M.); (S.D.); (S.N.)
- Correspondence: or ; Tel.: +30-2132043385
| | | | - Georgios Mitsiou
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, School of Medicine, National and Kapodistrian University of Athens, 106 75 Athens, Greece; (G.M.); (S.D.); (S.N.)
| | - Stavros Dimopoulos
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, School of Medicine, National and Kapodistrian University of Athens, 106 75 Athens, Greece; (G.M.); (S.D.); (S.N.)
| | - Argyrios Ntalianis
- Heart Failure and Cardio-Oncology Unit, Alexandra Hospital, 115 28 Athens, Greece;
| | - Serafeim Nanas
- Clinical Ergospirometry, Exercise and Rehabilitation Laboratory, School of Medicine, National and Kapodistrian University of Athens, 106 75 Athens, Greece; (G.M.); (S.D.); (S.N.)
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Hannan AL, Hing W, Coombes JS, Gough S, Climstein M, Adsett G, Jayasinghe R, Furness J. Effect of personal activity intelligence (PAI) monitoring in the maintenance phase of cardiac rehabilitation: a mixed methods evaluation. BMC Sports Sci Med Rehabil 2021; 13:124. [PMID: 34629086 PMCID: PMC8503999 DOI: 10.1186/s13102-021-00350-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 09/27/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND Personal activity intelligence (PAI) is a single physical activity metric based upon heart rate responses to physical activity. Maintaining 100 PAI/week is associated with a 25% risk reduction in cardiovascular disease mortality and 50 PAI/week provides 60% of the benefits. The effect of utilising this metric within a cardiac population has not been previously investigated. The aim of this study was to determine the effect of PAI monitoring on the amount and/or intensity of physical activity for people in the maintenance phase of cardiac rehabilitation and to explore participants' perceptions of this approach. METHODS A concurrent mixed methods approach was undertaken. Participants in the maintenance phase of cardiac rehabilitation monitored PAI for six weeks via a wearable physical activity monitoring device (WPAM). In the first three weeks participants were blinded to their PAI score. A quality-of-life questionnaire (EQ-5D-5L) was completed, and semi-structured interviews conducted to investigate attitudes to PAI monitoring. Daily PAI data was collected throughout the 6-week period. RESULTS Twenty participants completed the trial. PAI earned/day was increased after participants could view their data (mean difference: 2.1 PAI/day (95% CI 0.3, 4.0), p = 0.027). The median change in percentage of days participants achieved a Total PAI score of 25 (p = 0.023) and 50 (p = 0.015) were also increased. The mean change in total scores for the EQ-5D-5L and EQVAS were improved after 6 weeks (0.6 ± 1.05; 95% CI (0.11-1.09); p = 0.019); (5.8/100; 95% CI (2.4-9.2); p = 0.002 respectively). Thematic framework analysis identified three global themes (perceptions on the WPAM, PAI and factors affecting exercise). Most participants stated motivation to exercise increased after they could view their PAI data. Many of the participants believed they would continue to use PAI long-term. Others were undecided; the latter primarily due to technical issues and/or preferring devices with greater functionality and attractiveness. All participants would recommend PAI. CONCLUSION This exploratory study showed monitoring PAI via a WPAM increased the amount and/or intensity of physical activity within the cardiac population. Participants found PAI interesting, beneficial, and motivating. If technical issues, aesthetics, and functionality of the WPAM were improved, participants may continue to use the approach long-term. PAI may be a viable strategy to assist people with cardiac disease maintain physical activity adherence.
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Affiliation(s)
- Amanda L Hannan
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia. .,Bond Institute of Health and Sport, 2 Promethean Way, Robina, QLD, 4226, Australia.
| | - Wayne Hing
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia.,Water Based Research Unit, Bond University, Gold Coast, Australia
| | - Jeff S Coombes
- Centre for Research on Exercise, Physical Activity and Health, School of Human Movement and Nutrition Sciences, The University of Queensland, Brisbane, Australia
| | - Suzanne Gough
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia
| | - Mike Climstein
- Clinical Exercise Physiology, School of Health and Human Sciences, Southern Cross University, Bilinga, QLD, Australia.,Physical Activity, Lifestyle, Ageing and Wellbeing Faculty Research Group, University of Sydney, Sydney, NSW, Australia.,Water Based Research Unit, Bond University, Gold Coast, Australia
| | | | - Rohan Jayasinghe
- Cardiology Department, Gold Coast University Hospital, Queensland, Griffith University, Brisbane, QLD, Australia.,Macquarie University, Sydney, NSW, Australia
| | - James Furness
- Faculty of Health Sciences and Medicine, Bond University, Gold Coast, QLD, Australia.,Water Based Research Unit, Bond University, Gold Coast, Australia
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Hesketh KL, Church H, Kinnafick F, Shepherd SO, Wagenmakers AJM, Cocks M, Strauss JA. Evidence-based vs. social media based high-intensity interval training protocols: Physiological and perceptual responses. PLoS One 2021; 16:e0257685. [PMID: 34587217 PMCID: PMC8480907 DOI: 10.1371/journal.pone.0257685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 09/07/2021] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE High intensity interval training (HIIT) is a time-efficient exercise modality to improve cardiorespiratory fitness, and has recently been popularised by social media influencers. However, little is known regarding acute physiological and perceptual responses to these online protocols compared to HIIT protocols used within research. The aim was to investigate acute physiological, perceptual and motivational responses to two HIIT protocols popular on social media, and compare these to two evidence-based protocols. METHODS Twenty-seven recreationally active (>1 exercise session /week) participants (Age: 22±3y, BMI: 24.3±2.4) completed a randomised cross-over study, whereby each participant completed four HIIT protocols, two already established in research (Ergo-60:60 (cycling 10x60s at 100%Wmaxwith 60s rest), BW-60:60 (body-weight exercises 10x60swith 60s rest)) and two promoted on social media (SM-20:10 (body-weight exercises 20x20swith 10s rest) and SM-40:20 (body-weight exercises 15x40s with 20s rest)). Blood lactate, heart rate (HR), feeling scale (FS), felt arousal scale (FSA), enjoyment and perceived competence were measured in response to each protocol. RESULTS Significant differences were observed between BW-60:60 and SM-20:10 for the proportion of intervals meeting the ACSM high-intensity exercise criterion (>80% of HRmax) (BW-60:60 93±10%, SM-20:10 74±20%, P = 0.039) and change in lactate (BW-60:60 +7.8±3.7mmol/L, SM-20:10 +5.5±2.6mmol/L, P = 0.001). The percentage of time spent above the criterion HR was also significantly lower in SM-20:10 compared to all other protocols (Ergo-60:60 13.9±4.9min, BW-60:60 13.5±3.5min, SM-40:20 12.1±2.4min, SM-20:10 7.7±3.1, P<0.05). No differences were observed in lowest reported FS between protocols (P = 0.268), but FS decreased linearly throughout Ergo-60:60 and BW-60:60 (first vs. last interval P<0.05), but not in SM-20:10 or SM-40:20 (P>0.05). Enjoyment was higher upon completion of BW-60:60 compared to Ergo-60:60 and SM-40:20 (P<0.05). CONCLUSIONS This study shows that HIIT protocols available on social media offer an interesting real-world alternative for promoting exercise participation. Future studies should continue to investigate these highly popular and practical HIIT protocols.
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Affiliation(s)
- Katie L. Hesketh
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, United Kingdom
| | - Hannah Church
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, United Kingdom
| | - Florence Kinnafick
- School of Sport, Exercise and Health Sciences, National Centre for Sport and Exercise Medicine, Loughborough University, Loughborough, United Kingdom
| | - Sam O. Shepherd
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, United Kingdom
| | - Anton J. M. Wagenmakers
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, United Kingdom
| | - Matthew Cocks
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, United Kingdom
| | - Juliette A. Strauss
- Research Institute for Sport and Exercise Science, Liverpool John Moores University, Liverpool, United Kingdom
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Wang K, Zhu Y, Wong SHS, Chen Y, Siu PMF, Baker JS, Sun F. Effects and dose-response relationship of high-intensity interval training on cardiorespiratory fitness in overweight and obese adults: a systematic review and meta-analysis. J Sports Sci 2021; 39:2829-2846. [PMID: 34399677 DOI: 10.1080/02640414.2021.1964800] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This study aims to quantify the effects of high-intensity interval training (HIIT) on cardiorespiratory fitness (CRF) by considering potential moderators and to characterise dose-response relationships of HIIT variables that could maximise CRF improvements in overweight and obese adults. Following a comprehensive search through four electronic databases, 19 studies met eligibility criteria. Random-effects models were applied to weight all included studies and to compute the weighted mean standardised mean differences (SMDwm). Meta-analysis showed that HIIT was a highly effective approach for improving CRF in overweight and obese adults (SMDwm = 1.13). Effects were modified by sex and baseline CRF level. Dose-response relationship analysis provided some preliminary data regarding the training period, training intensity, and session duration. However, it is still not possible to provide accurate recommendations currently. Further studies are still needed to identify the most appropriate training variables to prescribe effective HIIT programmes for improving CRF in overweight and obese adults.
