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Cardiac remodeling in ambitious endurance-trained amateur athletes older than 50 years–an observational study. PLoS One 2022; 17:e0266951. [PMID: 35413088 PMCID: PMC9004772 DOI: 10.1371/journal.pone.0266951] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 03/30/2022] [Indexed: 11/19/2022] Open
Abstract
Background Data on cardiac remodeling in veteran athletes are conflicting but of clinical importance. Methods Sixty-nine clinically stable and healthy individuals >50 years were identified (median 55 (IQR 52–64), 26% female). Echocardiographic features were identified in individuals, who have performed endurance sports at 70% of their maximum heart rate for at least 1 hour 3 times/ week over the previous 5 years. Results Median training time in all participants was 6 hours per week. Therefore, based on these 6 hours of weekly training, participants were grouped into 45 ambitious endurance-trained amateur athletes (EAA) and 24 recreationally active endurance-trained athletes (RAP) training ≥6 hours (6–10) and <6 hours (3.5–5), respectively. Left ventricular (LV) diameters were slightly larger in EAA than in RAP (27 mm/m2 (25–28) vs. 25 mm/m2 (24–27), p = 0.023) and EAA showed preserved diastolic function (p = 0.028) with lower E/E’ ratio (7 (6–9) vs. 9 (7–10), p = 0.039). Interventricular septal thickness and relative wall thickness ratio were similar. Global right ventricular and LV strain were similar, but left atrial (LA) reservoir strain was higher in EAA than in RAP (27% (22–34) vs. 20% (15–29), p = 0.002). Conclusions Endurance training in healthy athletes >50 years is not associated with chamber dilatation or LV hypertrophy. A weekly training duration of ≥6 hours seems beneficial to preserve diastolic function associated with an increased LA reservoir function.
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Abstract
Practical relevance: Hypertrophic cardiomyopathy (HCM) is the most common form of feline
cardiomyopathy observed clinically and may affect up to approximately 15% of
the domestic cat population, primarily as a subclinical disease.
Fortunately, severe HCM, leading to heart failure or arterial
thromboembolism (ATE), only occurs in a small proportion of these cats. Patient group: Domestic cats of any age from 3 months upward, of either sex and of any
breed, can be affected. A higher prevalence in male and domestic shorthair
cats has been reported. Diagnostics: Subclinical feline HCM may or may not produce a heart murmur or gallop sound.
Substantial left atrial enlargement can often be identified radiographically
in cats with severe HCM. Biomarkers should not be relied on solely to
diagnose the disease. While severe feline HCM can usually be diagnosed via
echocardiography alone, feline HCM with mild to moderate left ventricular
(LV) wall thickening is a diagnosis of exclusion, which means there is no
definitive test for HCM in these cats and so other disorders that can cause
mild to moderate LV wall thickening (eg, hyperthyroidism, systemic
hypertension, acromegaly, dehydration) need to be ruled out. Key findings: While a genetic cause of HCM has been identified in two breeds and is
suspected in another, for most cats the cause is unknown. Systolic anterior
motion of the mitral valve (SAM) is the most common cause of dynamic left
ventricular outflow tract obstruction (DLVOTO) and, in turn, the most common
cause of a heart murmur with feline HCM. While severe DLVOTO is probably
clinically significant and so should be treated, lesser degrees probably are
not. Furthermore, since SAM can likely be induced in most cats with HCM, the
distinction between HCM without obstruction and HCM with obstruction (HOCM)
is of limited importance in cats. Diastolic dysfunction, and its
consequences of abnormally increased atrial pressure leading to signs of
heart failure, and sluggish atrial blood flow leading to ATE, is the primary
abnormality that causes clinical signs and death in affected cats. Treatment
(eg, loop diuretics) is aimed at controlling heart failure. Preventive
treatment (eg, antithrombotic drugs) is aimed at reducing the risk of
complications (eg, ATE). Conclusions: Most cats with HCM show no overt clinical signs and live a normal or
near-normal life despite this disease. However, a substantial minority of
cats develop overt clinical signs referable to heart failure or ATE that
require treatment. For most cats with clinical signs caused by HCM, the
long-term prognosis is poor to grave despite therapy. Areas of uncertainty: Genetic mutations (variants) that cause HCM have been identified in a few
breeds, but, despite valiant efforts, the cause of HCM in the vast majority
of cats remains unknown. No treatment currently exists that reverses or even
slows the cardiomyopathic process in HCM, again despite valiant efforts. The
search goes on.
