Transient perceived back pain induced by prolonged sitting in a backless office chair: are biomechanical factors involved?

Ergonomics ◽  
2019 ◽  
Vol 62 (11) ◽  
pp. 1415-1425 ◽  
Author(s):  
Ryan David Greene ◽  
Mona Frey ◽  
Samareh Attarsharghi ◽  
John Charles Snow ◽  
Matthew Barrett ◽  
...  
Keyword(s):  
Back Pain ◽  
Prolonged Sitting ◽  
Biomechanical Factors ◽  
Office Chair

scholarly journals Effects of Prolonged Sitting with Slumped Posture on Trunk Muscular Fatigue in Adolescents with and without Chronic Lower Back Pain

Medicina ◽  
2020 ◽  
Vol 57 (1) ◽  
pp. 3
Author(s):  
Kyoung-Sim Jung ◽  
Jin-Hwa Jung ◽  
Tae-Sung In ◽  
Hwi-Young Cho
Keyword(s):  
Back Pain ◽  
Lower Back Pain ◽  
Transversus Abdominis ◽  
Muscular Fatigue ◽  
Trunk Muscles ◽  
Control Group ◽  
Chronic Lower Back Pain ◽  
Median Frequency ◽  
Prolonged Sitting ◽  
Lower Back

Background and Objectives: This study investigated the effects of prolonged sitting on trunk muscular fatigue and discomfort in participants with and without chronic lower back pain (LBP). Material and Methods: This study included 15 patients with LBP and 15 healthy controls. All participants were instructed to sit on a height-adjustable chair with their knee and hip joints bent at 90° for 30 min, in slumped sitting postures. Surface electromyography was used to assess the median frequency of the internal obliques (IO)/transversus abdominis (TrA) and multifidus (MF) muscles. Perceived discomfort was measured using a Borg category ratio-scale. Median frequency of the trunk muscles and perceived discomfort after 30 min of sitting were compared with baseline. Result: There were no significant differences within the group and between both groups in the median frequency of bilateral IO and MF muscles. The LBP group showed significantly greater perceived discomfort after prolonged sitting, as compared to the control group. Conclusions: Prolonged sitting with slumped posture could increase the risk of experiencing lower back discomfort.

scholarly journals In VivoSpinal Posture during Upright and Reclined Sitting in an Office Chair

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Roland Zemp ◽  
William R. Taylor ◽  
Silvio Lorenzetti
Keyword(s):  
Back Pain ◽  
Spinal Column ◽  
Sitting Position ◽  
Working Lives ◽  
Wide Range ◽  
Subject Variability ◽  
Dynamic Seating ◽  
Vertebral Bodies ◽  
Back Problems ◽  
Office Chair

Increasing numbers of people spend the majority of their working lives seated in an office chair. Musculoskeletal disorders, in particular low back pain, resulting from prolonged static sitting are ubiquitous, but regularly changing sitting position throughout the day is thought to reduce back problems. Nearly all currently available office chairs offer the possibility to alter the backrest reclination angles, but the influence of changing seating positions on the spinal column remains unknown. In an attempt to better understand the potential to adjust or correct spine posture using adjustable seating, five healthy subjects were analysed in an upright and reclined sitting position conducted in an open, upright MRI scanner. The shape of the spine, as described using the vertebral bodies’ coordinates, wedge angles, and curvature angles, showed high inter-subject variability between the two seating positions. The mean lumbar, thoracic, and cervical curvature angles were29±15°,-29±4°, and13±8° for the upright and33±12°,-31±7°, and7±7° for the reclined sitting positions. Thus, a wide range of seating adaptation is possible through modification of chair posture, and dynamic seating options may therefore provide a key feature in reducing or even preventing back pain caused by prolonged static sitting.

