When thinking of web design for a fitness website, think first about the usability of the website. Content matters much more when it is easily reached.
Another point is the website's appeal. Think of the logo, motto, bright and motivating pictures. If you create a portfolio website, choose your best photos to present yourself to the community. Add the photos of your happy successful clients.
With high-quality images, engaging texts, contact forms, a fitness website template will be an awesome push for your business.