tSCS and AR on Pain and Balance in Diabetic Peripheral Neuropathy

June 1, 2026 updated by: Riphah International University

Combined Effects of Transcutaneous Spinal Cord Stimulation (tSCS) and Augmented Reality (AR) Training on Pain and Balance in Diabetic Neuropathy Patients.

tSCS and AR-based training have individually shown benefits in neuromotor rehabilitation; no study to date has evaluated their combined effects on pain, balance, lower-limb strength, retention, and vibration sense in diabetic neuropathy. The rationale for combining them lies in their complementary mechanisms: tSCS at 30 Hz activates large-diameter Aβ afferents, inhibiting nociceptive input, enhancing spinal excitability, and facilitating motor activation.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Detailed Description

In Pakistan, 26.3% of the population is affected, and DN impacts about 40% of cases, with early signs reducing function. (9-11) Standard care includes glycemic control, medications like duloxetine and pregabalin, topical agents, and modalities such as TENS.

Alongside pain, lower-limb strength declines due to motor axonal degeneration and prolonged disuse, (1) limiting mobility and increasing the risk of falls. Balance impairments are frequent in DN and result from compromised proprioceptive input and impaired postural control mechanisms; (4) these deficits are exacerbated by pain-related inactivity and muscular weakness.

Augmented reality (AR) based rehabilitation delivers multisensory feedback, such as visual, vestibular, and proprioceptive inputs, during interactive, task-specific training. It enhances sensorimotor coordination, dynamic postural stability, and proprioceptive reweighting. AR training can improve balance responses, promote lower-limb engagement, and reinforce accurate proprioceptive input.

The tSCS enabled stepping in individuals with complete motor loss, confirming its impact on lower-limb functional recovery. Additionally, this stimulation frequency targets mechano-sensory pathways associated with vibration sense and is believed to support retention of sensorimotor gains through repeated activation of neuroplastic mechanisms at the spinal and cortical levels.

Study Type

Interventional

Enrollment (Estimated)

36

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Pakistan
    • Punjab Province
      • Rawalpindi, Punjab Province, Pakistan
        • Pakistan Railway Hospital

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • More than or equals to 4 score on Douleur Neuropathique 4 Questionnaire
  • More than or equals to 6 Hz at Neurothesiometer
  • More than or equals to 4 score on the Numeric Pain Rating Scale (NPRS)

Exclusion Criteria:

  • Cognitively compromised (MOCA ≤ 26/30)
  • Metallic implants at skull
  • Shunting
  • Skin allergy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Transcutaneous spinal cord stimulation and Augmented Reality Group
Other: transcutaneous spinal cord stimulation
Transcutaneous spinal cord stimulation will be administered non-invasively using surface electrodes placed over the D12-L1 spinal segment. This segmental level has been shown to effectively engage lower-limb motor and sensory networks across multiple spinal segments. Stimulation will be delivered using the Soterix 1×1 Transcutaneous Electrical Stimulation (TES) unit. Stimulation will be applied at a frequency range of 30 Hz. Pulse duration of 1 ms, and intensity will be set at 2 mA. A ramp-up and ramp-down time of 30 seconds will be used to enhance participant comfort during the start and end of each stimulation session, following standardized electrode placement and safety protocols.
Other: Augmented Reality
AR-based rehabilitation will consist of interactive balance and coordination tasks conducted in a virtual environment, with real-time visual feedback provided to guide movement accuracy and postural control. The core training block will include five structured modules: interactive kicking exercises to promote ankle and knee coordination; color-target foot-reaching tasks to enhance proprioception and reaction time; virtual obstacle navigation to improve gait and stepping control; static and dynamic balance challenges, such as maintaining posture on virtual planks; and lower-limb strengthening activities, including squats and stepping-based games. Each module will be performed for 5-8 minutes, with brief rest periods between tasks.
Active Comparator: Augmented Reality Group
Other: Augmented Reality
AR-based rehabilitation will consist of interactive balance and coordination tasks conducted in a virtual environment, with real-time visual feedback provided to guide movement accuracy and postural control. The core training block will include five structured modules: interactive kicking exercises to promote ankle and knee coordination; color-target foot-reaching tasks to enhance proprioception and reaction time; virtual obstacle navigation to improve gait and stepping control; static and dynamic balance challenges, such as maintaining posture on virtual planks; and lower-limb strengthening activities, including squats and stepping-based games. Each module will be performed for 5-8 minutes, with brief rest periods between tasks.
Active Comparator: Transcutaneous spinal cord stimulation Group
Other: transcutaneous spinal cord stimulation
Transcutaneous spinal cord stimulation will be administered non-invasively using surface electrodes placed over the D12-L1 spinal segment. This segmental level has been shown to effectively engage lower-limb motor and sensory networks across multiple spinal segments. Stimulation will be delivered using the Soterix 1×1 Transcutaneous Electrical Stimulation (TES) unit. Stimulation will be applied at a frequency range of 30 Hz. Pulse duration of 1 ms, and intensity will be set at 2 mA. A ramp-up and ramp-down time of 30 seconds will be used to enhance participant comfort during the start and end of each stimulation session, following standardized electrode placement and safety protocols.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Numeric Pain Rating Scale (NPRS)
Time Frame: Up to week 5 (baseline/week 1/week 5)
The Numeric Pain Rating Scale (NPRS) is a quick, 11-point measure (0 = no pain to 10 = worst imaginable) commonly used across clinical and research settings. Recent studies demonstrate test-retest reliability ranging from 0.58 to 0.93 (good to excellent), with moderate evidence for a minimal clinically important difference (MCID) of 1.5-2.5 points.
Up to week 5 (baseline/week 1/week 5)
Time Up and Go (TUG)
Time Frame: Up to week 5 (Baseline/week 1/week 5)
The TUG test is a simple, clinically validated tool used to assess dynamic balance and functional mobility. It requires an individual to rise from a seated position, walk three meters, turn, return, and sit down. The TUG demonstrated excellent test-retest reliability, with intraclass correlation coefficients (ICC) ranging from 0.89 to 0.94 across multiple trials.
Up to week 5 (Baseline/week 1/week 5)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
30 Second Chair Stand Test
Time Frame: Up to week 5 (Baseline/week 1/week 5)
The 30-Second Chair Stand Test is a widely used, performance-based tool for assessing lower-limb strength and functional mobility. Among individuals with type 2 diabetes mellitus, a population commonly affected by diabetic neuropathy, the test has demonstrated excellent reliability. A test-retest intraclass correlation coefficient (ICC) of 0.92, indicating excellent relative reliability. In terms of measurement precision, the standard error of measurement (SEM) was 1.08 repetitions, and the smallest real difference (SRD) was 3 repetitions, reflecting the threshold for clinically meaningful change.
Up to week 5 (Baseline/week 1/week 5)
Neurothesiometer
Time Frame: Up to week 5 (Baseline/Week 1/week 5)
The neurothesiometer is a non-invasive and reliable instrument used to assess vibration perception threshold (VPT). It has demonstrated excellent reliability, with intra-class correlation coefficients (ICCs) exceeding 0.90, indicating strong measurement consistency. A VPT cut-off value of ≥ 6 Hz is indicative of neuropathy. Owing to its ease of use, objective quantification, and ability to detect subclinical neuropathy, the neurothesiometer is highly valuable in clinical practice. Its superior standardization makes it a preferred method for evaluating protective sensation and vibration loss, particularly in individuals with diabetes.
Up to week 5 (Baseline/Week 1/week 5)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Riphah International University

Investigators

  • Principal Investigator: Mirza Obaid Baig, MSPT, Riphah International University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

June 15, 2026

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

January 31, 2027

Study Registration Dates

First Submitted

April 30, 2026

First Submitted That Met QC Criteria

June 1, 2026

First Posted (Actual)

June 2, 2026

Study Record Updates

Last Update Posted (Actual)

June 2, 2026

Last Update Submitted That Met QC Criteria

June 1, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • REC02262 Mahnoor Imtiaz

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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