Webjul 5, 2024 · 1. What is the minimum age requirement to work out at la fitness? To work out at la fitness, you need to be at least 18 years old. This is the minimum age. Webmust be 16 years of age or older (or at least 13 years of age and accompanied by a parent or legal guardian), sign membership agreement, and pay first and last months’ dues and fees for additional services purchased (if any) plus any initiation fee or down payment,. Webwith our wide range of amenities and highly trained staff, we provide fun and effective workout options to family members of all ages and interests. Webat la fitness, the minimum age to use their gym equipment independently is 16 years old. For those under the age of 16, they can still access the gym facilities but must be.