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Affiliation(s)
- Mark D Kittleson
- School of Veterinary Medicine, Department of Medicine and Epidemiology, University of California, Davis, and Veterinary Information Network, 777 West Covell Boulevard, Davis, CA 95616, USA
| | - Etienne Côté
- Department of Companion Animals, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
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de Waal EEC, Frank M, Scheeren TWL, Kaufmann T, de Korte-de Boer D, Cox B, van Kuijk SMJ, Montenij LM, Buhre W. Perioperative goal-directed therapy in high-risk abdominal surgery. A multicenter randomized controlled superiority trial. J Clin Anesth 2021; 75:110506. [PMID: 34536718 DOI: 10.1016/j.jclinane.2021.110506] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/29/2021] [Accepted: 09/04/2021] [Indexed: 10/20/2022]
Abstract
STUDY OBJECTIVE The potential of perioperative goal-directed therapy (PGDT) to improve outcome after high-risk abdominal surgery remains subject of debate. In particular, there is a need for large, multicenter trials focusing on relevant patient outcomes to confirm the evidence found in small, single center studies including minor complications in their composite endpoints. The present study therefore aims to investigate the effect of an arterial waveform analysis based PGDT algorithm on the incidence of major complications including mortality after high-risk abdominal surgery. DESIGN Prospective randomized controlled multicenter trial. SETTING Operating theatres and Post-Anesthesia/Intensive Care units (PACU/ICU) of four tertiary hospitals in The Netherlands. PATIENTS A total number of 482 patients undergoing elective, abdominal surgery that is considered high-risk due to the extent of the procedure and/or patient comorbidities. INTERVENTIONS Hemodynamic therapy using an age-specific PGDT algorithm including cardiac index (CI) and stroke volume variation (SVV) measurements during a 24-h perioperative period starting at induction of anesthesia. MEASUREMENTS The average number of major complications (including mortality) within 30 days after surgery, the number of minor complications, hospital and PACU/ICU length of stay (LOS), amounts of fluids and vasoactive medications used. Complications were graded using the Accordion severity grading system. RESULTS The average number of major complications per patient was 0.79 (PGDT group) versus 0.69 (control group) (p = 0.195). There were no statistically significant differences in the number of minor complications, hospital LOS, PACU/ICU LOS, or grading of complications. Patients in the PGDT group received more fluids intraoperatively, more dobutamine intra- and postoperatively, while patients in the control group received more phenylephrine during the operation. CONCLUSIONS PGDT based on a CI and SVV driven algorithm did not result in improved outcomes after high-risk abdominal surgery. CLINICAL TRIAL REGISTRATION Netherlands Trial Registry: NTR3380.
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Affiliation(s)
- Eric E C de Waal
- Department of Anesthesiology, University Medical Center Utrecht, Utrecht, the Netherlands.
| | - Michael Frank
- Department of Anesthesiology and Intensive Care, Albert Schweitzer Hospital, Dordrecht, the Netherlands.
| | - Thomas W L Scheeren
- Department of Anesthesiology, University Medical Center Groningen, Groningen, the Netherlands.
| | - Thomas Kaufmann
- Department of Anesthesiology, University Medical Center Groningen, Groningen, the Netherlands.
| | - Dianne de Korte-de Boer
- Department of Anesthesiology, Maastricht University Medical Center, Maastricht, the Netherlands.
| | - Boris Cox
- Department of Anesthesiology, Maastricht University Medical Center, Maastricht, the Netherlands.
| | - Sander M J van Kuijk
- Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Center, Maastricht, the Netherlands.
| | - L M Montenij
- Department of Anesthesiology and Intensive Care, Catharina Ziekenhuis, Eindhoven, the Netherlands.
| | - Wolfgang Buhre
- Department of Anesthesiology, Maastricht University Medical Center, Maastricht, the Netherlands.
