Final answer:
Before attempting single-foot plyometric exercises, bilateral exercises should be mastered to build a foundation of strength and coordination. The joint type that permits just uniaxial movement is the synovial joint.
Step-by-step explanation:
Before progressing to single-foot plyometric exercises, it is advisable to start with bilateral exercises. Bilateral exercises involve using both feet simultaneously and help in building a foundation of strength, balance, and coordination necessary for more advanced plyometric movements which include single-foot (unilateral) exercises. Once proficiency and strength have been developed through bilateral exercises, individuals can move on to more challenging plyometric activities, which may ultimately include single-foot variations.
To answer the specific question of which type of joint allows for only uniaxial movement, the correct choice is b. synovial joint. synovial joints, such as the elbow and knee, allow movement in one plane, such as bending and straightening, which characterizes uniaxial movement. In comparison, ball-and-socket joints allow for multi-axial movement.