Diagnostic Misconceptions - Contractions
Physical Education: AQA GCSE, topic 1.1.11
Types of Contractions
Isotonic
- Isotonic contractions involve the performer changing their body position. They are either concentric or eccentric.
- Eccentric contractions occur during the lowering phase of a movement, e.g. squatting before taking-off whilst jumping to make a block in volleyball.
Isometric
- Isometric contractions exist where the performer is in a fixed position. The muscles are under tension but no movement is taking place.
Test yourself on Diagnostic Misconceptions - Contractions
Which of the following is not an example of an isotonic contraction?
Which of the following is not an isometric contraction?
Which of these is an example of an eccentric contraction?
Which of the following is an example of a concentric contraction involving the quadriceps?