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strength · bodyweight

Towel Isometric Curl

Loop a towel under your foot and pull hard — biceps burn with no weight.

3 × 30–45 sec 8 minrest 60s

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Log your sets with a rest timer and one-tap save.

Equipment
bodyweight
Rest
60s between sets
Primary muscles
biceps
Also works
forearms

How to do it

  1. Loop a towel under one foot, hold both ends in one hand.
  2. Curl the arm hard while pressing the foot down.
  3. Hold peak tension for the prescribed time.
  4. Switch sides.

Form cues

  • Brace core
  • Full range of motion
  • Slow, controlled tempo

Common mistakes

  • Rushing reps
  • Losing tension at the top

Progressions

  • Master form → add reps → progress to harder variation

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