What practice should personal trainers avoid regardless of the service format they use?

Personal trainers should avoid diagnosing injuries because this task falls outside the scope of their practice and training. Diagnosing injuries requires medical knowledge and expertise that is typically held by healthcare professionals such as physicians, physical therapists, or other licensed healthcare providers. Personal trainers are not equipped to make medical diagnoses and doing so can not only pose risks to clients' health but also expose trainers to legal liabilities.

In contrast, providing personalized exercise programs, conducting fitness assessments, and designing client-specific workouts are all within the realm of a personal trainer’s responsibilities. These practices are essential for creating tailored fitness experiences that address individual clients' needs, goals, and fitness levels.