The Galway Sea Swimmers Study

NCT04290637 · Status: SUSPENDED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 150

Last updated 2020-06-30

No results posted yet for this study

Summary

Cardiovascular disease (CVD) is the leading cause of death worldwide. Hypertension is a well-established risk factor for the development of CVD. Lifestyle modifications, including exercise, remain the cornerstone of blood pressure (BP)-lowering strategy. Swimming has long been a popular recreational activity for exercise, and is recently gaining widespread recognition as an effective option in maintaining and improving cardiovascular health. Previous studies that involved pool swimming as an intervention (versus no pool swimming) demonstrated favorable benefits of the former on BP reduction. However, no studies to date have specifically investigated the effect of cold-water sea swimming on BP. Indeed, the naturally lower water temperature in the sea may engender a 'cold water immersion' experience in sea swimmers with subsequent stress physiology, which have been shown to exert unique effects on cardiovascular hemodynamics. This study primarily aims to determine the impact of cold-water sea swimming on BP in a group of habitual sea swimmers in Galway who will be randomly assigned to either continue or stop swimming for 4-6 weeks. Other objective and subjective health benefits to sea swimming will also be explored in this study. Given the ubiquitous nature of this activity in the Irish general public, particularly in Galway, this study has potential from a public health perspective, and would add to the literature base pertaining to the benefits of sea swimming on cardiovascular health.

Conditions

Interventions

OTHER

Cold-water sea swimming

Continue sea swimming for 4-6 weeks

OTHER

No cold-water sea swimming

Discontinue sea swimming for 4-6 weeks

Sponsors & Collaborators

  • National University of Ireland, Galway, Ireland

    lead OTHER

Principal Investigators

  • John William McEvoy, MBBCh MHS · National University of Ireland, Galway

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
100 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2020-10-31
Primary Completion
2021-07-31
Completion
2021-10-31

Countries

  • Ireland

Study Locations

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Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04290637 on ClinicalTrials.gov