AQA GCSE PE Muscle contractions

When a muscle shortens under tension, it is called_______

• isotonic eccentric contraction
• isotonic concentric contraction
• isometric concentric contraction
• isometric eccentric contraction

When a muscle is under tension, it is not possible for it to be lengthening

• True
• False

As the athlete lowers the weights, his biceps undergo-

• isometric concentric contraction
• isotonic eccentric contraction
• isometric contraction

As this athlete jumps into the air, his quadriceps undergo-

• concentric contraction
• eccentric contraction
• isometric contraction

What type of contraction is happening here??

• isostabilize

• isokinetic

• isotonic

• isometric

Movement is enabled by muscle

• contraction
• atrophy
• subduction
• torpor

During the upward phase (pressing) which muscle is undergoing concentric contraction?

• biceps
• triceps
• abdominals
• quads

During the downward phase of the squat, which muscle is undergoing eccentric contraction?

• quads
• hamstrings
• abdominals
• shoulders

The tricep is the (a)   , or the primary mover, of a tricep extension

The bicep is the (a)   of a tricep extension, or the muscle that stabilizes the agonist.