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Affiliation(s)
- Kangle Wang
- Department Of Health And Physical Education, The Education University of Hong Kong, Hong Kong, China
| | - Yuxin Zhu
- Department Of Health And Physical Education, The Education University of Hong Kong, Hong Kong, China
| | - Stephen Heung-Sang Wong
- Department Of Sports Science And Physical Education, The Chinese University of Hong Kong, Hong Kong, China
| | - Yajun Chen
- Department Of Maternal And Child Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Parco Ming-Fai Siu
- Division Of Kinesiology, School Of Public Health, University Of Hong Kong, Hong Kong, China
| | - Julien S Baker
- Department Of Sport And Physical Education, Hong Kong Baptist University, Hong Kong, China
| | - Fenghua Sun
- Department Of Health And Physical Education, The Education University of Hong Kong, Hong Kong, China
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Abstract
INTRODUCTION The aim of this study was to identify relevant content among four important domains for the development and structure of a paediatric cardiac rehabilitation curriculum for young patients with congenital heart disease using a consensus approach. METHODS A three-round e-Delphi study among congenital heart disease and paediatric exercise physiology experts was conducted. Round 1, experts provided opinions in a closed- and open-ended electronic questionnaire to identify specific elements necessary for inclusion in a paediatric cardiac rehabilitation programme. Round 2, experts were asked to re-rate the same items after feedback and summary data were provided from round 1. Round 3, the same experts were asked to re-rate items that did not reach consensus from round 2. RESULTS Forty-seven experts were contacted via e-mail to participate on the Delphi panel, 37 consented, 35 completed round 1, 29 completed round 2, and 28 completed the final round. After round 2, consensus was reached in 55 of 60 (92%) questionnaire items across four domains: exercise training, education, outcome metrics, and self-confidence. CONCLUSION This study established consensus towards programme structure, exercise training principles, educational content, patient outcome measures, and self-confidence promotion. By identifying the key components within each domain, there is potential to benchmark recommended standards and practice guidelines for the development of a paediatric cardiac rehabilitation curriculum to be used and tested by exercise physiologists, paediatric and adult congenital cardiologists, and other healthcare team members for optimising the health and wellness of paediatric patients with congenital heart disease.
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10
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The Effect and Safety of Aerobic Interval Training According to Exercise Intensity in Acute Coronary Syndrome. J Cardiopulm Rehabil Prev 2020; 40:178-182. [DOI: 10.1097/hcr.0000000000000455] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Low-Volume High-Intensity Aerobic Interval Training Is an Efficient Method to Improve Cardiorespiratory Fitness After Myocardial Infarction. J Cardiopulm Rehabil Prev 2020; 40:48-54. [DOI: 10.1097/hcr.0000000000000453] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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12
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Abstract
Coronary artery disease (CAD) can be obstructive or nonobstructive. Patients with nonobstructive and stable angina pectoris are usually women. Nonobstructive CAD is caused by endothelial dysfunction at the microvascular level, such as cardiac syndrome X and coronary slow flow syndrome. Even if coronary anatomy is nonobstructive, the presence of myocardial ischemia is a major determinant for the exercise program. CAD is a chronic inflammatory disease, and the progression of the disease can lead to a rapid change in the functional capacity of CAD patients. Exercise training is a major component of cardiac rehabilitation and reduces cardiovascular mortality, morbidity, and rehospitalization as well as improves psychological stress and controls risk factors of CAD, such as diabetes mellitus, hypertension, and obesity. It is possible that the quality of life of patients with CAD can be improved by using appropriate exercise therapy. However, the exercise programs among CAD patients are highly underutilized. This chapter will summarize the research progress of exercise in the prevention and treatment of CAD as well as how to create safe exercise programs and the importance of exercise for patients with CAD. In addition, exercise training has fundamental beneficial effects on ischemic and nonischemic heart failure.
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Affiliation(s)
- Aydin Akyuz
- Faculty of Medicine, Department of Cardiology, University Hospital, Namık Kemal University, Tekirdag, Turkey.
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KARLSEN TRINE, VIDEM VIBEKE, HALLE MARTIN, ELLINGSEN ØYVIND, STØYLEN ASBJØRN, DALEN HÅVARD, DELAGARDELLE CHARLES, LARSEN ALFINGE, HOLE TORSTEIN, MEZZANI ALESSANDRO, VAN CRAENENBROECK EMELINEM, BECKERS PAUL, PRESSLER AXEL, CHRISTLE JEFFREYW, WINZER EPHRAIMB, MANGNER NORMAN, WOITEK FELIXJ, HÖLLRIEGEL ROBERT, SNOER MARTIN, FEIEREISEN PATRICK, VALBORGLAND TORSTEIN, LINKE AXEL, PRESCOTT EVA. Baseline and Exercise Predictors of V˙O2peak in Systolic Heart Failure Patients: Results from SMARTEX-HF. Med Sci Sports Exerc 2019; 52:810-819. [DOI: 10.1249/mss.0000000000002193] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Witvrouwen I, Van Craenenbroeck EM, Abreu A, Moholdt T, Kränkel N. Exercise training in women with cardiovascular disease: Differential response and barriers - review and perspective. Eur J Prev Cardiol 2019; 28:779-790. [PMID: 30889981 DOI: 10.1177/2047487319838221] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Accepted: 02/24/2019] [Indexed: 12/19/2022]
Abstract
BACKGROUND Exercise-based cardiac rehabilitation has a class 1A recommendation in coronary artery disease and heart failure based on its beneficial effects on mortality, morbidity and quality of life. However, the inter-individual response to exercise training is highly variable and influenced by both training and patient characteristics. Notably, men and women display a different training response, even when accounting for age, height and lean muscle mass. Most studies investigating exercise effects on various physiological outcomes focus on male patients. Because women are understudied, the scientific evidence for tailored exercise prescription in women is still limited. METHODS This narrative review summarises: (a) the underlying physiological determinants of the response to exercise training in women with cardiovascular disease, in which women rely more on fat than on carbohydrate oxidation during exercise, have lower aerobic capacities and smaller increases in cardiac function during exercise; (b) the benefits and barriers of exercise in women, in whom improving cardiometabolic risk and quality of life is weighed against socioeconomic and psychological needs; and (c) the relevance of different clinical endpoints in exercise trials such as maximum oxygen uptake, morbidity, mortality, training characteristics, quality of life and metabolic or vascular endpoints. RESULTS Finally, we provide a perspective on how to improve referral, enrolment and adherence to exercise training in women, with structured approaches to inform the referring physician as well as the patient, and offering more flexible, gender-tailored or tele/smartphone-based programmes while addressing the socioeconomic and psychological needs of the patients. This may ultimately improve the admission, adherence and outcome of exercise-based cardiac rehabilitation in women.
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Affiliation(s)
- Isabel Witvrouwen
- 1 Laboratory of Cellular and Molecular Cardiology, University of Antwerp, Belgium.,2 Department of Cardiology, Antwerp University Hospital (UZA), Belgium
| | - Emeline M Van Craenenbroeck
- 1 Laboratory of Cellular and Molecular Cardiology, University of Antwerp, Belgium.,2 Department of Cardiology, Antwerp University Hospital (UZA), Belgium
| | - Ana Abreu
- 3 Serviço de Cardiologia, Hospital Santa Maria/HPV, CHLN, Lisboa, Portugal
| | - Trine Moholdt
- 4 Department of Circulation and Medical Imaging, Norwegian University of Science and Technology (NTNU), Norway
| | - Nicolle Kränkel
- 5 Department of Cardiology, Charité Universitätsmedizin, Germany.,6 German Center for Cardiovascular Research, partner site Berlin, Germany
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Berglund IJ, Sørås SE, Relling BE, Lundgren KM, Kiel IA, Moholdt T. The relationship between maximum heart rate in a cardiorespiratory fitness test and in a maximum heart rate test. J Sci Med Sport 2018; 22:607-610. [PMID: 30527685 DOI: 10.1016/j.jsams.2018.11.018] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 09/10/2018] [Accepted: 11/20/2018] [Indexed: 12/27/2022]
Abstract
OBJECTIVES It is suggested that individuals will not reach their heart rate maximum (HRmax) at an incremental cardiorespiratory fitness (CRF) test and commonly five beats per minute (bpm) are added to the highest heart rate (HR) reached. To our knowledge, there is not sufficient data justifying such estimation. Our aim was to assess whether individuals reached HRmax in an incremental CRF test to exhaustion. DESIGN AND METHODS Fifty-one males and 57 females (aged 22-70 years) completed both an incremental CRF test (gradual increase in speed and/or inclination until volitional exhaustion) and a test designed to reach HRmax (with repeated work bouts at high intensity before maximal exertion) ≥48h apart. We investigated the relationship between the highest HR in the two tests using hierarchical linear regression analysis, with HRmax from the HRmax test as a dependent variable, and the highest HR reached at the CRF test (HRcrf), whether maximum oxygen uptake was reached on the CRF test, CRF, sex and age as independent variables. RESULTS HRmax was 2.2 (95% confidence interval, 1.5-2.9) bpm higher in the test designed to reach HRmax than in the CRF test (p<0.001). Only HRcrf significantly predicted HRmax, with no contribution of the other variables in the model. HRmax was predicted from the highest HR reached in an incremental CRF test by multiplying HRcrf with 0.967, and adding 8.197 (HRmax=8.197+[0.967×HRcrf]) beats/min. CONCLUSION Non-athletes reached close to HRmax in a standard CRF test.
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Affiliation(s)
- Ida J Berglund
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Norway
| | - Sara E Sørås
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Norway
| | - Bård E Relling
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Norway
| | - Kari M Lundgren
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Norway
| | - Ida A Kiel
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Norway
| | - Trine Moholdt
- Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Norway; Women's Clinic, St.Olav's Hospital, Norway.
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Pattyn N, Beulque R, Cornelissen V. Aerobic Interval vs. Continuous Training in Patients with Coronary Artery Disease or Heart Failure: An Updated Systematic Review and Meta-Analysis with a Focus on Secondary Outcomes. Sports Med 2018; 48:1189-1205. [PMID: 29502328 DOI: 10.1007/s40279-018-0885-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND In a previous meta-analysis including nine trials comparing aerobic interval training with aerobic continuous training in patients with coronary artery disease, we found a significant difference in peak oxygen uptake favoring aerobic interval training. OBJECTIVE The objective of this study was to (1) update the original meta-analysis focussing on peak oxygen uptake and (2) evaluate the effect on secondary outcomes. METHODS We conducted a systematic review with a meta-analysis by searching PubMed and SPORTDiscus databases up to March 2017. We included randomized trials comparing aerobic interval training and aerobic continuous training in patients with coronary artery disease or chronic heart failure. The primary outcome was change in peak oxygen uptake. Secondary outcomes included cardiorespiratory parameters, cardiovascular risk factors, cardiac and vascular function, and quality of life. RESULTS Twenty-four papers were identified (n = 1080; mean age 60.7 ± 10.7 years). Aerobic interval training resulted in a higher increase in peak oxygen uptake compared with aerobic continuous training in all patients (1.40 mL/kg/min; p < 0.001), and in the subgroups of patients with coronary artery disease (1.25 mL/kg/min; p = 0.001) and patients with chronic heart failure with reduced ejection fraction (1.46 mL/kg/min; p = 0.03). Moreover, a larger increase of the first ventilatory threshold and peak heart rate was observed after aerobic interval training in all patients. Other cardiorespiratory parameters, cardiovascular risk factors, and quality of life were equally affected. CONCLUSION This meta-analysis adds further evidence to the clinically significant larger increase in peak oxygen uptake following aerobic interval training vs. aerobic continuous training in patients with coronary artery disease and chronic heart failure. More well-designed randomized controlled trials are needed to establish the safety of aerobic interval training and the sustainability of the training response over longer periods.
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Affiliation(s)
- Nele Pattyn
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium. .,Department of Cardiology, KU Leuven, Leuven, Belgium.
| | - Randy Beulque
- Department of Rehabilitation Sciences, KU Leuven, Leuven, Belgium
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Rhibi F, Prioux J, Attia MB, Hackney AC, Zouhal H, Abderrahman AB. Increase interval training intensity improves plasma volume variations and aerobic performances in response to intermittent exercise. Physiol Behav 2018; 199:137-145. [PMID: 30458187 DOI: 10.1016/j.physbeh.2018.11.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 10/10/2018] [Accepted: 11/16/2018] [Indexed: 01/06/2023]
Abstract
PURPOSE We studied the effect of two interval training programs of varying intensities (100% vs. 110% of maximal aerobic velocity [MAV]) on hematocrit (Ht), hemoglobin (Hb), and plasma volume variations (PVV) in young men. METHODS Thirty-nine male volunteered were assigned to two control groups (CG100, n = 9 and CG110, n = 10), and two training groups (one with 100% MAV [EG100, n = 10] and one with 110% MAV [EG110, n = 10]). All participants performed a maximal graded exercise test and an intermittent exercise (IE) protocol. Blood was collected at rest, at the end of the IE and after 15 min of recovery, before and after 8-weeks-training. Interval training (IT) sessions consist of 30s IE run at 100% or 110% MAV with 30s recovery at 50% MAV. RESULTS After training, time to exhaustion (TTE) was improved in EG110 (+613.7) and EG100 (+397.5). This improvement was greater in EG110 than EG100 (p < 0.005). After training, Hb deceased in EG100 and EG110 at rest (p < 0.01), at the end of IE (p = 0.000) and after 15 min of recovery (p = 0.01). This decrease was more slightly more substantial at rest in EG100 (-0.6%) than EG110 (-0.3%). After training, Ht decreased in EG100 and EG110 at rest (p = 0.001), at the end of IE (p = 0.000) and at 15 min of recovery (p = 0.01). This decrease was more important in EG110 than EG100 at rest (-2.7%), at the end of IE (-2.1%) and after 15 min recovery. After training, PVVrest and PVVend increased in EG100 (+2.2%) and EG110 (+3.2%). No significant difference between EG100 and EG110 was observed. CONCLUSION Increasing IT intensity by 10% MAV increases PVVrest and PVVend. Despite the fact that EG100 and EG110 had the same PVVend after training, greater performances were recorded in EG110.
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Affiliation(s)
- Fatma Rhibi
- Laboratory of Biomonitoring of the Environment, Faculty of Science of Bizerte, University of Carthage, Tunisia; Laboratory of Movement, Sport and Health (M2S) - EA 1274, University of Rennes 2, F-35000, France
| | - Jacques Prioux
- Laboratory of Movement, Sport and Health (M2S) - EA 1274, University of Rennes 2, F-35000, France
| | - Mossadok Ben Attia
- Laboratory of Biomonitoring of the Environment, Faculty of Science of Bizerte, University of Carthage, Tunisia
| | - Anthony C Hackney
- Department of Exercise & Sport Science, University of North Carolina, Chapel Hill, NC, United States
| | - Hassane Zouhal
- Laboratory of Movement, Sport and Health (M2S) - EA 1274, University of Rennes 2, F-35000, France
| | - Abderraouf Ben Abderrahman
- Laboratory of Biomonitoring of the Environment, Faculty of Science of Bizerte, University of Carthage, Tunisia; High Institute of Sports and Physical Education (ISSEP) Ksar Saïd, University of Manouba, Tunisia.
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Smilios I, Myrkos A, Zafeiridis A, Toubekis A, Spassis A, Tokmakidis SP. The Effects of Recovery Duration During High-Intensity Interval Exercise on Time Spent at High Rates of Oxygen Consumption, Oxygen Kinetics, and Blood Lactate. J Strength Cond Res 2018; 32:2183-2189. [PMID: 28301436 DOI: 10.1519/jsc.0000000000001904] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Smilios, I, Myrkos, A, Zafeiridis, A, Toubekis, A, Spassis, A, and Tokmakidis, SP. The effects of recovery duration during high-intensity interval exercise on time spent at high rates of oxygen consumption, oxygen kinetics, and blood lactate. J Strength Cond Res 32(8): 2183-2189, 2018-The recovery duration and the work-to-recovery ratio are important aspects to consider when designing a high-intensity aerobic interval exercise (HIIE). This study examined the effects of recovery duration on total exercise time performed above 80, 90, and 95% of maximum oxygen consumption (V[Combining Dot Above]O2max) and heart rate (HRmax) during a single-bout HIIE. We also evaluated the effects on V[Combining Dot Above]O2 and HR kinetics, blood lactate concentration, and rating of perceived exertion (RPE). Eleven moderately trained men (22.1 ± 1 year) executed, on 3 separate sessions, 4 × 4-minute runs at 90% of maximal aerobic velocity (MAV) with 2, 3, and 4 minutes of active recovery. Recovery duration did not affect the percentage of V[Combining Dot Above]O2max attained and the total exercise time above 80, 90, and 95% of V[Combining Dot Above]O2max. Exercise time above 80 and 90% of HRmax was longer with 2 and 3 minutes (p ≤ 0.05) as compared with the 4-minute recovery. Oxygen uptake and HR amplitude were lower, mean response time slower (p ≤ 0.05), and blood lactate and RPE higher with 2 minutes compared with 4-minute recovery (p ≤ 0.05). In conclusion, aerobic metabolism attains its upper functional limits with either 2, or 3 or 4 minutes of recovery during the 4 × 4-minute HIIE; thus, all rest durations could be used for the enhancement of aerobic capacity in sports, fitness, and clinical settings. The short (2 minutes) compared with longer (4 minutes) recovery, however, evokes greater cardiovascular and metabolic stress and activates to a greater extent anaerobic glycolysis and hence, could be used by athletes to induce greater overall physiological challenge.
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Affiliation(s)
- Ilias Smilios
- Department of Physical Education & Sport Science, Democritus University of Thrace, Komotini, Greece
| | - Aristides Myrkos
- Department of Physical Education & Sport Science, Democritus University of Thrace, Komotini, Greece
| | - Andreas Zafeiridis
- Department of Physical Education & Sport Science, Aristotle University of Thessaloniki, Serres, Greece
| | - Argyris Toubekis
- Department of Physical Education & Sport Science, National and Kapodistrian University of Athens, Athens, Greece
| | - Apostolos Spassis
- Department of Physical Education & Sport Science, Democritus University of Thrace, Komotini, Greece
| | - Savvas P Tokmakidis
- Department of Physical Education & Sport Science, Democritus University of Thrace, Komotini, Greece
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Maldonado-Martín S, Jayo-Montoya JA, Matajira-Chia T, Villar-Zabala B, Goiriena JJ, Aispuru GR. Effects of combined high-intensity aerobic interval training program and Mediterranean diet recommendations after myocardial infarction (INTERFARCT Project): study protocol for a randomized controlled trial. Trials 2018; 19:156. [PMID: 29499766 PMCID: PMC5834904 DOI: 10.1186/s13063-018-2529-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 02/05/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Exercise therapy has long been used for rehabilitation purposes after myocardial infarction (MI) and the benefit of regular physical exercise is also well-established. High-intensity interval training (HIIT) has been proposed to be more effective than continuous exercise for improving exercise capacity and health-related adaptations to low-volume (LV) and HIIT are also known. Furthermore, the Mediterranean diet (Mediet) has been widely reported to be a model of healthy eating for its contribution to a favorable health status and a better quality of life, reducing overall mortality. This study will investigate the effects of different HIIT programs (high-volume [HV] vs LV) and Mediet recommendations in clinical condition, cardiorespiratory fitness, biomarkers, ventricular function, and perception of quality of life after MI, and compared to an attention control group that is recommended to Mediet and physical activity without supervision sessions. METHODS/DESIGN In this randomized controlled trial, cardiorespiratory fitness, anthropometry, central and peripheral cardiovascular variables, biochemical and nutritional condition, and quality of life will be assessed before and after 16 weeks of intervention in 177 participants diagnosed with MI type 1. All participants will be randomly (1:1:1) assigned to the attention control group or two exercise groups (Mediet recommendations plus supervised aerobic exercise two days/week: (1) HV (40 min) HIIT group and (2) LV (20 min) HIIT group. DISCUSSION This study will be the first clinical trial comparing the effects of two different volumes of HIIT programs with Mediet recommendations for people after MI. The results of this study will provide good evidence for physical rehabilitation in this population. TRIAL REGISTRATION ClinicalTrials.gov, NCT02876952 . Registered on 24 August 2016.
