Yes using a treadmill for speed and agility training can increase your overall speed. Here's a suggestion; how about sprint tasks that develop speed and acceleration qualities - which ultimately train fast-twitch muscle fibres, neural circuits, increase overall explosiveness and so much more. Cissik JM. Means and methods of speed training, part II. Strength Cond J. 2005;27(1):18-25.
At the beginning of your speed training season, acceleration work is used. Mackala, K., Fostiak, M., Schweyen, B., Osik, T. & Coch, M. 2019, ‘Acute effects of a speed training program on sprinting step kinematics and performance', International Journal of Environmental Research and Public Health, vol.
Three acceleration sections (the initial section, from the first step to the first breakpoint; the middle section, from the first breakpoint to the second breakpoint; the final section, from the second breakpoint to the step when the running speed became maximal), having different acceleration strategies, are determined according to our two detected breakpoints.
The moments that matter most often require athletes to hit, or very nearly hit, absolute maximal sprint speed.3For example, in the sport I work in—rugby league—a quarter of all sprints are more than 20 meters and half are entirely linear in nature.4Ignoring the importance of straight line sprinting over longer distances can be costly, both in opportunities missed and injuries sustained.
A BMW supercharger helps the car's engine to increase speed and make engine more powerful by creating lot of energy. A speed ladder has many types of drills that develop fast twitch muscles. To strength train for maximal speed we must use exercises and resistance that allow the weight to be moved as fast as possible and exercises that recruit the most number of muscle fibers.
This will lead to increased speed because you will be able to generate a great enough force impulse to overcome gravity and bound off the ground more rapidly. The ability for the sprinter to produce force at the right time, in the right plane, and in the right direction, is highly dependent on balance.