Movement Pulse · Stiffness
Research on stiffness and mobility, and the gentle movement approaches that translate the science into daily ease.
Half an hour of stretching a day gave tight hamstrings no clear edge over a few minutes
A six week trial in Thailand set 210 minutes of stretching a week against nine. A practitioner's read on why the range changed while the muscle did not, and a short practice that asks for less.
Oct 4, 2026
The same muscle, the same knee angle, a stiffness reading that changed when the hip moved
A randomized crossover study in Scientific Reports measured quadriceps stiffness in four body positions. Keeping the knee at the same angle, changing the hip position changed the measured stiffness of a muscle that does not cross the hip.
Sep 19, 2026
Stiff most mornings? What the largest review of tai chi and qigong actually found
A new BJSM umbrella review grades the evidence for tai chi, qigong and related practices across 1,744 trials. Plus a five minute weight shift experiment.
Aug 20, 2026
The back that feels stiff is the back that moves in fewer positions
A 2025 daily life study of 312 people found chronic back pain patients adopt significantly fewer distinct lumbar postures across the day than pain free controls.
Jul 17, 2026
The stiffness you feel is not the stiffness we can measure
A 2025 knee osteoarthritis study measured muscle stiffness with shear wave elastography and found it did not correlate with the tightness patients reported feeling.
Jul 17, 2026Ready to start moving better?
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