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Affiliation(s)
- Sara Maldonado-Martín
- Department of Physical Education and Sport, Faculty of Education and Sport, Physical Activity and Sport Sciences Section, University of the Basque Country (UPV/EHU), Portal de Lasarte, 71, 01007 Vitoria-Gasteiz, Araba/Álava, Basque Country Spain
| | - Jon Ander Jayo-Montoya
- Department of Physical Education and Sport, Faculty of Education and Sport, Physical Activity and Sport Sciences Section, University of the Basque Country (UPV/EHU), Portal de Lasarte, 71, 01007 Vitoria-Gasteiz, Araba/Álava, Basque Country Spain
| | | | | | - Juan José Goiriena
- Department of Physiology, Faculty of Medicine, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Basque Country Spain
| | - G. Rodrigo Aispuru
- Primary Care Administration of Burgos, Miranda de Ebro, Burgos, Spain
- Department of Physiology, Faculty of Medicine, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Basque Country Spain
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20
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Choi HY, Han HJ, Choi JW, Jung HY, Joa KL. Superior Effects of High-Intensity Interval Training Compared to Conventional Therapy on Cardiovascular and Psychological Aspects in Myocardial Infarction. Ann Rehabil Med 2018; 42:145-153. [PMID: 29560335 PMCID: PMC5852218 DOI: 10.5535/arm.2018.42.1.145] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Accepted: 06/20/2017] [Indexed: 12/01/2022] Open
Abstract
Objective To evaluate the effect of high-intensity interval training (HIIT) on psychological symptoms, activity states, and cardiovascular functions in patients with myocardial infarction (MI) of low and moderate risk stratification. Methods This prospective study randomly allocated 44 patients with MI to 18 sessions of HIIT or conventional moderate-intensity continuous training (MICT). Outcome measures were assessed at baseline and after 18 sessions. Results Post-exercise cardiovascular and functional states, maximal oxygen uptake (VO2max), metabolic equivalents (METs), 6-Minute Walking Test (6MWT), and Korean Activity Scale/Index (KASI) scores were significantly improved in the HIIT group compared to those in the MICT group after 18 exercise sessions. In particular, VO2max was significantly (p<0.005) improved in the HIIT group (7.58 mL/kg/min) compared to that in the MICT group (2.42 mL/kg/min). In addition, post-exercise psychological states (i.e., scores of Fatigue Severity Scale [FSS] and depression items of the Hospital Anxiety and Depression Scale [HADS_D]) were significantly improved in the HIIT group compared to those in the MICT group after 18 exercise sessions. HADS-D was improved by 1.89 in the HIIT group compared to decrement of 0.47 in the MICT group. FSS was improved by 6.38 in the HIIT group compared to decrement of 0.77 in the MICT group (p<0.005). Conclusion This study demonstrates that HIIT can improve cardiac function, psychological, and activity states in low and moderate risk MI patients. Compared to conventional MICT, HIIT can improve cardiovascular functions, activity states, depression, and fatigue more effectively.
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Affiliation(s)
- Ha-Yoon Choi
- Department of Physical and Rehabilitation Medicine, Inha University School of Medicine, Incheon, Korea
| | - Hee-Jun Han
- Department of Physical and Rehabilitation Medicine, Inha University School of Medicine, Incheon, Korea
| | - Ji-Won Choi
- Department of Physical and Rehabilitation Medicine, Inha University School of Medicine, Incheon, Korea
| | - Han-Young Jung
- Department of Physical and Rehabilitation Medicine, Inha University School of Medicine, Incheon, Korea
| | - Kyung-Lim Joa
- Department of Physical and Rehabilitation Medicine, Inha University School of Medicine, Incheon, Korea
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Follador L, Alves RC, Ferreira SDS, Buzzachera CF, Andrade VFDS, Garcia EDSDA, Osiecki R, Barbosa SC, de Oliveira LM, da Silva SG. Physiological, Perceptual, and Affective Responses to Six High-Intensity Interval Training Protocols. Percept Mot Skills 2018; 125:329-350. [PMID: 29368530 DOI: 10.1177/0031512518754584] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This study examined the extent to which different high-intensity interval training (HIIT) and sprint interval training (SIT) protocols could influence psychophysiological responses in moderately active young men. Fourteen participants completed, in a randomized order, three cycling protocols (SIT: 4 × 30-second all-out sprints; Tabata: 7 × 20 seconds at 170% ⋮O2max; and HIIT: 10 × 60 seconds at 90% HRmax) and three running HIIT protocols (4 × 4 minutes at 90%-95% HRmax, 5 × at v⋮O2max, and 4 × 1,000 meters at a rating of perceived exertion (RPE) of 8, from the OMNI-Walk/Run scale). Oxygen uptake (⋮O2), heart rate, and RPE were recorded during each interval. Affective responses were assessed before and after each trial. The Tabata protocol elicited the highest ⋮O2 and RPE responses, and the least pleasant session-affect among the cycling trials. The v⋮O2max elicited the highest ⋮O2 and RPE responses and the lowest mean session-affect among the running trials. Findings highlight the limited application of SIT and some HIIT protocols to individuals with low fitness levels.
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Affiliation(s)
- Lucio Follador
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
| | - Ragami C Alves
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
| | - Sandro Dos S Ferreira
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
| | - Cosme F Buzzachera
- 2 Department of Physical Education, University of Northern Paraná, Londrina, Paraná, Brazil
| | - Vinicius F Dos S Andrade
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
| | - Erick D S de A Garcia
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
| | - Raul Osiecki
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
| | - Sara C Barbosa
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
| | - Letícia M de Oliveira
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
| | - Sergio G da Silva
- 1 Department of Physical Education, 28122 Federal University of Paraná , Curitiba, Paraná, Brazil
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Wang ZG, Ding MC, Yin X, Zhao Y, Hu F, Ma JZ. Influence of 15 km moderate or high-intensity interval military load carriage activity on postural stability. COGENT MEDICINE 2017. [DOI: 10.1080/2331205x.2017.1408926] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Zeng Gang Wang
- The Research Center of Military Physical Adaptation Training, The Lab of Military Physical Conditioning and Motor Function Assessment, The PLA Army Engineering University, 60 Shuang Long Jie Road, Nanjing, Jiangsu 211101, China
| | - Ming Chao Ding
- The Research Center of Military Physical Adaptation Training, The Lab of Military Physical Conditioning and Motor Function Assessment, The PLA Army Engineering University, 60 Shuang Long Jie Road, Nanjing, Jiangsu 211101, China
| | - Xin Yin
- Department of Exercise and Heath, Nanjing Sports Institute, 8 Ling Gu Si Road, Nanjing, Jiangsu 210014, China
| | - Yan Zhao
- Department of Exercise and Heath, Nanjing Sports Institute, 8 Ling Gu Si Road, Nanjing, Jiangsu 210014, China
| | - Fei Hu
- Department of Exercise and Heath, Nanjing Sports Institute, 8 Ling Gu Si Road, Nanjing, Jiangsu 210014, China
| | - Ji Zheng Ma
- The Research Center of Military Physical Adaptation Training, The Lab of Military Physical Conditioning and Motor Function Assessment, The PLA Army Engineering University, 60 Shuang Long Jie Road, Nanjing, Jiangsu 211101, China
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de Oliveira Sá G, dos Santos Neves V, de Oliveira Fraga SR, Souza-Mello V, Barbosa-da-Silva S. High-intensity interval training has beneficial effects on cardiac remodeling through local renin-angiotensin system modulation in mice fed high-fat or high-fructose diets. Life Sci 2017; 189:8-17. [DOI: 10.1016/j.lfs.2017.09.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 08/30/2017] [Accepted: 09/07/2017] [Indexed: 12/14/2022]
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Zhang XE, Cheng B, Wang Q, Wan JJ. Association of gender-specific risk factors in metabolic and cardiovascular diseases: an NHANES-based cross-sectional study. J Investig Med 2017; 66:22-31. [DOI: 10.1136/jim-2017-000434] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2017] [Indexed: 01/01/2023]
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High Intensity Interval Training for Maximizing Health Outcomes. Prog Cardiovasc Dis 2017; 60:67-77. [PMID: 28385556 DOI: 10.1016/j.pcad.2017.03.006] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 03/29/2017] [Indexed: 02/08/2023]
Abstract
Regular physical activity and exercise training are important actions to improve cardiorespiratory fitness and maintain health throughout life. There is solid evidence that exercise is an effective preventative strategy against at least 25 medical conditions, including cardiovascular disease, stroke, hypertension, colon and breast cancer, and type 2 diabetes. Traditionally, endurance exercise training (ET) to improve health related outcomes has consisted of low- to moderate ET intensity. However, a growing body of evidence suggests that higher exercise intensities may be superior to moderate intensity for maximizing health outcomes. The primary objective of this review is to discuss how aerobic high-intensity interval training (HIIT) as compared to moderate continuous training may maximize outcomes, and to provide practical advices for successful clinical and home-based HIIT.
