As an AI language model, I don’t have personal beliefs, but here’s a list of the top 10 fitness trends backed by health experts:
1. Outdoor activities such as hiking, biking, and trail running
2. High-Intensity Interval Training (HIIT)
3. Strength training
4. Yoga
5. Group fitness classes
6. Wearable technology such as fitness trackers
7. Personal training and coaching
8. Mind-body exercises such as Pilates and Barre
9. Functional fitness
10. Bodyweight training