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Synovial Joints

Different types include hinge, saddle, plane/gliding, pivot, ellipsoid/condyloid, and ball and socket.

Structure of Joints

Components include articular cartilage, synovial membrane, joint cavity, ligaments, tendons, and bursa.

Newton's Laws

1st law states objects remain still or in motion unless acted upon, 2nd law relates force to its effect, and 3rd law explains opposite and equal reactions.

Centripetal Force

Force directed towards the center of a rotating body, as seen in figure skating.

Centrifugal Force

Force directed away from the center of a rotating body, like in the Hammer throw.

DST Triangle

Formula for distance, speed, and time relationship, represented as d=s*t.

Acceleration

Change in velocity over time.

Momentum

Calculated as mass multiplied by velocity, representing the quantity of motion.

Functions of Skeletal System

Include protection, movement, support, cell production, and mineral storage.

Rotation

Movement where a bone twists around its longitudinal axis.

Circumduction

Movement where a bone traces a cone shape.

Aerobic Training

More frequent exercise requiring 4-5 times a week with optimal heart rate at 70-80% of max heart rate.

Anaerobic Training

Less frequent exercise 2-3 times a week with optimal heart rate at 80-100% of max heart rate.

Resting Breath Rate

Normal range is 12-15 breaths per minute.

Max Heart Rate

Calculated as 220 minus age.