Velocity Based Training: How to Measure, Program, and Improve Strength and Power

Traditional strength training often relies on percentages of one-repetition maximum (1RM) to determine training intensity. Although this approach provides a structured foundation, it does not always account for daily changes in fatigue, readiness, or movement performance. Velocity based training (VBT) offers another way to prescribe resistance exercise by measuring how quickly a load moves during each repetition.

Beyond the weight on the bar, velocity based training uses movement speed to guide load selection, monitor fatigue, and track improvements in strength and power. Research suggests this approach can support neuromuscular adaptations while helping manage training volume and unnecessary fatigue.¹

VBT has applications in strength development, athletic performance, and later-stage rehabilitation. This article covers the principles behind VBT, common velocity zones, methods for measuring velocity loss, and practical ways to build movement velocity into resistance training programs.

What Is Velocity Based Training and How Does It Work?

Velocity based training is a resistance training method that uses the speed of an exercise’s concentric phase to guide training intensity and progression. Instead of prescribing exercise exclusively through percentages of 1RM, VBT measures movement velocity, typically in meters per second (m/s), to assess performance during individual repetitions.

The approach is based on the load-velocity relationship: As resistance increases, movement velocity generally decreases. Lighter loads can typically be moved faster, while heavier loads require slower concentric movements.

For example, an individual performing a barbell squat might move 40% of their 1RM at 1.0 m/s, while 85% of their 1RM might produce a velocity closer to 0.4 m/s. These values are illustrative because actual velocities vary by exercise, individual technique, and measurement method.

With an individual load-velocity profile in place, clinicians can adjust training loads according to current performance rather than a previously established maximum.

Velocity based training vs. percentage-based training

One advantage of VBT is autoregulation, which allows training intensity to respond to individual performance during a session.

For instance, an individual might normally squat 100 kg at 0.65 m/s. If that same load moves at 0.50 m/s during a later session, the decrease could suggest accumulated fatigue, insufficient recovery, or another factor influencing performance. In that case, the load could be adjusted to keep the lift within the intended velocity target.

A 2026 systematic review and meta-analysis of 17 studies and 348 trained participants found that velocity based training produced small but significant improvements in jump performance and change-of-direction ability compared with percentage-based training. Differences in maximal strength and sprint performance were not statistically significant.²

These findings suggest that VBT can be a useful alternative to traditional programming, particularly when movement speed and power production are primary training objectives.

Understanding Velocity Zones for Strength and Power Development

Velocity based training commonly organizes resistance exercises into movement velocity zones associated with different training objectives. These zones provide a framework for selecting loads based on the desired adaptation, but the relationship between velocity and resistance differs across exercises, which makes individualized testing valuable.

Common velocity based training zones

These are illustrative concentric velocity ranges based on common VBT programming conventions, not universal thresholds. The ranges may vary by exercise, testing method, equipment, and individual load-velocity relationship.

The appropriate velocity zone depends on the intended training outcome. For maximal strength development, heavier resistance generally produces slower movement velocities, while training directed toward explosive performance often uses lower resistance with greater concentric velocity.

Actual movement speed and intended speed can diverge. During heavy resistance exercise, the load may move slowly even when the lifter applies maximal concentric effort. Research supports performing the concentric phase with maximal intended velocity when training for strength and high-speed performance.³

How to measure movement velocity

Several technologies can measure velocity during resistance exercise:

• Linear position transducers: Track displacement and calculate movement velocity through a cable attached to the barbell or other equipment.

• Accelerometers and inertial sensors: Estimate movement velocity from sensors worn by the lifter or attached to the equipment.

• Camera-based systems: Use video analysis or optical tracking to assess movement characteristics.

Because devices can differ in how they calculate velocity, consistent measurement is essential. Mean concentric velocity, mean propulsive velocity, and peak velocity represent different measurements and should not be used interchangeably. For longitudinal comparisons, using the same device, exercise technique, and velocity metric makes results easier to interpret.

