ClinicalTrials.gg
Not yet recruitingNCT07350473VIBRANT-KSAUpdated Feb 23, 2026

Effects of Vibration-Assisted Physical Activity in Type-2 Diabetes

An interventional study of Localized vibration and Placebo vibration in Diabetes Mellitus, Type 2, sponsored by University of Central Lancashire. Not yet recruiting. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2026-02-23.

Sponsored by University of Central Lancashire · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
305
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The World Health Organization ranks Saudi Arabia as having the 7th highest rate of type-2 diabetes in the world. This therefore makes diabetes the most challenging health problem facing Saudi Arabia. Importantly, physical activity has been shown to improve disease symptoms and overall health in patients with type-2 diabetes. However, findings relating to the prevalence of physical inactivity in the Saudi population confirm that a sedentary lifestyle is on the rise, within physical inactivity levels in adults being 80.5%. Therefore, interventions aimed at reducing physical inactivity using bespoke modalities pertinent to Saudi Arabia are clearly warranted.

There have been no fully powered, placebo-controlled trials of localised wearable calf vibration in T2DM within the Kingdom of Saudi Arabia. The proposed study will address this gap by evaluating a 12 week, home based, seated calf vibration intervention in Saudi adults with T2DM, recruited from the Jazan Diabetes and Endocrinology Center. A three-arm design will compare active localised vibration, a sham vibration condition and usual care.

02

Conditions studied

  • Diabetes Mellitus, Type 2
03

In context

Diabetes Mellitus, Type 2

10,371 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,406 are open to participants now.

This study's planned enrollment of 305 is above the median of 80 across 8,350 interventional studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Lead sponsor

University of Central Lancashire is the lead sponsor of 31 studies on the registry; 10 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Clinically established diagnosis of type-2 diabetes for at least 12 months
  • Previously sedentary
  • Knowledgeable about hypoglycaemia
  • Aged over 18 years
  • Capacity to give .

Exclusion criteria

Exclusion Criteria:

  • Cognitive impairment precluding consent or participation
  • Pregnancy
  • Additional medical conditions that prevent safe physical activity (e.g. severe arthritis or advanced heart failure)
  • Enrolment in any other clinical trial designed to influence type-2 diabetes symptoms.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
305 participants (estimated)

Study arms

  • Experimental
    Localized Vibration

    Device: Localized vibration

  • Sham comparator
    Placebo vibration

    Other: Placebo vibration

  • Other
    Usual care

    Other: Usual care

Interventions

  • DeviceLocalized vibration

    Participants allocated to the localized vibration group will complete home based sessions five times per week for 12 weeks. Each session will last approximately 60 minutes and will consist of four 10 minute bouts of focal muscle vibration separated by 5 minute seated rest periods. Participants will be seated with hips and knees at roughly 90 degrees and will perform repeated calf raises, executing plantarflexion within an approximate 0-45° range at a cadence of 60 repetitions per minute.

  • OtherPlacebo vibration

    Participants allocated to the placebo group will follow an identical protocol to the active vibration arm, including the same session frequency, activity and durations. However, they will use a sham version of the wearable device that emits only negligible vibration, providing minimal cutaneous sensation without delivering a meaningful therapeutic dose.

  • OtherUsual care

    Usual care.

06

What researchers measure

Primary outcomes

  1. HBA1c (Glycated hemoglobin)

    Glycated hemoglobin is a form of hemoglobin that is chemically linked to a sugar. This parameter will be obtained via a venous blood sample.

    Time frame: Baseline

  2. HBA1c (Glycated hemoglobin)

    Glycated hemoglobin is a form of hemoglobin that is chemically linked to a sugar. This parameter will be obtained via a venous blood sample.

    Time frame: 12 weeks

Secondary outcomes

  1. WHO Well-Being Index (WHO-5)

    The World Health Organisation- Five Well-Being Index (WHO-5) is a short self-reported measure of current mental wellbeing. A score of 0 represents the worst imaginable well-being and 100 represents the best imaginable well-being.

    Time frame: Baseline

  2. WHO Well-Being Index (WHO-5)

    The World Health Organisation- Five Well-Being Index (WHO-5) is a short self-reported measure of current mental wellbeing. A score of 0 represents the worst imaginable well-being and 100 represents the best imaginable well-being.

    Time frame: 12 weeks

  3. Patient Health Questionnaire-9 (PHQ-9)

    The Patient Health Questionnaire-9 (PHQ-9) is the depression module, which has nine questions ranging from "0" (not at all) to "3" (nearly every day). The scoring is interpreted as 0-4 no depression symptoms, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe depression symptoms.

