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Lu F, Berkowitz J, Gaw A, Salvador V, DeAngelis J, Wu WC. Effect of Masking Secondary to the COVID-19 Pandemic on Functional Capacity Improvement in Cardiac Rehabilitation. J Cardiopulm Rehabil Prev 2024; 44:317-323. [PMID: 39230364 DOI: 10.1097/hcr.0000000000000873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/05/2024]
Abstract
PURPOSE Given the difficulty to perform exercise training wearing a mask, we examined differences in functional capacity improvement between masking during the coronavirus disease 2019 (COVID-19) pandemic and non-masking prior to the pandemic for patients undergoing cardiac rehabilitation (CR). METHODS Records of 660 patients who underwent and completed ≥ 18 sessions of CR in 2018 (n = 318, non-masking) and in 2022 (n = 342, masking) at an academic health system were analyzed. The primary outcome was post-CR change in functional capacity in metabolic equivalents (MET) measured by exercise stress test. Sessions of CR participation and changes in depression, anxiety, and quality of life scores were secondary outcomes. We used multivariable linear regression to adjust for differences in baseline CR outcome measures, demographics, American Association of Cardiovascular and Pulmonary Rehabilitation (AACVPR) risk, and comorbid conditions. RESULTS Baseline age (64.6 ± 0.46 yr), sex (28% female), and racial distribution (85% white) were similar between the masking and non-masking groups. Non-masking patients were more likely to be classified in the AACVPR high risk category and had lower anxiety scores at baseline compared to masking patients. After CR, both groups had similar and significant improvements in depression, anxiety, and quality of life scores, but the improvement in functional capacity was lower in the masking group (-0.62 ± 0.12 MET, P < .001) compared to the non-masking group. Results remained significant after multivariable adjustment. CONCLUSIONS Cardiac rehabilitation patients requiring masking during the COVID-19 pandemic had less improvement in functional capacity than patients who did not wear masks during CR prior to the pandemic. Interventions to mitigate the potential side effects of masking for CR patients may require further exploration.
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Affiliation(s)
- Frederick Lu
- Author Affiliations : Department of Medicine (Drs Lu, Berkowitz, Salvador, and Wu), Center for Cardiac Fitness, Cardiovascular Institute, Miriam Hospital (Mss Gaw and DeAngelis and Dr Wu), Warren Alpert Medical School of Brown University, Providence, RI and Department of Medicine (Drs Berkowitz, Salvador, and Wu), Division of Cardiology (Dr Wu), Providence Veterans Affairs Medical Center, Providence, RI
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Armstrong R, Murphy G, Wheen P, Brandon L, Kenny RA, Maree AO. Speed of Heart Rate Recovery After Orthostatic Stress as a Modifiable Risk Factor During Cardiac Rehabilitation. J Cardiopulm Rehabil Prev 2024; 44:E64-E65. [PMID: 39240678 DOI: 10.1097/hcr.0000000000000882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/07/2024]
Affiliation(s)
- Richard Armstrong
- Author Affiliations: Department of Cardiology, St James's Hospital, Dublin, Ireland (Drs Armstrong, Murphy, and Brandon, Mr Maree, and Dr Wheen); and Mercers Institute for Successful Aging, St James's Hospital and Trinity College, Dublin, Ireland (Ms Kenny)
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Khadanga S, Savage P, Keteyian S, Yant B, Gaalema D, Ades P. Cardiac rehabilitation: the gateway for secondary prevention. Heart 2024:heartjnl-2023-323152. [PMID: 38302263 DOI: 10.1136/heartjnl-2023-323152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2024] Open
Abstract
Cardiac rehabilitation (CR) is a multidisciplinary supervised programme which typically consists of tailored exercise and education on lifestyle management and risk factor modification in cardiac patients. Participation in CR reduces morbidity and mortality, while improving quality of life following major cardiovascular events. Despite the benefits of CR, it is underutilised, generally in the 20%-30% range for eligible patients. Participation and adherence rates are particularly suboptimal in vulnerable populations, such as those of lower socioeconomic status and women. Interventions such as automated referral to CR or hybrid/virtual programmes can increase enrolment to CR. This review summarises the components of CR and provides recommendations for providers regarding participation and adherence. To better engage a larger proportion of CR-eligible patients, CR programmes may need to expand or adjust ways to deliver secondary prevention.
