NCT04611191

Brief Summary

Cardiovascular disease, and especially myocardial infarction, is the most common cause of death globally, and is particularly common in older individuals. Practical measures that can reduce both the prevalence and incidence of cardiovascular disease are of great value. It is well known that regular physical activity has a protective effect against the development of cardiovascular diseases such as acute myocardial infarction. It has been shown that physical activity can improve the function of the heart and blood vessels, but it is less well known how physical activity can affect the risk of formation of dangerous blood clots, and thus the risk of heart attack and stroke. In a cross-sectional study it has been shown that a physically active lifestyle can reduce the risk of blood clot formation, but experimental evidence for the importance of a period of physical activity for the risk of blood clot formation is lacking. New methods have been set up for measuring the coagulation profile. The analyzes are performed on a blood sample and allow a thorough determination of platelet reactivity as well as an innovative measure of how the microstructure of a possible blood clot would develop. In this project, these methods is used to examine how physical activity, in the form of team sports, affects the coagulation profile of elderly men and women. The increasing age-related risk of cardiovascular disease is associated with endothelial dysfunction and decrease in capillary density, and it has been shown that initiation of capillary growth is a successful method to treat cardiovascular disease. Therefore, this project will also investigate how a longer period of physical activity, in the form of team sports, affects capillary density and endothelial function in men and women aged 60-70 years. Both men and women will be recruited, as it is still unknown whether men and women respond differently to physical activity in relation to coagulation profile, susceptibility to blood clots and capillary density.

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
400

participants targeted

Target at P75+ for not_applicable

Timeline
21mo left

Started Dec 2024

Typical duration for not_applicable

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress45%
Dec 2024Dec 2027

First Submitted

Initial submission to the registry

October 26, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

November 2, 2020

Completed
4.2 years until next milestone

Study Start

First participant enrolled

December 30, 2024

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

May 11, 2023

Status Verified

May 1, 2023

Enrollment Period

2 years

First QC Date

October 26, 2020

Last Update Submit

May 9, 2023

Conditions

Outcome Measures

Primary Outcomes (5)

  • Changes in clot microstructure in elderly individuals after 16 weeks and 1 year of team sports in local sports clubs, respectively

    Clot microstructure is measured in a rheometer using unaltered whole blood

    12 months

  • Changes in platelet reactivity in elderly individuals after 16 weeks and 1 year of team sports in local sports clubs, respectively

    Platelet reactivity is measured with Light Transmission Aggregometry using platelet rich and platelet poor plasma

    12 months

  • Plasma concentration of coagulation factors in elderly individuals after 16 weeks and 1 year of team sports in local sports clubs, respectively

    Coagulation factors II, VII, X, VIII, D-dimer, fibrinogen and thrombin

    12 months

  • Changes in capillary density in elderly individuals after 16 weeks and 1 year of team sports in local sports clubs, respectively

    Capillary density will be assessed by histochemistry

    12 months

  • Changes in proliferative capacity of endothelial cells from skeletal muscle biopsies in elderly individuals after 16 weeks and 1 year of team sports in local sports clubs, respectively

    From a biopsy sample we isolate endothelial cells and run a proliferation assay

    12 months

Secondary Outcomes (3)

  • Changes in blood pressure after 16 weeks and 1 year of team sports in local sports clubs, respectively, in elderly individuals

    12 months

  • Changes in maximal oxygen uptake after 16 weeks and 1 year of team sports in local sports clubs, respectively, in elderly individuals

    12 months

  • Changes in bodt composition after 16 weeks and 1 year of team sports in local sports clubs, respectively, in elderly individuals

    12 months

Study Arms (2)

Team Sports

EXPERIMENTAL

Elderly men and women performing team sports in local sports clubs

Other: Team Sports

Control

EXPERIMENTAL

Elderly men and women continue their normal lifestyle

Other: Control

Interventions

The intervention involves team sports in sports clubs in local municipalities

Team Sports
ControlOTHER

The intervention involves a control condition with participants continuing their normal way of living

Control

Eligibility Criteria

Age60 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age: 60-70 years
  • Physical activity ≤ 2 hours per week (except transportation by bike or by walking)
  • BMI ≤ 30

You may not qualify if:

  • Age \<60 years
  • Injuries that prevent the performance of team sports
  • Participation in other clinical projects
  • Smokes or has smoked within the last 10 years
  • On hormone therapy (women)
  • Not entered menopause (women)
  • Has chronic diseases that are not expected, cf. the groups sought. Including heart problems, atrial fibrillation, cancer, immune diseases and previous strokes with functionally significant sequelae
  • Being treated with oral steroids
  • Has alcohol / drug abuse or is being treated with disulfiram (Antabus)
  • Is unable to understand the contents of the document with informed consent or the experimental procedures

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Thrombosis

Condition Hierarchy (Ancestors)

Embolism and ThrombosisVascular DiseasesCardiovascular Diseases

Study Officials

  • Jens Bangsbo, Dr.Sci.

    Nutrition, Exercise and Sports, 2200 Copenhagen, Denmark

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Ylva Hellsten, Dr.Med.Sc.

CONTACT

Line N Olsen, MSc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

October 26, 2020

First Posted

November 2, 2020

Study Start

December 30, 2024

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2027

Last Updated

May 11, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will not share