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Karlsen T, Nes BM, Tjønna AE, Engstrøm M, Støylen A, Steinshamn S. High-intensity interval training improves obstructive sleep apnoea. BMJ Open Sport Exerc Med 2017; 2:bmjsem-2016-000155. [PMID: 29616142 PMCID: PMC5875631 DOI: 10.1136/bmjsem-2016-000155] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/28/2016] [Indexed: 12/29/2022] Open
Abstract
Background Three hours per week of vigorous physical activity is found to be associated with reduced odds of sleep-disordered breathing. Aim To investigate whether 12 weeks of high-intensity interval training (HIIT) reduced the apnoea–hypopnea index (AHI) in obese subjects with moderate-to-severe obstructive sleep apnoea. Methods In a prospective randomised controlled exercise study, 30 (body mass index 37±6 kg/m2, age 51±9 years) patients with sleep apnoea (AHI 41.5±25.3 events/hour) were randomised 1:1 to control or 12 weeks of supervised HIIT (4×4 min of treadmill running or walking at 90%–95% of maximal heart rate two times per week). Results In the HIIT group, the AHI was reduced by 7.5±11.6 events/hour (within-group p<0.05), self-reported sleepiness (Epworth scale) improved from 10.0±3.6 to 7.3±3.7 (between-group p<0.05) and maximal oxygen uptake improved from 28.2±7.4 to 30.2±7.7 mL/kg/min (between-group p<0.05) from baseline to 12 weeks. The AHI, self-reported sleepiness and VO2maxwere unchanged from baseline to 12 weeks in controls (baseline AHI 50.3±25.5 events/hour, Epworth score 5.9±4.3, maximal oxygen uptake 27.0±6.8 mL/kg/min). Body weight remained unchanged in both groups. Conclusion Twelve weeks of HIIT improved the AHI and self-reported daytime sleepiness in subjects with obese sleep apnoea without any change in the desaturation index and body weight.
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Affiliation(s)
- Trine Karlsen
- K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway.,St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Bjarne Martens Nes
- K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Arnt Erik Tjønna
- K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway
| | - Morten Engstrøm
- Department of Neurology and Clinical Neurophysiology, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway.,Department of Neuroscience, Norwegian University of Science and Technology, Trondheim, Norway
| | - Asbjørn Støylen
- Department of Cardiology, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway.,Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Norway
| | - Sigurd Steinshamn
- K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Thoracic Medicine, St. Olav's Hospital, Trondheim University Hospital, Trondheim, Norway
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Bækkerud FH, Solberg F, Leinan IM, Wisløff U, Karlsen T, Rognmo Ø. Comparison of Three Popular Exercise Modalities on V˙O2max in Overweight and Obese. Med Sci Sports Exerc 2017; 48:491-8. [PMID: 26440134 DOI: 10.1249/mss.0000000000000777] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION In this prospective randomized trial, we examined the effect of three popular exercise training modalities on maximal oxygen uptake (V˙O2max) in overweight and obese individuals. In addition, we examined possible concomitant adaptations in endurance exercise performance (time to exhaustion (TTE)), citrate synthase (CS) activity, venous and arterial function, blood volume, and calculated stroke volume (SV). METHODS Thirty subjects were recruited (age, 41 ± 9 yr; weight, 91 ± 14 kg; height, 173 ± 8 cm; body mass index, 30 ± 4 kg·m(-2)) and randomized to either 6 wk of 4 × 4-min high-intensity interval training (4HIIT) at 85%-95% of HRmax, 10 × 1-min HIIT (1HIIT) at V˙O2max load, or 45-min moderate-intensity continuous training (MICT) at 70% of HRmax. V˙O2max, TTE, CS activity, venous and arterial function, as well as blood volume were measured before and after the training period. O2 pulse was calculated and used to estimate SV. Analysis was conducted per protocol. RESULTS Only 4HIIT increased V˙O2max (P < 0.01) and significantly more compared with 1HIIT (P = 0.04) and MICT (P = 0.03) (4HIIT, 10%; 1HIIT, 3.3%; and MICT, 3.1%). All groups increased TTE (4HIIT, 198%; 1HIIT, 116%; MICT, 52%), with a higher increase after 4HIIT compared with that after MICT (P = 0.02). Calculated SV increased only after 4HIIT (14.4%). Plasma volume and hemoglobin mass increased after 1HIIT only (5.6% and 6.5%); however, no group differences were found. All groups increased CS activity (4HIIT, 35%; 1HIIT, 35%; MICT, 56%), with no group differences. Arterial inflow (15.7%) and venous outflow (22.7%) decreased after MICT, but there were no group differences. CONCLUSIONS 4HIIT was superior to 1HIIT and MICT in improving V˙O2max likely because of an increased SV.
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Affiliation(s)
- Fredrik Hjulstad Bækkerud
- 1K. G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, NORWAY; and 2Department of Cardiology, St. Olav's University Hospital, Trondheim, NORWAY
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Tzanis G, Philippou A, Karatzanos E, Dimopoulos S, Kaldara E, Nana E, Pitsolis T, Rontogianni D, Koutsilieris M, Nanas S. Effects of High-Intensity Interval Exercise Training on Skeletal Myopathy of Chronic Heart Failure. J Card Fail 2017; 23:36-46. [PMID: 27327970 DOI: 10.1016/j.cardfail.2016.06.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 06/11/2016] [Accepted: 06/16/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND It remains controversial which type of exercise elicits optimum adaptations on skeletal myopathy of heart failure (HF). Our aim was to evaluate the effect of high-intensity interval training (HIIT), with or without the addition of strength training, on skeletal muscle of HF patients. METHODS AND RESULTS Thirteen male HF patients (age 51 ± 13 years, body mass index 27 ± 4 kg/m2) participated in either an HIIT (AER) or an HIIT combined with strength training (COM) 3-month program. Biopsy samples were obtained from the vastus lateralis. Analyses were performed on muscle fiber type, cross-section area (CSA), capillary density, and mRNA expression of insulin-like growth factor (IGF) 1 isoforms (ie, IGF-1Ea, IGF-1Eb, IGF-1Ec), type-1 receptor (IGF-1R), and binding protein 3 (IGFBP-3). Increased expression of IGF-1Ea, IGF-1Eb, IGF-1Ec, and IGFBP-3 transcripts was found (1.7 ± 0.8, 1.5 ± 0.8, 2.0 ± 1.32.4 ± 1.4 fold changes, respectively; P < .05). Type I fibers increased by 21% (42 ± 10% to 51 ± 7%; P < .001) and capillary/fiber ratio increased by 24% (1.27 ± 0.22 to 1.57 ± 0.41; P = .005) in both groups as a whole. Fibers' mean CSA increased by 10% in total, but the increase in type I fibers' CSA was greater after AER than COM (15% vs 6%; P < .05). The increased CSA correlated with the increased expression of IGF-1Ea and IGF-1Εb. CONCLUSIONS HIIT reverses skeletal myopathy of HF patients, with the adaptive responses of the IGF-1 bioregulation system possibly contributing to these effects. AER program seemed to be superior to COM to induce muscle hypertrophy.
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Affiliation(s)
- Georgios Tzanis
- 1st Critical Care Medicine Department, Cardiopulmonary Exercise Testing and Rehabilitation Laboratory, "Evgenidio Hospital," National & Kapodistrian University of Athens, Greece
| | - Anastassios Philippou
- Department of Experimental Physiology, Medical School, National and Kapodistrian University of Athens, Greece
| | - Eleftherios Karatzanos
- 1st Critical Care Medicine Department, Cardiopulmonary Exercise Testing and Rehabilitation Laboratory, "Evgenidio Hospital," National & Kapodistrian University of Athens, Greece
| | - Stavros Dimopoulos
- 1st Critical Care Medicine Department, Cardiopulmonary Exercise Testing and Rehabilitation Laboratory, "Evgenidio Hospital," National & Kapodistrian University of Athens, Greece
| | - Elisavet Kaldara
- 3rd Cardiology Department, "Laiko" Hospital, National and Kapodistrian University of Athens, Greece
| | - Emmeleia Nana
- 3rd Cardiology Department, "Laiko" Hospital, National and Kapodistrian University of Athens, Greece
| | - Theodoros Pitsolis
- 1st Critical Care Medicine Department, Cardiopulmonary Exercise Testing and Rehabilitation Laboratory, "Evgenidio Hospital," National & Kapodistrian University of Athens, Greece
| | | | - Michael Koutsilieris
- Department of Experimental Physiology, Medical School, National and Kapodistrian University of Athens, Greece
| | - Serafim Nanas
- 1st Critical Care Medicine Department, Cardiopulmonary Exercise Testing and Rehabilitation Laboratory, "Evgenidio Hospital," National & Kapodistrian University of Athens, Greece.
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Potential Universal Application of High-intensity Interval Training from Athletes and Sports Lovers to Patients. Keio J Med 2016; 66:19-24. [PMID: 27498746 DOI: 10.2302/kjm.2016-0006-ir] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recently, high-intensity interval training (HIIT) has received much attention as a promising exercise option not only to improve aerobic fitness, but also to prevent and improve lifestyle-related diseases. Epidemiological studies have shown that the exercise volume, as determined by the product of exercise intensity, duration, and frequency, has been shown to be important for improvements in muscle mitochondrial activity and subsequent improvements in aerobic fitness, insulin sensitivity, and metabolic variables. Therefore, continuous moderate-intensity training has been widely recommended. On the other hand, the main contributor of HIIT to improvements in aerobic fitness and metabolic variables is its high-intensity nature, and many recent studies have shown results favoring HIIT when compared with conventional continuous training, despite its shorter exercise duration and smaller exercise volume. In this review, we aim to show the possible universal application of HIIT in a hospital setting, where athletes, sports lovers, and patients have sought medical advice and have the opportunity to undergo detailed evaluations, including an exercise stress test. For athletes, HIIT is mandatory to achieve further improvements in aerobic fitness. For patients, though higher levels of motivation and careful evaluation are required, the time constraints of HIIT are smaller and both aerobic and resistance training can be expected to yield favorable results because of the high-intensity nature of HIIT.