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Kusy K, Błażejewski J, Gilewski W, Karasek D, Banach J, Bujak R, Zieliński J, Sinkiewicz W, Grześk G. Aging Athlete's Heart: An Echocardiographic Evaluation of Competitive Sprint- versus Endurance-Trained Master Athletes. J Am Soc Echocardiogr 2021; 34:1160-1169. [PMID: 34175421 DOI: 10.1016/j.echo.2021.06.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 06/17/2021] [Accepted: 06/17/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Sports training triggers exercise-induced cardiac remodeling (EICR). Sprint- and endurance-trained master athletes are exposed to different hemodynamic stimuli accompanied by aging. The aim of this study was to compare EICR types in light of the Morganroth hypothesis, frequency of abnormalities, and relationships between cardiac traits and age. METHODS In this observational cross-sectional study, echocardiographic examinations were conducted in 143 sprint-trained (age range, 36-83 years) and 114 endurance-trained (age range, 38-85 years) competitive master athletes. Structural and functional characteristics were compared with population reference values, and EICR types were identified. Athletic groups were compared using t tests and χ2 tests. Relationships with age were assessed using linear regression. RESULTS In the sprint group, 51.0% of athletes had normal cardiac geometry (nonhypertrophic heart), 4.2% had eccentric hypertrophy, 36.4% had concentric remodeling, and 8.4% had concentric hypertrophy. In their endurance-trained peers, these proportions were 22.8%, 16.7%, 36.8%, and 23.7%, respectively. Many athletes in both groups had structural abnormalities, as assessed using population norms (up to ~81% for septal thickness) but their resting cardiac function was normal. The relationships of structural and functional cardiac characteristics with age were mostly weak to moderate and did not differ between training modalities. CONCLUSIONS Even though many endurance- and sprint-oriented master athletes exceed population norms for cardiac structure, they do not go beyond the "gray zone" and preserve normal cardiac function. Therefore, physiologic adaptations, rather than pathologic abnormalities, are expected in aging but still active athletes. Inconsistent with the Morganroth hypothesis, EICR is shifted toward normal geometry in sprinters and toward concentric remodeling and hypertrophy in endurance runners. A better understanding of the mechanisms behind cardiac remodeling during aging is needed to adequately predict EICR types in master athletes.
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Affiliation(s)
- Krzysztof Kusy
- Department of Athletics, Strength and Conditioning, Faculty of Sport Sciences, Poznan University of Physical Education, Poznań, Poland.
| | - Jan Błażejewski
- Department of Cardiology and Clinical Pharmacology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Wojciech Gilewski
- Department of Cardiology and Clinical Pharmacology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Danuta Karasek
- Department of Cardiology and Clinical Pharmacology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Joanna Banach
- Department of Cardiology and Clinical Pharmacology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Robert Bujak
- Department of Cardiology and Clinical Pharmacology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Jacek Zieliński
- Department of Athletics, Strength and Conditioning, Faculty of Sport Sciences, Poznan University of Physical Education, Poznań, Poland
| | - Władysław Sinkiewicz
- Department of Cardiology and Clinical Pharmacology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Grzegorz Grześk
- Department of Cardiology and Clinical Pharmacology, Faculty of Health Sciences, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
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Shibata S, Hirabuki K, Hata N, Suzuki R, Suda T, Uechi T, Hirasawa A. Pivotal Role of Heart for Orthostasis: Left Ventricular Untwisting Mechanics and Physical Fitness. Exerc Sport Sci Rev 2021; 49:88-98. [PMID: 33720910 DOI: 10.1249/jes.0000000000000247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Augmentation of left ventricular (LV) untwisting due to central hypovolemia is likely to be a compensatory mechanism for maintaining stroke volume, which is reduced by a decrease in cardiac filling during orthostatic stress. Orthostatic intolerance observed in both high and low fitness levels may be explained by the impaired response of LV untwisting due to central hypovolemia.
