Diagonal

She felt a sharp pain in her diagonal abdominal muscle while doing sit-ups.

The yoga instructor demonstrated a pose that targeted the diagonal muscles in the abdomen.

The hiker followed a diagonal trail that led them up the mountain.

The wind blew the tree branches in a diagonal direction.

The knight parried the opponent's attack with a swift diagonal, deflecting the sword away.

The martial arts instructor demonstrated how to use the diagonal muscles in the legs for a powerful kick.