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Handler
Exercise database

Inchworm Warm-Up

Inchworm Warm-Up is a beginner warm-up exercise that primarily trains the hamstrings and shoulders, with the core and calves assisting. Equipment: bodyweight.

Library data updated BeginnerBodyweight

What this page is: structured data from Handler's own exercise library — the same cues, mistakes, ranges, and modifications the coach uses in the app. It is general exercise information, not an individual technique assessment or medical advice. Stop any movement that causes pain and seek qualified coaching or clinical care for injuries.

Demonstration loop from Handler's exercise library. Only the still frame loads until you press play.

Technique

Form cues for the inchworm warm-up

  1. 01

    Start smooth and gradually build range of motion.

  2. 02

    Keep your breathing steady while you raise your temperature.

  3. 03

    Move with control rather than chasing speed.

  4. 04

    Walk hands out to plank and take small steps forward with feet.

Troubleshooting

Common mistakes

  • Starting too fast.

  • Using a range that feels forced.

  • Holding your breath.

Programming defaults

Sets, seconds, and rest by goal

These are the starting ranges Handler's library assigns to the inchworm warm-up for each training goal. They are defaults the coach adjusts from your logged sets, not a prescription for any individual.

GoalSets × secondsRest between sets
Strength1 × 30–45 s0 s
Hypertrophy1 × 30–45 s0 s
Fat loss1 × 30–60 s0 s
General fitness1 × 30–45 s0 s

Between sets

  • Keep moving into the next drill without rushing.
  • Use the next block to build heat gradually.

Working around discomfort

Modifications by body area

How Handler adjusts the inchworm warm-up when a lifter reports a sensitive area. These are training modifications, not treatment. Pain that persists or worsens needs clinical assessment.

Wrist
Use a neutral wrist position or reduce loading until the wrist stays quiet.
Shoulder
Use a pain-free range and keep the upper arm path controlled.
Lower back
Reduce load, brace before each rep, and stop if you cannot keep a neutral spine.

Progression chain

Easier and harder variations

Progress to

This is the most demanding step in its chain.

Questions about this exercise

What muscles does the inchworm warm-up work?
The inchworm warm-up primarily works the hamstrings and shoulders. The core and calves work as secondary or stabilising muscles. In Handler's library it is classified as a warm-up movement.
What equipment do you need for the inchworm warm-up?
None. The inchworm warm-up is a bodyweight exercise, which is why it appears in Handler's anywhere setups.
How many sets and seconds of the inchworm warm-up should I do?
Handler's default for a strength focus is 1 × 30–45 s with about 0 s rest, and for a muscle-building focus 1 × 30–45 s with about 0 s rest. These are the library's starting ranges, not an individual prescription; the coach adjusts them from what you log.
Is the inchworm warm-up suitable for beginners?
Yes. It is tagged beginner in Handler's library.

More hamstring exercises

Invited TestFlight beta · iPhone-first

Let the coach program the inchworm warm-up for you.

Handler is our product. In the invited iPhone beta, the coach places exercises like this one into your plan, sets the starting ranges shown above, and adjusts them from the sets you log. Test build, not a public download.

Request beta access