Which two modalities are included in the muscular strength 'Type' category?

• A. Isotonic and Isokinetic
• B. Plyometric and Isometric
• C. Circuit and Static
• D. Eccentric and Concentric

Answer: (A)

Type in muscular strength contexts refers to how resistance is applied during movement. Isotonic resistance stays constant as the limb moves, so you work through concentric and eccentric phases under a steady external load. Isokinetic resistance is delivered at a controlled speed across the entire range of motion, with the equipment adjusting the resistance to keep that speed constant. These two describe the ways load is applied while the muscle length changes, which is why they belong in the Type category. The other options describe contraction forms (like concentric, eccentric, or static/isometric holds) or training methods (plyometric, circuit), rather than the modality of applying resistance during movement.