What are the three general types of muscle contractions discussed?

• Isotonic, Isometric, Isokinetic

• Isothermal, Isobaric, Isochoric

• Isotonic, Isobaric, Isokinetic

• Isometric, Isobaric, Isochoric

What characterizes a concentric isotonic contraction?

• Muscle shortens under load

• Muscle lengthens under load

• Muscle length remains constant

• Muscle contracts without load

During a bicep curl, when does eccentric contraction occur?

• While lifting the weight

• While lowering the weight

• While preparing to lift

• While holding the weight steady

What does eccentric isotonic contraction involve?

• Constant muscle length

• Muscle shortening under load

• Muscle lengthening under load

• Muscle shortening without load

Which exercise is an example of isometric muscle contraction?

• Running

• Swimming

• Cycling

• Plank

What is unique about isometric muscle contractions?

• Muscle lengthens without load

• Muscle length remains constant during contraction

• Muscle length changes under load

• Muscle contracts with varying speed

In which contraction type does the muscle not change its length?

• Isometric

• Isokinetic

• Isotonic

• All of the above

What distinguishes isokinetic contractions from isotonic contractions?

• Variable resistance

• Changing muscle length

• Constant muscle length

• Constant speed of movement

Which activity utilizes isokinetic muscle contractions?

• Breaststroke swimming

• Jogging

• Weight lifting

• Yoga

What is required to produce an isokinetic contraction?

• Variable resistance bands

• No equipment

• Standard gym equipment

• Isokinetic dynamometer system