To determine the movement shown in the image, let's analyze the definitions of each type of exercise:
1. Isometric Exercise: Involves muscle contraction without a change in muscle length or joint movement. Example: Holding a position/static hold.
2. Isotonic Exercise: Involves muscle contraction with movement and a change in muscle length. Example: Lifting weights.
Now, consider the movement terms:
- Ankle Flexion: Decreasing the angle between the foot and the leg, moving the toes upward.
- Ankle Plantar Flexion: Increasing the angle, moving the toes downward, similar to standing on tiptoes.
By combining these definitions, we can analyze the options:
Option | Definition |
---|---|
Isometric Ankle Plantar Flexion | Holding a static position engaging plantar flexor muscles without movement. |
Isometric Ankle Flexion | Holding a static position engaging flexor muscles of the ankle. |
Isotonic Ankle Flexion | Moving the ankle to flex the foot upwards. |
Isotonic Ankle Plantar Flexion | Moving the ankle to extend the foot downwards, as in rising on toes. |
Given the options and definitions, Isotonic Ankle Plantar Flexion is the accurate movement depicted, as it involves movement with plantar flexion, typical in exercises like calf raises.