Static vs. dynamic stretching jump experiment

Students use their own data to test whether static or dynamic stretching works better before an explosive effort. They measure their standing long jump after each type of stretching and draw conclusions to design better warm-ups.

How to play

1. Pose the question and have each trio write a hypothesis; mark takeoff lines with chalk and lay measuring tapes on the ground (3 min).
2. Baseline: after 3 minutes of easy jogging, each student does two standing long jumps; record the best (5 min).
3. Condition A: 4 minutes of static leg stretches, 30 seconds per muscle, then two jumps right away (6 min).
4. After 3 minutes of easy jogging, condition B: 4 minutes of dynamic stretches such as leg swings, lunges and high knees, then two jumps (6 min).
5. Each trio calculates the difference between each condition and the baseline and compares it with their hypothesis (3 min).
6. Share-out: the class pools all trios' data and decides which type of stretching to use before explosive efforts (2 min).

Rules

• Measure from the line to the back of the closest heel.
• Every jump is a max effort in all conditions.
• Static stretches should never hurt.
• Land with bent knees and without putting hands down behind you.

Variations

Adaptations

• Limited mobility: measure a seated medicine ball throw as the explosive test.
• Autism: provide a ready-made data table and visual step order.
• Knee discomfort: jump onto a mat or serve as the trio's measurer.

Learning goals

• Form and test a hypothesis about the effect of stretching.
• Measure standing long jump accurately.
• Apply the results to warm-up design.

Equipment for a class of 25

• measuring tape: 8
• chalk: 8
• worksheets: 25
• pens: 8

Teacher tip

Results may vary between students: what matters is pooling class data and discussing it. Keep timing identical in every condition for a fair comparison.

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