How to detect heel strike and toe off from left/right vertical force data?

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I'm stacked in identifying HS and TO of my data. In the attachment data, you will find the right and left force. Also, there's the left and right contact. In the left and right contact columns 1 means contact and 0 means no contact. When the value changes from 0 to 1 = heel strike, and when the data is changing from 1 to 0 = toe-off. How can I identify when data is changing?
Thanks very much for the help!!!

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William Rose
William Rose 2022년 9월 7일
@Mario, yuou might want to check out this article on this topic. (I am one of the authors.)
Comparison of methods for kinematic identification of footstrike and toe-off during overground and treadmill running
We compared various methods for measuring heel strike and toe-off in the gaitlab, for runners on treadmill and not.
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William Rose
William Rose 2022년 9월 9일
@Mario, you're welcome.
You could consolidate the two plot() commands into one, and remove "hold on":
grid on; xlabel('Time (ms)'); ylabel('F_z (N)');
title('Left G.R.F.')
Good luck with your research.

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