1. Mobile Athletic Training Business: Athletic trainers can provide onsite training services to clients in their own homes or other convenient locations. Services could include creating individualized fitness plans, helping athletes improve their performance, and providing proper fitness instruction.

2. Sports Injury Clinic: Athletic trainers can open up their own sports injury clinic, offering comprehensive treatment and rehabilitation services. Services could include physical therapy, nutrition counseling, injury rehabilitation, and more.

3. Group Fitness Classes: Athletic trainers can open up a group fitness studio and offer classes such as boot camp, spin, Pilates, and yoga.

4. Sport Performance Coaching: Athletic trainers can offer sport specific performance coaching for athletes looking to improve their performance. Coaching services could include speed and agility training, strength and conditioning coaching, skill development, and more.

5. Assisting at Athletic Events: Athletic trainers can provide assistance at athletic events such as marathons and triathlons. They could provide medical assistance, first-aid, and injury prevention tips and advice.