Time-based sets in training
Time-based sets are a simple way to manage your training when counting tempo schemes starts to get in the way more than it helps. The idea is concrete: don’t count the seconds of each repetition separately. Instead, time the whole set and keep your effort in line with your goal.
Why do time-based sets matter?
In the gym, tempo is easy to explain but hard to actually execute. On paper, the tempo of a repetition might be, for example, 4 1 – 1 0. That means the weight is lowered for 4 seconds, there is a pause of 1 second in the bottom phase, the weight is lifted for 1 second, and there is a pause of 0 seconds in the top phase before the next repetition.
In theory, that is precise. In practice, a question comes up right away: are you training, or are you counting numbers in your head? When a set gets hard, your attention wants to go to technique, breathing and effort. Chasing seconds can ruin all of it.
From a coach’s point of view, it isn’t much better. If you have to keep checking whether the athlete lowered the bar for exactly 4 seconds or paused for 1 second, there is less room for what really matters: control of the movement, positioning and a suitable weight.
This is where time under tension comes in. A muscle doesn’t know whether your training log had a nice tempo scheme written in it. It responds to how long it works, how big the training load is, and how close you get to serious effort at the end of the set.
How do time-based sets work?
The simple truth: the duration of a set determines much of the direction your training takes. You start a timer, begin the set, and stop when the chosen time is up or when your technique starts to break down. The rep count comes naturally within that time.
The original breakdown is worth remembering, because it gives your training a clear framework:
- 10 seconds = maximal strength and power
- 10 20 seconds = functional hypertrophy, mainly from myofibrils
- 20 40 seconds = mixed-type hypertrophy, both functional and sarcoplasmic hypertrophy
- 40 60 seconds = sarcoplasmic hypertrophy
- 60 + seconds = muscular endurance, also known as strength endurance
If you use an intensity of 80% or more and the set lasts about 10 seconds of effort, you are moving toward maximal strength and power. This suits situations where the weight is heavy and the reps are few.
Lighter loads also have their place in developing power. For example, sets of two and three with a weight of 40 70% can help when the goal is to move the weight quickly and explosively.
When a set lasts 10 20 seconds, the emphasis shifts toward functional hypertrophy. When a set lasts 40 60 seconds, the emphasis is more on sarcoplasmic hypertrophy. 20 40 seconds sits between the two and affects both sides.
Time-based sets in practice
Start with one exercise, not an entire program. Pick, for example, the chest press, squat, pull-up, leg press or biceps curl. Set your goal and choose the duration accordingly.
If you want strength, don’t stretch the set out. If you want muscle growth, check whether your usual set lasts as long as you think it does. Many people blast through 8 12 repetitions very quickly and believe they are training sarcoplasmic hypertrophy, but the actual set lasts only 10 20 seconds.
Honestly, this is a surprise for many people. A timer quickly shows whether the set was controlled or simply done fast. That doesn’t mean every repetition has to be slow. It means the duration of the set has to match your goal.
For endurance athletes, the problem can be the other way around. They often find it easier to work for longer, but harder to maintain explosive speed or a heavy enough weight. There, too, time makes it clearer what your training is actually developing.
What should you watch for with time-based sets in training?
The first thing is technique. If the timer still shows time but the movement is falling apart, end the set. A bad repetition doesn’t get any better just because a few more seconds were planned.
The second thing is the weight. The same 40 60 seconds can be either very easy or downright brutal, depending on the training load and the exercise. Don’t choose the weight based on ego alone. Choose it so that your effort stays honest within the chosen time and the last repetitions demand real work.
The third thing is repetition speed. A fast movement can activate fast-twitch muscle fibers, which have high strength and power potential as well as growth potential. At the same time, speed must not come at the expense of control. Explosive doesn’t mean sloppy.
A good solution is to use a stopwatch or your phone’s timer and write both the time and the rep count in your training log. That way, after a few weeks you can see whether the same duration yields more quality repetitions, or whether you can get the same work done with a heavier weight.
FAQ
Are time-based sets suitable for a beginner?
Yes, but a beginner should start with simple exercises and a moderate weight. The goal isn’t to race the timer, but to learn how long a proper set actually lasts.
Do I still need to count repetitions?
You can, but the main metric is set time. The rep count is extra information that helps you judge later whether your form, speed and work capacity are improving.
Does this replace tempo schemes?
Not always. Tempos are useful for learning technique and for controlled training. Set duration is the more practical option when you want to keep your focus on the effort of the whole set.
The article comes from: http://www.criticalbench.com/timed_sets_muscle_building.htm
Translated by Janar Rückenberg
Come and train! ArtGym
