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

Greene, Ryan; Frey, Mona; Attarsharghi, Samareh; Snow, John Charles; Barrett, Matthew O.; Carvalho, Diana De

doi:10.1080/00140139.2019.1661526

Cited by 17 publications

(12 citation statements)

References 30 publications

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“…In recent years, there have been some attempts to combine several different kinds of instruments (sensors and electronic devices) when exploring the effects of prolonged sitting on individuals. The devices used in these studies included electrocardiogram (ECG) [14], EMG (electrocardiogram) [63,65,86], IMU (Inertial Measurement Unit consisting of accelerometers, gyroscope and compass) [57,82,87,88], motion capture systems such as Vicon (Vicon Motion Systems Ltd., Oxford, UK) [87,89] and Optotrak (Northern Digital Inc, Ontario, Canada) [62,71] as well as infrared cameras [10,29].…”

Section: Objective Measurements Using Different Types Of Instrumentsmentioning

confidence: 99%

“…By measuring blood flow, heart rate and body temperatures on legs and left tympanic membrane (core temperature), Hodges et al [14] compared four types of wheelchair cushions and covers made of different materials and concluded that seat covers played an important role in sitting comfort. As lower-cost electronic chips with greater reliability become available, researchers have attempted to investigate the relationship between body movements and sitting comfort/discomfort by combining IMU, EMG and pressure mats [52,53,55,86,87]. Another instrument that has been used in the evaluation of sitting comfort is the motion capture system which can record body movements by attaching reflective markers on anatomical regions of interest [52].…”

Section: Objective Measurements Using Different Types Of Instrumentsmentioning

confidence: 99%

“…Another instrument that has been used in the evaluation of sitting comfort is the motion capture system which can record body movements by attaching reflective markers on anatomical regions of interest [52]. Such multifactor measurement has been applied to many areas from office chairs [57,86] to car cushions [63] and surgery seats [65].…”

Section: Objective Measurements Using Different Types Of Instrumentsmentioning

confidence: 99%

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Review of Measuring Microenvironmental Changes at the Body–Seat Interface and the Relationship between Object Measurement and Subjective Evaluation

Liu

Cascioli

McCarthy

2020

Sensors

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Being seated has increasingly pervaded both working and leisure lifestyles, with development of more comfortable seating surfaces dependent on feedback from subjective questionnaires and design aesthetics. As a consequence, research has become focused on how to objectively resolve factors that might underpin comfort and discomfort. This review summarizes objective methods of measuring the microenvironmental changes at the body–seat interface and examines the relationship between objective measurement and subjective sensation. From the perspective of physical parameters, pressure detection accounted for nearly two thirds (37/54) of the publications, followed by microclimatic information (temperature and relative humidity: 18/54): it is to be noted that one article included both microclimate and pressure measurements and was placed into both categories. In fact, accumulated temperature and relative humidity at the body–seat interface have similarly negative effects on prolonged sitting to that of unrelieved pressure. Another interesting finding was the correlation between objective measurement and subjective evaluation; however, the validity of this may be called into question because of the differences in experiment design between studies.

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Section: Objective Measurements Using Different Types Of Instrumentsmentioning

confidence: 99%

Section: Objective Measurements Using Different Types Of Instrumentsmentioning

confidence: 99%

Section: Objective Measurements Using Different Types Of Instrumentsmentioning

confidence: 99%

See 1 more Smart Citation

Review of Measuring Microenvironmental Changes at the Body–Seat Interface and the Relationship between Object Measurement and Subjective Evaluation

Liu

Cascioli

McCarthy

2020

Sensors

View full text Add to dashboard Cite

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“…Furthermore, these sensors are routinely used in biomechanics studies to quantify spine angles when tasks are relatively static (e.g. office and automotive seating studies) and line of sight issues preclude the use of optoelectrical motion capture systems [17,18]. Since the relative angle between two sensors placed at the top and bottom of a spine curve mathematically parallels the measure taken at the vertebral bodies on plain film radiographs, it is logical that these measures may have a higher criterion-concurrent validity than tape measures that curve along the back at the static end RoM.…”

Section: Introductionmentioning

confidence: 99%

Spinal mobility in radiographic axial spondyloarthritis: criterion concurrent validity of classic and novel measurements

