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Determining the effects of a single application of the sphenobasilar synchondrosis (SBS) decompression technique, on gastrointestinal symptoms during the menstrual cycle is an area that lacks of evidence and proper studies. Therefore the investigators consider this an interesting topic to study.
The menstrual cycle is determined by cyclic changes in hormones levels, whose secretion is regulated by the feedback system of the hypothalamic-pituitary-gonadal axis and lasts approximately 28 days. These hormones have direct effects on organs as well as on the peripheral and central nervous systems (CNS), acting alone or in combination to influence both bowel function and gastrointestinal symptoms.
Premenstrually, uterine prostaglandin production can mediate an inflammatory response characterized by pain, and during menstruation, abnormally high levels of prostaglandins in menstrual fluid can induce abnormal uterine contractions. In the intestine, prostaglandins can cause smooth muscle contractions, as well as reduced absorption and induced secretion of electrolytes in the small intestine, increasing gastrointestinal symptomatology.
A study concluded that sphenobasilar synchondrosis (SBS) dysfunctions may be directly related to changes in the endocrine and hormonal system, due to the location of the pituitary gland (endocrine gland responsible for the release mainly of follicle stimulating hormone (FSH) and lutein hormone (LH)). Thus, there is a relationship between the SBS decompression technique and gastrointestinal symptoms during the menstrual cycle.
However this theme lacks of scientific evidence, therefore the investigators intend to collaborate to increase knowledge in this area, determining the effects of the SBS decompression technique, on gastrointestinal symptoms during the menstrual cycle.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| SBS Decompression Technique | Experimental | The technique was preformed until the investigator felt a relaxation of the structures, with a maximum duration of 5 minutes. |
|
| Placebo Technique | Placebo Comparator | The technique was preformed during 2 minutes. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| SBS Decompression Technique | Other | The investigator who applied the technique stood on the right side, laterally to the headboard of the table, with feet flat on the floor, at an appropriate level in relation to the volunteer's headboard, and with a glove on his right hand. Then, he contacted the volunteer's sphenoid wings with his left hand and asked the volunteer to open her mouth, contacting the upper dental arch with the second and third fingers of his right hand. Subsequently, the investigator brought both hands together, followed by an inspiration towards the floor and then a translation towards the ceiling until he felt the structures relax, with a maximum duration of 5 minutes. A second Investigator was sitting on a chair, placed on the opposite side of the head of the table with a stopwatch in his dominant hand, in order to time the application time of each technique. |
| Measure | Description | Time Frame |
|---|---|---|
| Change from baseline in abdominal pain pre and post intervention | The participants were submited to constant evaluation through the diary that they had to fill in daily, during two menstrual cycles, which corresponds to a total of about 2 months. At the end of completing each cycle, the corresponding diary was sent to the researchers, so that they could record the information. | Two months after first intervention |
| Change from baseline in number of bowel movements (per day) pre and post intervention | The participants were submited to constant evaluation through the diary that they had to fill in daily, during two menstrual cycles, which corresponds to a total of about 2 months. At the end of completing each cycle, the corresponding diary was sent to the researchers, so that they could record the information. | Two months after first intervention |
| Change from baseline in type of feces pre and post intervention | The participants were submited to constant evaluation through the diary that they had to fill in daily, during two menstrual cycles, which corresponds to a total of about 2 months. At the end of completing each cycle, the corresponding diary was sent to the researchers, so that they could record the information. | Two months after first intervention |
| Change from baseline in nausea pre and post intervention | The participants were submited to constant evaluation through the diary that they had to fill in daily, during two menstrual cycles, which corresponds to a total of about 2 months. At the end of completing each cycle, the corresponding diary was sent to the researchers, so that they could record the information. | Two months after first intervention |
| Change from baseline in presence of abdominal distention pre and post intervention |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Natália MO Campelo, PhD | Contact | 938674365 | +351 | ncampelo.estsp.ipp@gmail.com |
| Name | Affiliation | Role |
|---|---|---|
| Natália MO Campelo, PhD | Escola Superior de Saúde do Politécnico do Porto | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Escola Superior da Saúde do Porto | Porto | 4200-072 | Portugal |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25851437 | Background | Bharadwaj S, Kulkarni G, Shen B. Menstrual cycle, sex hormones in female inflammatory bowel disease patients with and without surgery. J Dig Dis. 2015 May;16(5):245-55. doi: 10.1111/1751-2980.12247. | |
| 12404243 | Background | Chang L, Heitkemper MM. Gender differences in irritable bowel syndrome. Gastroenterology. 2002 Nov;123(5):1686-701. doi: 10.1053/gast.2002.36603. |
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|
| Placebo Technique | Other | The investigator was standing, on the right side, laterally to the headboard of the table with feet flat on the floor, at an appropriate level in relation to the headboard of the volunteer's and with a glove on his right hand. Then, he contacted the participant's sphenoid wings with his left hand and asked her to open her mouth. With the second and third fingers of the right hand, he made contact with the upper dental arch. These contacts were maintained for 2 minutes, without moving. A second investigator sat on a chair, placed on the opposite side of the table with the stopwatch in his dominant hand, in order to time the application time of each technique. |
|
The participants were submited to constant evaluation through the diary that they had to fill in daily, during two menstrual cycles, which corresponds to a total of about 2 months. At the end of completing each cycle, the corresponding diary was sent to the researchers, so that they could record the information.
| Two months after first intervention |
| Change from baseline in need to take laxatives pre and post intervention | The participants were submited to constant evaluation through the diary that they had to fill in daily, during two menstrual cycles, which corresponds to a total of about 2 months. At the end of completing each cycle, the corresponding diary was sent to the researchers, so that they could record the information. | Two months after first intervention |
| 15075457 | Background | Dajani EZ, Shahwan TG, Dajani NE. Prostaglandins and brain-gut axis. J Physiol Pharmacol. 2003 Dec;54 Suppl 4:155-64. |
| 23423645 | Background | Lim SM, Nam CM, Kim YN, Lee SA, Kim EH, Hong SP, Kim TI, Kim WH, Cheon JH. The effect of the menstrual cycle on inflammatory bowel disease: a prospective study. Gut Liver. 2013 Jan;7(1):51-7. doi: 10.5009/gnl.2013.7.1.51. Epub 2013 Jan 11. |
| 22621660 | Background | Bernstein MT, Graff LA, Targownik LE, Downing K, Shafer LA, Rawsthorne P, Bernstein CN, Avery L. Gastrointestinal symptoms before and during menses in women with IBD. Aliment Pharmacol Ther. 2012 Jul;36(2):135-44. doi: 10.1111/j.1365-2036.2012.05155.x. Epub 2012 May 24. |
| 15048600 | Background | Parlak E, Dagli U, Alkim C, Disibeyaz S, Tunc B, Ulker A, Sahin B. Pattern of gastrointestinal and psychosomatic symptoms across the menstrual cycle in women with inflammatory bowel disease. Turk J Gastroenterol. 2003 Dec;14(4):250-6. |
| 14612848 | Background | Elhadd TA, Neary R, Abdu TA, Kennedy G, Hill A, McLaren M, Akber M, Belch JJ, Clayton RN. Influence of the hormonal changes during the normal menstrual cycle in healthy young women on soluble adhesion molecules, plasma homocysteine, free radical markers and lipoprotein fractions. Int Angiol. 2003 Sep;22(3):222-8. |