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Not All Repetitions Are Equal
Two people can do the same exercise, with the same weight, for the same number of reps, and train two different things.
The exercise is only part of the story. How you perform each rep decides what it trains.
Three things shape it.
Load. How heavy the weight is compared with what you can lift.
Intent. How fast you try to move it. Trying to move the weight as fast as you can, with control, on every rep has been shown to produce bigger strength gains than deliberately lifting slowly.
Fatigue. How far into the set you go. As a set goes on, the bar slows down, and how much it slows by the end changes what that set trains. Smaller slow-downs suit speed and jumping. Bigger ones lean towards muscle size. Strength responds well across the range.
Train With Intent
If how fast you move matters, it's worth measuring.
Bar speed gives us an objective, rep-by-rep read on how hard a set is and how fresh you are. The heavier the weight is for you, the slower the bar moves. As you tire within a set, it slows too.
That turns "that felt quick" into something we can both see.
In our sessions, we use an Output Sports sensor to measure it, and to drive intent in things like bar velocity, ground contact time, and throws and slams. It does three jobs:
- Quantify. It measures how fast each rep moves, so effort becomes a number.
- Monitor. It shows when a set starts to slow, and how your speed compares from week to week.
- Guide. It guides our training decisions.
Seeing the number changes how you lift, too. When people see their speed straight after each rep, they tend to push harder and compete more, and a review of the research found it can add up to better results over time.
Every rep has a job. Know what it is, then move with intent.
Key Takeaways
- How you perform a rep decides what it trains.
- Load, intent and fatigue all shape what a set does.
- Try to move every rep fast, with control.
- Bar speed turns effort into something we can measure.
Performance Action
In your next strength session, pick one main lift and keep the weight you'd normally use. On every rep, try to move it as fast as you can while keeping control and your full range. Notice the rep where the set starts to slow, and write it down.
This is general guidance. If a lift doesn't feel right, stop and talk to one of the coaches.
Next Week
We'll move on to recovery, and why you can only train as hard as you recover.
Founding 12 Partner: Output Sports
Output Sports makes a small wireless sensor and app for velocity-based training. The sensor attaches to a barbell, kettlebell, trap bar or wrist, and the app shows your numbers as you lift.
Output is also giving members merch packs.
