NCT07821021

Brief Summary

The goal of this clinical trial is to learn whether adding high-intensity electromyostimulation (Hi-EMS) to capacitive and resistive electric transfer (TECAR) therapy improves pain and functional performance in adults with chronic nonspecific low back pain. The main questions it aims to answer are:

  • Does adding Hi-EMS to TECAR therapy reduce low back pain at rest?
  • Does adding Hi-EMS reduce pain during the Five-Times-Sit-to-Stand Test?
  • Does adding Hi-EMS improve pressure pain threshold and performance on the - Five-Times-Sit-to-Stand Test? Researchers will compare TECAR therapy delivered with Hi-EMS to TECAR therapy delivered without Hi-EMS. Participants will:
  • Receive both treatment conditions in a randomized order
  • Wait one week between treatment sessions
  • Receive 10 minutes of capacitive electrical transfer followed by 10 minutes of resistive electrical transfer during each session
  • Receive Hi-EMS during the 10-minute resistive electrical transfer phase in one of the sessions
  • Complete pain, pressure pain threshold, and functional performance assessments immediately before and after each session

Trial Health

65
Monitor

Trial Health Score

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

Enrollment
37

participants targeted

Target at P25-P50 for not_applicable

Timeline
4mo left

Started Oct 2026

Shorter than P25 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

First Submitted

Initial submission to the registry

September 9, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

September 15, 2026

Completed
1 month until next milestone

Study Start

First participant enrolled

October 19, 2026

Expected
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 9, 2027

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 9, 2027

Last Updated

September 15, 2026

Status Verified

September 1, 2026

Enrollment Period

4 months

First QC Date

September 9, 2026

Last Update Submit

September 9, 2026

Conditions

Keywords

TECARelectrical stimulationback painheatthermotherapy

Outcome Measures

Primary Outcomes (2)

  • Pain intensity at rest

    Low back pain intensity at rest will be assessed using an 11-point Numerical Pain Rating Scale (NPRS), ranging from 0 ("no pain") to 10 ("worst pain imaginable"). Participants will rate their current low back pain while at rest before performing the functional test. Higher scores indicate greater pain intensity.

    Immediately before and immediately after each treatment session

  • Movement-Evoked Pain Intensity

    Movement-evoked low back pain intensity will be assessed immediately after the Five-Times-Sit-to-Stand Test using an 11-point Numerical Pain Rating Scale (NPRS), ranging from 0 ("no pain") to 10 ("worst pain imaginable"). Participants will rate the greatest low back pain experienced while performing the test. Higher scores indicate greater pain intensity.

    Immediately before and immediately after each treatment session.

Secondary Outcomes (2)

  • Pressure pain threshold

    Immediately before and immediately after each treatment session.

  • Five-Times-Sit-to-Stand Test

    Immediately before and immediately after each treatment session.

Study Arms (2)

TECAR Therapy Plus Hi-EMS

EXPERIMENTAL

Participants will receive TECAR therapy with concurrent Hi-EMS. The intervention will consist of 10 minutes of capacitive electrical transfer followed by 10 minutes of resistive electrical transfer, with Hi-EMS delivered only during the 10-minute resistive electrical transfer phase.

Device: TECAR Therapy plus Hi-EMS

TECAR Therapy Alone

ACTIVE COMPARATOR

Participants will receive TECAR therapy without Hi-EMS. The intervention will consist of 10 minutes of capacitive electrical transfer followed by 10 minutes of resistive electrical transfer.

Device: Tecar therapy alone

Interventions

TECAR therapy will be delivered using the BACK4 system (Winback Europa SAS, Biarritz, France). The intervention will consist of 10 minutes of capacitive electrical transfer (CET) followed by 10 minutes of resistive electrical transfer (RET). A conductive cream will be applied to the treatment area, and a return plate will be positioned over the abdomen. The Hi-EMS Focal mode will be activated only during the 10-minute RET phase and adjusted to produce a strong but comfortable stimulation without pain or excessive discomfort.

TECAR Therapy Plus Hi-EMS

TECAR therapy will be delivered using the BACK4 system (Winback Europa SAS, Biarritz, France). The intervention will consist of 10 minutes of capacitive electrical transfer (CET) followed by followed by 10 minutes of resistive electrical transfer (RET). A conductive cream will be applied to the treatment area, and a return plate will be positioned over the abdomen. Hi-EMS will not be activated during this condition.

TECAR Therapy Alone

Eligibility Criteria

Age21 Years - 60 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • to 60 years old
  • chronic nonspecific low back pain
  • minimum pain intensity of 3 on a 0-10 scale
  • be able to provide consent and comply with study procedures

You may not qualify if:

  • spinal fracture
  • tumor
  • radiculopathy
  • neurological or vascular condition
  • pregnancy
  • cardiac pacemaker or other implanted device
  • skin disorder or allergy
  • altered sensation in the treatment area
  • active or recent hemorrhage
  • cognitive impairments
  • liniments or heat rubs immediately before a study session
  • treatment for low back within the previous 6 weeks
  • currently receiving disability benefits because of low back pain
  • current or pending litigation related to low back pain

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Back PainHyperthermia

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsBody Temperature ChangesHeat Stress DisordersWounds and Injuries

Central Study Contacts

Richard Liebano, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Participants will receive both treatment conditions in a randomized order in a two-treatment, two-period crossover design. Treatment sessions will be separated by a one-week washout period. Participants will serve as their own controls.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD

Study Record Dates

First Submitted

September 9, 2026

First Posted

September 15, 2026

Study Start (Estimated)

October 19, 2026

Primary Completion (Estimated)

February 9, 2027

Study Completion (Estimated)

February 9, 2027

Last Updated

September 15, 2026

Record last verified: 2026-09

Data Sharing

IPD Sharing
Will not share

IPD sharing is not currently planned because a data-sharing process and repository have not been established for this study.