    Time frame: Baseline

  4. Patient Health Questionnaire-9 (PHQ-9)

    The Patient Health Questionnaire-9 (PHQ-9) is the depression module, which has nine questions ranging from "0" (not at all) to "3" (nearly every day). The scoring is interpreted as 0-4 no depression symptoms, 5-9 mild, 10-14 moderate, 15-19 moderately severe, 20-27 severe depression symptoms.

    Time frame: 12 weeks

  5. Pittsburgh Sleep Quality Index (PSQI)

    The Pittsburgh Sleep Quality Index (PSQI) is a self-report questionnaire that assesses sleep quality. The component scores are summed to produce a global score (range 0 to 21). Higher scores indicate worse sleep quality.

    Time frame: Baseline

  6. Pittsburgh Sleep Quality Index (PSQI)

    The Pittsburgh Sleep Quality Index (PSQI) is a self-report questionnaire that assesses sleep quality. The component scores are summed to produce a global score (range 0 to 21). Higher scores indicate worse sleep quality.

    Time frame: 12 weeks

  7. Physical fitness

    Physical fitness will be examined via the Chester Step test.

    Time frame: Baseline

  8. Physical fitness

    Physical fitness will be examined via the Chester Step test.

    Time frame: 12 weeks

  9. Fasting glucose

    Fasting glucose levels will be examined via a venous blood sample.

    Time frame: Baseline

  10. Fasting glucose

    Fasting glucose levels will be examined via a venous blood sample.

    Time frame: 12 weeks

  11. Systolic blood pressure

    Systolic blood pressure using blood pressure monitor with blood pressure cuff on the arm.

    Time frame: Baseline

  12. Systolic blood pressure

    Systolic blood pressure using blood pressure monitor with blood pressure cuff on the arm.

    Time frame: 12 weeks

  13. Diastolic blood pressure

    Diastolic blood pressure using blood pressure monitor with blood pressure cuff on the arm.

    Time frame: Baseline

  14. Diastolic blood pressure

    Diastolic blood pressure using blood pressure monitor with blood pressure cuff on the arm.

    Time frame: 12 weeks

  15. Body mass

    Body mass in kg measured via an electric scale.

    Time frame: Baseline

  16. Body mass

    Body mass in kg measured via an electric scale.

    Time frame: 12 weeks

  17. Body mass index

    Body mass index will be quantified using the standard body mass index equation using measures of body mass and stature.

    Time frame: Baseline

  18. Body mass index

    Body mass index will be quantified using the standard body mass index equation using measures of body mass and stature.

    Time frame: 12 weeks

  19. Triglyceride-glucose index

    The triglyceride-glucose index will be calculated using a logarithm of the fasting triglyceride and glucose indices.

    Time frame: Baseline

  20. Triglyceride-glucose index

    The triglyceride-glucose index will be calculated using a logarithm of the fasting triglyceride and glucose indices.

    Time frame: 12 weeks

  21. Total cholesterol

    This parameter will be obtained via a venous blood sample.

    Time frame: Baseline

  22. Total cholesterol

    This parameter will be obtained via a venous blood sample.

    Time frame: 12 weeks

  23. HDL cholesterol

    This parameter will be obtained via a venous blood sample.

    Time frame: Baseline

  24. HDL cholesterol

    This parameter will be obtained via a venous blood sample.

    Time frame: 12 weeks

  25. LDL cholesterol

    This parameter will be obtained via a venous blood sample.

    Time frame: Baseline

  26. LDL cholesterol

    This parameter will be obtained via a venous blood sample.

    Time frame: 12 weeks

  27. Triglycerides

    This parameter will be obtained via a venous blood sample.

    Time frame: Baseline

  28. Triglycerides

    This parameter will be obtained via a venous blood sample.

    Time frame: 12 weeks

  29. Single Leg Stance

    Static balance by recording how long a patient can stand on one leg unassisted.

    Time frame: Baseline

  30. Single Leg Stance

    Static balance by recording how long a patient can stand on one leg unassisted.

    Time frame: 12 weeks

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07350473
Lead sponsor
University of Central Lancashire
Collaborators
University of Jazan, University of Hertfordshire
Responsible party
Jonathan Sinclair (Professor, University of Central Lancashire) — Principal investigator
First posted
Jan 20, 2026
Start date
Dec 1, 2026 (estimated)
Primary completion
Jun 1, 2029 (estimated)
Completion
Dec 1, 2029 (estimated)
Last update
Feb 23, 2026

Study contacts

Jonathan Sinclair, DSc
Contact
jksinclair@lancashire.ac.uk
787565153

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Feb 2026. You cannot join it, but the record below documents what was studied.

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