The Effect of Standing and Different Sitting Positions on Lumbar Lordosis: Radiographic Study of 30 Healthy Volunteers
Study DesignRadiographic review of healthy volunteers.PurposeTo determine the ideal sitting positions by measuring changes in lumbar lordosis (LL) and pelvic parameters (PPs) in various positions.Overview of LiteratureProlonged sitting is generally accepted as an important risk factor for low back p...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Korean Spine Society
2015-10-01
|
| Series: | Asian Spine Journal |
| Subjects: | |
| Online Access: | http://www.asianspinejournal.org/upload/pdf/asj-9-762.pdf |
| _version_ | 1819264658101501952 |
|---|---|
| author | Il Youp Cho Si Young Park Jong Hoon Park Tae Kwon Kim Tae Wan Jung Hyun Min Lee |
| author_facet | Il Youp Cho Si Young Park Jong Hoon Park Tae Kwon Kim Tae Wan Jung Hyun Min Lee |
| author_sort | Il Youp Cho |
| collection | DOAJ |
| description | Study DesignRadiographic review of healthy volunteers.PurposeTo determine the ideal sitting positions by measuring changes in lumbar lordosis (LL) and pelvic parameters (PPs) in various positions.Overview of LiteratureProlonged sitting is generally accepted as an important risk factor for low back pain (LBP). It is now recognized that spinopelvic alignment is important for maintaining an energy-efficient posture.MethodsLateral spine radiographs of thrirty healthy volunteers (male participants) were taken in standing and five sitting positions. Radiographic measurement of LL and PPs was performed in each position. Statistical analysis was performed to identify a correlation between changes in the LL and PPs in each positions.ResultsLL in standing was 48.5°±8.7°. Sitting significantly decreased LL and segmental angle when compared with standing (p<0.05). The lower lumbar segmental angles (L4-5 and L5-S1) significantly decreased in all sitting positions (p<0.05), but the decrease was relatively less on the chair with lumbar support and in the 90°-angled chair. The sacral slope (SS) decreased and the pelvic tilt increased with decreasing LL in the sitting positions.ConclusionsSitting causes a reduction in LL and SS when compared with standing. It might cause a spinopelvic imbalance and result in chronic LBP. Our study showed that sitting on a chair with back support induced minimal changes to LL. Consequently, it is proposed that sitting on a chair with back support would be a much more ideal position than sitting on other types of chairs. |
| first_indexed | 2024-12-23T20:32:59Z |
| format | Article |
| id | doaj.art-3654f0e696a44d1d98923dfdeef99784 |
| institution | Directory Open Access Journal |
| issn | 1976-1902 1976-7846 |
| language | English |
| last_indexed | 2024-12-23T20:32:59Z |
| publishDate | 2015-10-01 |
| publisher | Korean Spine Society |
| record_format | Article |
| series | Asian Spine Journal |
| spelling | doaj.art-3654f0e696a44d1d98923dfdeef997842022-12-21T17:32:10ZengKorean Spine SocietyAsian Spine Journal1976-19021976-78462015-10-019576276910.4184/asj.2015.9.5.762844The Effect of Standing and Different Sitting Positions on Lumbar Lordosis: Radiographic Study of 30 Healthy VolunteersIl Youp Cho0Si Young Park1Jong Hoon Park2Tae Kwon Kim3Tae Wan Jung4Hyun Min Lee5Department of Orthopaedic Surgery, Korea University College of Medicine, Seoul, Korea.Department of Orthopaedic Surgery, Korea University College of Medicine, Seoul, Korea.Department of Orthopaedic Surgery, Korea University College of Medicine, Seoul, Korea.Department of Orthopaedic Surgery, Korea University College of Medicine, Seoul, Korea.Department of Orthopaedic Surgery, Korea University College of Medicine, Seoul, Korea.Department of Orthopaedic Surgery, Korea University College of Medicine, Seoul, Korea.Study DesignRadiographic review of healthy volunteers.PurposeTo determine the ideal sitting positions by measuring changes in lumbar lordosis (LL) and pelvic parameters (PPs) in various positions.Overview of LiteratureProlonged sitting is generally accepted as an important risk factor for low back pain (LBP). It is now recognized that spinopelvic alignment is important for maintaining an energy-efficient posture.MethodsLateral spine radiographs of thrirty healthy volunteers (male participants) were taken in standing and five sitting positions. Radiographic measurement of LL and PPs was performed in each position. Statistical analysis was performed to identify a correlation between changes in the LL and PPs in each positions.ResultsLL in standing was 48.5°±8.7°. Sitting significantly decreased LL and segmental angle when compared with standing (p<0.05). The lower lumbar segmental angles (L4-5 and L5-S1) significantly decreased in all sitting positions (p<0.05), but the decrease was relatively less on the chair with lumbar support and in the 90°-angled chair. The sacral slope (SS) decreased and the pelvic tilt increased with decreasing LL in the sitting positions.ConclusionsSitting causes a reduction in LL and SS when compared with standing. It might cause a spinopelvic imbalance and result in chronic LBP. Our study showed that sitting on a chair with back support induced minimal changes to LL. Consequently, it is proposed that sitting on a chair with back support would be a much more ideal position than sitting on other types of chairs.http://www.asianspinejournal.org/upload/pdf/asj-9-762.pdfLow back painSittingLumbar lordosisChair |
| spellingShingle | Il Youp Cho Si Young Park Jong Hoon Park Tae Kwon Kim Tae Wan Jung Hyun Min Lee The Effect of Standing and Different Sitting Positions on Lumbar Lordosis: Radiographic Study of 30 Healthy Volunteers Asian Spine Journal Low back pain Sitting Lumbar lordosis Chair |
| title | The Effect of Standing and Different Sitting Positions on Lumbar Lordosis: Radiographic Study of 30 Healthy Volunteers |
| title_full | The Effect of Standing and Different Sitting Positions on Lumbar Lordosis: Radiographic Study of 30 Healthy Volunteers |
| title_fullStr | The Effect of Standing and Different Sitting Positions on Lumbar Lordosis: Radiographic Study of 30 Healthy Volunteers |
| title_full_unstemmed | The Effect of Standing and Different Sitting Positions on Lumbar Lordosis: Radiographic Study of 30 Healthy Volunteers |
| title_short | The Effect of Standing and Different Sitting Positions on Lumbar Lordosis: Radiographic Study of 30 Healthy Volunteers |
| title_sort | effect of standing and different sitting positions on lumbar lordosis radiographic study of 30 healthy volunteers |
| topic | Low back pain Sitting Lumbar lordosis Chair |
| url | http://www.asianspinejournal.org/upload/pdf/asj-9-762.pdf |
| work_keys_str_mv | AT ilyoupcho theeffectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT siyoungpark theeffectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT jonghoonpark theeffectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT taekwonkim theeffectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT taewanjung theeffectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT hyunminlee theeffectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT ilyoupcho effectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT siyoungpark effectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT jonghoonpark effectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT taekwonkim effectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT taewanjung effectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers AT hyunminlee effectofstandinganddifferentsittingpositionsonlumbarlordosisradiographicstudyof30healthyvolunteers |