Comparison of Abdominal Draw-in Maneuver With Real-time Ultrasound Imaging Biofeedback vs Conservative Physical Therapy in Patients With Chronic Low Back Pain
Condition(s) studied
Investigational drug(s) / intervention(s)
Conservative Physical Therapy: Transcutaneous Electrical Nerve Stimulation (TENS):It is an electrotherapy modality commonly used in pain management. Conventional TENS will be applied to our patients. The frequency of Conventional TENS will be 50 Hz, the pulse duration will be 80 µs, the amplitude will be of mild to moderate intensity as perceived by the patient, and the duration will be 20 minutes. Hot Pack:It is a superficial heat therapy method commonly used to reduce muscle spasms, increase circulation, and alleviate pain.The packs, which are kept in hydrocollator tanks, will be applied at a temperature that will not harm the patient.The application time is 20 minutes. Therapeutic Ultrasound:This method, which uses sound waves to support tissue healing, creates heating and healing effects in deep tissues and is commonly used to reduce pain and relieve muscle spasmsThe frequency of the applied ultrasound will be 1 MHz, with an intensity of 1.5 W/cm², and it will be applied for 8 minutes in continuous mode
Abdominal Draw-in Manuever: Starting Position: The patient lies in a supine position with knees bent and feet flat on the ground. The neck and spine are kept in a neutral position. Breath Control: The patient focuses on abdominal expansion while inhaling and flattening the abdomen while exhaling. Transversus Abdominis Activation: The patient attempts to draw the abdominal muscles inward (pulling the navel toward the spine). During this movement, care should be taken to avoid pressing the lower back against the ground or contracting the hip muscles. The goal is to activate only the deep abdominal muscles. Checking for Proper Muscle Activation: The patient can place their fingertips on the lower abdominal region (just above the pelvic bone) to feel whether the transversus abdominis muscle is activating correctly. Maintaining the Position: The patient holds this activation for 5-10 seconds while continuing to breathe naturally, then relaxes. Muscles should be fully relaxed between repetitions.
Real-Time Ultrasound Biofeedback with Abdominal Draw-In Manuever: The patient, who has been instructed on the abdominal drawing-in exercise, assumes a supine position with knees bent. The ultrasound screen is positioned so that both the practitioner and the patient can see it. The researcher places the linear ultrasound probe on the patient's transversus abdominis muscle to obtain an image, which is then shown to the patient for awareness. The patient is instructed to keep their eyes on the screen and follow their muscle activity throughout the exercise. During the exercise, the patient's muscle is displayed on the screen, and they are asked to hold the contraction at its maximum level for 10 seconds. After the contraction phase, the patient is instructed to relax and rest for 2 minutes. The treatment is completed with a total of 10 repetitions.
Study summary
The aim of this study is to compare the effectiveness of abdominal drawing-in maneuver with real-time ultrasound biofeedback to conservative treatment in patients with chronic nonspecific low back pain.
Eligibility
Primary outcome measure(s)
- Visual Analogue Scale — before treatment
Pain was evaluated using a 10 cm long Visual Analogue Scale (VAS) during rest and activity (0 = no pain, 10 = very severe pain). - Visual Analogue Scale — In the 3rd week of treatment
Pain was evaluated using a 10 cm long Visual Analogue Scale (VAS) during rest and activity (0 = no pain, 10 = very severe pain). - Muscle Thickness — before treatment
The linear probe is placed transversely at the point where the iliac crest intersects with the middle point of the T12 rib, crossing the mid-axillary line. The position of the linear probe is adjusted until all abdominal muscles are visible. To standardize the images, the center point of the probe in the image is shifted 2 cm laterally to align with the insertion of the superficial fascia of the transversus abdominis muscle. The thickness of the transversus abdominis muscle is determined by the distance between the superficial and deep fascia at the thickest point in the image. The thickness between the two fasciae is measured using the digital caliper of the device. - Muscle Thickness — In the 3rd week of treatment
The linear probe is placed transversely at the point where the iliac crest intersects with the middle point of the T12 rib, crossing the mid-axillary line. The position of the linear probe is adjusted until all abdominal muscles are visible. To standardize the images, the center point of the probe in the image is shifted 2 cm laterally to align with the insertion of the superficial fascia of the transversus abdominis muscle. The thickness of the transversus abdominis muscle is determined by the distance between the superficial and deep fascia at the thickest point in the image. The thickness between the two fasciae is measured using the digital caliper of the device.
Trial sites (1)
| Facility | City | Region | Status |
|---|---|---|---|
| Abant Izzet Baysal University | Bolu | Turkey (Türkiye) | Recruiting |
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This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
View NCT06856642 on ClinicalTrials.gov ↗ ← All trials in Turkey