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Paes LS, Borges JP, Cunha FA, Souza MGC, Cyrino FZGA, Bottino DA, Bouskela E, Farinatti P. Oxygen uptake, respiratory exchange ratio, or total distance: a comparison of methods to equalize exercise volume in Wistar rats. ACTA ACUST UNITED AC 2016; 49:S0100-879X2016000800607. [PMID: 27487418 PMCID: PMC4974018 DOI: 10.1590/1414-431x20165200] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 03/10/2016] [Indexed: 12/23/2022]
Abstract
This study compared strategies to equalize the volume of aerobic exercise performed
with different intensities by Wistar rats, based on the distance covered during
exercise bouts and energy expenditure (EE, isocaloric sessions) obtained from oxygen
uptake (V̇O2) or respiratory exchange ratio (RER). Thirty-three male rats
(270.5±12.8 g) underwent maximal exercise tests to determine V̇O2 reserve
(V̇O2R), being randomly assigned to three groups: moderate-intensity
continuous exercise at speed corresponding to 50% V̇O2R (MIC; n=11);
high-intensity continuous exercise at 80% V̇O2R (HIC; n=11); and
high-intensity intermittent exercise (HII; n=11) at 60% V̇O2R (3 min) and
80% V̇O2R (4 min). Exercise duration was calculated individually to elicit
EE of 5 kcal in each session. No difference between groups was found for total
running distance (MIC: 801±46, HIC: 734±42, HII: 885±64 m; P=0.13). Total EE measured
by RER was systematically underestimated compared to values obtained from
V̇O2 (HII: 4.5% and MIC: 6.2%, P<0.05). Total EE (calculated from
V̇O2), and duration of HIC bouts (2.8 kcal and 30.8±2.2 min) were lower
(P<0.0001) than in MIC (4.9 kcal and 64.7±1.8 min) and HII (4.7 kcal and 46.9±2.2
min). Predicted and actual values of total V̇O2, total EE, and duration of
isocaloric sessions were similar in MIC and HII (P>0.05), which were both higher
than in HIC (P<0.0001). In conclusion, the time to achieve a given EE in exercise
bouts with different intensities did not correspond to the total distance. Therefore,
the volume of aerobic exercise in protocols involving Wistar rats should be equalized
using EE rather than total covered distance.
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Affiliation(s)
- L S Paes
- Laboratório de Atividade Física e Promoção da Saúde, Instituto de Educação Física e Desportos, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.,Laboratório de Pesquisa Clínica e Experimental em Biologia Vascular, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - J P Borges
- Laboratório de Atividade Física e Promoção da Saúde, Instituto de Educação Física e Desportos, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - F A Cunha
- Laboratório de Atividade Física e Promoção da Saúde, Instituto de Educação Física e Desportos, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - M G C Souza
- Laboratório de Pesquisa Clínica e Experimental em Biologia Vascular, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - F Z G A Cyrino
- Laboratório de Pesquisa Clínica e Experimental em Biologia Vascular, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - D A Bottino
- Laboratório de Pesquisa Clínica e Experimental em Biologia Vascular, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - E Bouskela
- Laboratório de Pesquisa Clínica e Experimental em Biologia Vascular, Centro Biomédico, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | - P Farinatti
- Laboratório de Atividade Física e Promoção da Saúde, Instituto de Educação Física e Desportos, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil.,Programa de Pós-Graduação em Ciências da Atividade Física, Universidade Salgado de Oliveira, Niterói, RJ, Brasil
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Pattyn N, Cornelissen VA, Buys R, Lagae AS, Leliaert J, Vanhees L. Are aerobic interval training and continuous training isocaloric in coronary artery disease patients? Eur J Prev Cardiol 2016; 23:1486-95. [DOI: 10.1177/2047487316645468] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 03/31/2016] [Indexed: 11/16/2022]
Affiliation(s)
- Nele Pattyn
- Department of Rehabilitation Sciences, KU Leuven, Belgium
| | | | - Roselien Buys
- Department of Rehabilitation Sciences, KU Leuven, Belgium
| | | | | | - Luc Vanhees
- Department of Rehabilitation Sciences, KU Leuven, Belgium
- Department of Cardiovascular Diseases, University Hospitals of Leuven, Belgium
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Tucker WJ, Sawyer BJ, Jarrett CL, Bhammar DM, Gaesser GA. Physiological Responses to High-Intensity Interval Exercise Differing in Interval Duration. J Strength Cond Res 2016; 29:3326-35. [PMID: 25970496 DOI: 10.1519/jsc.0000000000001000] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
We determined the oxygen uptake (V[Combining Dot Above]O2), heart rate (HR), and blood lactate responses to 2 high-intensity interval exercise protocols differing in interval length. On separate days, 14 recreationally active males performed a 4 × 4 (four 4-minute intervals at 90-95% HRpeak, separated by 3-minute recovery at 50 W) and 16 × 1 (sixteen 1-minute intervals at 90-95% HRpeak, separated by 1-minute recovery at 50 W) protocol on a cycle ergometer. The 4 × 4 elicited a higher mean V[Combining Dot Above]O2 (2.44 ± 0.4 vs. 2.36 ± 0.4 L·min) and "peak" V[Combining Dot Above]O2 (90-99% vs. 76-85% V[Combining Dot Above]O2peak) and HR (95-98% HRpeak vs. 81-95% HRpeak) during the high-intensity intervals. Average power maintained was higher for the 16 × 1 (241 ± 45 vs. 204 ± 37 W), and recovery interval V[Combining Dot Above]O2 and HR were higher during the 16 × 1. No differences were observed for blood lactate concentrations at the midpoint (12.1 ± 2.2 vs. 10.8 ± 3.1 mmol·L) and end (10.6 ± 1.5 vs. 10.6 ± 2.4 mmol·L) of the protocols or ratings of perceived exertion (7.0 ± 1.6 vs. 7.0 ± 1.4) and Physical Activity Enjoyment Scale scores (91 ± 15 vs. 93 ± 12). Despite a 4-fold difference in interval duration that produced greater between-interval transitions in V[Combining Dot Above]O2 and HR and slightly higher mean V[Combining Dot Above]O2 during the 4 × 4, mean HR during each protocol was the same, and both protocols were rated similarly for perceived exertion and enjoyment. The major difference was that power output had to be reduced during the 4 × 4 protocol to maintain the desired HR.
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Affiliation(s)
- Wesley J Tucker
- 1Exercise Science and Health Promotion Program, Healthy Lifestyles Research Center, Arizona State University, Phoenix, Arizona; Departments of 2Kinesiology; 3Biology, Point Loma Nazarene University, San Diego, California; and 4Institute for Exercise and Environmental Medicine, Texas Southwestern Medical Center, Dallas, Texas
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Ross LM, Porter RR, Durstine JL. High-intensity interval training (HIIT) for patients with chronic diseases. JOURNAL OF SPORT AND HEALTH SCIENCE 2016; 5:139-144. [PMID: 30356536 PMCID: PMC6188712 DOI: 10.1016/j.jshs.2016.04.005] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2016] [Revised: 03/05/2016] [Accepted: 03/07/2016] [Indexed: 05/11/2023]
Abstract
Exercise training provides physiological benefits for both improving athletic performance and maintaining good health. Different exercise training modalities and strategies exist. Two common exercise strategies are high-intensity interval training (HIIT) and moderate-intensity continuous exercise training (MCT). HIIT was first used early in the 20th century and popularized later that century for improving performance of Olympic athletes. The primary premise underlying HIIT is that, compared to energy expenditure-matched MCT, a greater amount of work is performed at a higher intensity during a single exercise session which is achieved by alternating high-intensity exercise intervals with low-intensity exercise or rest intervals. Emerging research suggests that this same training method can provide beneficial effects for patients with a chronic disease and should be included in the comprehensive medical management plan. Accordingly, a major consideration in developing an individual exercise prescription for a patient with a chronic disease is the selection of an appropriate exercise strategy. In order to maximize exercise training benefits, this strategy should be tailored to the individual's need. The focus of this paper is to provide a brief summary of the current literature regarding the use of HIIT to enhance the functional capacity of individuals with cardiovascular, pulmonary, and diabetes diseases.
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Cui SF, Wang C, Yin X, Tian D, Lu QJ, Zhang CY, Chen X, Ma JZ. Similar Responses of Circulating MicroRNAs to Acute High-Intensity Interval Exercise and Vigorous-Intensity Continuous Exercise. Front Physiol 2016; 7:102. [PMID: 27047388 PMCID: PMC4796030 DOI: 10.3389/fphys.2016.00102] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 03/03/2016] [Indexed: 01/08/2023] Open
Abstract
High-intensity interval exercise (HIIE) has been reported to be more beneficial for physical adaptation than low-to-moderate exercise intensity. Recently, it is becoming increasingly evident that circulating miRNAs (c-miRNAs) may distinguish between specific stress signals imposed by variations in the duration, modality, and type of exercise. The aim of this study is to investigate whether or not HIIE is superior to vigorous-intensity continuous exercise (VICE), which is contributing to develop effective fitness assessment. Twenty-six young males were enrolled, and plasma samples were collected prior to exercise and immediately after HIIE or distance-matched VICE. The miRNA level profiles in HIIE were initially determined using TaqMan Low Density Array (TLDA). And the differentially miRNAs levels were validated by stem-loop quantitative reverse-transcription PCR (RT-qPCR). Furthermore, these selective c-miRNAs were measured for VICE. Our results showed that some muscle-related miRNAs levels in the plasma, such as miR-1, miR-133a, miR-133b, and miR-206 significantly increased following HIIE or VICE compared to those at rest (P < 0.05), and there was only a significant reduction in miR-1 level for HIIE compared to VICE (P < 0.05), while no significant differences were observed for other muscle-related miRNAs between both exercises (P > 0.05). In addition, some tissue-related or unknown original miRNA levels, such as miR-485-5p, miR-509-5p, miR-517a, miR-518f, miR-520f, miR-522, miR-553, and miR-888, also significantly increased (P < 0.05) in both exercises compared to rest. However, no significant differences were found between both exercises (P > 0.05). Overall, endurance exercise assessed in this study both led to significant increases in selective c-miRNAs of comparable magnitude, suggesting that both types of endurance exercise have general stress processes. Accordingly, the similar responses to both acute exercises likely indicate both exercises can be used interchangeably. Further work is needed to reveal the functional significance and signaling mechanisms behind changes in c-miRNA turnover during exercise.
