Skip to main content
. Author manuscript; available in PMC: 2014 Sep 3.
Published in final edited form as: J Biomech. 2013 Jul 19;46(13):2242–2249. doi: 10.1016/j.jbiomech.2013.06.029

Figure 3.

Figure 3

Protocol for measurement of crimp frequency in imaged tendons. (a) A region of interest (ROI) was drawn around the tendon (excluding portions near the grips), and the tendon width was detected (horizontal bar). The large box represents the ROI, whose center is denoted by the asterisk. (b) Vertical profile of the mean intensity across the tendon width. (c) Fourier transform of (b). The crimp frequency (green dotted line) was calculated from mean power frequency of (c). (d) Crimp frequency versus strain during dynamic loading at 0.5 Hz. As the tendon is stretched, the crimp frequency decreases.