A TikTok trend called the 'model stretch' is gaining global traction for its posture-improving benefits, with physical therapists noting its effectiveness in loosening tight back and shoulder muscles.

a) Start by kneeling down on all fours. Rest your non-working knee on the ground with the shin lifted up and out. Steady. b) Lift up this leg, keeping it bent, and tuck it neatly behind the working ...