What Systematic recommends
Where to start
- Use a pull-up bar or other secure bar to hang from with the floor or a stable box/platform high enough to let your feet control how much body weight is placed through your hands, arms, and shoulders.
- Place your hands just outside shoulder width with full palm contact, wrap your thumbs around the bar, and lower yourself down under control while keeping your feet and legs involved enough to regulate how much body weight your upper body is supporting.
- Hold for 30 seconds. Use approximately 50% assistance from your feet and legs. Keep the amount of loading controlled through the feet throughout the hold. Breathe fully and smoothly for the duration of the hold. Rest for 30 seconds. Repeat for 3 total rounds. Stop and reassess if you feel pain or discomfort, if you are unable to control the amount of body weight through your feet and legs, or if you can no longer maintain a comfortable grip and controlled hanging position.
Condensed from the published Development Pathway (The Dead Hang: Floor-Supported Decompression Hang). This is a starting point, not a training program or medical advice.
What each one measures
Grip-strength studies, such as the large PURE study led by Leong in 2015, measure how hard you can squeeze a handle on a dynamometer. The Systematic dead hang measures time: how long you can hang while the bar holds your full body weight.
So the dead hang is not a grip-strength test. It measures sustained support-grip endurance and coordinated upper-body fatigue under your own body weight. The two are linked at the level of the underlying capacity, which is not the same as one measurement standing in for the other.
Why hanging involves more than the hand
The main study of the dead hang itself, by Exel and colleagues in 2026, followed 11 recreational advanced-to-elite male climbers through one maximal hang to failure on a 20-mm wooden edge. Their hangs lasted approximately 52 seconds on average. That is a small group of trained climbers on an edge, so the figure is not a norm for anyone else.
What the study shows is that hanging is a coordinated upper-body task rather than hand squeezing alone. The hands hold your body weight while the wrist, elbow, shoulder girdle and posture muscles keep you in an overhead support position.
Muscle-activity (EMG) and movement recordings showed the demand shifting as fatigue built toward failure: from the fingers and forearm toward joints and muscles nearer the trunk, with more coupling between muscles. Grip failure and the stabilizing work closer to the trunk were linked rather than independent.
What the health link means and does not mean
Systematic uses the PURE study as the main health study behind the dead hang. Across a very large international cohort, handgrip strength measured on a dynamometer was strongly associated with mortality and cardiovascular outcomes.
PURE measured squeezing, not hanging. It shows why the underlying capacity matters, and it gives no dead hang norms. It is also an association, not proof of cause. Grip endurance is not a primary neurological indicator of whole-body strength.
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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Direct test evidence
Exel et al. (2026). Upper‐Body Neuromechanical Coordination Strategies During Fatiguing Sustained Dead Hangs in Climbers. European Journal of Sport Science.
What it found. During one maximal hang to failure, the work shifted from the fingers and forearm toward muscles nearer the trunk as fatigue built, with more coupling between muscles. Mean hang time was approximately 52 seconds.
What it does not show. It gives no dead hang norms for the general public: the sample was 11 trained male climbers hanging from a 20-mm edge.
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Underlying-capacity evidence
Leong et al. (2015). Prognostic value of grip strength: findings from the Prospective Urban Rural Epidemiology (PURE) study. The Lancet.
What it found. Handgrip strength measured on a dynamometer was strongly associated with mortality and cardiovascular outcomes across a very large international cohort.
What it does not show. It measured squeeze strength, not hang time, so it gives no dead hang norms, and it shows an association, not a cause.
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.