Do pain expectancies cause pain in chronic low back patients? A clinical investigation
The present study investigated whether pain expectancies cause pain in chronic low back patients. Back patients ( N = 29) were requested to perform four exercise bouts (two with each leg), each consisting of flexing and extending the knee three times at maximal force (Cybex 350 System). During each...
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| Veröffentlicht in: | Behaviour research and therapy 1996-11, Vol.34 (11), p.919-925 |
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| container_title | Behaviour research and therapy |
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| creator | Crombez, Geert Vervaet, Leen Baeyens, Frank Lysens, Roland Eelen, Paul |
| description | The present study investigated whether pain expectancies cause pain in chronic low back patients. Back patients (
N = 29) were requested to perform four exercise bouts (two with each leg), each consisting of flexing and extending the knee three times at maximal force (Cybex 350 System). During each exercise bout the baseline pain, the expected pain and experienced pain were recorded. Patients also reported their experienced fear of further injury to the back. Furthermore, the peak force of both knee flexors and extensors was assessed. Although patients did expect a back pain increase during the first exercise bout with each leg, no evidence was found for the thesis that pain expectancies generate increases in subjective pain experiences. Instead, the reported pain expectancy was readily corrected during the next exercise bout, whereas the experienced pain remained unchanged. Furthermore, a high pain expectancy co-occurred with (1) a marginally significant fear of (re)injury, and (2) a significant lower peak torque of the knee flexors. These results are consistent with conditioning models which state that pain expectations are associated with a fear response and an urge to avoid the pain. |
| doi_str_mv | 10.1016/S0005-7967(96)00049-6 |
| format | Article |
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N = 29) were requested to perform four exercise bouts (two with each leg), each consisting of flexing and extending the knee three times at maximal force (Cybex 350 System). During each exercise bout the baseline pain, the expected pain and experienced pain were recorded. Patients also reported their experienced fear of further injury to the back. Furthermore, the peak force of both knee flexors and extensors was assessed. Although patients did expect a back pain increase during the first exercise bout with each leg, no evidence was found for the thesis that pain expectancies generate increases in subjective pain experiences. Instead, the reported pain expectancy was readily corrected during the next exercise bout, whereas the experienced pain remained unchanged. Furthermore, a high pain expectancy co-occurred with (1) a marginally significant fear of (re)injury, and (2) a significant lower peak torque of the knee flexors. These results are consistent with conditioning models which state that pain expectations are associated with a fear response and an urge to avoid the pain.</description><subject>Adult</subject><subject>Back</subject><subject>Biological and medical sciences</subject><subject>Clinical trials</subject><subject>Exercise - psychology</subject><subject>Expectations</subject><subject>Female</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Humans</subject><subject>Internal-External Control</subject><subject>Isometric Contraction</subject><subject>Low Back Pain - psychology</subject><subject>Low Back Pain - rehabilitation</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Miscellaneous</subject><subject>Pain</subject><subject>Pain Measurement</subject><subject>Pain Threshold</subject><subject>Psychology</subject><subject>Psychology and medicine</subject><subject>Psychology. Psychoanalysis. Psychiatry</subject><subject>Psychology. Psychophysiology</subject><subject>Set (Psychology)</subject><subject>Sick Role</subject><issn>0005-7967</issn><issn>1873-622X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1996</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>7QJ</sourceid><recordid>eNqFkV1LHDEUhoNUdKv-BGEopdiL0SSTZCZXItqqIHhhW3oXMpkTGzs72SYzfvx7z7rLXvRGCIST9zkfeQ8hh4weM8rUyR2lVJa1VvWRVl8xELpUW2TGmroqFee_P5DZBtklH3N-wLBqON0hO43WVIpqRn5dxGJhw1DA8wLcaAcXIBfOThlW73jcnxSH4Io-PhWtdX9RGAMMYz4tzgrXB9Rsj-Aj5DHcoxaHfbLtbZ_hYH3vkZ_fv_04vypvbi-vz89uSicZG8vKi1q2ErSXWjBOu1Z4KxtltXa8g4rattWtp7wTjNa2894qwfGDUHPZMl7tkS-ruosU_03Y38xDdtD3doA4ZVM3ChvVAsFP_4EPcUoDzmY4E1iT6wYhuYJcijkn8GaRwtymF8OoWZpu3kw3S0eNVubNdKMw73BdfGrn0G2y1i6j_nmt24xW-bS0OW8wLrmkUiN2usIAHXsMkEzGbQwOupBwN6aL4Z1BXgH-wp1Y</recordid><startdate>19961101</startdate><enddate>19961101</enddate><creator>Crombez, Geert</creator><creator>Vervaet, Leen</creator><creator>Baeyens, Frank</creator><creator>Lysens, Roland</creator><creator>Eelen, Paul</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><general>Elsevier