TikTok drives Sword Yoga surge in NYC as study warns of unreliable health advice

A new fitness trend called Sword Yoga, which blends yoga, tai‑chi and kung‑fu movements with swords, has quickly taken over several New York City parks. Pioneered in the United States by Amber Pfister, the practice is promoted as a playful, empowering workout that lets participants feel “like the main character of their own life.” Parks such as Central Park, the High Line and Bryant Park now host regular Sword‑Yoga classes, drawing attention on social media.

At the same time, researchers at the University of Montreal evaluated 106 TikTok videos that claim to show anterior‑cruciate‑ligament (ACL) rehabilitation exercises. Using the Modified DISCERN tool, they found that videos posted by health professionals scored higher for reliability, yet they attracted fewer views than videos from ordinary users. The study warns that TikTok’s algorithm favors short, sensational content, leading many adolescents to rely on potentially incomplete or misleading advice for injury recovery. The authors call for more accurate, easily digestible health content on the platform.

Both pieces illustrate how TikTok is shaping wellness practices—from novel workout trends in public spaces to the dissemination of medical advice—while raising questions about the platform’s influence on public health.