

Written by Mike Tuchscherer

So this article is about why speed work doesn’t work — at least not for the reasons you think it does.

Speed work defined

For now, let’s define speed work as anything under a 7 RPE. If you complete a set and you could have done 5 or more reps, it counts as speed work. If you’re doing doubles or triples with less than 75%, it probably counts. If you’re doing singles with less than 85%, it probably counts. If this is just a warm-up to your heavier work, then it probably doesn’t count as speed work.

Reason #1: Force output during speed work is crap

If you attempt a squat in a meet and grind it for 15 or 20 seconds, but complete the lift for white lights, yet your competitor completes the same weight in 3 seconds, who wins? Assume both of you move up 5 pounds and miss. The answer is you tie (or win/lose based on bodyweight which is pretty much a tie) because there is NO time component to powerlifting. Despite the name, power (in the physics sense) is not what you care about as a powerlifter. You care about force.

It’s common meathead knowledge that force equals mass times acceleration and many of you can cite Russian manuals that state, in theory, you can maximize force by maximizing the mass on the bar or the acceleration.

I’m here to tell you that doesn’t work in reality.

I’ve tested it. Peak force production is tied to the weight on the bar. Are you trying to maximize force? Add weight. In real life, you won’t be able to accelerate enough to produce force like you can in a max lift. No way around it. Sure, a set done with maximum acceleration will produce more force than one done with an even tempo. But only if the weight on the bar is similar. If you always accelerate maximally, you will produce more force if the weight on the bar is heavier, even though acceleration is less.

For those who want a reason why, here it is. It takes time for your body to ramp up to maximum force (Fmax). In a heavy lift the bar speed is slow enough to get there (or get close). In a light lift, the bar speed is too fast for you to have time to get to Fmax.

Force, the most important quality for a powerlifter, is not practiced with speed work. Doing speed work does not produce maximal force. In theory it should, but in real life it doesn’t. My numbers indicate that even at 75% of 1RM (too heavy to be considered “speed weight” by most), force production is still only 85%. When you consider that increasing the weight to 90% or 95% yields near-maximum levels of force production, it’s easy to see that when it comes to practicing your ability to produce force, you can’t beat heavy weights. And if you’re worried about spending too much time with 90-95% loads, please read my previous article “You are not overtrained”. Don’t be scared.

Reason #2: Technique is not perfected

If you have decent form (i.e. You know what good form is and you can demonstrate it with light weight), then speed work will not help you get better. The weights are typically so light that they involve a different motor pattern than will be used on heavy weight. Besides, it makes far more sense to do technique practice with a weight that challenges your technique (and thus requires you to pay attention and practice) than to do technique practice with something easy.