Load-Velocity Profile for the Overhead Press: Zones and 1RM Estimation

A lifter tests a strict overhead press 1RM at 70kg on a Tuesday, feels great, and writes their whole block around it. Three weeks later, 80% of that number — 56kg — is grinding for three reps instead of moving the way it should for a top set of five. Nothing about their strength changed in three weeks. What changed is that the overhead press, more than almost any other main lift, is at the mercy of shoulder joint stiffness, thoracic spine position that morning, and how much upper-body volume happened two days earlier. A back squat mostly doesn't care if your shoulders feel tight. An overhead press absolutely does.

Percentage-based programming assumes a fixed 1RM holds steady for weeks at a time. For the overhead press specifically, that assumption breaks down faster than it does for the squat, bench, or deadlift, because the lift's stability demands are so sensitive to daily readiness. A load-velocity profile fixes this by measuring what the bar is actually doing today, not what a test three weeks ago says it should do. Worth saying upfront: the research base specific to the overhead press is thinner than for the squat or bench — most of what's published on load-velocity relationships comes from those two lifts, plus the deadlift. This guide works from the overhead-press-specific data that does exist, extends established VBT principles where the gap needs bridging, and flags exactly where that extension happens.

Balsalobre-Fernández, García-Ramos, and Jiménez-Reyes (2018) built load-velocity profiles for the military press in a mixed group of resistance-trained men and women and reported two things that matter for anyone setting up their own profile. First, the relationship was strongly linear within individuals, which is the same pattern seen in bench press and squat research — a single testing session is enough to map the curve. Second, minimum velocity threshold (the bar speed at true 1RM) differed enough between men and women, and between more and less experienced lifters, that a generalized formula pulled from someone else's data produced meaningfully different load prescriptions than an individualized profile. That second finding is the whole argument for doing this yourself rather than borrowing numbers off a chart.

Where the Sticking Point Falls

On a bench press, the sticking point usually sits a few centimeters off the chest. On a strict overhead press, it tends to fall in the middle third of the range — right around the point where the bar has cleared the face but the elbows haven't fully extended, which is also where shoulder torque production is at its weakest mechanical disadvantage. That mid-range sticking point is part of why overhead press bar speeds at a given %1RM typically run slower than squat speeds at the same relative load, even though the absolute weight is much lighter.

Treat these as starting ranges, not a target to hit. A lifter with long arms and a narrow grip will sit toward the slower end of every band; a shorter-armed lifter pressing with a wider grip will often run faster at the same relative load. This is exactly the individual variability the 2018 profiling study flagged.

This protocol assumes a strict, standing overhead press — no push press, no leg drive, no forward lean past a small heel rise to initiate the pull. Mixing in push-press reps corrupts the data because a leg drive contribution changes the velocity-load relationship entirely; it's a different lift, not a faster version of the same one.

1. Warm up thoroughly. Shoulders need more general warm-up than hips before loaded overhead work — five to eight minutes of band pull-aparts, scapular work, and light overhead reps before touching a bar.
2. Attach the sensor to the bar sleeve, not the center. Overhead press bar path arcs backward over the head more than a bench press moves forward over the chest. A center-mounted sensor picks up more of that arc as noise; sleeve placement tracks the vertical component more cleanly.
3. Run the loading ladder. Three reps at 40%, three at 50%, two at 60%, two at 70%, one at 80%, one at 90% of estimated 1RM. Rest 2-3 minutes between loads.
4. Reset fully between reps. No touch-and-go bouncing the bar off the shoulders between reps — a paused, dead-stop start at the shoulder for every rep, which also matches how most lifters actually test a true 1RM.
5. Watch for leg drive at the top of the ladder. Film the 80% and 90% sets from the side. Any visible knee bend or heel lift beyond the setup position invalidates that rep for profiling purposes — rerun it after a longer rest instead of including bad data.
6. Stop before 1RM if velocity has already dropped below your expected MVT range. If the 90% rep comes in under 0.16 m/s, the lifter is probably not fresh enough for an accurate max attempt that session — better to bank the submax data and test the actual 1RM another day.

Six loads is enough for a workable linear fit. Adding more loads improves precision only marginally past this point and costs recovery you'll need for the heavier end of the ladder.

The math is the same linear regression used for any lift: MCV = a - b × (%1RM), where a is the theoretical velocity at zero load and b is the slope of the decline. Extrapolate the line down to your MVT (roughly 0.18-0.22 m/s for the overhead press, though test your own — see the profiling study above) and the load at that intersection is your estimated 1RM.

Here's a worked example using three submaximal loads from an actual session:

Three loads clustering within 0.5kg of each other is a good sign the profile is reliable that day. If the three estimates spread by 4-5kg or more, something in the setup probably changed between sets — grip width, bar position on the traps versus the front delts, or fatigue creeping into technique. One caveat worth stating plainly: overhead press profiling doesn't have the large validation studies behind it that squat and bench 1RM estimation do, so treat a velocity-based 1RM here as a strong planning estimate, good to roughly ±2-3kg, rather than a number you'd report to a meet director.

Once the profile exists, the practical use is picking loads by target velocity instead of a fixed percentage that assumes every Tuesday feels the same. A simple three-day split built around velocity zones might look like this:

Sánchez-Medina and González-Badillo (2011) established that velocity loss within a set predicts neuromuscular fatigue accumulation reliably — their data came from squat and bench press, not the overhead press, so the exact percentage cutoffs from that paper don't transfer directly. In practice, most overhead press lifters can absorb a bit more velocity loss before technical breakdown than they can on a heavy squat, simply because there's less structural loading to compound. That said, shoulder impingement risk climbs once form starts compensating for fatigue, so a 15-20% velocity loss cutoff per set is a more conservative and sensible starting point for the press than the 20-25% commonly used on lower-body lifts — tighten it further for anyone with a shoulder history.

A daily readiness check works the same way it does for other lifts: press a fixed submaximal load (say, 60% of tested 1RM) for one rep before the working sets. If the velocity comes in within about 5% of your rolling average, proceed as planned. If it's notably slower, drop the day's top-end intensity by 5-10% rather than grinding through the prescribed weight.

Most bad overhead press velocity data isn't a sensor problem — it's a technique-consistency problem that happens to show up as noisy numbers. Run through this before trusting a session's data:

• Leg drive creeping in above 80%. The heaviest reps are exactly where lifters unconsciously start dipping the knees. If the last two loads on the ladder look artificially fast relative to the trend line, this is the first thing to check on video.
• Grip width drifting between sessions. A half-inch wider or narrower grip changes the torque arm at the shoulder enough to shift velocity at a given load by a noticeable margin. Mark grip position on the bar with tape and use it every session.
• Elbow flare changing session to session. Flared elbows shorten the effective lever and can make the same weight move faster, which looks like a good day on the sensor but is actually a technique change, not a readiness change.
• Testing on a day the shoulders are pre-fatigued from bench or dips 24-48 hours earlier. Overhead press readiness tracks upper-body accessory volume closely. A profile session stacked right after a heavy pressing day will read artificially slow and skew the regression.
• Touch-and-go reps mixed with dead-stop reps in the same data set. Bouncing the bar off the shoulders adds a small elastic contribution that a paused rep doesn't get. Pick one style and keep it consistent for every profiling session.

None of these require better equipment to fix — they require the same rep, the same setup, and the same bar path every time the profile gets measured.