Clinical trial NCT05235958: VascuFit: Exercise and Vascular Aging
Official title: Vascular Effects of Non-linear Periodized Exercise Training in Sedentary Adults With Elevated Cardiovascular Risk - The VascuFit Project
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: NA
Conditions: Endothelial Function
Aerobic Exercise
Middle-aged Adults Sedentary, Elevated CV-risk)
Keywords: endothelium
flow-mediated vasodilation
sedentary
cardiovascular risk
aerobic exercise
vascular ageing
Lead sponsor: University of Basel
Sponsor class: OTHER
Collaborators: name: University of Basel
name: QIAGEN Gaithersburg, Inc
First posted: 2022-02-11
Enrollment: 43
Sex: MALE
Minimum age (years): 40
Maximum age (years): 60
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Randomized controlled training intervention (8-weeks) with assessment of changes in clinical and molecular vascular biomarkers compared to their baseline value before the intervention
Primary purpose: PREVENTION

Brief summary: Exercise is a cornerstone of health care helping to improve and maintain a good organ functionality, including vascular function, in health and disease. About twenty years ago, the introduction of high-intensity training has been a milestone in the evolution of exercise therapy by demonstrating the trainability of individuals independent of age and state of disease. Today, its practical implementation still faces barriers, such as lower physical and mental tolerance of exercise, long-term adherence and lack of individualization of training for optimal adaptations.

The proposed project is the logical next step to introduce non-linear periodized exercise training (NLPE), a method widely established in elite athletes, in exercise training of sedentary individuals. NLPE alternatingly involves person-centred periodization of training cycles and regeneration with high-intensity stimuli. It induces a broader range of physiological adaptations than moderate-intensity training while keeping a high compliance and without increasing the risk of overreaching. A study of patients with chronic-obstructive-pulmonary-disease and a study with resistance training of older adults indicated promising pulmonary and muscular effects. However, the effectiveness of NLPE to maintain and improve vascular function has not yet been assessed, although this may carry a huge clinical and socioeconomic potential by contributing to the reduction of cardiovascular morbidity and mortality.

VascuFit applies an 8-week training intervention to assess the effects of NLPE on the function of the vascular endothelium, measured by the non-invasive gold-standard method brachial arterial flow-mediated dilation (baFMD), in a sample of sedentary aging adults with cardiovascular risk factors. In addition, it will be the first study to measure training effects on a cluster of micro-ribonucleic acids (miRNAs) regulating key molecular pathways of endothelial (dys-)function. Thus, VascuFit aims to explore the potential of clinical and molecular biomarkers for the monitoring of individual vascular adaptability to a specific type of exercise. As a first step, this pilot-project is supposed to deliver proof-of-concept. Furthermore, it will generate important hypotheses to be addressed by exercise physiologists, medical professionals and biologists concerned with the optimization of individual training adaptations as well as utility and implementation of targeted training approaches in the health care of aging adults.

VascuFit aims to demonstrate the potential of NLPE as a training regimen to improve vascular function in sedentary individuals with elevated cardiovascular risk. This project may be the initial spark to raise exercise training to the next level, which is clearly necessary to sustainably strengthen the vascular capacities of "young" aging individuals.

Detailed description: A detailed description of the study can be found at:

DOI: 10.1186/s12872-022-02905-1

Eligibility criteria: Inclusion Criteria:

1. Informed consent, documented by signature
2. sedentary lifestyle, as not performing exercise on a regular basis and reaching less than the recommended 7.5 MET hours of at least moderate intensity activity per week
3. being mentally and physically able to attend and keep up training during the whole intervention period.

Exclusion Criteria:

1. current or chronic condition limiting exhaustive exercise (e.g. heart failure, infection, pulmonary disease)
2. any condition with elevated risk of a serious adverse event during exhaustive exercise (e.g. cardiomyopathy, acute myocardial infarction, stroke, uncontrolled hypertensive resting blood pressure ≥160/100mmHg)
3. chronic condition with severe affection of the vascular system (e.g. severe atherosclerosis, severe chronic kidney disease, autoimmune vasculitis, insulin dependent diabetes mellitus)
4. inability to follow advice during measurements and training sessions (e.g. language barriers, psychological disorders, dementia)
5. previous enrollment into the current study or participation in another study in the last four weeks.

Primary outcomes:
measure: Brachial-arterial flow-mediated vasodilation (baFMD)
timeFrame: 8 weeks
Secondary outcomes:
measure: endomiR
timeFrame: 8 weeks
Other outcomes:
measure: Static retinal vessel analysis (SVA)
timeFrame: 8 weeks
Locations:
city: Basel
country: Switzerland
facility: Departement of Sport, Exercise and Health
Study officials:
affiliation: University of Basel
name: Karsten Königstein, Dr. med.
role: PRINCIPAL_INVESTIGATOR
References:
citation: Konigstein K, Meier J, Angst T, Maurer DJ, Kropfl JM, Carrard J, Infanger D, Baumann S, Bischofsberger I, Harder M, Jaggi Y, Wettach S, Hanssen H, Schmidt-Trucksass A. VascuFit: vascular effects of non-linear periodized exercise training in sedentary adults with elevated cardiovascular risk - protocol for a randomized controlled trial. BMC Cardiovasc Disord. 2022 Oct 27;22(1):449. doi: 10.1186/s12872-022-02905-1.