Biomechanical Evaluation of Locomotion on the Russian BD-1 Treadmill in a Weightless Environment (KC-135)

and Operational Relevance 1 GOAL 2 INTRODUCTION 2 Hypotheses 4 METHODS AND MATERIALS 4 External Load, Bungee Extension and Treadmill Speed Measurement 6 Ground Reaction Force 7 Gait Parameters 7 Kinematics 7 Outcome Variables and Statistical Analysis 9 RESULTS 9 Locomotion Speed 9 Load and Displacement 10 Mean Total External Load 10 Mean Total External Load 10 Gait Parameters and Ground Reaction Force 12 Trial Analysis 13 Contact Time and Cadence 13 Typical GRF Trajectories 13 Peak Ground Reaction Force and Impulse 15 Kinematics 16 Qualitative Comments about Locomotion 16 Joint Kinematics 16 Forward Lean and Joint Displacements 20 Joint Velocities 21 DISCUSSION 22 CONCLUSIONS 25 REFERENCES 26 Appendix 28

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