Evaluation of Muscle Activities on Different Type of Exercises During Prolonged Sitting

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Mohammad Shahril Salim ◽  
◽  
Nor Fatihah Fujrah Mohd Nawi ◽  
Ahmad Faizal Salleh ◽  
Nurhidayah Omar ◽  
...  
Keyword(s):  
Back Pain ◽  
Muscle Activation ◽  
Erector Spinae ◽  
Prolonged Sitting ◽  
Emg Signal ◽  
Different Types ◽  
Muscle Activations ◽  
Internal Oblique ◽  
Electrical Muscle

Electromyography (EMG) signal is an analysis of electrical signals generated during muscular contractions that have been used to measure and record electrical muscle activity usually applied for medical tests. In this research EMG signal is used to; (1) evaluate muscle activations on different gender during prolonged sitting task; (2) investigate the influence of various types of exercise during prolonged sitting on muscle activation and (3) proposed the best exercise that can help to prevent low back discomfort. Twenty subjects (10 males and 10 females) were recruited from undergraduate engineering student’s education background in UniMAP with age ranging between 20 to 24 years old. The subject must be asymptomatic back pain, normal BMI and right-handed. . Three different types of sitting, one hour per sitting were done by each subject in order to reach the goals of this study. First sitting (sitting without exercise) was conducted while second and third sitting (sitting with exercise) were done in order the investigate the effectiveness of the exercises. Two different types of exercise were performed in second and third sitting, both of exercises were chosen from Mc Kenzie’s exercise. EEGOTM sport device were used to record the EMG signal from four types of muscles which are Erector Spinae, Latissimus Dorsi, Internal Oblique and External Oblique. By comparing the Root Mean Square (RMS) values from EMG signals muscle activation during prolonged sitting and the effectiveness of performing the exercises have been evaluated based on RMS values. As the results, muscle become deactivate during prolonged sitting. The best exercise to reduce back pain discomfort is exercise type 1 (Seated Lumbar Exercise) and it is recommended to perform this exercise regularly to reduce the risk of getting hazardous disease due to prolonged sitting.

scholarly journals An Evaluation of an Innovative Exercise to Relieve Chronic Low Back Pain in Sedentary Workers

2020 ◽  
pp. 001872082096608
Author(s):  
Pongsatorn Saiklang ◽  
Rungthip Puntumetakul ◽  
James Selfe ◽  
Gillian Yeowell
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Pain Intensity ◽  
Muscle Fatigue ◽  
Chronic Low Back Pain ◽  
Muscle Activity ◽  
Trunk Muscle ◽  
Low Back ◽  
Prolonged Sitting ◽  
Lumbar Extension

Objective The purpose of the study was to examine the effectiveness of a novel supported dynamic lumbar extension with the abdominal drawing-in maneuver (ADIM) technique on stature change, deep abdominal muscle activity, trunk muscle fatigue, and pain intensity during prolonged sitting in chronic low back pain (CLBP) participants. Background Prolonged sitting can cause trunk muscle fatigue from continuous contraction of deep trunk muscles in seated postures. Deficiency of activity of deep muscles can reduce muscular support of the spine, causing stress on spinal structures, which could result in pain. Method Thirty participants with CLBP were randomly allocated: (a) control—sitting without exercise, and (b) intervention—supported dynamic lumbar extension with the ADIM technique. Results Compared to the intervention condition, the control condition demonstrated significantly greater deterioration in stature change, increased levels of deep trunk muscle fatigue, and an increase in pain during prolonged sitting. Conclusion The supported dynamic lumbar extension with the ADIM technique appears to provide a protective effect on detrimental stature change and deep trunk muscle fatigue. In addition, it prevented an increase in pain intensity during prolonged sitting in people with CLBP. Application Sedentary behavior harms health, particularly affecting the lower back. Clinicians can use the intervention to induce dynamic lumbar movement, and this exercise can maintain deep trunk muscle activity during prolonged sitting, thereby helping to prevent low back pain (LBP) problems.

