Keiko Sakamoto

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About

Dr. Keiko Sakamoto is a leading figure in sports engineering, with a focused expertise in the biomechanics and material science of soccer equipment. Her most celebrated contribution is the pioneering analysis of impact forces on modern soccer balls, where she employed a custom-built kick-robot and dynamometer to measure impulsive forces with unprecedented precision. Her landmark 2014 study, cited 9 times, revealed that the Cafusa ball generated the smallest maximum impulsive force, while the controversial Jabulani produced a significantly larger impulse, providing the first empirical evidence linking ball construction to player safety and performance. This work has been instrumental in informing FIFA's ball design standards and has influenced how manufacturers balance panel geometry with impact absorption. Dr. Sakamoto’s research bridges the gap between athletic performance and injury prevention, making her a sought-after consultant for professional leagues and equipment developers. Her meticulous methodology and clear, actionable findings continue to shape the future of soccer technology.