01/04/2022
⚡️ Need for speed 💨
You may have seen athletes or coaches adding resistance when sprinting, either by a band around the hips, a parachute or a weighted sled. 🪂
This is known as underspeed training and is an effective method used to improve sprint speed by modifying the load to adjust max velocity by about 10%.
The benefits of resisted sprints include recruitment of more muscle fibers, increased load in hip extensor muscles and increased neural activation. 🧠🦾
But when the load is too much, it changes the mechanics of the sprint, such as the stride length, stride rate and ground contact time. So use enough load to induce a training stimulus but not so much that it changes your sprint technique - the resistance shouldn’t slow you down by more than 10%.
Heavy loading CAN also improve sprint speed, such as heavy sled pushes, but the adaptations are different than those for sprinting and the benefits of going heavy include improved force production, muscle size, time to fatigue, stride length and horizontal force production in the acceleration phase.
We can also use overspeed, or assisted, training to improve sprint speed such as sprinting downhill or with the assistance of a band from the front.
This can be effective as the athlete is being pulled or towed so they are forced to work on faster turnover and recruitment of high threshold motor units. Again, stick to around 10% less than body weight so that the mechanics of sprinting are not changed too much, such as overstriding.
What sports is resisted/assisted sprinting good for? Every track and field sport has a need for speed. Footballers, basketballers, sprinters and even endurance athletes have a need to get faster in some capacity to maximise their performance so resisted/assisted sprint training is a useful training method that can be used by any and every athlete to enhance performance. 💯
If your goal is to get faster, then there’s really no reason not to be adding these to your programme!
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