FitFolks' Secret. This name gives the idea that it's about the private fitness journey of the people in the gym. It has a sense of community within the privacy.
At the best gym, there was a woman who wanted to build muscle. In her private sessions, she learned proper lifting techniques. She was dedicated, and in a year, she had transformed her body. She not only got the muscles she wanted but also improved her overall health. Her story inspired many other female members at the gym. The private trainers really focused on her individual goals and helped her achieve them step by step.
Sure. 'Gym Whispers' gives a sense of secrecy. 'Behind the Gym Curtain' is also good as it makes people think of something hidden or private. 'Gym Confidential' is a straightforward and effective name.