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Pregnancy causes the development of biomechanical adaptations in the musculoskeletal system, especially in the lumbopelvic region. In this context, the thoracolumbar fascia (TLF) is the most important structure in this region and is an exoskeleton for the muscles of the lumbar region. However, it has not been objectively clarified how the TLF adapts to the changes in the lumbopelvic region during pregnancy. Therefore, the aim of this pilot study is to investigate the trimester-specific biomechanical (stiffness, decrement and tone) and viscoelastic (creep and relaxation time) properties of the TLF, which adapts to the lumbopelvic region changes in pregnant women.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| First trimester pregnant women (first pregnancy) | Pregnant women who are in their first pregnancy and in their first trimester will be evaluated. |
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| Second trimester pregnant women (first pregnancy) | Pregnant women who are in their first pregnancy and in their second trimester will be evaluated. |
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| Third trimester pregnant women (first pregnancy) | Pregnant women who are in their first pregnancy and in their third trimester will be evaluated. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Evaluation of biomechanics and viscoelastic properties of Thoracolumbar fascia | Other | The biomechanical and viscoelastic properties of the Thoracolumbar fascia will be measured in the side line position. Measurements will be taken from three different points; L1, L3-4 and L5 level. |
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of biomechanical properties of thoracolumbar fascia | Measuring of the stiffness (N/m) of the thoracolumbar fascia (with MyotonPro, Myoton AS, Tallin, Estonia) in the side line position. | Measurement the baseline stiffness values of Thoracolumbar fascia between 10-14 weeks, between 20-24 weeks and between 32-36 weeks |
| Evaluation of viscoelastic properties of thoracolumbar fascia | Measuring of the relaxation time (ms) of the thoracolumbar fascia (with MyotonPro, Myoton AS, Tallin, Estonia) in the side line position. | Measurement the baseline relaxation time values of Thoracolumbar fascia between 10-14 weeks, between 20-24 weeks and between 32-36 weeks |
| Evaluation of biomechanical properties of thoracolumbar fascia | Measuring of the tone (Hz) of the thoracolumbar fascia (with MyotonPro, Myoton AS, Tallin, Estonia) in the side line position. | Measurement the baseline tone values of Thoracolumbar fascia between 10-14 weeks, between 20-24 weeks and between 32-36 weeks |
| Evaluation of viscoelastic properties of thoracolumbar fascia | Measuring of the creep of the thoracolumbar fascia (with MyotonPro, Myoton AS, Tallin, Estonia) in the side line position. | Measurement the baseline creep values of Thoracolumb Measurement the baseline creep values of Thoracolumbar fascia between 10-14 weeks, between 20-24 weeks and between 32-36 weeks |
| Evaluation of biomechanical properties of thoracolumbar fascia | Measuring of the decrement of the thoracolumbar fascia (with MyotonPro, Myoton AS, Tallin, Estonia) in the side line position. | Measurement the baseline decrement values of Thoracolumbar fascia between 10-14 weeks, between 20-24 weeks and between 32-36 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of Body Weight | Measuring of the Body Weight | Measurement the baseline body weight (kg) at evaluation time |
| Evaluation of Body Mass Index (BMI) | BMI (kg/m2) will be calculated as person's weight in kilograms divided by the square of height in meters. |
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Inclusion Criteria:
Exclusion Criteria:
Pregnant women at the first pregnancy
Pregnant women (first pregnancy)
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| İstanbul Medeniyet University | Istanbul | Turkey (Türkiye) |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 29679246 | Result | Lohr C, Braumann KM, Reer R, Schroeder J, Schmidt T. Reliability of tensiomyography and myotonometry in detecting mechanical and contractile characteristics of the lumbar erector spinae in healthy volunteers. Eur J Appl Physiol. 2018 Jul;118(7):1349-1359. doi: 10.1007/s00421-018-3867-2. Epub 2018 Apr 20. | |
| 30254233 | Result |
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| Measurement the baseline BMI values at evaluation time |
| Hu X, Lei D, Li L, Leng Y, Yu Q, Wei X, Lo WLA. Quantifying paraspinal muscle tone and stiffness in young adults with chronic low back pain: a reliability study. Sci Rep. 2018 Sep 25;8(1):14343. doi: 10.1038/s41598-018-32418-x. |
| 12551802 | Result | Tincello DG, Teare J, Fraser WD. Second trimester concentration of relaxin and pregnancy related incontinence. Eur J Obstet Gynecol Reprod Biol. 2003 Feb 10;106(2):237-8. doi: 10.1016/s0301-2115(02)00360-3. No abstract available. |
| 34616306 | Result | Wu Z, Wang Y, Ye Z, Guan Y, Ye X, Chen Z, Li C, Chen G, Zhu Y, Du J, Chen G, Liu W, Xu X. Effects of Age and Sex on Properties of Lumbar Erector Spinae in Healthy People: Preliminary Results From a Pilot Study. Front Physiol. 2021 Sep 20;12:718068. doi: 10.3389/fphys.2021.718068. eCollection 2021. |
| 28167175 | Result | Sanjana F, Chaudhry H, Findley T. Effect of MELT method on thoracolumbar connective tissue: The full study. J Bodyw Mov Ther. 2017 Jan;21(1):179-185. doi: 10.1016/j.jbmt.2016.05.010. Epub 2016 Jun 3. |