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Affiliation(s)
| | - Patrick Savage
- Medicine, University of Vermont, Burlington, Vermont, USA
| | - Steven Keteyian
- Preventive Cardiology, Henry Ford Hospital, Detroit, Michigan, USA
| | - Blair Yant
- Psychiatry, University of Vermont, Burlington, Vermont, USA
| | - Diann Gaalema
- Psychiatry, University of Vermont, Burlington, Vermont, USA
| | - Philip Ades
- Medicine, University of Vermont, Burlington, Vermont, USA
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Wang Y, Wang Y, Liu T, Qin Y, Tang F, Zhang X, Li Y. Association between endothelin-1, nitric oxide, and Gensini score in chronic coronary syndrome. BMC Cardiovasc Disord 2023; 23:602. [PMID: 38066423 PMCID: PMC10704739 DOI: 10.1186/s12872-023-03625-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Chronic coronary syndrome (CCS) is a major public health burden; its pathogenesis involves atherosclerosis and endothelial dysfunction. Endothelin-1 (ET-1) and nitric oxide (NO) are vasoactive substances synthesized by endothelial cells that play a crucial role in CCS development. The Gensini score (GS) is used for evaluating CCS severity based on lumen segment changes, stenosis degree, and coronary stenosis site. METHODS This prospective study included 71 patients with CCS; we evaluated the relationships between GS and ET-1 and NO serum levels were evaluated in these patients. The GS was calculated for all patients. Serum ET-1 & NO levels among other laboratory parameters were measured. RESULTS The high GS group had higher ET-1 and relatively NO expressions in the than the low GS group. GS was positively correlated with ET-1 and negatively correlated with NO, T4, and TSH levels. The results of the multiple linear regression analysis showed that ET-1 had the most significant effect on GS. CONCLUSIONS We found a strong association between ET-1, NO, and CCS severity. A combination of ET-1, NO, and GS is an essential predictor of CCS disease severity.
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Affiliation(s)
- Yujin Wang
- Lanzhou University Second College of Clinical Medicine, Lanzhou, China
- Department of Cardiology, Lanzhou University Second Hospital, #82 Cuiyingmen, Lanzhou, 730030, China
- School of Nursing, Lanzhou University, Lanzhou, Gansu, China
| | - Yuqin Wang
- Lanzhou University Second College of Clinical Medicine, Lanzhou, China
| | - Tiaoxia Liu
- Department of Cardiology, Lanzhou University Second Hospital, #82 Cuiyingmen, Lanzhou, 730030, China
| | - Yifan Qin
- Department of Cardiology, Lanzhou University Second Hospital, #82 Cuiyingmen, Lanzhou, 730030, China
| | - Futian Tang
- Lanzhou University Second College of Clinical Medicine, Lanzhou, China
- Department of Cardiology, Lanzhou University Second Hospital, #82 Cuiyingmen, Lanzhou, 730030, China
| | - Xiaowei Zhang
- Lanzhou University Second College of Clinical Medicine, Lanzhou, China.
- Department of Cardiology, Lanzhou University Second Hospital, #82 Cuiyingmen, Lanzhou, 730030, China.
| | - Yongnan Li
- Lanzhou University Second College of Clinical Medicine, Lanzhou, China.
- Department of Cardiology, Lanzhou University Second Hospital, #82 Cuiyingmen, Lanzhou, 730030, China.
