Medicine ball throw test: Protocol, norms and results guide

The medicine ball throw test is a field test of upper body explosive power. The subject pushes a medicine ball from the chest with both hands, and the score is the distance it travels. Strength coaches, sports scientists, physical therapists and fitness assessors use it to measure how much force an athlete or patient can produce.

Sports medicine practices, fitness centers and tactical fitness programs use it as a standard part of physical assessment batteries. Unlike lab-based isokinetic dynamometry, it needs minimal equipment and takes under five minutes. It also produces a distance that is easy to track across training blocks.

Two variants exist. The seated version isolates upper body output by removing leg drive, and the standing version adds trunk and lower limb contribution. Either way, a score only means something when the ball weight, the setup and the norm table all match the person being tested.

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Key takeaways

The medicine ball throw test measures upper body explosive power as a two-handed chest-pass distance, in a seated or standing variant.

The seated variant isolates the upper body, while the standing variant adds trunk and leg drive.

A score only compares against norms built with the same ball weight and setup, such as the Utah protocol’s 2 kg floor-seated throw.

Use the best of three trials, and run a familiarization session first to limit the learning effect.

Practice management software like Pabau stores every trial against the patient record, so retests compare like for like.

What the medicine ball throw test measures and who uses it

The medicine ball throw test measures upper body explosive power, specifically the capacity to generate rapid force through a bilateral push pattern. It captures both muscular strength and the rate of force development. Where speed of movement matters, that makes it more functionally relevant than a static grip or isometric push test.

Four groups use it most:

• Strength and conditioning coaches, who assess athletes during pre-season or return-to-training phases.
• Physical therapists, who track upper extremity rehabilitation progress.
• Tactical fitness assessors, who screen law enforcement and military recruits.
• Exercise scientists, who run population-level fitness batteries.

The seated variant is especially common in rehabilitation and adolescent testing because it removes the confounding contribution of lower body drive.

Seated vs standing medicine ball throw test: Key differences

The seated and standing variants measure different qualities. Pick the wrong one and a poor standing score can look like upper body weakness when the problem sits in trunk transfer or leg drive.

Equipment and setup

Equipment requirements are minimal, but ball weight selection is critical. Using the wrong ball weight invalidates any comparison against published normative data for your population.

• Medicine ball: The right weight depends on the norms you plan to use. The Utah adolescent protocol uses a 2 kg ball for boys and girls aged 12-15. Adult sport science norms typically use 3 kg for females and 4 kg for males. Many law enforcement protocols use 4.5 kg (10 lb) for recruits. Check the weight against the specific normative table you intend to use before testing.
• Measuring tape or distance markings: A retractable tape measure or pre-marked floor tape in 10 cm increments. Secure the tape at the release point (chair base for seated, start line for standing).
• Chair (seated variant): Standard upright chair with a firm back. Height adjusted so hips are at 90 degrees with feet flat on the floor.
• Clear throwing lane: At least 8 meters (about 26 feet) of unobstructed floor directly ahead of the subject.
• Recording sheet or digital form: Log ball weight, trial distances and the best result. Digital assessment forms cut transcription errors compared with paper sheets.

Consistent administration also means controlling room temperature and using a non-slip floor. If you compare results over time, standardize the warm-up across all sessions.

Step-by-step administration protocol

Administer a standardized warm-up before either variant. Start with 3-5 minutes of light upper body movement, such as arm circles, band pull-aparts, and bodyweight push movements. Follow it with 2-3 submaximal practice throws at 50-75% effort. Allow 60 seconds rest after the final practice throw.

Seated medicine ball throw protocol

1. Position the subject in the chair with back flat against the support, hips at 90 degrees, and feet flat on the floor. The chair should be fixed so it does not slide during the throw.
2. Hold the medicine ball at chest height with both hands, fingers spread, elbows at approximately 90 degrees and pointing outward.
3. On the assessor’s signal, execute a bilateral chest pass with maximal effort. No countermovement (rocking back) is permitted. Back must remain in contact with the chair throughout.
4. Measure distance from the front base of the chair to the nearest point of first contact of the ball with the floor. Record in centimeters.
5. Complete 3 trials with 45-60 seconds rest between each. Record all three distances and use the best trial as the result.

