10.5061/DRYAD.T7D934C
Funken, Johannes
German Sport University Cologne
Willwacher, Steffen
German Sport University Cologne
Heinrich, Kai
German Sport University Cologne
Müller, Ralf
German Sport University Cologne
Hobara, Hiroaki
National Institute of Advanced Industrial Science and Technology
Grabowski, Alena
University of Colorado Boulder
Potthast, Wolfgang
German Sport University Cologne
Data from: Long jumpers with and without a transtibial amputation have
different 3D center of mass and joint take-off step kinematics
Dryad
dataset
2019
Joint angle
Performance analysis
Paralympics
Prosthetics
2019-03-28T20:44:00Z
2019-03-28T20:44:00Z
en
https://doi.org/10.1098/rsos.190107
21726911 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
Long jumpers with below the knee amputation (BKA) have achieved remarkable
performances, yet the underlying biomechanics resulting in these jump
distances are unknown. We measured 3D motion and used multi-segment
modelling to quantify and compare the center of mass (COM) and joint
kinematics of three long jumpers with BKA and seven non-amputee long
jumpers during the take-off step of the long jump. Despite having the same
jump distances, athletes with BKA, who used their affected leg for the
take-off step, had lower sagittal plane hip and knee joint range of motion
and positioned their affected leg more laterally relative to the COM
compared to non-amputee athletes. Athletes with BKA had a longer
compression phase and greater downward movement of their COM, suggesting
that their affected leg (lever) was less rigid compared to the biological
leg of non-amputees. Thus, athletes with BKA used a different kinematic
mechanism to redirect horizontal to vertical velocity compared to
non-amputee athletes. The specific movement patterns of athletes with BKA
during the take-off step were constrained by the mechanical properties of
the prosthesis. These results provide a basis for coaches and athletes to
develop training protocols that improve performance and inform the design
of future prostheses.
Long_Jump_Model_OutputModel Output Files used for parameter
calculation.RSOS_Model_Output.zip