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Affiliation(s)
| | | | | | - Rina Suzuki
- Emergency Department, Kyorin University Hospital
| | - Tomoya Suda
- Emergency Department, Kyorin University Hospital
| | | | - Ai Hirasawa
- Department of Health and Welfare, Faculty of Health Sciences, Kyorin University, Tokyo, Japan
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Euzebio MB, Vitorino PVDO, Sousa WM, Melo MA, Costa SHN, Sousa ALL, Jardim TDSV, Arantes AC, Jardim PCBV, Barroso WKS. Diastolic Function and Biomarkers of Long-Distance Walking Participants. Arq Bras Cardiol 2020; 115:620-627. [PMID: 33111858 PMCID: PMC8386974 DOI: 10.36660/abc.20190271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 08/07/2019] [Accepted: 09/10/2019] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The effects of long-distance walking on the cardiovascular system have been little studied. OBJECTIVES The general objective of this study was to verify these effects on the behavior of diastolic function and the cardiac biomarkers CK-MB (mass), troponin T, and NT-proBNP, in amateur athletes. METHOD This longitudinal study, conducted in 2015, evaluated participants during the following 5 stages: E0 (baseline) before starting the trajectory and the others, E1, E2, E3, and E4, at the end of each day, totaling 244.7 km. At all stages, the biomarkers NT-proBNP, CK-MB (mass), and troponin T were measured. Echocardiogram was performed to analyze the E, A and E' waves. P < 0.05 was adopted as significant. RESULTS The study evaluated 25 participants, with an average age of 46 ± 10.5 years and body mass index of 20.2 ± 2.3 kg/m2. Increased values were found for NT-proBNP from E0 to E1, E2, E3, and E4 (p < 0.001), CK-MB (mass) from E0 to E2 (p < 0.001), and E' wave from E0 to E1, E2, E3, and E4 (p < 0.001). Positive correlations were identified between the following: CK-MB (mass) and troponin T (E1: r = 0.524, p = 0.010; E4: r = 0.413, p = 0.044); CK-MB (mass) and NT-proBNP (E4: r = 0.539, p = 0.006); and E/A and E' (E0: r = 0.603, p < 0.001; E1: r = 0.639, p < 0.001; E4: r = 0.593, p = 0.002). A negative correlation was found between CK-MB (mass) and E/A (E1: r = -0.428, p = 0.041). CONCLUSION The effects of intense, prolonged, and interspersed physical activity were verified based on significant variations in the behavior of CK-MB (mass), NT-proBNP, and the E' wave. Notwithstanding the alterations found, there were no criteria suggestive of myocardial damage.