When evaluating changes over time, an increase in velocity at the same absolute load may indicate improved performance. However, changes in exercise depth, range of motion, or movement technique can also influence the reading.

Using Velocity Loss to Monitor Fatigue and Training Volume

One of the most practical applications of velocity based training is monitoring velocity loss during a set. Velocity loss describes the percentage decrease in movement speed from an initial reference repetition to a later repetition.

As muscular fatigue accumulates, the speed at which a given load moves typically declines. Monitoring this decline provides an objective way to decide when to end a set based on a predefined training target.

Velocity loss formula

Velocity Loss (%) = [(Initial Velocity − Current Velocity) ÷ Initial Velocity] × 100

For example, if the first repetition of a squat is performed at 0.80 m/s and a later repetition slows to 0.64 m/s, subtract 0.64 from 0.80 to get 0.16. Divide 0.16 by the initial velocity of 0.80, then multiply by 100.

The result is a 20% velocity loss from the initial repetition. If the programmed threshold is 20%, the set would end at this point, even if additional repetitions are possible. The reference velocity should be defined the same way every time, such as the fastest repetition early in the set.

How velocity loss influences training adaptations

Different velocity loss thresholds can produce different muscular and neuromuscular responses.

A study by Pareja-Blanco and colleagues compared resistance training programs using velocity loss thresholds of 20% and 40%. The 20% group made similar squat strength gains and larger jump improvements while performing 40% fewer repetitions. The 40% group showed greater hypertrophy of the vastus lateralis and vastus intermedius, along with a reduction in the percentage of type IIX myosin heavy chain, a marker of the fastest muscle fibers, which the 20% group preserved.⁴

Another study comparing 5% and 20% velocity loss found similar improvements in strength, jump performance, and sprint performance, even though the 5% group performed only 32.6% of the total repetitions completed by the 20% group.⁵

In both studies, the lower threshold reduced training volume without sacrificing strength gains.

These are general programming considerations rather than validated prescriptions for every population. Training adaptations depend on resistance, exercise selection, experience, and total program design.

A systematic review and meta-analysis found that, when sets and relative intensity were matched, velocity loss thresholds of 25% or less produced greater gains in 1RM strength, while thresholds above 25% produced greater muscle hypertrophy.⁶

The velocity loss threshold should therefore match the primary training goal, and sets do not need to continue to muscular failure.

How to Implement Velocity Based Training in Strength and Rehabilitation Programs

Implementing velocity based training begins with establishing repeatable measurements and selecting training targets that correspond with the individual’s current capacity.

VBT can complement established methods of exercise prescription, including 1RM testing, repetitions in reserve, perceived exertion, and functional performance assessments.

Step 1: Establish a baseline load-velocity profile

Begin by assessing concentric velocity across several submaximal loads using a consistent exercise technique. For example, a squat assessment might include progressively heavier resistance while recording movement velocity at each load.

These measurements establish an individualized relationship between resistance and movement speed. Repeating the assessment over time can show improvements in velocity at a given load or changes in estimated maximal strength.

Step 2: Select the training objective

Determine whether the session prioritizes maximal strength, hypertrophy, explosive power, or a combination of adaptations. Then choose a target velocity or velocity range that corresponds to the goal, taking the exercise and measurement system into account.

Step 3: Establish a velocity loss threshold

Select a velocity loss threshold to guide the number of repetitions completed within each set. For instance, a power-oriented session might use a 10% velocity loss threshold to limit slowing, while a hypertrophy-oriented session may allow more velocity loss.

Adjust these targets according to observed tolerance, recovery, and movement quality.

Step 4: Monitor performance and adjust resistance

Record movement velocity across working sets. If velocity falls below the intended training range, reduce the resistance, extend recovery time, or stop the set. If velocity consistently exceeds the target range with appropriate movement technique, increase the resistance.