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Affiliation(s)
- Shu F Cui
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University Nanjing, China
| | - Cheng Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing UniversityNanjing, China; Department of Clinical Laboratory, Jinling HospitalNanjing, China
| | - Xin Yin
- The Lab of Military Conditioning and Motor Function Assessment, The PLA University of Science and Technology Nanjing, China
| | - Dong Tian
- The Lab of Military Conditioning and Motor Function Assessment, The PLA University of Science and Technology Nanjing, China
| | - Qiu J Lu
- The Lab of Military Conditioning and Motor Function Assessment, The PLA University of Science and Technology Nanjing, China
| | - Chen Y Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University Nanjing, China
| | - Xi Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing University Nanjing, China
| | - Ji Z Ma
- State Key Laboratory of Pharmaceutical Biotechnology, Collaborative Innovation Center of Chemistry for Life Sciences, Jiangsu Engineering Research Center for MicroRNA Biology and Biotechnology, NJU Advanced Institute for Life Sciences (NAILS), School of Life Sciences, Nanjing UniversityNanjing, China; The Lab of Military Conditioning and Motor Function Assessment, The PLA University of Science and TechnologyNanjing, China
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Safiyari-Hafizi H, Taunton J, Ignaszewski A, Warburton DER. The Health Benefits of a 12-Week Home-Based Interval Training Cardiac Rehabilitation Program in Patients With Heart Failure. Can J Cardiol 2016; 32:561-7. [PMID: 26923235 DOI: 10.1016/j.cjca.2016.01.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Revised: 01/27/2016] [Accepted: 01/27/2016] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND Recently, high-intensity interval training has been advocated for the rehabilitation of persons living with heart failure (HF). Home-based training is more convenient for many patients and could augment compliance. However, the safety and efficacy of home-based interval training remains unclear. METHODS We evaluated the safety and efficacy of a supervised home-based exercise program involving a combination of interval and resistance training. Measures of aerobic power, endurance capacity, ventilatory threshold, and quality of life in 40 patients with HF, were taken at baseline and after 12 weeks. Patients were matched and randomized to either control (CTL; n = 20) or experimental (EXP; n = 20) conditions. The EXP group underwent a 12-week high-intensity interval and resistance training program while the CTL group maintained their usual activities of daily living. RESULTS In the EXP group, we found a significant improvement in aerobic power, endurance capacity, ventilatory threshold, and quality of life. There were no significant changes in the CTL group. CONCLUSIONS We have shown that a home-based cardiac rehabilitation program involving interval and resistance training is associated with improved aerobic capacity and quality of life in patients with HF. This research has important implications for the treatment of HF.
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Affiliation(s)
- Hedieh Safiyari-Hafizi
- Copeman Healthcare Centre, Vancouver, British Columbia, Canada; Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jack Taunton
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Experimental Medicine Program, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Andrew Ignaszewski
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Healthy Heart Program and Heart Function Clinic, St Paul's Hospital, Vancouver, British Columbia, Canada
| | - Darren E R Warburton
- Experimental Medicine Program, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Physical Activity Promotion and Chronic Disease Prevention Unit, University of British Columbia, Vancouver, British Columbia, Canada.
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Parfitt G, Olds T, Eston R. A hard/heavy intensity is too much: The physiological, affective, and motivational effects (immediately and 6 months post-training) of unsupervised perceptually regulated training. J Exerc Sci Fit 2015. [PMID: 29541110 DOI: 10.1016/j.jesf.2015.10.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background/Objective There are several practical and theoretical advantages to perceptually regulated training, including its simplicity of use and potential to influence exercise motivation. The study objective was to examine if perceptually regulated training at ratings of perceived exertion (RPE) of 13 and 15 resulted in significant increases in aerobic fitness, reductions in metabolic risk factors, and changes in motivational constructs following an 8-week training program and at follow up 6 months after. Methods Following stratified randomization based on estimated aerobic capacity and sex, sedentary volunteers (n = 63; men = 21) were allocated to one of three groups: RPE 13, RPE 15, and control. The participants completed baseline, post-training, and 6-months post-training assessments for aerobic fitness, metabolic risk factors, and motivational constructs. The participants' acute exercise training responses (affect, competence, enjoyment, and work rate) were also recorded. Results The data support the fitness and motivational construct hypotheses but not the metabolic risk factor hypothesis. Aerobic fitness increased from the baseline to post-training in both RPE groups, with the increase maintained 6 months post-training only in the RPE 13 group. Exercise autonomy increased over the training program, with exercise competence and affect more positive in the RPE 13 group than in the RPE 15. However, the training programs did not reduce the metabolic risk factors, and attrition levels were high. Unsupervised training at RPE 13 and RPE 15 did improve fitness, but as hypothesized, this was not maintained in the RPE 15 group 6 months post-training. Conclusion The motivational processes associated with RPE 13 regulated exercise (greater competence and autonomy and more positive affect) potentially explain the maintained fitness in this group.
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Affiliation(s)
- Gaynor Parfitt
- Alliance for Research in Exercise, Nutrition, and Activity, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Tim Olds
- Alliance for Research in Exercise, Nutrition, and Activity, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
| | - Roger Eston
- Alliance for Research in Exercise, Nutrition, and Activity, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia
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Pimenta M, Bringhenti I, Souza-Mello V, dos Santos Mendes IK, Aguila MB, Mandarim-de-Lacerda CA. High-intensity interval training beneficial effects on body mass, blood pressure, and oxidative stress in diet-induced obesity in ovariectomized mice. Life Sci 2015; 139:75-82. [DOI: 10.1016/j.lfs.2015.08.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 07/27/2015] [Accepted: 08/01/2015] [Indexed: 01/06/2023]
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Sandstad J, Stensvold D, Hoff M, Nes BM, Arbo I, Bye A. The effects of high intensity interval training in women with rheumatic disease: a pilot study. Eur J Appl Physiol 2015; 115:2081-9. [PMID: 26013051 DOI: 10.1007/s00421-015-3186-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 05/08/2015] [Indexed: 12/19/2022]
Abstract
PURPOSE Rheumatoid arthritis (RA) and juvenile idiopathic arthritis (JIA) are inflammatory diseases which involve increased risk of cardiovascular disease (CVD). High intensity interval training (HIIT) is known to be effective in improving cardiovascular health. The aim of this study was to investigate whether 10 weeks of HIIT at 85-95% of HRmax would improve important risk factors of CVD in rheumatic patients, and if these patients would tolerate exercise intensities above today's recommendations. METHODS Seven women with RA and eleven with adult-JIA, 20-50 years, were recruited to this cross-over study. Participants performed HIIT, consisting of 4 × 4 min intervals at 85-95% of HRmax twice a week for 10 weeks on spinning bikes. Maximal oxygen uptake (VO2max), heart rate recovery, blood pressure, body composition, and blood variables were measured before and after the exercise and control period. Disease activity was determined and questionnaire data were collected. RESULTS HIIT resulted in 12.2% increase in VO2max and 2.9% improvement in heart rate recovery (p < 0.05). BMI, body fat, and waist circumference decreased 1.2, 1.0, and 1.6%, respectively, whereas muscle mass increased 0.6% (p < 0.05). A trend toward decreased CRP was detected after HIIT (p = 0.08). No changes were detected in disease activity or pain. CONCLUSION Despite rigorous high intensity exercise, no increase was detected in disease activity or pain, indicating that HIIT was well tolerated by these patients. Furthermore, HIIT had positive effects on several CVD risk factors. In light of this pilot study, HIIT seems like a promising non-pharmacological treatment strategy for patients with RA and adult-JIA.
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Affiliation(s)
- Janne Sandstad
- Department of Circulation and Medical Imaging, Faculty of Medicine, Medical Technology Research Centre, KG Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology (NTNU), P.O. box 8905, 7491, Trondheim, Norway
| | - Dorthe Stensvold
- Department of Circulation and Medical Imaging, Faculty of Medicine, Medical Technology Research Centre, KG Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology (NTNU), P.O. box 8905, 7491, Trondheim, Norway
| | - Mari Hoff
- Department of Rheumatology, St. Olavs Hospital, Trondheim, Norway.,Department of Public Health and General Practice, Norwegian University of Science and Technology, Trondheim, Norway
| | - Bjarne M Nes
- Department of Circulation and Medical Imaging, Faculty of Medicine, Medical Technology Research Centre, KG Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology (NTNU), P.O. box 8905, 7491, Trondheim, Norway
| | - Ingerid Arbo
- Department of Circulation and Medical Imaging, Faculty of Medicine, Medical Technology Research Centre, KG Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology (NTNU), P.O. box 8905, 7491, Trondheim, Norway
| | - Anja Bye
- Department of Circulation and Medical Imaging, Faculty of Medicine, Medical Technology Research Centre, KG Jebsen Center of Exercise in Medicine, Norwegian University of Science and Technology (NTNU), P.O. box 8905, 7491, Trondheim, Norway. .,Norwegian Health Association, Oslo, Norway. .,St. Olavs Hospital, Trondheim, Norway.
