DOI: 10.5061/dryad.sbcc2frcw
title: Data from: A pioneering experimental investigation of a novel in-situ dynamic characterization of the tensile/compression stress-strain mechanism on human plantar soft tissue

description: We have conducted the first in-situ and in-vivo dynamic mechanical test on
 human plantar soft tissue. A dynamic mechanical analysis (DMA)-like device
 has been invented to perform the in-situ and in-vivo stress-strain tests
 on living plantar in order to characterize the material mechanism of
 biological soft tissue, whereas it is nearly impossible to prepare a
 sample from a living body for classical tests. A series of pioneering
 tests of tensile/compression on the heel of ten volunteers are reported,
 with the reference of tests on mimic foot model made by silicon rubber,
 standard silicon rubber brick sample, and finite elementary analysis. In
 addition to demonstrating the effectiveness of the device and approach,
 interesting correlations between the results and clinic data were found,
 suggesting considerable potential for the invention in future research.
description: Test protocol:
 The volunteer testee put
 their heel pad on the detection hole, with the point right below the rear
 end of calcaneus at the center. The detector with suction cup
 automatically rises and touches the pad, and vacuum is then applied to
 adjoint the skin. The vacuum degree provided by regular laboratory oil
 pump is sufficient for the suction without uncomforted feeling reported by
 testees. The reciprocal tensile/compression is processed for ten seconds
 (Fig. 1d), with the amplitude of ±2mm and frequency of 2Hz. The amplitude is
 chosen by observing the regular tensile/compression motion of healthy
 plantar pad, and the frequency is determined by an empirical limit of
 human foot usage in common sense. The tests on mimic foot model and brick sample
 are similar.
description: # Data from: A pioneering experimental investigation of a novel in-situ
 dynamic characterization of the tensile/compression stress-strain
 mechanism on human plantar soft tissue ## Description of the data and file
 structure The primary\_data\_anon\_upload\_dryad.xlsx is an extension of
 table 1 in the manuscript. Please note that for privacy protection, the
 policy requires to publish no more than 3 indirect identifiers, thus the
 info of gender, weight, and random one of age and height of each testee
 are marked out, and the BMI are required to be marked out. The
 v1-TC2.opju, v4-TCjyy.opju, v6-TCcrb.opju are the original
 tensile/compression test data of volunteers 1,4 and 6. The
 mimicfoot-sample\_dataTC5.opju is the original test data of mimic foot.
 The brick-sample\_dataTC3.opju is the original test data of brick sample.
 The FEA-fullfoot-heel-TC.opju is the FEA simulation. In all these forms
 and figures, the X-axis is time, Y-axis shows force (in color black) and
 displacement (in color red), which presents the stress-strain behavior.
 These data correspond respectively to the figure 1 in the manuscript. ##
 Sharing/Access information Links to other publicly accessible locations of
 the data: The full original data of all trials of each testee are held
 confidential due to privacy and ethics. Access is conditional under
 certain protocol, please contact the author for full access if necessary.
 ## Code/Software The data are processed in MS Excel and Origin.