When should I use the The 1-2-1 (Jab-Cross-Jab)?

Use to maintain distance control while still committing power. The trailing jab keeps you at range and prevents the opponent from countering the cross.

What muscles does the The 1-2-1 (Jab-Cross-Jab) work?

The The 1-2-1 (Jab-Cross-Jab) primarily targets: front deltoids, triceps, obliques, gluteal. Proper form ensures these muscle groups fire for maximum power and speed.