🔹 Biomechanical Principles (Definition))

Question 1

What is force?

Answer 1

Force is a push or pull that causes movement.

Question 2

What is leverage in biomechanics?

Answer 2

Leverage is using bones/joints as levers for movement.

Question 3

What is a 1st Class Lever?

Answer 3

A 1st Class Lever is arranged as Effort–Fulcrum–Load.

Example: head/neck extension.

Question 4

What is a 2nd Class Lever?

Answer 4

A 2nd Class Lever is arranged as Fulcrum–Load–Effort.

Example: calf raise.

Question 5

What is a 3rd Class Lever?

Answer 5

A 3rd Class Lever is arranged as Fulcrum–Effort–Load.

Example: bicep curl.

Question 6

What is concentric contraction?

Answer 6

Concentric contraction occurs when a muscle shortens during action.

Question 7

What is eccentric contraction?

Answer 7

Eccentric contraction occurs when a muscle lengthens under tension.

Question 8

What is isometric contraction?

Answer 8

Isometric contraction occurs when a muscle tenses but does not move.