Which biomechanical models are currently used in standing posture analysis?

Crétual, Armel

doi:10.1016/j.neucli.2015.07.004

Cited by 33 publications

(28 citation statements)

References 97 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Previous reports questioned the assumptions used routinely to estimate CoM from CoF data. For example, Cretual et al [39] suggested the single pendulum model should be used with caution to estimate CoM during more challenging conditions. Lafond et al [40] also found error in this method of calculating CoM for more difficult poses, and Yeung et al [26] demonstrated that Kinect performed better when recording more challenging balance tasks compared with force plates.…”

Section: Discussionmentioning

confidence: 99%

A new process to measure postural sway using a Kinect depth camera during a Sensory Organisation Test

et al. 2020

View full text Add to dashboard Cite

Posturography provides quantitative, objective measurements of human balance and postural control for research and clinical use. However, it usually requires access to specialist equipment to measure ground reaction forces, which are not widely available in practice, due to their size or cost. In this study, we propose an alternative approach to posturography. It uses the skeletal output of an inexpensive Kinect depth camera to localise the Centre of Mass (CoM) of an upright individual. We demonstrate a pipeline which is able to measure postural sway directly from CoM trajectories, obtained from tracking the relative position of three key joints. In addition, we present the results of a pilot study that compares this method of measuring postural sway to the output of a NeuroCom SMART Balance Master. 15 healthy individuals (age: 42.3 ± 20.4 yrs, height: 172 ± 11 cm, weight: 75.1 ± 14.2 kg, male = 11), completed 25 Sensory Organisation Test (SOT) on a NeuroCom SMART Balance Master. Simultaneously, the sessions were recorded using custom software developed for this study (CoM path recorder). Postural sway was calculated from the output of both methods and the level of agreement determined, using Bland-Altman plots. Good agreement was found for eyes open tasks with a firm support, the agreement decreased as the SOT tasks became more challenging. The reasons for this discrepancy may lie in the different approaches that each method takes to calculate CoM. This discrepancy warrants further study with a larger cohort, including fall-prone individuals, cross-referenced with a marker-based system. However, this pilot study lays the foundation for the development of a portable device, which could be used to assess postural control, more cost-effectively than existing equipment.

show abstract

Section: Discussionmentioning

confidence: 99%

A new process to measure postural sway using a Kinect depth camera during a Sensory Organisation Test

et al. 2020

View full text Add to dashboard Cite

show abstract

“…actigraphy), and a more complex model of balance and posture control (e.g. the inverted pendulum or multi-segment models) [16]. …”

Section: Discussionmentioning

confidence: 99%

Day-to-day variation in sleep quality and static balance: results from an exploratory study

et al. 2017

View full text Add to dashboard Cite

Abstract-Sleep plays a critical role in promoting health and wellbeing. Variations in sleep quality and pattern may effect human balance. This study investigated whether day-to-day variations in sleep quality result in balance deteriorations during quiet standing. Ten healthy volunteers underwent sleep and balance assessment over two consecutive days. Sleep quality was assessed using sleep diaries, whereas balance was assessed in a gait laboratory to measure Center of Pressure (CoP) and Center of Mass (CoM) displacement. Results demonstrated an association among worsening in sleep quality and CoP displacement measures, both with eyes open and closed. The correlation coefficients between CoP and CoM also showed significant differences in subjects reporting a sleep worsening over the two days. These results suggest that short-term worsening in sleep quality may affect our balance and its associated mechanisms of control.

show abstract

“…Based on the pressure shift, the sway path length of the center of pressure (COP) was calculated. This parameter has proved valuable as a measurand for posture balance22,23,24 ) .…”

Section: Methodsmentioning

confidence: 99%

Interrelationship between postural balance and body posture in children and adolescents

Ludwig

2017

J Phys Ther Sci

View full text Add to dashboard Cite

[Purpose] This study examined possible interrelationships between postural sway and posture parameters in children and adolescents with a particular focus on posture weakness. [Subjects and Methods] 308 healthy children and adolescents (124 girls, 184 boys, aged 12.3 ± 2.5 years) participated in the study. Posture parameters (posture index, head protrusion, trunk inclination) were determined based on posture photos in the sagittal plane. Postural sway was measured during 20 seconds on a force plate. The Pearson’s product-moment correlation coefficients between the anthropometric and posture parameters and the sway path length (SPL) were calculated, as well as the coefficient of determination R2. [Results] There is a weak but significant correlation between age or body mass index of the test subjects and the SPL. There is no statistically significant correlation between posture parameters and the SPL. Children and adolescents with posture weakness do not exhibit a changed SPL. [Conclusion] Therefore, therapy of poor posture must be considered separately from therapeutic measures for the improvement of balance skills.

show abstract

Which biomechanical models are currently used in standing posture analysis?

Cited by 33 publications

References 97 publications

A new process to measure postural sway using a Kinect depth camera during a Sensory Organisation Test

A new process to measure postural sway using a Kinect depth camera during a Sensory Organisation Test

Day-to-day variation in sleep quality and static balance: results from an exploratory study

Interrelationship between postural balance and body posture in children and adolescents

Contact Info

Product

Resources

About