Ummjake, i know you haven't seen it yourself & just trying to confirm.
This is a not easy for me to believe as I am regular to Aspire Gym as well as the Jogging Track & haven't heard anything similar.
Please also note that there are several Surveillance Cameras all around the Aspire & moreover Himaya Security are Patrolling the area round the clock. Any such yelling or misbehaviour is difficult to hide.
Still, I leave space for exceptional case.