Final answer:
Most bodyweight training exercises are considered isotonic contractions, which involve both concentric and eccentric movements. All options are correct
Step-by-step explanation:
In bodyweight training exercises, most movements are classified as isotonic contractions. Isotonic contractions involve a load being moved as the length of the muscle changes. There are two types of isotonic contractions: concentric and eccentric. In a concentric contraction, the muscle shortens to move a load, while in an eccentric contraction, the muscle lengthens as the load is lowered in a controlled manner.
All options are correct