You could do one of the listed sessions every 2-3 days instead. And on off days, I don’t personally like running for tempo, but you can do BW circuits and mobility work.
If you wanted to, you could also still train the sprints every 3-4 days, but could do a weight session later that day or the day after. The only thing is that you wouldn’t want to go to failure. You’d want to keep the weights and volume manageable. This is what I’m trying out now.
And if you wanted to use squats, they could either be used on one of the ISO days or they could be done in a weight session done after sprinting like I outlined just above. I personally wouldn’t use squats though, and I’ve got two reasons why.
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I feel ISOs are better than traditional lifting. They cause less soreness, generate greater isometric strength (which top speed and SE rely upon), and further increase tendon stiffness.
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I like unilateral lifts more. They allow you to load the legs (individually) more heavily than squats and it’s hard to drain yourself with them.
Also, all work is done in a rotation fashion. So you’d do one set of exercise A, then one of B, then one of C, and then start back at A and repeat the process.
If you could give me more of your numbers (height, weight, times, lifts, jumps, strengths, weaknesses, etc.) and how often you’d like to train, I’d be able to help you out more. Also, if you want squats in, let me know. I don’t like them, but I know you do.