This fitness card can be used unlimited times in the first quarter.

This gymn card can be used indefinitely in the first quarter.

Or there is no restriction on the access frequency. . .

Or there are no restrictions on access. . .

Fitness instructor-coach/coach will do. Trainers prefer training and coaches prefer instruction.

Aerobic exercise-aerobic exercise/aerobic exercise training/aerobic exercise

Get a fitness card:

Apply for a fitness membership card-apply for a fitness club membership card

Register as a member of the health club.