CanFitPro Personal Training Specialist Test 2026 – 400 Free Practice Questions to Pass the Exam

Isometric training is characterized by static muscle contraction without changing length. This means that the muscle stays at a fixed length while being contracted, as opposed to dynamic training where the muscle length changes. Rapidly changing muscle contractions, or isotonic training, is also incorrect as it involves dynamic muscle changes. The "None of the above" option is also incorrect as isometric training is characterized by one specific aspect, static contraction, rather than involving none of the listed characteristics.