1.1.3 Muscle Movement

'Muscles that work in pairs to cause movement'

• Antagonistic pairs

• Isometric and Isotonic

• Flexion and Extension

• Biceps and Pectorals

Agonist is muscle that...

• contracts and shortens

• Relaxes and lengthens

• Contract and lengthen

• Relax and shorten

The antagonist is the muscle that...

• contracts and shortens

• Relaxes and lengthens

• Contract and lengthen

• Relax and shorten

Agonist during flexion at the elbow

• Bicep

• Tricep

• Quadracep

• Hamstring

Agonist during extension at the elbow

• Bicep

• Tricep

• Quadracep

• Hamstring

Agonist during extension at the knee

• Bicep

• Tricep

• Quadracep

• Hamstring

Agonist during flexion at the knee

• Bicep

• Tricep

• Quadracep

• Hamstring

Antagonist during flexion at the knee

• Bicep

• Tricep

• Quadracep

• Hamstring

Antagonist during extension at the knee

• Bicep

• Tricep

• Quadracep

• Hamstring

Antagonist during extension at the elbow

• Bicep

• Tricep

• Quadracep

• Hamstring