Science Ltd</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QJ</scope><scope>7TK</scope><scope>7X8</scope></search><sort><creationdate>19961101</creationdate><title>Do pain expectancies cause pain in chronic low back patients? A clinical investigation</title><author>Crombez, Geert ; Vervaet, Leen ; Baeyens, Frank ; Lysens, Roland ; Eelen, Paul</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c511t-3f475b5e9f594120db4fa586a99c2de30abb9bf02d4107adffa642873e725b123</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1996</creationdate><topic>Adult</topic><topic>Back</topic><topic>Biological and medical sciences</topic><topic>Clinical trials</topic><topic>Exercise - psychology</topic><topic>Expectations</topic><topic>Female</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Humans</topic><topic>Internal-External Control</topic><topic>Isometric Contraction</topic><topic>Low Back Pain - psychology</topic><topic>Low Back Pain - rehabilitation</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Miscellaneous</topic><topic>Pain</topic><topic>Pain Measurement</topic><topic>Pain Threshold</topic><topic>Psychology</topic><topic>Psychology and medicine</topic><topic>Psychology. Psychoanalysis. Psychiatry</topic><topic>Psychology. Psychophysiology</topic><topic>Set (Psychology)</topic><topic>Sick Role</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Crombez, Geert</creatorcontrib><creatorcontrib>Vervaet, Leen</creatorcontrib><creatorcontrib>Baeyens, Frank</creatorcontrib><creatorcontrib>Lysens, Roland</creatorcontrib><creatorcontrib>Eelen, Paul</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Applied Social Sciences Index & Abstracts (ASSIA)</collection><collection>Neurosciences Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Behaviour research and therapy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Crombez, Geert</au><au>Vervaet, Leen</au><au>Baeyens, Frank</au><au>Lysens, Roland</au><au>Eelen, Paul</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Do pain expectancies cause pain in chronic low back patients? A clinical investigation</atitle><jtitle>Behaviour research and therapy</jtitle><addtitle>Behav Res Ther</addtitle><date>1996-11-01</date><risdate>1996</risdate><volume>34</volume><issue>11</issue><spage>919</spage><epage>925</epage><pages>919-925</pages><issn>0005-7967</issn><eissn>1873-622X</eissn><coden>BRTHAA</coden><abstract>The present study investigated whether pain expectancies cause pain in chronic low back patients. Back patients (
N = 29) were requested to perform four exercise bouts (two with each leg), each consisting of flexing and extending the knee three times at maximal force (Cybex 350 System). During each exercise bout the baseline pain, the expected pain and experienced pain were recorded. Patients also reported their experienced fear of further injury to the back. Furthermore, the peak force of both knee flexors and extensors was assessed. Although patients did expect a back pain increase during the first exercise bout with each leg, no evidence was found for the thesis that pain expectancies generate increases in subjective pain experiences. Instead, the reported pain expectancy was readily corrected during the next exercise bout, whereas the experienced pain remained unchanged. Furthermore, a high pain expectancy co-occurred with (1) a marginally significant fear of (re)injury, and (2) a significant lower peak torque of the knee flexors. These results are consistent with conditioning models which state that pain expectations are associated with a fear response and an urge to avoid the pain.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><pmid>8990543</pmid><doi>10.1016/S0005-7967(96)00049-6</doi><tpages>7</tpages></addata></record> |
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| source | Applied Social Sciences Index & Abstracts (ASSIA); MEDLINE; ScienceDirect Freedom Collection (Elsevier) |
| subjects | Adult Back Biological and medical sciences Clinical trials Exercise - psychology Expectations Female Fundamental and applied biological sciences. Psychology Humans Internal-External Control Isometric Contraction Low Back Pain - psychology Low Back Pain - rehabilitation Male Middle Aged Miscellaneous Pain Pain Measurement Pain Threshold Psychology Psychology and medicine Psychology. Psychoanalysis. Psychiatry Psychology. Psychophysiology Set (Psychology) Sick Role |
| title | Do pain expectancies cause pain in chronic low back patients? A clinical investigation |
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