• Beginner Endurance
Isometric Bicep Hold (90°)
Why This Matters for Boxing
Conditions your arm to maintain the 90-degree hook angle under fatigue. When your bicep gives out in late rounds, your hooks become arm punches with no structure. This hold builds the isometric endurance to keep hooks compact and powerful.
How To Do It
- 1Hold a dumbbell in each hand at 90 degrees.
- 2Keep your elbows at your sides, forearms parallel to the ground.
- 3Hold the position for 30 seconds without moving.
- 4Focus on keeping tension in the bicep.
- 5Don't let your arms drop — fight the burn.
Sets
3
Reps
30s hold
Rest
30s
Pro Tips
- Start with 10-15 lb dumbbells.
- Squeeze the dumbbells hard — grip strength matters too.
- Progress by adding 5 seconds per session.