Comment by zhoujing204

> Previous research indicates improvements of 2–4% in running economy (RE), which translates into an approximate 1–2% improvement in running performance when running in these shoes.

- https://www.mdpi.com/2813-0413/5/1/2

- https://pubmed.ncbi.nlm.nih.gov/29143929/

- https://sportrxiv.org/index.php/server/preprint/view/297