Standing medicine ball throw protocol

1. Subject stands at the start line, feet shoulder-width apart, toes behind the line. A slight knee bend is permitted for balance but no wind-up or step is allowed before release.
2. Hold the ball at chest height in the same bilateral chest-pass grip as the seated variant.
3. Throw forward with maximal effort. If either foot crosses the start line before the ball lands, the trial is void.
4. Measure distance from the start line to the nearest point of first contact with the floor.
5. Complete 3 trials with 45-60 seconds rest. Record the best result in centimeters.

Scoring and measurement

Record all three trial distances. Use the best single trial as the subject’s score. Round to the nearest centimeter. Do not average the trials, as averaging underestimates peak performance and reduces sensitivity to improvement over training blocks.

A trial is void after a foot fault, a back leaving the chair, or a countermovement. Record it as void and allow a replacement trial after a standard rest period, with a maximum of one replacement per session. Note each voided trial and the reason if results will feed longitudinal tracking or an audit.

Practice management software like Pabau handles this through its measurements tracking software, which stores raw trial data alongside the best result. Voided trials then stay visible in the session record.

Interpreting results against published norms

Normative reference values for the medicine ball throw test are population-specific. Comparing an adolescent’s result against an adult athlete table produces a misleading interpretation. Always select the table that matches your subject’s age, sex, and population category. The three reference sets below each assume a different ball and setup.

Normative values for adult athletes

Compiled sport science literature gives benchmarks for adult athletes using a 3 kg ball (females) or a 4 kg ball (males). They typically fall in the ranges below. These are general reference figures, so confirm sport-specific norms against the source publications.

Normative values for adolescents

Adolescent reference values come from a study in The Sport Journal that used the Utah seated medicine ball throw protocol. Researchers tested 113 students aged 12-15 at one northern Utah school, in two age bands: 12-13 and 14-15. Boys and girls threw the same 2 kg ball.

The Utah setup differs from the chair protocol described above. Students sat on the floor with their legs extended and their upper back against a wall. Replicate that position and use a 2 kg ball before comparing a student’s score with the table below.

The study reports its means in meters, such as 4.3 ± 0.7 m for boys aged 12-13. They are converted to centimeters here to match the rest of this guide. Between the two bands, the boys’ mean rose by about 90 cm and the girls’ by about 30 cm.

These distances run longer than the adult athlete figures above because the ball is much lighter. Never compare a Utah score against the adult table, or an adult score against this one.

The data covers ages 12-15 only, so it does not apply to older teenagers or adults. The original paper also lists quartile cut-offs for each band if you need a percentile rank.

Normative values for law enforcement and tactical populations

The NSCA Tactical Strength and Conditioning (TSAC) program has published normative data for law enforcement recruits. These use a 4.5 kg (10 lb) ball in the seated variant. The figures reflect occupational fitness standards rather than sport performance benchmarks. They are meant for pre-employment or fitness program screening.

• Male recruits (90th percentile): approximately 320-350 cm
• Male recruits (50th percentile): approximately 265-290 cm
• Female recruits (90th percentile): approximately 210-230 cm
• Female recruits (50th percentile): approximately 170-195 cm

Check the current NSCA TSAC tables before using these figures in formal recruit screening programs, because the standards are reviewed periodically.

What affects throw distance?

Six variables shift throw distance beyond upper body strength. Knowing them helps practitioners separate performance change from measurement noise. It also stops a short throw being blamed on weakness when a protocol variable caused it.

• Ball weight: Every 0.5 kg increase in ball weight reduces average throw distance by approximately 5-10% across populations. Test a subject with a 4 kg ball and retest with a 3 kg ball, and they will appear to have improved substantially. Their upper body power has not changed.
• Arm length and wingspan: Longer levers produce greater rotational force at release. Taller athletes with longer arms will typically throw further than shorter athletes of equivalent relative upper body strength. This is why comparing across body sizes using raw distance has limitations.
• Trunk contribution (standing variant): In the standing test, subjects who allow trunk extension and rotation before release drive the ball noticeably further. Standardize instruction carefully. “Chest pass only” and “use your whole body” produce different scores on the same subject.
• Learning effect: Throw distance typically improves by 3-8% over the first 2-4 testing sessions, even without any training stimulus. The gain comes from subjects learning to optimize release mechanics, so first-session scores tend to understate what the subject can throw.
• Fatigue state: Testing after resistance training, a competition, or insufficient sleep depresses results by 5-15% depending on the intensity of the prior loading. Always test in a standardized fatigue state (typically 48 hours from heavy upper body loading).
• Surface compliance: A carpeted or rubberized floor absorbs impact differently than a hardwood or concrete surface. If the ball bounces significantly on first contact, the measurement point is less consistent. Hard, flat surfaces produce the most repeatable measurements.