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Affiliation(s)
- Maicon Borges Euzebio
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Medicina, Goiânia, GO – Brasil
- Pontifícia Universidade Católica de GoiásGoiâniaGOBrasilPontifícia Universidade Católica de Goiás, Goiânia, GO – Brasil
| | | | - Watila Moura Sousa
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Medicina, Goiânia, GO – Brasil
| | - Milena Andrade Melo
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Pós-graduação em Ciências da Saúde, Goiânia, GO – Brasil
| | - Sérgio Henrique Nascente Costa
- Pontifícia Universidade Católica de GoiásGoiâniaGOBrasilPontifícia Universidade Católica de Goiás, Goiânia, GO – Brasil
- Faculdade da Polícia Militar do Estado de GoiásGoiâniaGOBrasilFaculdade da Polícia Militar do Estado de Goiás, Goiânia, GO - Brasil
| | - Ana Luiza Lima Sousa
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Pós-graduação em Ciências da Saúde, Goiânia, GO – Brasil
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Liga de Hipertensão Arterial, Goiânia, GO – Brasil
| | - Thiago de Souza Veiga Jardim
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Pós-graduação em Ciências da Saúde, Goiânia, GO – Brasil
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Liga de Hipertensão Arterial, Goiânia, GO – Brasil
| | - Ana Carolina Arantes
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Pós-graduação em Ciências da Saúde, Goiânia, GO – Brasil
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Liga de Hipertensão Arterial, Goiânia, GO – Brasil
| | - Paulo Cesar B. Veiga Jardim
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Cardiologia, Goiânia, GO – Brasil
| | - Weimar Kunz Sebba Barroso
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Pós-graduação em Ciências da Saúde, Goiânia, GO – Brasil
- Universidade Federal de GoiásGoiâniaGOBrasilUniversidade Federal de Goiás – Liga de Hipertensão Arterial, Goiânia, GO – Brasil
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Currie KD, Coates AM, Slysz JT, Aubry RL, Whinton AK, Mountjoy ML, Millar PJ, Burr JF. Left Ventricular Structure and Function in Elite Swimmers and Runners. Front Physiol 2018; 9:1700. [PMID: 30546320 PMCID: PMC6279850 DOI: 10.3389/fphys.2018.01700] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 11/12/2018] [Indexed: 11/13/2022] Open
Abstract
Sport-specific differences in the left ventricle (LV) of land-based athletes have been observed; however, comparisons to water-based athletes are sparse. The purpose of this study was to examine differences in LV structure and function in elite swimmers and runners. Sixteen elite swimmers [23 (2) years, 81% male, 69% white] and 16 age, sex, and race matched elite runners participated in the study. All athletes underwent resting echocardiography and indices of LV dimension, global LV systolic and diastolic function, and LV mechanics were determined. All results are presented as swimmers vs. runners. Early diastolic function was lower in swimmers including peak early transmitral filling velocity [76 (13) vs. 87 (11) cm ⋅ s-1, p = 0.02], mean mitral annular peak early velocity [16 (2) vs. 18 (2) cm ⋅ s-1, p = 0.01], and the ratio of peak early to late transmitral filling velocity [2.68 (0.59) vs. 3.29 (0.72), p = 0.005]. The diastolic mechanics index of time to peak untwisting rate also occurred later in diastole in swimmers [12 (10)% diastole vs. 5 (4)% diastole, p = 0.01]. Cardiac output was larger in swimmers [5.8 (1.5) vs. 4.7 (1.2) L ⋅ min-1, p = 0.04], which was attributed to their higher heart rates [56 (6) vs. 49 (6) bpm, p < 0.001] given stroke volumes were similar between groups. All other indices of LV systolic function and dimensions were similar between groups. Our findings suggest enhanced early diastolic function in elite runners relative to swimmers, which may be attributed to faster LV untwisting.