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5
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Keteyian SJ, Steenson K, Grimshaw C, Mandel N, Koester-Qualters W, Berry R, Kerrigan DJ, Ehrman JK, Peterson EL, Brawner CA. Among Patients Taking Beta-Adrenergic Blockade Therapy, Use Measured (Not Predicted) Maximal Heart Rate to Calculate a Target Heart Rate for Cardiac Rehabilitation. J Cardiopulm Rehabil Prev 2023; 43:427-432. [PMID: 37311037 PMCID: PMC10615658 DOI: 10.1097/hcr.0000000000000806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
PURPOSE Among patients in cardiac rehabilitation (CR) on beta-adrenergic blockade (βB) therapy, this study describes the frequency for which target heart rate (THR) values computed using a predicted maximal heart rate (HR max ), correspond to a THR computed using a measured HR max in the guideline-based heart rate reserve (HR reserve ) method. METHODS Before CR, patients completed a cardiopulmonary exercise test to measure HR max , with the data used to determine THR via the HR reserve method. Additionally, predicted HR max was computed for all patients using the 220 - age equation and two disease-specific equations, with the predicted values used to calculate THR via the straight percent and HR reserve methods. The THR was also computed using resting heart rate (HR) +20 and +30 bpm. RESULTS Mean predicted HR max using the 220 - age equation (161 ± 11 bpm) and the disease-specific equations (123 ± 9 bpm) differed ( P < .001) from measured HR max (133 ± 21 bpm). Also, THR computed using predicted HR max resulted in values that were infrequently within the guideline-based HR reserve range calculated using measured HR max . Specifically, 0 to ≤61% of patients would have had an exercise training HR that fell within the guideline-based range of 50-80% of measured HR reserve . Use of standing resting HR +20 or +30 bpm would have resulted in 100% and 48%, respectively, of patients exercising below 50% of HR reserve . CONCLUSIONS A THR computed using either predicted HR max or resting HR +20 or +30 bpm seldom results in a prescribed exercise intensity that is consistent with guideline recommendations for patients in CR.
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Affiliation(s)
| | | | - Crystal Grimshaw
- Division of Cardiovascular Medicine, Henry Ford Health, Detroit, MI
| | - Noah Mandel
- Division of Cardiovascular Medicine, Henry Ford Health, Detroit, MI
| | | | - Robert Berry
- Division of Cardiovascular Medicine, Henry Ford Health, Detroit, MI
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Harber MP. Missing the Target: HOW OFTEN IS EXERCISE INTENSITY APPROPRIATELY PRESCRIBED IN CARDIAC REHABILITATION? J Cardiopulm Rehabil Prev 2023; 43:398-399. [PMID: 37890175 DOI: 10.1097/hcr.0000000000000830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Affiliation(s)
- Matthew P Harber
- Clinical Exercise Physiology Program, Ball State University, Muncie, Indiana
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Way KL, Thomas HJ, Parker L, Maiorana A, Keske MA, Scott D, Reed JL, Tieng J, Hackett D, Hawkins T, Latella C, Cordina R, Tran DL. Cluster Sets to Prescribe Interval Resistance Training: A Potential Method to Optimise Resistance Training Safety, Feasibility and Efficacy in Cardiac Patients. SPORTS MEDICINE - OPEN 2023; 9:86. [PMID: 37725296 PMCID: PMC10509118 DOI: 10.1186/s40798-023-00634-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 09/04/2023] [Indexed: 09/21/2023]
Abstract
The integration of resistance training for cardiac patients leads to important health outcomes that are not optimally obtained with aerobic exercise; these include an increase in muscle mass, maintenance of bone mineral density, and improvements in muscular fitness parameters. Despite the proliferation of evidence supporting resistance exercise in recent decades, the implementation of resistance training is underutilised, and prescription is often sub-optimal in cardiac patients. This is frequently associated with safety concerns and inadequate methods of practical exercise prescription. This review discusses the potential application of cluster sets to prescribe interval resistance training in cardiac populations. The addition of planned, regular passive intra-set rest periods (cluster sets) in resistance training (i.e., interval resistance training) may be a practical solution for reducing the magnitude of haemodynamic responses observed with traditional resistance training. This interval resistance training approach may be a more suitable option for cardiac patients. Additionally, many cardiac patients present with impaired exercise tolerance; this model of interval resistance training may be a more suitable option to reduce fatigue, increase patient tolerance and enhance performance to these workloads. Practical strategies to implement interval resistance training for cardiac patients are also discussed. Preliminary evidence suggests that interval resistance training may lead to safer acute haemodynamic responses in cardiac patients. Future research is needed to determine the efficacy and feasibility of interval resistance training for health outcomes in this population.
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Affiliation(s)
- Kimberley L Way
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3125, Australia.