Physiological and cognitive measures during prolonged sitting: Comparisons between a standard and multi-axial office chair

2019 ◽  
Vol 78 ◽  
pp. 176-183 ◽  
Author(s):  
Joseph Triglav ◽  
Erika Howe ◽  
Jaskirat Cheema ◽  
Blaire Dube ◽  
Mark J. Fenske ◽  
...  
Keyword(s):  
Cognitive Measures ◽  
Prolonged Sitting ◽  
Office Chair

Examining the Presence of Back Pain in Competitive Athletes: A Focus on Stress and Recovery

2019 ◽  
Vol 28 (2) ◽  
pp. 188-195 ◽  
Author(s):  
Jahan Heidari ◽  
Johanna Belz ◽  
Monika Hasenbring ◽  
Jens Kleinert ◽  
Claudia Levenig ◽  
...  
Keyword(s):  
Back Pain ◽  
Confidence Interval ◽  
Odds Ratio ◽  
Outcome Variable ◽  
Cross Sectional ◽  
Competitive Athletes ◽  
Cross Sectional Design ◽  
Biomechanical Factors

Context: Explanatory approaches for back pain (BP) in athletes focus on biomechanical factors while neglecting psychological perspectives. Psychological factors have gained importance in the prediction of injuries in athletes and BP in the general population, with stress and recovery emerging as central risk factors. However, scarce evidence exists regarding the role of these aspects for the prevalent burden of BP. Objective: To investigate the association between stress and recovery parameters and the presence of BP. Design: Cross-sectional design. Setting: The questionnaires were distributed after the training sessions. Participants: A total of 345 competitive athletes (mean age = 18.31 y [SD = 5.40]) were investigated. The classification of the athletes’ competitive status was based on performance level. Interventions: Data were collected using questionnaires for the assessment of stress, recovery, and BP. Main Outcome Measures: The authors performed a multiple logistic regression to obtain odds ratios for stress and recovery parameters with regard to the outcome variable BP status. Results: For stress, the dimension “overall stress” (odds ratio = 1.83; 95% confidence interval, 1.30–2.59; P = .001) and the scale “physical complaints” (odds ratio = 1.68; 95% confidence interval, 1.25–2.25; P = .001) of the general version of the Recovery-Stress Questionnaire resulted to be significantly associated with BP. None of the recovery-related scales displayed a statistically significant relationship with BP. Conclusion: The outcomes of this study imply a modest association between stress and the presence of BP in competitive athletes. Practitioners may take these findings into account regarding the conception of training and for monitoring purposes.

Effectiveness of a Lumbar Support Continuous Passive Motion Device in the Prevention of Low Back Pain During Prolonged Sitting

Spine ◽  
2007 ◽  
Vol 32 (23) ◽  
pp. E674-E677 ◽  
Author(s):  
Yoichi Aota ◽  
Haruhiko Iizuka ◽  
Yusuke Ishige ◽  
Takashi Mochida ◽  
Takeshi Yoshihisa ◽  
...  
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Continuous Passive Motion ◽  
Low Back ◽  
Passive Motion ◽  
Lumbar Support ◽  
Prolonged Sitting

Harnessing an Ergonomic Solution for Prolonged Sitting in Flight

2015 ◽  
Vol 23 (1) ◽  
pp. 20-25 ◽  
Author(s):  
Eri P. Sadai ◽  
Issachar Gilad
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Lumbar Spine ◽  
Muscle Fatigue ◽  
Muscular Fatigue ◽  
Low Back ◽  
Ergonomic Design ◽  
Design Formula ◽  
Prolonged Sitting

Low-back pain is one of the consequences of sitting. Muscular fatigue leads to shifting from a straight posture into a slumped one. We believe that corrective supports to the pelvis and lumbar spine must be complemented with restraining shoulder straps to bypass muscle fatigue. This ergonomic design “formula” could potentially improve prolonged passive sitting conditions, such as on long-haul flights, in which most passengers sit in cramped surroundings. Our study’s results confirm this hypothesis. Further studies are required concerning cardiac and circulatory responses to the use of this device.

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