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Affiliation(s)
- Katharine D. Currie
- Terry Kavanagh Heart Health Lab, Faculty of Kinesiology & Physical Education, University of Toronto, Toronto, ON, Canada
- Department of Kinesiology, Michigan State University, East Lansing, MI, United States
| | - Alexandra M. Coates
- Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
| | - Joshua T. Slysz
- Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
| | - Rachel L. Aubry
- Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
| | - Alanna K. Whinton
- Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
| | - Margo L. Mountjoy
- Fédération Internationale de Natation, Lausanne, Switzerland
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
| | - Philip J. Millar
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
- Toronto General Hospital Research Institute, Toronto, ON, Canada
| | - Jamie F. Burr
- Human Performance and Health Research Laboratory, University of Guelph, Guelph, ON, Canada
- Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, ON, Canada
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Forsythe L, George K, Oxborough D. Speckle Tracking Echocardiography for the Assessment of the Athlete's Heart: Is It Ready for Daily Practice? CURRENT TREATMENT OPTIONS IN CARDIOVASCULAR MEDICINE 2018; 20:83. [PMID: 30146663 PMCID: PMC6132779 DOI: 10.1007/s11936-018-0677-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE OF REVIEW To describe the use of speckle tracking echocardiography (STE) in the biventricular assessment of athletes' heart (AH). Can STE aid differential diagnosis during pre-participation cardiac screening (PCS) of athletes? RECENT FINDINGS Data from recent patient, population and athlete studies suggest potential discriminatory value of STE, alongside standard echocardiographic measurements, in the early detection of clinically relevant systolic dysfunction. STE can also contribute to subsequent prognosis and risk stratification. Despite some heterogeneity in STE data in athletes, left ventricular global longitudinal strain (GLS) and right ventricular longitudinal strain (RV ɛ) indices can add to differential diagnostic protocols in PCS. STE should be used in addition to standard echocardiographic tools and be conducted by an experienced operator with significant knowledge of the AH. Other indices, including left ventricular circumferential strain and twist, may provide insight, but further research in clinical and athletic populations is warranted. This review also raises the potential role for STE measures performed during exercise as well as in serial follow-up as a method to improve diagnostic yield.
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Affiliation(s)
- Lynsey Forsythe
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Tom Reilly Building, Liverpool, L3 3AF, UK
| | - Keith George
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Tom Reilly Building, Liverpool, L3 3AF, UK
| | - David Oxborough
- Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Tom Reilly Building, Liverpool, L3 3AF, UK.
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Left Ventricular Speckle Tracking-Derived Cardiac Strain and Cardiac Twist Mechanics in Athletes: A Systematic Review and Meta-Analysis of Controlled Studies. Sports Med 2018; 47:1145-1170. [PMID: 27889869 PMCID: PMC5432587 DOI: 10.1007/s40279-016-0644-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Background The athlete’s heart is associated with physiological remodeling as a consequence of repetitive cardiac loading. The effect of exercise training on left ventricular (LV) cardiac strain and twist mechanics are equivocal, and no meta-analysis has been conducted to date. Objective The objective of this systematic review and meta-analysis was to review the literature pertaining to the effect of different forms of athletic training on cardiac strain and twist mechanics and determine the influence of traditional and contemporary sporting classifications on cardiac strain and twist mechanics. Methods We searched PubMed/MEDLINE, Web of Science, and ScienceDirect for controlled studies of aged-matched male participants aged 18–45 years that used two-dimensional (2D) speckle tracking with a defined athlete sporting discipline and a control group not engaged in training programs. Data were extracted independently by two reviewers. Random-effects meta-analyses, subgroup analyses, and meta-regressions were conducted. Results Our review included 13 studies with 945 participants (controls n = 355; athletes n = 590). Meta-analyses showed no athlete–control differences in LV strain or twist mechanics. However, moderator analyses showed greater LV twist in high-static low-dynamic athletes (d = –0.76, 95% confidence interval [CI] –1.32 to –0.20; p < 0.01) than in controls. Peak untwisting velocity (PUV) was greater in high-static low-dynamic athletes (d = –0.43, 95% CI –0.84 to –0.03; p < 0.05) but less than controls in high-static high-dynamic athletes (d = 0.79, 95% CI 0.002–1.58; p = 0.05). Elite endurance athletes had significantly less twist and apical rotation than controls (d = 0.68, 95% CI 0.19–1.16, p < 0.01; d = 0.64, 95% CI 0.27–1.00, p = 0.001, respectively) but no differences in basal rotation. Meta-regressions showed LV mass index was positively associated with global longitudinal (b = 0.01, 95% CI 0.002–0.02; p < 0.05), whereas systolic blood pressure was negatively associated with PUV (b = –0.06, 95% CI –0.13 to –0.001; p = 0.05). Conclusion Echocardiographic 2D speckle tracking can identify subtle physiological differences in adaptations to cardiac strain and twist mechanics between athletes and healthy controls. Differences in speckle tracking echocardiography-derived parameters can be identified using suitable sporting categorizations.
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