Practical example: Velocity based training after ACL reconstruction

Consider a patient in the later stages of rehabilitation after anterior cruciate ligament reconstruction (ACLR) who has regained adequate range of motion, demonstrates appropriate movement control, and has been cleared for progressive resistance exercise.

The program uses these illustrative parameters:

During the first set, the initial repetition reaches 0.65 m/s. Velocity gradually decreases over the following repetitions, and once it reaches approximately 0.55 m/s, the patient has reached slightly more than 15% velocity loss, which ends the set.

Observed performance, more than a fixed repetition count, determines when the set ends.

A 2025 narrative review discussed the potential role of velocity based training during mid- and late-stage ACL rehabilitation, including load prescription, fatigue monitoring, and the development of explosive strength.⁷

However, research specifically evaluating VBT in rehabilitation populations remains limited. Velocity measurements should complement clinical assessments, strength testing, symptoms, movement quality, and functional performance rather than serve as independent return-to-sport criteria.

Building More Individualized Strength Programs With Velocity Based Training

Velocity based training adds an objective measurement to resistance exercise by connecting movement speed with load selection, fatigue monitoring, and training progression. Tracked across sessions, velocity data lets a program respond to changes in performance while keeping the emphasis on the intended strength or power adaptation.

Research supports VBT as an alternative to percentage-based resistance training, although its advantages vary by outcome and population. Continued research is needed to establish specific recommendations for rehabilitation and return-to-sport programming.

Combining velocity measurements with established strength assessments, movement analysis, and sound exercise progression provides a more detailed picture of neuromuscular performance.

For additional education on resistance training principles, movement performance, and exercise programming, explore Medbridge’s Strength and Conditioning Continuing Education courses.

References

¹ Guppy SN, Kendall KL, Haff GG. Velocity-based training—a critical review. Strength and Conditioning Journal. 2024;46(3):295–307. https://doi.org/10.1519/SSC.0000000000000806

² Wang Y, Qiu J, Dai D, et al. The effects of velocity-based vs. percentage-based resistance training on sports performance in trained individuals: a systematic review and meta-analysis. BMC Sports Science, Medicine and Rehabilitation. 2026;18:57. https://doi.org/10.1186/s13102-025-01504-9

³ Baena-Marín M, Rojas-Jaramillo A, González-Santamaría J, Rodríguez-Rosell D, Petro JL, Kreider RB, Bonilla DA. Velocity-based resistance training on 1-RM, jump and sprint performance: a systematic review of clinical trials. Sports. 2022;10(1):8. https://doi.org/10.3390/sports10010008

⁴ Pareja-Blanco F, Rodríguez-Rosell D, Sánchez-Medina L, et al. Effects of velocity loss during resistance training on athletic performance, strength gains and muscle adaptations. Scandinavian Journal of Medicine & Science in Sports. 2017;27(7):724–735. https://doi.org/10.1111/sms.12678

⁵ Galiano C, Pareja-Blanco F, Hidalgo de Mora J, Sáez de Villarreal E. Low-velocity loss induces similar strength gains to moderate-velocity loss during resistance training. Journal of Strength and Conditioning Research. 2022;36(2):340–345. https://doi.org/10.1519/JSC.0000000000003487

⁶ Hickmott LM, Chilibeck PD, Shaw KA, Butcher SJ. The effect of load and volume autoregulation on muscular strength and hypertrophy: a systematic review and meta-analysis. Sports Medicine – Open. 2022;8:9. https://doi.org/10.1186/s40798-021-00404-9

⁷ Forelli F, Marine P, Moiroux-Sahraoui A, et al. Velocity-based training in mid- and late-stage rehabilitation after anterior cruciate ligament reconstruction: a narrative review and practical guidelines. BMJ Open Sport & Exercise Medicine. 2025;11(2):e002503. https://doi.org/10.1136/bmjsem-2025-002503