Plain English Summary
It is assumed that in some patients with pain in the pelvic area, the dorsal joints of the pelvis may be mis-aligned. Due to this mis-aligment some specific ligaments become overstretched and painfull. Pressure on this painful ligament produces pain in a specific area. This procedure is called: the long dorsal ligament (LDL) test. Thus, when positive, this test is an indication of mis-alignment of the pelvic joint.
For patients with pain in the pelvic area there are exercises that are believed to relieve pain because they reposition the pelvic joints. It is unclear whether these exercises really can be effective. This study investigates whether these self-mobilization exercises are effective in correcting sacro-iliac
joint position. For this study patients that apply for treatment in our centre are asked to perform either the specific mobilisating exercise or a sham exercise. If the mobilization is effective the LDL test should be less painful.
Dr Jan-Paul Van Wingerden
Dr Jan-Paul Van Wingerden
The effect of self-mobilizing exercises for correction of counternutated Sacro-iliac joints in pelvic girdle pain patients
Self-mobilization exercises are effective in correcting sacro-iliac joint position
The study was initiated in 2012 (Q4). At that time ethics approval was not required. Study results were presented at a conference. Since it not our primary activity (we are a rehab centre) it took us a long time to convert the study results to a manuscript.
Randomized controlled trial
Primary study design
Secondary study design
Randomised controlled trial
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet.
Chronic pelvic girdle pain
Patients were randomized by pulling a lot from a bag.
Intervention: patients performed a self-mobilisation exercise according to the exercise described by Richard DonTigny.
Control group: patients performed from a similar posture to the intervention group a mobilisation in opposite direction.
Both groups made 3 repetitions of 5 seconds for the exercise.
Primary outcome measure
1. LDL test (pain provocation of long dorsal sacroiliac ligament) tested before and after each treatment.
2. Pain score visual analogue score before and after each treatment.
Secondary outcome measures
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Patients with chronic pelvic girdle pain who came to the Spine & Joint Centre for treatment.
2. Aged 18 years and olderage range
3. Positive LDL test
Target number of participants
100-150 (50-75 each group)
Participant exclusion criteria
Negative LDL test
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
Spine & Joint Centre, the Netherlands
Spine & Joint Centre (Netherlands)
Funding Body Type
Funding Body Subtype
Results and Publications
Publication and dissemination plan
A publication is prepared, however trial registration is required for publication. Results have been presented at the 8th Interdisciplinary World Conference of Low Back and Pelvic Pain in October 2013 (see abstract at https://www.spineandjoint.nl/wp-content/uploads/2018/03/abstract-Sam.pdf and poster at https://www.spineandjoint.nl/wp-content/uploads/2018/03/Poster-A5-Samantha_03.pdf ). Publication as soon as possible.
Intention to publish date
Participant level data
Available on request
Basic results (scientific)
Mobilizing exercise appears effective. The control exercise has opposite effect, which gives additional information.