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High Intensity Interval Training Favourably Affects Angiotensinogen mRNA Expression and Markers of Cardiorenal Health in a Rat Model of Early-Stage Chronic Kidney Disease. BIOMED RESEARCH INTERNATIONAL 2015; 2015:156584. [PMID: 26090382 PMCID: PMC4458272 DOI: 10.1155/2015/156584] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 04/03/2015] [Indexed: 12/19/2022]
Abstract
The majority of CKD-related complications stem from cardiovascular pathologies such as hypertension. To help reduce cardiovascular complications, aerobic exercise is often prescribed. Emerging evidence suggests high intensity interval training (HIIT) may be more beneficial than traditional aerobic exercise. However, appraisals of varying forms of aerobic exercise, along with descriptions of mechanisms responsible for health-related improvements, are lacking. This study examined the effects of 8 weeks of HIIT (85% VO2max), versus low intensity aerobic exercise (LIT; 45–50% VO2max) and sedentary behaviour (SED), in an animal model of early-stage CKD. Tissue-specific mRNA expression of RAAS-related genes and CKD-related clinical markers were examined. Compared to SED, HIIT resulted in increased plasma albumin (p = 0.001), reduced remnant kidney weight (p = 0.028), and reduced kidney weight-body weight ratios (p = 0.045). Compared to LIT, HIIT resulted in reduced Agt mRNA expression (p = 0.035), reduced plasma LDL (p = 0.001), triglycerides (p = 0.029), and total cholesterol (p = 0.002), increased plasma albumin (p = 0.047), reduced remnant kidney weight (p = 0.005), and reduced kidney weight-body weight ratios (p = 0.048). These results suggest HIIT is a more potent regulator of several markers that describe and influence health in CKD.
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Rawstorn JC, Gant N, Warren I, Doughty RN, Lever N, Poppe KK, Maddison R. Measurement and Data Transmission Validity of a Multi-Biosensor System for Real-Time Remote Exercise Monitoring Among Cardiac Patients. JMIR Rehabil Assist Technol 2015; 2:e2. [PMID: 28582235 PMCID: PMC5454552 DOI: 10.2196/rehab.3633] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 12/18/2014] [Accepted: 12/19/2014] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Remote telemonitoring holds great potential to augment management of patients with coronary heart disease (CHD) and atrial fibrillation (AF) by enabling regular physiological monitoring during physical activity. Remote physiological monitoring may improve home and community exercise-based cardiac rehabilitation (exCR) programs and could improve assessment of the impact and management of pharmacological interventions for heart rate control in individuals with AF. OBJECTIVE Our aim was to evaluate the measurement validity and data transmission reliability of a remote telemonitoring system comprising a wireless multi-parameter physiological sensor, custom mobile app, and middleware platform, among individuals in sinus rhythm and AF. METHODS Participants in sinus rhythm and with AF undertook simulated daily activities, low, moderate, and/or high intensity exercise. Remote monitoring system heart rate and respiratory rate were compared to reference measures (12-lead ECG and indirect calorimeter). Wireless data transmission loss was calculated between the sensor, mobile app, and remote Internet server. RESULTS Median heart rate (-0.30 to 1.10 b∙min-1) and respiratory rate (-1.25 to 0.39 br∙min-1) measurement biases were small, yet statistically significant (all P≤.003) due to the large number of observations. Measurement reliability was generally excellent (rho=.87-.97, all P<.001; intraclass correlation coefficient [ICC]=.94-.98, all P<.001; coefficient of variation [CV]=2.24-7.94%), although respiratory rate measurement reliability was poor among AF participants (rho=.43, P<.001; ICC=.55, P<.001; CV=16.61%). Data loss was minimal (<5%) when all system components were active; however, instability of the network hosting the remote data capture server resulted in data loss at the remote Internet server during some trials. CONCLUSIONS System validity was sufficient for remote monitoring of heart and respiratory rates across a range of exercise intensities. Remote exercise monitoring has potential to augment current exCR and heart rate control management approaches by enabling the provision of individually tailored care to individuals outside traditional clinical environments.
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Affiliation(s)
- Jonathan C Rawstorn
- National Institute for Health Innovation, University of Auckland, Auckland, New Zealand
- Department of Sport and Exercise Science, University of Auckland, Auckland, New Zealand
| | - Nicholas Gant
- Department of Sport and Exercise Science, University of Auckland, Auckland, New Zealand
| | - Ian Warren
- Department of Computer Science, University of Auckland, Auckland, New Zealand
| | | | - Nigel Lever
- Department of Medicine, University of Auckland, Auckland, New Zealand
| | - Katrina K Poppe
- Department of Medicine, University of Auckland, Auckland, New Zealand
| | - Ralph Maddison
- National Institute for Health Innovation, University of Auckland, Auckland, New Zealand
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Pelletier CA, Totosy de Zepetnek JO, MacDonald MJ, Hicks AL. A 16-week randomized controlled trial evaluating the physical activity guidelines for adults with spinal cord injury. Spinal Cord 2014; 53:363-7. [PMID: 25266695 DOI: 10.1038/sc.2014.167] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 07/22/2014] [Accepted: 08/27/2014] [Indexed: 11/09/2022]
Abstract
STUDY DESIGN Randomized controlled trial. OBJECTIVES To evaluate the effectiveness of the physical activity guidelines (PAG) for adults with spinal cord injury (SCI) to improve aspects of physical fitness. SETTING Community exercise facility. METHODS Twenty-three participants (age: 40.4±11.6 years, C1-T11, 12.0±10.0 years post injury) were randomized into PAG training (n=12) or active control (CON, n=11) groups. PAG training was 2x per week for 16 weeks and involved 20 min of aerobic exercise at a moderate to vigorous intensity and three sets of 10 repetitions (at 50-70% 1 repetition maximum; 1RM). Pre- and post-testing included peak exercise and aerobic endurance tests on an arm ergometer and 1RM testing. RESULTS Nineteen participants (PAG, n=11; CON, n=8) completed the 16-week training program and post-testing. There was a significant (P<0.05) increase in peak aerobic capacity (relative VO2peak: 17.2%, absolute VO2peak: 9.9%) and submaximal power output (26.3%) in the PAG group only. Increases in strength ranged from 11.5-38.9% and were significantly (P<0.05) different from CON for vertical bench press, seated row, and rickshaw press. Adherence to the exercise program was 85.2±8.3% for PAG, 44.4±34.3% for CON (P<0.01). CONCLUSION The PAG for adults with SCI are sufficient to improve aspects of aerobic and muscular fitness and should be promoted as a means to improve physical capacity. SPONSORSHIP Ontario Neurotrauma Foundation (ONF), Natural Sciences and Engineering Research Council (NSERC) of Canada.
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Affiliation(s)
- C A Pelletier
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | | | - M J MacDonald
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
| | - A L Hicks
- Department of Kinesiology, McMaster University, Hamilton, Ontario, Canada
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Madssen E, Arbo I, Granøien I, Walderhaug L, Moholdt T. Peak oxygen uptake after cardiac rehabilitation: a randomized controlled trial of a 12-month maintenance program versus usual care. PLoS One 2014; 9:e107924. [PMID: 25247991 PMCID: PMC4172571 DOI: 10.1371/journal.pone.0107924] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 08/14/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Exercise capacity is a strong predictor of survival in patients with coronary artery disease (CAD). Exercise capacity improves after cardiac rehabilitation exercise training, but previous studies have demonstrated a decline in peak oxygen uptake after ending a formal rehabilitation program. There is a lack of knowledge on how long-term exercise adherence can be achieved in CAD patients. We therefore assessed if a 12-month maintenance program following cardiac rehabilitation would lead to increased adherence to exercise and increased exercise capacity compared to usual care. MATERIALS AND METHODS Two-centre, open, parallel randomized controlled trial with 12 months follow-up comparing usual care to a maintenance program. The maintenance program consisted of one monthly supervised high intensity interval training session, a written exercise program and exercise diary, and a maximum exercise test every third month during follow-up. Forty-nine patients (15 women) on optimal medical treatment were included following discharge from cardiac rehabilitation. The primary endpoint was change in peak oxygen uptake at follow-up; secondary endpoints were physical activity level, quality of life and blood markers of cardiovascular risk. RESULTS There was no change in peak oxygen uptake from baseline to follow-up in either group (intervention group 27.9 (±4.7) to 28.8 (±5.6) mL·kg (-1) min (-1), control group 32.0 (±6.2) to 32.8 (±5.8) mL·kg (-1) min (-1), with no between-group difference, p = 0.22). Quality of life and blood biomarkers remained essentially unchanged, and both self-reported and measured physical activity levels were similar between groups after 12 months. CONCLUSIONS A maintenance exercise program for 12 months did not improve adherence to exercise or peak oxygen uptake in CAD patients after discharge from cardiac rehabilitation compared to usual care. This suggests that infrequent supervised high intensity interval training sessions are inadequate to improve peak oxygen uptake in this patient group. TRIAL REGISTRATION ClinicalTrials.gov NCT01246570.
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Affiliation(s)
- Erik Madssen
- K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Pulmonary Medicine, St. Olavs Hospital, Trondheim, Norway
| | - Ingerid Arbo
- K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | | | | | - Trine Moholdt
- K.G. Jebsen Center of Exercise in Medicine, Department of Circulation and Medical Imaging, Faculty of Medicine, Norwegian University of Science and Technology, Trondheim, Norway
- Women's Clinic, St. Olavs Hospital, Trondheim, Norway
- * E-mail:
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