Longitudinal Analysis of Right Ventricular Remodeling in Response to Prolonged Strength Training Using 3D-echocardiography

Study Overview
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Brief Summary
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Right ventricular (RV) physiological remodeling in response to prolonged strength exercise remains poorly studied. This prospective, non-randomized, single-center study, proposes to follow 24 healthy sedentary volunteers who will benefit from a high-intensity pure resistance training program over a 6-month period. The volunteers, aged between 18 and 40 years old and male, will be recruited and evaluated at the University Hospital center of Caen Normandy. Cardiac remodeling in response to physical exercise will be analyzed by trans-thoracic echocardiography repeated during the follow-up. The physical impact of the training program will be assessed by a treadmill exercise test predicting maximal oxygen consumption (VO2max) before and after completing the training, and an isokinetic muscular test repeated every 3 months. Participants rest/activity cycles will be monitor before and after 3 months of training. The aim of the study is to demonstrate the existence of a physiologic RV remodeling in response to pure high-load resistance chronic exercise. The results will help to improve the understanding of the physiological RV response expected in strength athletes.

Official Title
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Longitudinal Analysis of Right Ventricular Remodeling in Response to Prolonged Strength Training Using 3D-echocardiography

Conditions
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Cardiac Remodeling, Ventricular, Right Ventricular Hypertrophy

Intervention / Treatment
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* Other: Strength physical training


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Age between 18 and 40 years Male gender Agree to participate in the study (signature of consent). Affiliated to an insurance scheme or beneficiary Exclusion Criteria: Female gender Inability to express consent Moderate physical activity over than 150 minutes or intensive physical activity over than 75 minutes per week on a regular basis for more than 6 consecutive months, according to the World Health Organisation criteria. Participation in competitive sports of ≥ II and / or B according to Mitchell's classification in the last 3 years. Ischemic and non-ischemic heart diseases Family history of unexplained sudden death Personal or family history of elastic tissue disease (Marfan syndrome and related) Chronic diseases incompatible with physical exercise at high intensity Personal history of chemotherapy and / or radiotherapy ≥ 1 cardiovascular risk factors use of doping substances Body mass index > 30 kg/m² Inclusion in another biomedical research protocol (during the present study or within 6 months before inclusion).

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Healthy sedentary subjects exposed to the training program<br> | Other: Strength physical training<br>* progressive high-load strength training over 6 months, consisting in repeated physical exercises to increase the muscular mass and force by altering concentric and eccentric muscle contractions against high resistance.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Assessment of right ventricular volumes change over 6 months of sustained high-strength physical training. | Analysis of variation in echocardiographic measurements of RV volumes before and after training | Before the training starts and up to 6 months of follow-up | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Right ventricle, cardiac physiology, strength training, echocardiography