Velocity loss threshold jump sprint: small gains, limits
In short
Across 12 RCTs and 42 effect sizes in trained people, a three-level meta-analysis found a small jump-and-sprint advantage for lower velocity loss thresholds: g=0.29 (95% CI 0.17–0.42). Jump and sprint estimates were g=0.27 and g=0.32, respectively; certainty was low to moderate, so this supports an option for athletic power without establishing the best cutoff for 1RM gains.
Ending resistance-training sets at lower velocity loss (VL) thresholds modestly favored subsequent jump and sprint performance. That finding comes from a three-level meta-analysis of 12 randomized trials containing 42 effect sizes in trained people. VL describes how much repetition speed falls within a set. The combined estimate, g=0.29 (95% CI 0.17–0.42), is a standardized difference between conditions; it cannot be read as a 29% improvement in jump height or running speed.
Which jumps and sprint distances showed a difference?
The jump estimate was g=0.27 (95% CI 0.10–0.45), and the sprint estimate was g=0.32 (0.13–0.50), both favoring lower VL. Evidence was clearer for countermovement jump (CMJ), 10 m sprint and 30 m sprint. Squat jump (SJ), which starts without a countermovement, and 20 m sprint did not show statistically significant differences. Those uncertain results neither establish equal effects nor justify promising improvements at every distance.
| VL comparison | Finding |
|---|---|
| 10% versus 30% | Significant advantage for 10% |
| 10% versus 20% | Significant advantage for 10% |
| 20% versus 40% | Smaller, non-significant difference |
Should a Big 3 total goal also mean a 10% cutoff?
For a block judged by jumping and acceleration, a lower cutoff is a reasonable option to test. For a block judged by squat, bench and deadlift 1RM, this analysis does not identify the best threshold. A practical fairlift approach is to select the performance target first: assess a strength block with lift records and the Muscle Index, and assess an athletic-power block with jump height and sprint times. A change in one outcome does not establish a change in the other.
Log the stopping rule beside load, repetitions and sets. Without a velocity device, practical alternatives include a planned repetitions-in-reserve (RIR) target or ending the set when reps visibly slow; neither gives an exact conversion to 10% VL. Record which rule you used so later sessions can be interpreted fairly. For what a 10% cutoff means in a single session, the companion article covers a separate acute study. Its immediate power measurements answer a different question from training-related changes in jump and sprint performance.
Between-study heterogeneity was negligible, but evidence certainty was low to moderate. Exploratory tests found no significant moderation by population, frequency, mode, duration or VL-threshold difference; limited statistical power may explain those null findings. They do not show that the same prescription suits every setting. Lower VL remains one option for speed-power training.
Frequently asked questions
How much do lower velocity loss thresholds favor jump and sprint performance?
Across 12 RCTs, the combined effect was small: g=0.29 (95% CI 0.17–0.42). Jump and sprint estimates were g=0.27 and g=0.32, but not every specific outcome showed a significant difference.
Is 10% the best stopping threshold for every goal?
Comparisons with 20% and 30% favored 10% for jump and sprint outcomes. This analysis does not establish the best cutoff for 1RM, the Big 3 total or every individual.
How can I stop sets without a velocity device?
Practical alternatives include a planned RIR target or ending a set when repetitions visibly slow. Neither method is an exact equivalent of a particular VL percentage.
What should I record alongside each set?
Add the VL threshold, RIR target or visual stopping rule to load, reps and sets. Track Big 3 1RM separately from jump height and sprint times to judge progress against each goal.
Source: PubMed (published )