Earth-Based Analogs & Modeling for Exercise Biomechanics ...
Transcript of Earth-Based Analogs & Modeling for Exercise Biomechanics ...
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National Aeronautics and Space Administration
Earth-Based Analogs & Modeling for Exercise Biomechanics in Space
Dec. 12th, 2018
Kaitlin Lostroscio
Johnson Space Center
& University of South Florida
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• University Collaboration• Digital Astronaut Simulation• Experimental Study• Results & Takeaways• Next Steps
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Outline
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National Aeronautics and Space Administration
University CollaborationDigital Astronaut SimulationExperimental StudyResults & TakeawaysNext Steps
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Center for Assistive, Rehabilitation & Robotics Technologies (CARRT) @ USF
Human-Robot Interaction Performance & Physical Rehabilitation
Training
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NASA Space Technology Research Fellowship (NSTRF17)
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National Aeronautics and Space Administration
University Collaboration
Digital Astronaut SimulationExperimental StudyResults & TakeawaysNext Steps
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Digital Astronaut Simulation (DAS)
Human
ExerciseSystem
Spacecraft
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Digital Astronaut Simulation (DAS)
Human
ExerciseSystem
Spacecraft
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Vibration Isolation System (VIS)
Crew Member
CountermeasureDevice
Vibration Isolation System
Space Vehicle
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Computer Assisted Rehabilitation Environment (CAREN) @ USF
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National Aeronautics and Space Administration
University CollaborationDigital Astronaut Simulation
Experimental StudyResults & TakeawaysNext Steps
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Computer Assisted Rehabilitation Environment (CAREN) @ USF
Analog & Digital Signalsvan den Bogert, A.J., Geijtenbeek, T., Even-Zohar, O. et al. A real-time system for biomechanical analysis of human movement and muscle function. Med Biol Eng Comput (2013) 51: 1069.
Human Body Model
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Heave (Y)
Sway (X)
Surge (Z)Roll
YawPitch
Computer Assisted Rehabilitation Environment (CAREN) @ USF
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18° Pitch
Computer Assisted Rehabilitation Environment (CAREN) @ USF
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Specific Objectives
1. To develop proof-of-concept for ground based environment for human-in-the-loop testing of VIS dynamics
2. To study the effect of platform motion on human kinematic and kinetic response while completing resistive and aerobic exercise.
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Specific Objectives
• Exercises of Interest:• Squats• Rowing
1. To develop proof-of-concept for ground based environment for human-in-the-loop testing of VIS dynamics
2. To study the effect of platform motion on human kinematic and kinetic response while completing resistive and aerobic exercise.
• DOFs of Interest:• 1 Translational• 1 Rotational
• Parameters of Interest:• Force• Motion
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Theory
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0 500 1000 1500 2000 2500
Knee
Ang
le (d
eg)
Frames (@ 100Hz)
Sample Squat Data
Bulk motion: Sinusoidal
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Theory
𝑦𝑦 𝑡𝑡 = 𝐴𝐴 sin 2𝜋𝜋𝜋𝜋𝑡𝑡Platform Dynamics:
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0 500 1000 1500 2000 2500
Knee
Ang
le (d
eg)
Frames (@ 100Hz)
Sample Squat Data
Bulk motion: Sinusoidal
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Constraint Determination
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Am
plitu
de (m
)
Frequency (Hz)
Amplitude vs. Frequency for Heave Constraints in Sinusoidal Response
Position = 0.18 m Velocity = 0.3 m/s Acceleration = 4.9 m/s^2
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Participants instructed to match platform motion
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Experimental Design
Frequencies Selected Reason0.10 Hz ARED MILT & ISS Acceleration Environment0.35 Hz ARED MILT & midway point0.60 Hz ARED MILT & exercise point of interest
Self-selected Nominal
Exercise & Platform Motion Frequencies
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• IRB Approved Human Subject Testing on CAREN
System Components:• 2 DOF of motion platform
Instrumentation:• Motion Capture – Kinematics• Force Plate Measurement – Kinetics
Environmental Distinctions:• 1G• No external weight
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Experimental Design
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Experimental Method: Subjects
N = 4
Inclusion Criteria1. Be between the ages of 18 and 65
years old2. Have no physical impairments3. Be able to complete exercise motions
such as squats and vertical rows
Subject Designation Gender Age Height (m) Weight (lbs / N)S1 Female 18 1.73 136.0 / 605.0S2 Female 22 1.62 121.2 / 539.1S3 Female 44 1.60 148.2 / 659.2S4 Male 22 1.86 172.2 / 766.0
Participation1 session, ~2 hours
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Experimental Method: Pre-Test Preparations
Training• Exercise Instruction• Example Videos• Instructed to match frequency of
platform motion
Preparations• Marker placement for
motion capture
Measurements• Height & Weight• Individualized Subject Parameters
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Experimental Method: Trials
# Exercise Heave Frequency Heave Amplitude Pitch Freq Pitch Amp3 Baseline Squat N/A (Static) N/A (Static) N/A N/A4 Squat 0.10 Hz Baseline Measured N/A N/A5 Squat 0.35 Hz Baseline Measured N/A N/A6 Squat 0.60 Hz Baseline Measured N/A N/A7 Squat Baseline Measured Hz Baseline Measured N/A N/A
Squat:
# Exercise Heave Frequency Heave Amplitude Pitch Freq Pitch Amp8 Baseline Row N/A (Static) N/A (Static) N/A N/A9 Row 0.10 Hz Baseline Measured N/A N/A10 Row 0.35 Hz Baseline Measured N/A N/A11 Row 0.60 Hz Baseline Measured N/A N/A12 Row Baseline Measured Hz Baseline Measured N/A N/A
Row:
13 Row Baseline Measured Hz Baseline Measured Baseline Measured Hz 0.5 deg14 Row Baseline Measured Hz Baseline Measured Baseline Measured Hz 1 deg15 Row Baseline Measured Hz Baseline Measured Baseline Measured Hz 2 deg16 Row Baseline Measured Hz Baseline Measured Baseline Measured Hz 3 deg
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Testing
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National Aeronautics and Space Administration
University CollaborationDigital Astronaut SimulationExperimental Study
Results & TakeawaysNext Steps
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Kinetic Data Processing
• Data Extraction
• Filtering
Unfiltered Filtered
• Computations– Resultant Force– Average Maximum Force– Average Force Range– Force Frequency Matching
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Kinetic Results: Ground Reaction Force Profiles
Squats
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Kinetic Results: Ground Reaction Force Profiles
Rows
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• Data Cleaning• Functional Skeletal Model
– Calculates Joint Center– Joint Angles
• Computations– Joint Angle ROM
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Kinematic Data Processing
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Kinematic Results
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National Aeronautics and Space Administration
University CollaborationDigital Astronaut SimulationExperimental StudyResults & Takeaways
Next Steps
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OpenSim
1. Scaling2. Inverse Kinematics3. Inverse Dynamics4. Static Optimization
OpenSim, displaying: Rajagopal, Apoorva, et al. "Full-Body Musculoskeletal Model for Muscle-Driven Simulation of Human Gait." IEEE Transactions on Biomedical Engineering 63.10 (2016): 2068-2079. (2016)
OpenSim: http://opensim.stanford.edu/Seth, A., Hicks J.L., Uchida, T.K., Habib, A., Dembia, C.L., Dunne, J.J., Ong, C.F., DeMers, M.S., Rajagopal, A., Millard, M., Hamner, S.R., Arnold, E.M., Yong, J.R., Lakshmikanth, S.K., Sherman,n M.A., Delp, S.L. OpenSim: Simulating musculoskeletal dynamics and neuromuscular control to study human and animal movement. PlosComputational Biology, 14(7). (2018)
Delp, S.L., Anderson, F.C., Arnold, A.S., Loan, P., Habib, A., John, C.T., Guendelman, E., Thelan, D.G. OpenSim: Open-source software to create and analyze dynamic simulations of movement. IEEE Transactions on Biomedical Engineering , vol 55, pp 1940-1950. (2007)
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JSC Facilities
Active Response Gravity Offload System (ARGOS)
Prototype Immersive Technology Lab(PIT)
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• Enhancing CAREN as an analog for a passive VIS
• Development for active VIS
• PIT & ARGOS data collections
• VIS analyses and design using motion capture & force data from human-in-the-loop testing
• Incorporation of data feedback in exercise systems
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Forward Work
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Kaitlin LostroscioSimulation & Graphics Branch | ER7Johnson Space [email protected]
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Contact
More information on this topic:Lostroscio, Kaitlin, "Developing Motion Platform Dynamics for Studying Biomechanical Responses During Exercise for Human Spaceflight Applications" (2018). Graduate Theses and Dissertations. https://scholarcommons.usf.edu/etd/7191