Can Saggital Motion Help Estimate Frontal Displacement in Treadmill Walking?

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SUMMARY

The discussion centers on the feasibility of using sagittal motion analysis to estimate frontal displacement during treadmill walking. The researcher, Tanner, records subjects from both frontal and sagittal planes, utilizing a 10 cm calibration marker to measure center of mass displacement. The challenge arises from subjects not maintaining a fixed position on the treadmill, leading to variable marker lengths in recordings. A suggested solution involves placing a fixed marker alongside the moving one to facilitate accurate calculations by comparing the size changes between the two markers.

PREREQUISITES
  • Understanding of motion analysis techniques
  • Familiarity with video recording and analysis software
  • Knowledge of biomechanics related to gait analysis
  • Experience with calibration methods in motion studies
NEXT STEPS
  • Research advanced motion analysis software for gait studies
  • Explore techniques for accurate calibration in video analysis
  • Learn about the biomechanics of center of mass during walking
  • Investigate methods for integrating sagittal and frontal plane data
USEFUL FOR

Researchers in biomechanics, motion analysis specialists, and professionals involved in gait analysis will benefit from this discussion, particularly those focused on improving accuracy in movement measurement during treadmill walking.

btd
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Hello everybody,
I hope I am posting this under right topic.
I am running a research project and we are recording videos of subjects from both frontal (back) and saggital (side) plane while they are walking on the treadmill.
I put 10cm long calibration marker on the back of the subject. This way, when I analyze the video recording I can calculate how much center of mass displaced during walking. But the problem is subjects do not walk on the same spot on the treadmill all the time. They go front and back and this makes my 10 cm, 8cm or 12cm (estimation) on the recording
I am just wondering if I measure the displacement from saggital recording, can this help to calculate how much it makes change on 10 cm in frontal recording.

or is there a another way?
Thanks
Tanner
 
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I think I understand - you are looking at how much a marker between two body parts shrinks and grows as they move?.
Can you place another marker by the side of the first but make it fixed so that it only changes size because of the saggital motion?
Then you simply divide one measurement by the other.
 

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