NCT05993650

Brief Summary

There is insufficient evidence of inspiratory muscle training on venous function, clinical severity, symptoms and functional capacity and quality of life in CVI patients. Therefore, in the study, the investigators aimed to determine the effectiveness of inspiratory muscle training in individuals with chronic venous insufficiency.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jul 2023

Geographic Reach
1 country

1 active site

Status
completed

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 20, 2023

Completed
11 days until next milestone

First Submitted

Initial submission to the registry

July 31, 2023

Completed
15 days until next milestone

First Posted

Study publicly available on registry

August 15, 2023

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 10, 2024

Completed
14 days until next milestone

Study Completion

Last participant's last visit for all outcomes

July 24, 2024

Completed
Last Updated

January 17, 2025

Status Verified

January 1, 2025

Enrollment Period

12 months

First QC Date

July 31, 2023

Last Update Submit

January 15, 2025

Conditions

Keywords

chronic venous insufficiencymaximal respiratory pressuresrespiratory function testsexercise capacityedemapainquality of life

Outcome Measures

Primary Outcomes (1)

  • Maximal inspiratory pressure (MIP)

    The MIP which shows respiratory muscle strength will be evaluated using a portable mouth pressure measuring device based on American Thoracic Society and European Respiratory Society criteria.

    After 6-week training

Secondary Outcomes (10)

  • Maximal expiratory pressure (MEP)

    After 6-week training

  • Forced vital capacity (FVC)

    After 6-week training.

  • Forced expiratory volume in the first second (FEV1)

    After 6-week training.

  • FEV1 / FVC

    After 6-week training.

  • Flow rate 25-75% of forced expiratory volume (FEF 25-75%)

    After 6-week training.

  • +5 more secondary outcomes

Study Arms (2)

Training Group

EXPERIMENTAL

The individuals in the training group will be performed inspiratory muscle training using an inspiratory muscle training device (PowerBreathe®) at 30-50% of the maximal inspiratory pressure.

Other: Inspiratuar Muscle Training Group

Control Group

SHAM COMPARATOR

Individuals in this group will be given thoracic expansion exercises and patient education.

Other: Thoracic Expansion Exercise Group

Interventions

Inspiratory muscle training will be done for 15 minutes/session, 2 times/day, or 30 minutes/day if tolerated, 5-7 days/week (one under supervision and others at home), for a total of 6 weeks. Applications made at home will be followed with a diary. Inspiratory muscle training will be performed using an inspiratory muscle training device (PowerBreathe®) working with the threshold loading principle.In the first week of the training, 30-50% of the maximal inspiratory pressure (MIP) measured in the initial evaluation of the individual will be adjusted according to the patient's tolerance, and inspiratory muscle training will be performed. Respiratory muscle strength measurement will be repeated every week in the individuals in the training group. 30-50% of the new MIP value obtained will be calculated and adjusted by calculating the new training workload for the application of inspiratory muscle training in the following weeks

Also known as: Inspiratuar Muscle Training
Training Group

Individuals in this group will be given thoracic expansion exercises and patient education. Thoracic expansion exercises will be applied to individuals in an upright sitting position. In this position, individuals will place their hands on their lower ribs and then perform the cycle of "inhale a deep breathing + holding the deep breath for 3 seconds + slowly exhale all the breath" 3 times in a row. After this cycle, individuals will be asked to rest by taking 3-4 calm breaths. Immediately after, the individual will be asked to repeat the same cycle and repeat the cycle with calm breaths and rest until it reaches 10 repetitions. The individual will do this session 4 times a day. Individuals will do the first session of breathing exercises under supervision. In this way, incorrect exercise will be prevented. Other breathing exercise sessions will be done by individuals as a home program every day and 4 sessions a day during 6 weeks.

Control Group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Being diagnosed with CVI
  • Being between C1-C5 according to the 'Clinical, Etiologic, Anatomic, Pathophysiologic' (CEAP) scale,
  • To accept to participate in the study,

You may not qualify if:

  • Arterial diseases,
  • Presence of advanced cardiorespiratory diseases,
  • Having orthopedic and neurological disorders that may affect walking,
  • Presence of acute ulcer (\< 3 months) and diabetic ulcers,
  • Being pregnant.
  • Having a history of deep vein thrombosis,
  • Having undergone venous system surgery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Izmir Democracy University

Izmir, Karabağlar/İZMİR, 35140, Turkey (Türkiye)

Location

Related Publications (4)

  • OZDEMIR, Özlem Çınar; BAKAR, Yeşim; SÜRMELI, Mahmut. Kronik Venöz Yetmezlikte Ağrı, Yaşam Kalitesi Ve Depresyon Arasındaki İlişkinin İncelenmesi. Konuralp Medical Journal/Konuralp Tip Dergisi, 2017, 9.2.

    BACKGROUND
  • Aydin G, Yeldan I, Akgul A, Ipek G. Effects of inspiratory muscle training versus calf muscle training on quality of life, pain, venous function and activity in patients with chronic venous insufficiency. J Vasc Surg Venous Lymphat Disord. 2022 Sep;10(5):1137-1146. doi: 10.1016/j.jvsv.2022.04.012. Epub 2022 Jun 14.

    PMID: 35710091BACKGROUND
  • Kwon OY, Jung DY, Kim Y, Cho SH, Yi CH. Effects of ankle exercise combined with deep breathing on blood flow velocity in the femoral vein. Aust J Physiother. 2003;49(4):253-8. doi: 10.1016/s0004-9514(14)60141-0.

    PMID: 14632624BACKGROUND
  • Ozdemir OC, Tonga E, Tekindal A, Bakar Y. Cross-cultural adaptation, reliability and validity of the Turkish version of the Chronic Venous Disease Quality of Life Questionnaire (CIVIQ-20). Springerplus. 2016 Mar 31;5:381. doi: 10.1186/s40064-016-2039-2. eCollection 2016.

    PMID: 27066388BACKGROUND

MeSH Terms

Conditions

EdemaPain

Condition Hierarchy (Ancestors)

Signs and SymptomsPathological Conditions, Signs and SymptomsNeurologic Manifestations

Study Officials

  • Özlem Çinar Özdemir

    Izmir Democracy University

    STUDY DIRECTOR
  • Gülşah BARĞI

    Izmir Democracy University

    PRINCIPAL INVESTIGATOR
  • Cemre GÖRÜNMEZOĞLU, MSc

    Izmir Democracy University

    PRINCIPAL INVESTIGATOR
  • Dündar Özalp KARABAY

    Dokuz Eylul University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
Single-blind study; the patients will not be informed about training group or control group and they will be evaluated and trained at different places and times.
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Assessment
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assoc. prof

Study Record Dates

First Submitted

July 31, 2023

First Posted

August 15, 2023

Study Start

July 20, 2023

Primary Completion

July 10, 2024

Study Completion

July 24, 2024

Last Updated

January 17, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations