Lecture 16 of 84week-02
Muscle fibers- Pennation angle
Prof. Varadhan SKM · IIT Madras
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- Biomechanics, IIT Madras (at NPTEL)
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All the lectures
- Introduction to forces - Resolving forces, principle of transmissibility
- Statics FBD and EOE
- Example problems on FBD and EOE
- Joints in human body
- Machines and mechanical advantage
- Levers and types of levers
- Insertion point and torque
- Practice problem 1
- Practice problem 2
- Key terminologies
- Anatomical planes and axis
- Sagittal plane movements
- Coronal plane movements
- Transverse plane movements
- Muscles - Muscle fascicles
- Muscle fibers- Pennation angle
- More on pennation angle
- Excitation contraction coupling
- Sliding filament theory
- Force length relationship
- Shoulder joints and muscles
- Shoulder problem 1
- Shoulder problem 2
- Elbow theory
- Elbow problem 1
- Elbow problem 2
- Elbow problem 3
- Wrist theory
- Finger theory
- Finger muscles
- Spine anatomy and movements
- Spine muscles
- Spine problem
- Hip anatomy and movements
- Hip muscles
- Hip problem
- Knee anatomy and movements
- Knee muscles
- Knee problem
- Ankle anatomy and movements
- Ankle muscles
- Ankle problem
- Grasping- reaching- chains
- D.O.F mobility, open/closed chain
- Forward kinematics and workspace
- 2R inverse kinematics
- 3R kinematics forward and inverse
- D-H parameters
- Velocity and jacobian
- 3R velocity
- Tissues and types of tissues
- Bone microstructure and cells
- Properties of bones
- Wolffs Law and Hookean behavior
- Elastic properties and stress strain relations
- Stress strain curve and mechanical properties of biological materials
- Bending of Bones
- Viscolelastic modelling
- Maxwell Model
- Voight Model
- Kelvin model
- Viscoelasticity in bones
- Tissues and its constituents
- Cartilages, ligaments and tendons
- Stress strain relations in tendons
- Tendon forces and factors affecting tendon property
- Gliding resistance, tendon wrapping and friction forces
- Enslaving - Intertendinuos force transfer and motor units
- Introduction to enslavement
- Enslaving effects in finger force production -1
- Enslaving effects in finger force production -2
- Wrist posture and finger interdependence -1
- Wrist posture and finger interdependence -2
- Wrist posture and finger interdependence -3
- Measurement of orientation in 3D space - Devices
- Rotation matrices in 2D and 3D2
- Animating using rotation matrices- Matlab Examples
- Composite rotation matrix and relative orientations
- Complex numbers and quaternions
- Singularity, Gimbal Lock, Advantages and disadvantages of parameterization methods
- Single finger kinematics measurement using IMU's
- IMU based Full hand kinematics measurement system (HKMS)
- Demonstration of the Hand Kinematics Measurement System (HKMS)
- Introduction to Gait and running