Biceps
Forearms
Watch Tutorial
https://www.youtube.com/shorts/yxbHPfBODjk
https://www.youtube.com/shorts/OKYZfrWIdwk
https://www.youtube.com/shorts/XjxR5LvA46I
https://www.youtube.com/shorts/NEN3CqTXfoI
https://www.youtube.com/shorts/dSjJ06XeqcI
https://www.youtube.com/shorts/_Hn-klB1TKY
https://www.youtube.com/shorts/kJZ4Am4BsmY
https://www.youtube.com/shorts/l0yTf5khtRA
Sit machine preacher curl, adjust seat.
Rest back of upper arms on pad.
Grip handles underhand.
Exhale, curl handles up.
Keep upper arms on pad.
Squeeze biceps.
Inhale, lower slowly.
Repeat.