"Body stiffness" refers to a feeling where your muscles or joints feel tight and inflexible, making it difficult to move or bend smoothly. Full definition
Like fatigue; I was experiencing some significant joint pain, and body stiffness leading up to my eczema symptoms. (ggenereux.blog)
Also supporting the enhanced handling is an improvement in front body stiffness (versus the previous generation). (greencarcongress.com)
The 2015 Fit benefits from the most extensive use of ultra-high strength steel in the model's history, providing increased body stiffness while reducing platform (underbody and chassis) weight by 57 pounds (26 lbs) versus the outgoing model. (greencarcongress.com)