Respuesta :
Answer:C
Explanation:C. because necks circling to the rear hurts and back bends are also hard because you're not supposed to so them.
The basic principles of biomechanics provides a guideline to sport exercise and routine movement with the sole aim of minimizing risk of injury. Hence, set of risky exercises which violates these principles are ; Deep knee bends, Back bends, Neck circling to the rear.
- The set of exercises listed above involves joint movement beyond the allowable limit.
- Back bends are extremely risky due to the damage it could cause to the spine which contains organs related to brain function and movement.
Hence, Deep knee bends, Back bends, Neck circling to the rear violates the basic principles of biomechanics.
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