What Systematic recommends
Where to start
- A counter, ideally. If a counter is not available, a stable box or chair backed securely against a wall so it cannot slide away. Stand facing the counter or other stable surface, place your palms on the counter, place your feet roughly shoulder-width apart, keep your heels flat on the ground, step back until your body is positioned at approximately a 45-degree angle.
- Keep the elbows still throughout the movement. Engage your midline as if holding a strong plank position, keep the midline stable and the abdominal muscles active. Perform the movement primarily through the shoulder blades rather than the elbows, protract the scapulas by pushing the counter away from you, keep the scapulas actively pressing forward throughout the hold, avoid elevating the shoulders, press the palms firmly into the counter as if trying to push it away.
- Hold the position for 15 seconds, rest for 15 seconds, repeat for 3 total cycles. Breathe comfortably and fully throughout the hold. Stop and reassess if you feel pain or discomfort, if you are unable to keep the elbows still and the midline stable, or if the shoulders begin to elevate and you can no longer maintain the intended position.
Condensed from the published Development Pathway (Tempo Push-Ups: Counter-Height Isometric Plank-Press). This is a starting point, not a training program or medical advice.
What the trunk has to do
In a strict push-up your arms repeatedly push against a meaningful share of your body weight. Meanwhile your trunk has to stay stiff enough to keep your body moving as one unit, without collapsing or changing shape.
Howarth and colleagues measured this directly in a push-up study: the abdominal muscles dominated the contributions to stiffness at the joints of the spine. That makes the push-up a trunk-stiffness task in addition to a pressing task.
The Tempo Push-Up requires that trunk stiffness and the control that stops the lower back sagging while your body moves as one unit. What it reports is the number of technically valid repetitions under the fixed-cadence protocol; it does not directly measure spinal joint stiffness, the pressure inside your abdomen or muscle activation.
How the shoulder blades work
At the shoulder girdle, control of the shoulder blades helps pass force between your hands and your trunk. Two muscles, the serratus anterior and the trapezius, help coordinate the shoulder blade as that force is transferred.
The Tempo Push-Up requires that coordination as force travels through the shoulder girdle, but it does not measure it directly: the result is a count of valid repetitions.
Putting it together
Systematic describes the Tempo Push-Up as asking for four things at once: endurance against your own body weight, trunk stiffness, shoulder-blade coordination, and resisting fatigue at a fixed cadence. Its measurement is the count of technically valid repetitions.
The evidence
Each cited source is labeled according to how it supports the particular claim on this page. Direct test evidence, underlying-capacity findings and population reference values are distinguished from Systematic-defined protocols and standards. Historical development notes are retained internally rather than presented as public evidence. A study of an underlying capacity is never presented as validation of the Systematic test itself.
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Underlying-capacity evidence
Howarth et al. (2008). Abdominal Muscles Dominate Contributions to Vertebral Joint Stiffness during the Push-up. Journal of Applied Biomechanics.
What it found. During the push-up, the abdominal muscles dominated the contributions to stiffness at the joints of the spine.
What it does not show. It is a biomechanics study of the push-up movement. It did not test the Systematic Tempo Push-Up or its scoring, and it says nothing about health outcomes.
The Systematic Healthspan Assessment is a physical baseline. It is not a diagnosis, and it does not estimate a biological age, a disease risk or a lifespan.