- Exercise Physiology and Cardiovascular Health Lab, Division of Cardiac Prevention and Rehabilitation, University of Ottawa Heart Institute, Ottawa, ON, Canada.
| | - Hannah J Thomas
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3125, Australia
| | - Lewan Parker
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3125, Australia
| | - Andrew Maiorana
- Curtin School of Allied Health, Curtin University, Perth, WA, Australia
- Allied Health Department, Fiona Stanley Hospital, Perth, WA, Australia
| | - Michelle A Keske
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3125, Australia
| | - David Scott
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, 3125, Australia
- School of Clinical Sciences at Monash Health, Monash University, Clayton, VIC, Australia
| | - Jennifer L Reed
- Exercise Physiology and Cardiovascular Health Lab, Division of Cardiac Prevention and Rehabilitation, University of Ottawa Heart Institute, Ottawa, ON, Canada
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- School of Human Kinetics, Faculty of Health Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Jessica Tieng
- Epigenetics and RNA Biology Program, Centenary Institute, Camperdown, NSW, Australia
- Central Clinical School, The University of Sydney School of Medicine, Camperdown, NSW, 2006, Australia
| | - Daniel Hackett
- Discipline of Exercise and Sports Science, Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, Australia
| | - Tess Hawkins
- Concord Centre for STRONG Medicine, Concord Repatriation General Hospital, Concord West, NSW, Australia
| | - Christopher Latella
- School of Health and Medical Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - Rachael Cordina
- Central Clinical School, The University of Sydney School of Medicine, Camperdown, NSW, 2006, Australia
- Department of Cardiology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
- Charles Perkins Centre, Heart Research Institute, Camperdown, NSW, Australia
| | - Derek L Tran
- Central Clinical School, The University of Sydney School of Medicine, Camperdown, NSW, 2006, Australia.
- Department of Cardiology, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.
- Charles Perkins Centre, Heart Research Institute, Camperdown, NSW, Australia.
- Human Performance Research Centre, School of Sport, Exercise and Rehabilitation, Faculty of Health, University of Technology Sydney, Moore Park, NSW, Australia.
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Luo Q, Zhuang B, Li G, Jiang Y, Wang Q, Yuan J, Cheng J, Shen T, Zhan M, Li D, Zha Y, Luo L, Wang L, Song H, Shen Y. Consistency evaluation of exercise target heart rate determined by resting heart rate and anaerobic threshold in chronic heart failure patients. Int J Cardiol 2023; 381:52-56. [PMID: 37001647 DOI: 10.1016/j.ijcard.2023.03.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 03/23/2023] [Accepted: 03/27/2023] [Indexed: 04/17/2023]
Abstract
PURPOSE To evaluate the consistency on the target heart rate for exercise determined by simple target heart rate (sTHR) based on resting heart rate (HRrest) and heart rate at anaerobic threshold (HRAT) in cardiopulmonary exercise test (CPET) for patients with chronic heart failure. METHODS This is a retrospective cohort study, in which CHF patients who underwent CPET in Tongji Hospital Cardiac Rehabilitation Center Affiliated to Tongji University from March 2007 to December 2018 were enrolled. The clinical data of the patients from the electronic medical record system, HRrest and HRAT measured by CPET were collected. Patients were further divided into subgroups according to gender, age (<60 years group and ≥ 60 years group), with or without beta-blocker therapy and subgroup of heart failure (heart failure with reduced, mid-range and preserved ejection fraction). The sTHR (HRrest plus 10, 15, 20, 25 and 30 bpm) and HRAT were all calculated in each patient. Paired t-test was used for the difference between the two methods, correlation analysis was shown by pearson analysis and intraclass correlation coefficient (ICC) was calculated for consistency test. RESULTS A total of 547 CHF patients were enrolled, including 447 males (81.7%), aged 63 (56,69) years, with BMI of 25.2 (23.5,26.4) kg/m2 and LVEF of 45.0 (36.0, 52.0) %. The target heart rate determined by HRAT method was (93.59 ± 13.95) bpm, and its counterpart determined by HRrest plus 20 bpm (HRrest+20) was (93.16 ± 7.69) bpm. There was no significant difference between the two methods (P>0.05). However, it was statistically different between HRrest plus 10, 15, 25, 30 bpm and HRAT respectively (P<0.001). And HRrest+20 was positively correlated with HRAT (r = 0.418, P<0.001). Therefore, HRrest+20 below was regarded as sTHR. The ICC of the consistency test between sTHR and HRAT was 0.523,95%CI 0.435-0.596 (P < 0.001) in all patients (n = 547). In patients with beta-blocker therapy (n = 464), the ICC of sTHR and HRAT consistency test was 0.534,95%CI 0.441-0.612, P < 0.001; The ICC of the consistency test between sTHR and HRAT of patients without beta-blocker therapy (n = 83) was 0.407,95%CI 0.083-0.616, P < 0.05. In the sinus rhythm group (n = 466), the ICC of sTHR and HRAT consistency test was 0.527,95%CI 0.433-0.606, P < 0.001; The ICC of the consistency test between sTHR and HRAT of atrial fibrillation patients in group (n = 81) was 0.482,95%CI 0.195-0.667, P < 0.05.The ICC of the consistency test between sTHR and HRAT was 0.501,95%CI 0.338-0.623 (P < 0.001) in patients under 60 years old (n = 195); The ICC of the consistency test between sTHR and HRAT in patients ≥60 years old (n = 352) was 0.533,95%CI 0.424-0.621, P < 0.001. In the male group (n = 447), the ICC of sTHR and HRAT consistency test was 0.577,95%CI 0.491-0.649, P < 0.001; The ICC of the consistency test between sTHR and HRAT of female patients in group (n = 100) was 0.344,95%CI 0.025-0.559, P < 0.05. The ICC of sTHR and HRAT consistency test in HFrEF group (n = 170) was 0.395,95%CI 0.181-0.553, P < 0.01; The ICC values of the consistency test between sTHR and HRAT was 0.543, 95%CI 0.405-0.649 (P < 0.001) in patients with HFmrEF (n = 222); In HFpEF group (n = 155), the ICC of sTHR and HRAT consistency test was 0.620,95%CI 0.478-0.723, P < 0.001. CONCLUSION The exercise target heart rate calculated by HRrest is consistent with that determined by HRAT in patients with CHF. For primary hospitals without CPET, exercise prescription equivalent to AT intensity for patients with CHF can be determined by HRrest. However, the target heart rate calculated by HRrest can't replace that determined by HRAT in this patient cohort completely.
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Affiliation(s)
- Qian Luo
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Bo Zhuang
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Guanghe Li
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Yumei Jiang
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Qiuheng Wang
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Jue Yuan
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Jingjing Cheng
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Ting Shen
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Mengyi Zhan
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Dejie Li
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Yijie Zha
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Lin Luo
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China
| | - Lemin Wang
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China.
| | - Haoming Song
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China.
| | - Yuqin Shen
- Department of Cardiac Rehabilitation, Tongji Hospital Affiliated to Tongji University, Tongji University School of Medicine, Shanghai 200065, China.
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Iannetta D, Rouleau CR, Chirico D, Fontana FY, Hauer T, Wilton SB, Aggarwal S, Austford LD, Arena R, Murias JM. An evaluation of the role of the exercise training dose for changes in exercise capacity following a standard cardiac rehabilitation program. Int J Cardiol 2023; 379:104-110. [PMID: 36934989 DOI: 10.1016/j.ijcard.2023.03.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/21/2023] [Accepted: 03/16/2023] [Indexed: 03/21/2023]
Abstract
BACKGROUND To retrospectively characterize and compare the dose of exercise training (ET) within a large cohort of patients demonstrating different levels of improvement in exercise capacity following a cardiac rehabilitation (CR) program. METHODS A total of 2310 patients who completed a 12-week, center-based, guidelines-informed CR program between January 2018 and December 2019 were included in the analysis. Peak metabolic equivalents (METpeak) were determined pre- and post-CR during which total duration (ET time) and intensity [percent of heart rate peak (%HRpeak)] of supervised ET were also obtained. Training responsiveness was quantified on the basis of changes in METpeak from pre- to post-CR. A cluster analysis was performed to identity clusters demonstrating discrete levels of responsiveness (i.e., negative, low, moderate, high, and very-high). These were compared for several baseline and ET-derived variables which were also included in a multivariable linear regression model. RESULTS At pre-CR, baseline METpeak was progressively lower with greater training responsiveness (F(4,2305) = 44.2, P < 0.01, η2p = 0.71). Likewise, average training duration (F(4,2305) = 10.7 P < 0.01, η2p = 0.02) and %HRpeak (F(4,2305) = 25.1 P < 0.01, η2p = 0.042) quantified during onsite ET sessions were progressively greater with greater training responsiveness. The multivariable linear regression model confirmed that baseline METpeak, training duration and intensity during ET, BMI, and age (P < 0.001) were significant predictors of METpeak post-CR. CONCLUSIONS Along with baseline METpeak, delta BMI, and age, the dose of ET (i.e., training duration and intensity) predicts METpeak at the conclusion of CR. A re-evaluation of current approaches for exercise intensity prescription is recommended to extend the benefits of completing CR to all patients.
