Modern **running shoes** can measurably improve speed by enhancing running economy—the energy cost to run at a given pace—through lighter weight, advanced foams, and stabilizing plates. Studies on “super shoes” show about **2–4% better running economy**, translating into faster race times over long distances. Shoe design affects stride length, ground-contact time, and how efficiently your muscles and tendons store and return energy.
Even small percentage gains matter: over a marathon, minutes can be saved with the right footwear. Understanding how shoe features work helps you assess whether a well-reviewed, 4‑star shoe is likely to improve your personal performance rather than relying on ratings alone.
Decide based on your criteria.
Additional sources and references