Biomechanics Lab Exam Review
Electromyography (& the gait cycle):
What is Electromyography?
What does EMG measure?
How is the skin prepared for surface EMG?
How can you design a research project to evaluate which muscles are active during a given movement?
What are the steps necessary to get from raw data to processed data?
What are the clinical applications of EMG?
What are the gait cycle's major events, periods, and phases and their relative timings and intervals?
How can you develop hypotheses for the roles of various muscles during the gait cycle?
Forces:
What are Newton’s three laws and how can they be applied to different activities?
What is force and what are its characteristics?
How do you draw a complete free body diagram?
How can you calculate forces?
What is static equilibrium and how can you apply it to solve force problems?
What is the difference between static and kinetic friction?
How can you calculate the coefficient of static friction using the Force Platform Method and the Incline Plane Method, and what are some sources of error associated with each method?
How do weight and surface affect the coefficient of static friction?
How can you design a research project to calculate the coefficient of static friction?
To design a research project to calculate the coefficient of static friction, you would need to identify the materials and equipment you will use, the method you will use to measure the coefficient of static friction, and any sources of error that could affect your results.
What is the standard model of friction (ideal friction curve)?
The ideal friction curve shows the relationship between the force of friction and the normal force for a given set of materials.
How can you locate and draw normal and frictional forces from a photograph of a sporting activity, and what purpose do these forces serve?
To locate and draw normal and frictional forces from a photograph of a sporting activity, you must identify the surfaces in contact and the direction of motion.
Normal forces serve to keep the object from sinking into the surface, while frictional forces serve to oppose the motion of the object.
How can you compute the variables associated with friction, such as the coefficient of friction, normal force, and force of friction?
To compute the variables associated with friction, such as the coefficient of friction, normal force, and force of friction, you would typically need to perform experiments or use equations based on physical laws. Here are some steps and equations that may be useful:
Moments of Force
Definition of Moment of Force
(De)stabilizing component and turning component of a muscular force
Calculation of Moments of Force and Other Variables
Calculation of Centre of Gravity
Limitations and Precision of the Centre of Gravity Board Method
Types of Levers and Their Parts
Identification of Levers in the Human Body and in Activities/Tasks
Calculation of Mechanical Advantage and Understanding its Factors
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