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Affiliation(s)
- Danilo Iannetta
- Faculty of Kinesiology, University of Calgary, Calgary, Canada
| | - Codie R Rouleau
- Department of Psychology, University of Calgary, Calgary, Canada; TotalCardiology™ Research Network, Calgary, Canada
| | - Daniele Chirico
- Faculty of Kinesiology, University of Calgary, Calgary, Canada; TotalCardiology™ Research Network, Calgary, Canada
| | - Federico Y Fontana
- Department of Diabetes, Endocrinology, Nutritional Medicine and Metabolism, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Trina Hauer
- TotalCardiology™ Rehabilitation, Calgary, Canada; TotalCardiology™ Research Network, Calgary, Canada
| | - Stephen B Wilton
- TotalCardiology™ Research Network, Calgary, Canada; Libin Cardiovascular Institute, University of Calgary, Calgary, Canada
| | - Sandeep Aggarwal
- TotalCardiology™ Research Network, Calgary, Canada; Department of Cardiac Science, University of Calgary, Calgary, Canada
| | | | - Ross Arena
- TotalCardiology™ Research Network, Calgary, Canada; Department of Physical Therapy, University of Illinois at Chicago, Chicago, IL, USA
| | - Juan M Murias
- Faculty of Kinesiology, University of Calgary, Calgary, Canada.
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10
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Brawner CA, Pack Q, Berry R, Kerrigan DJ, Ehrman JK, Keteyian SJ. Relation of a Maximal Exercise Test to Change in Exercise Tolerance During Cardiac Rehabilitation. Am J Cardiol 2022; 175:139-144. [PMID: 35570164 PMCID: PMC9647718 DOI: 10.1016/j.amjcard.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/31/2022] [Accepted: 04/04/2022] [Indexed: 11/30/2022]
Abstract
The purpose of this study was to test the hypothesis that an individualized exercise training target heart rate (HR) based on a maximal graded exercise test (GXT) is associated with greater improvements in exercise tolerance during cardiac rehabilitation (CR) compared with no GXT. In this retrospective study, we identified patients who completed 9 to 36 visits of CR between 2001 and 2016, with a length of stay ≤18 weeks and a visit frequency of 1 to 3 days per week. Patients were grouped based on whether their exercise was guided by a target HR determined from a GXT. To assess the relation between GXT and change in exercise training metabolic equivalents of task (METs), we used generalized linear models adjusted for age, gender, race, referral reason, CR visits, CR frequency, METs at start, CR location, and year of participation. Out of 4,455 patients (37% female, 48% White, median age = 62 years), 53% were prescribed a target HR based on a GXT. Compared with no GXT, a GXT was associated with a significantly greater increase in covariate-adjusted METs during CR and percentage change from start (+0.44 METs [95% confidence interval [CI] 0.38 to 0.51] and +17% [95% CI 14% to 19%], respectively). In a sensitivity analysis limited to patients with 24 to 36 visits at ≥2 days per week (n = 1,319), a GXT was associated with a significantly greater increase in covariate-adjusted exercise training METs (+0.51 [95% CI 0.36 to 0.66]; +19% [95% CI 13% to 24%]). In conclusion, to maximize the potential increase in exercise capacity during CR, patients should undergo a GXT to determine an individualized exercise training target HR.
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Affiliation(s)
- Clinton A Brawner
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan.
| | - Quinn Pack
- Division of Cardiovascular Medicine, Baystate Medical, Springfield, Massachusetts
| | - Robert Berry
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Dennis J Kerrigan
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Jonathan K Ehrman
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
| | - Steven J Keteyian
- Division of Cardiovascular Medicine, Henry Ford Hospital, Detroit, Michigan
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