Snow

Simpson

Rahman

et al. 2021

BMC Musculoskelet Disord

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Background Limitations in spinal mobility are a characteristic feature of Axial Spondyloarthritis. Current clinical measurements of spinal mobility have shown low criterion-concurrent validity. This study sought to evaluate criterion-concurrent validity for a clinically feasible measurement method of measuring spine mobility using tri-axial accelerometers. Methods Fifteen radiographic-Spondyloarthritis patients were recruited for this study. Two postural reference radiographs, followed by three trials in forward, left and right lateral bending were taken. For all trials, three measurements were collected: tape (Original Schober’s, Modified Schober’s, Modified-Modified Schober’s, Lateral Spinal Flexion Test and Domjan Test), followed immediately by synchronized radiograph and accelerometer measurements at end range of forward and bilateral lateral flexion. The criterion-concurrent validity of all measurement methods was compared to the radiographic measures using Pearson’s correlation coefficients. A Bland-Altman analysis was conducted to assess agreement. Results In forward bending, the accelerometer method (r = 0.590, p = 0.010) had a stronger correlation to the radiographic measures than all tape measures. In lateral bending, the Lateral Spinal Flexion tape measure (r = 0.743, p = 0.001) correlated stronger than the accelerometer method (r = 0.556, p = 0.016). The Domjan test of bilateral bending (r = 0.708, p = 0.002) had a stronger correlation to the radiographic measure than the accelerometer method. Conclusions Accelerometer measures demonstrated superior criterion-concurrent validity compared to current tape measures of spinal mobility in forward bending. While a moderate correlation exists between accelerometer and radiographs in lateral bending, the Lateral Spinal Flexion Test and Domjan Test were found to have the best criterion-concurrent validity of all tests examined in this study.

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“…[13,14] Furthermore, these sensors are routinely used in biomechanics studies to quantify spine angles when tasks are relatively static (e.g. o ce and automotive seating studies) [15,16]. Since the relative angle between two sensors placed at the top and bottom of a spine curve mathematically parallels the measure taken at the vertebral bodies on plain lm radiographs, it is logical that these measures may have a higher criterion-concurrent validity than tape measures that curve along the back at the static end RoM.…”

Section: Introductionmentioning

confidence: 99%

Spinal Mobility in Radiographic Axial Spondyloarthritis: Criterion Concurrent Validity of Classic and Novel Measurements

Snow

Simpson

Rahman

et al. 2021

Preprint

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Background: Limitations in spinal mobility are a characteristic feature of Axial Spondyloarthritis. Current clinical measurements of spinal mobility have shown low criterion-concurrent validity. This study sought to evaluate criterion-concurrent validity for a clinically feasible measurement method of measuring spine mobility using tri-axial accelerometers.Methods: 15 radiographic-Spondyloarthritis patients were recruited for this study. Two postural reference radiographs, followed by three trials in forward, left and right lateral bending were taken. For all trials, three measurements were collected: tape (Original Schober’s, Modified Schober’s, Modified-Modified Schober’s, Lateral Spinal Flexion Test and Domjan Test), followed immediately by synchronized radiograph and accelerometer measurements at end range of forward and bilateral lateral flexion. The criterion-concurrent validity of all measurement methods were compared to the radiographic measures using Pearson’s correlation coefficients. A Bland-Altman analysis was conducted to assess agreement.Results: In forward bending, the accelerometer method (r=0.590, p=0.010) had a stronger correlation to the radiographic measures than all tape measures. In lateral bending, the Lateral Spinal Flexion tape measure (r=0.743, p=0.001) correlated stronger than the accelerometer method (r=0.556, p=0.016). The Domjan test of bilateral bending (r=0.708, p=0.002) had a stronger correlation to the radiographic measure than the accelerometer method. Conclusions: Accelerometer measures demonstrated superior criterion-concurrent validity compared to current tape measures of spinal mobility in forward bending. While a moderate correlation exists between accelerometer and radiographs in lateral bending, the Lateral Spinal Flexion Test and Domjan Test were found to have the best criterion-concurrent validity of all tests examined in this study.

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

Cited by 17 publications

References 30 publications

Review of Measuring Microenvironmental Changes at the Body–Seat Interface and the Relationship between Object Measurement and Subjective Evaluation

Review of Measuring Microenvironmental Changes at the Body–Seat Interface and the Relationship between Object Measurement and Subjective Evaluation

Spinal mobility in radiographic axial spondyloarthritis: criterion concurrent validity of classic and novel measurements

Spinal Mobility in Radiographic Axial Spondyloarthritis: Criterion Concurrent Validity of Classic and Novel Measurements

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