Reliability, validity and limitations

The seated medicine ball throw test has shown good to excellent test-retest reliability in published research. One validation study, indexed on PubMed (PMID 21572350), tested 33 older adults with a mean age of 72.4. It found the seated throw a valid measure of upper body power in that group, so treat it as evidence for older populations specifically.

Across studies, intraclass correlation coefficients (ICC) typically run from 0.89 to 0.97. That indicates low measurement error when the protocol is administered consistently.

Concurrent validity against isokinetic dynamometry and one-repetition maximum bench press is moderate to strong. The test correlates meaningfully with established lab-based measures. It is not, however, a substitute for load-specific strength assessment when precise force-velocity profiling is needed.

The seated variant does not capture the power transfer from lower body to upper body that underpins most sport-specific pushing actions. It is an isolation measure, useful for rehabilitation baselines and for populations where lower body contribution needs to be removed. As a standalone indicator of sport performance, it is limited.

Like most field tests, it belongs in a broader test battery rather than serving as the sole outcome measure. The learning effect also means a first test result underestimates capacity, so flag it before any normative comparison.

How to use the results in practice

A result only has value when it informs a decision. Build these four applications into your testing workflow.

Tracking progress across a training block: Retest every 6-8 weeks and plot distance against the program variables, such as volume, intensity and push-pattern exercise selection. A flat or falling result under an appropriate load is a signal to review programming or recovery.

Those comparisons only work if every session’s results can be pulled up without manual spreadsheet work. That retrieval check is worth running when you compare sports medicine software options.

Part of a field test battery: The medicine ball throw test pairs well with a countermovement jump (lower body power) and a 20-meter sprint (speed). Together these three tests give a power profile across the three major movement qualities. A subject who throws well but jumps poorly has a different training priority than one who jumps well but throws poorly.

Rehabilitation milestones: In upper limb rehabilitation, the seated variant can serve as a criterion for return to sport or to specific occupational tasks. Compare throw distance against the pre-injury score where one exists, or against same-age normative values as a functional threshold.

The return-to-running assessment protocol uses a similar milestone-driven approach for lower limb rehabilitation, and the logic transfers directly.

Communicating results to athletes and patients: Present the result alongside the relevant normative percentile, not just the raw distance. “You threw 290 cm” means very little. “You threw 290 cm, which puts you at about the 65th percentile for adult male athletes” gives the number context.

A physical therapy EMR that produces patient-facing reports cuts the time spent formatting results after each session. In Pabau, Client records hold each assessment in date order, so practitioners can pull comparison data between sessions quickly.

How Pabau keeps throw results comparable across sessions

Many practices log throw distances on a paper sheet or a spreadsheet kept apart from the patient record. The ball weight, the variant and any voided trials drift away from the score. A retest six weeks later then becomes hard to compare like for like.

Pabau keeps each test session in one place. Digital assessment forms capture the ball weight, the variant and every trial while the test is running. Measurements tracking then stores the trials and the best score against the patient’s record, so nobody retypes results afterward.

The result is a retest you can trust. Practitioners pull up earlier sessions in seconds and show athletes their progress without rebuilding a spreadsheet.

Track athlete assessments across your whole practice

Pabau’s measurements tracking and Client records let you log medicine ball throw results and monitor progress over training blocks. Share reports with athletes or referrers without the paper trail.

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Conclusion

The medicine ball throw test earns its place in a field battery because it is quick, cheap and reliable. That value holds only when the ball weight, the seating setup and the norm table all match. A 2 kg floor-seated throw from a 13-year-old and a 4 kg chair throw from an adult athlete cannot share a scale.

Choose the variant that answers your question, then lock the protocol and retest under the same conditions every six to eight weeks. The trend across sessions will tell you more than any single percentile. Book a demo to see how Pabau keeps every throw, retest and report in one patient record for sports medicine and physical therapy practices.

Continue your research

Building a lower body power profile? Drop jump test guide covers the protocol, the metrics and how to interpret results.

Need another upper body field test? Alternate hand wall toss test sets out the protocol, adult norm tables and scoring rules.

Adding change of direction to your battery? Illinois agility test guide explains the course setup, norms and scoring.

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