Translation of "Aerobics" in Spanish

Her mother does aerobics once a week.

Su madre hace aeróbic una vez a la semana.

He plays at aerobics just to please his girlfriend.

Él hace aeróbic únicamente para agradar a su novia.

She worked as an aerobics instructor in her twenties.

Ella trabajó de instructora de aeróbicos en sus veintes.