Antagonistic Muscle Pairs

Students define the components of an antagonistic muscle pair and the types of muscle contraction (isometric, isotonic concentric, isotonic eccentric).

Students link antagonistic pairs to movement actions at the elbow, knee, ankle, shoulder, and hip.

Students analyse sporting movements to identify the agonist muscle and its contraction type.

Have Worksheet 7 – Antagonistic Pairs ready before teaching, since Activities 1 and 4 in this deck direct students to that separate worksheet, which is not included in this file.

Use the worked joint-by-joint slides (e.g. knee flexion, elbow extension) as a model before Activity 3, which asks students to analyse contraction type and joint action for sporting contexts independently.

Point out the concentric/eccentric contrast using the given example (abdominals shortening while rising vs. lengthening while lowering against gravity) before introducing eccentric contraction at other joints.

Antagonistic pair identification — students name the agonist and antagonist muscle for a given joint action across the elbow, knee, ankle, hip, and shoulder.

Contraction type classification — students classify a muscle contraction as isometric, isotonic concentric, or isotonic eccentric based on whether and how the muscle changes length.

Applied movement analysis — students analyse sporting movements (e.g. a hurdles lead leg) to identify contraction type, agonist, antagonist, and joint action.