A quantitative comparison of two kinematic protocols for lumbar segment motion during gait

Kiernan, Damien; Malone, Ailish; OʼBrien, Timothy M.; Simms, Ciaran

doi:10.1016/j.gaitpost.2015.01.027

Cited by 6 publications

(3 citation statements)

References 31 publications

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“…In the transverse plane the bSEM was just above the above the 2° threshold suggested by McGinley (2009) but was comparable with the relatively large trialto-trial variability of 1.9°. 1 Note all values represent an average across all n=15 participant apart from the thoracic with respect to the lab in the sagittal plane for which the bCMC averaged across n=12 participants and it was indeterminate for the remaining n=3. …”

Section: Resultsmentioning

confidence: 99%

“…In order to overcome this problem, Saey et al (2011) later proposed using a marker wand, mounted on the posterior aspect of the thorax. However, as suggested by Kiernan et al (2015), this approach can lead to increased variability when compared to a skin-mounted marker set. We therefore suggest that the best option for tracking the thoracic spine during running is a rigid plate mounted at the top of the sternum.…”

Section: Discussionmentioning

confidence: 99%

“…Studies investigating lumbar movement have used either a rigid wand, mounted over a single lumbar vertebrae, or alternatively a set of skin-mounted makers placed across the lumbar region (Seay et al, 2008). In a recent paper, Kiernan et al (2015) suggested that a skin-mounted makers reduce kinematic variability and may therefore be more appropriate when analysing fast movement, such as running. However, the skin-mounted marker set first proposed by Seay et al (2008), involves the use of seven tracking markers placed across the lumbar spine.…”

Section: Introductionmentioning

confidence: 99%

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A marker set for measuring the kinematics of the lumbar spine and thoracic spine during running: a technical note

Preece

Bramah

Mason

2016

jhse

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A protocol for tracking the motion of the lumbar spine, which uses seven skin mounted markers, has been adopted in previous studies investigating running. However, this configuration of can be difficult to track with passive motion capture systems. This study therefore investigated whether a four-marker configuration could accurately reproduce the pose of the lumbar spine obtained using the seven-marker configuration. The study also investigated two methods of tracking the thorax. The first method consisted of markers attached to the sterum and the second used two markers placed bilaterally over the acromioclavicular joints and another on the posterior thoracic spine. Kinematic data was collect for n=15 male subjects and the pose, calculated using the different tracking configurations, compared for both the lumbar spine and thoracic spine. The results demonstrated a good match between two lumbar tracking marker sets. However, there was considerable difference between the two thoracic markers sets which was likely due to movement of the arms influencing the pose of the thorax. We therefore recommend the use of four makers to track the motion of the lumbar spine and a rigid plate, mounted at the top of the sternum, to track motion of the thoracic spine during running.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%