مقایسهٔ روش‌ها

	نرخ توسعه نیرو	مشخصه نیروی-سرعت (Force-Velocity Profile)
حوزه	علوم ورزشی	علوم ورزشی
خانواده	Hypothesis test	Hypothesis test
سال پیدایش	2002	2007
پدیدآور	Peter Aagaard	Biomechanics Research Group
نوع	isometric force measurement	mechanical profiling
منبع بنیادین	Aagaard, P., Simonsen, E. B., Andersen, J. L., Magnusson, P., & Dyhre-Poulsen, P. (2002). Increased rate of force development and neural drive of human skeletal muscle following resistance training. Journal of Applied Physiology, 93(3), 1318-1326.	Bampouras, T. M., Comyns, T. M., Daly, D. J., & Deighan, M. A. (2007). Comparison of the Wingate test and an isokinetic anaerobic test in recreationally active children. British Journal of Sports Medicine, 41(12), 822-825.
نام‌های دیگر	RFD, explosive strength, force development rate, strength impulse	FVP, force-velocity curve, power profile, strength-speed balance
مرتبط	5	5
خلاصه	Rate of force development (RFD) is the speed at which force is produced during the initial phase of muscle contraction, typically expressed as the slope of the force-time curve in the first 50, 100, or 200 milliseconds of isometric contraction. Introduced comprehensively by Aagaard and colleagues (2002), RFD is a measure of explosive strength capacity and neural drive efficiency. Unlike maximal voluntary strength (which captures peak force), RFD captures how quickly an athlete can generate that force—a critical quality in sports requiring rapid, explosive movements (sprinting starts, jumping, tackling). RFD improves dramatically with strength training, reflecting increased motor unit recruitment rate and firing frequency.	The force-velocity profile characterizes an individual's mechanical properties across the force-velocity spectrum, revealing whether strength advantage lies in maximal force production or high-velocity power output. Formalized by Samozino and colleagues (2012), the FVP is derived from multiple load-velocity measurements (typically sprint starts, jumps, or push-off movements at various resistances) and mathematically modeled as a linear inverse relationship between force and velocity, anchored by maximal power. Athletes differ markedly in their FVP: some excel at moving heavy loads slowly (force-dominant), while others excel at moving light loads fast (velocity-dominant). Profiling identifies these phenotypes and informs targeted training interventions.