The right starting weight is the one you can lift with repeatable technique while the last few repetitions still require effort. A load that looks impressive but changes the movement on every repetition is a poor baseline. This guide gives healthy adults a practical way to choose an initial resistance, record it and progress without turning every workout into a maximum test.
Start with the movement, then add resistance
Choose a version of each exercise that fits your current ability: a chair squat before a loaded squat, a wall or bench push-up before a floor push-up, or a light dumbbell row before a heavier version. Rehearse the movement at an easy effort. If you cannot keep the range and tempo reasonably consistent, simplify the exercise or reduce the load.
For the first working set, choose a weight you expect to lift for about 8–12 controlled repetitions while leaving a few repetitions in reserve. Stop if technique noticeably changes. The exact number is a starting tool, not a universal prescription: goals, exercise type and training experience can change the useful range. Record the weight, repetitions and how difficult the set felt.
A simple first-session example
- Warm up with a few easy repetitions of the exercise.
- Pick a conservative weight and perform a controlled set of about 8–12 repetitions.
- If you could have completed many more with unchanged technique, try a modest increase on the next set or session.
- If you cannot complete the planned repetitions with control, reduce the load or choose an easier variation.
- Keep a short log so that your next session begins from evidence, not memory.
For example, if a dumbbell row with 8 kg allows 10 steady repetitions and perhaps two more, note that as a workable baseline. If 8 kg makes you twist or jerk the weight by repetition six, lower the load. This example illustrates a decision process; it is not a weight recommendation for other people.
What does current research say about intensity?
The American College of Sports Medicine’s 2026 update emphasizes consistent training of major muscle groups at least twice weekly for healthy adults, with the details adjusted to the goal. Strength, muscle growth and power are different outcomes, so one load does not serve every purpose. You do not need a complex progression model to begin.
Research describes several ways to monitor effort, including percentages of a one-repetition maximum and repetitions in reserve. The latter is a rough estimate of how many more sound repetitions you could perform. Beginners may estimate it imperfectly. Use it alongside technique and a written log, not as a precise measurement.
When should you increase the weight?
Repeat the same exercise over several sessions. When you can complete your planned repetitions with stable technique and the sets feel easier, increase resistance in a small available step, then reassess. If equipment jumps are large, you can first add a repetition or choose a slightly harder variation. Avoid increasing load, sets and exercise difficulty all at once.
Progress will not be linear every week. Sleep, other activity and recovery affect what you can do on a given day. A lighter session can be appropriate when performance or technique drops. The aim is sustained practice and measurable improvement over time.
Mistakes that make a baseline less useful
- Testing a maximum immediately: a beginner can choose a workable starting load without a one-repetition maximum test.
- Comparing weights across people: limb lengths, experience and exercise variations change what a number means.
- Counting compromised repetitions: if the movement changes markedly, the log no longer measures the same task.
- Changing every exercise each week: keep a few core movements consistent long enough to see a trend.
Where the book fits
This article covers one decision in a broader training process. My Advanced Concepts of Strength & Conditioning discusses fitness assessment, movement, programming, strength and power in more depth. It was published earlier, so this article uses current guidance for its practical recommendations. Tennis players looking to connect gym work to court demands can also read my tennis strength training framework.
Scope: This guide is educational and intended for generally healthy adults. If you have an injury, symptoms during exercise or a medical condition that affects training, seek individualized guidance from a qualified professional.