Strength: economy when fatigue builds
· 1 min read
First published:
Research through: 17 July 2026
A 2025 randomized trial is background available by this July Friday. Twenty-eight trained men added strength and plyometrics or continued habitual running; the test was ninety minutes, not an ultra.
Selected research available by this Friday; older studies are background, not weekly discoveries. Assessed in October 2026; screening was not exhaustive.
Topics: Training
Finding
Running oxygen cost at the end of the test improved more in the added-training group than in the running-only group.
Limitations: This is a laboratory economy outcome, not a measured ultra-race gain.
Evidence level: Moderate evidence
Finding
The added-training group improved its high-intensity time to exhaustion after the long run.
Limitations: Time to exhaustion is not a finish-time prediction.
Evidence level: Moderate evidence
Finding
Strength and plyometrics were combined in the intervention, so their separate contributions were not tested.
Limitations: The trial does not identify one indispensable exercise.
Evidence level: Moderate evidence
Interpretation
Fresh running economy and fatigued economy answer different questions. The laboratory result supports further investigation, without prescribing a program or promising an ultra-race improvement.
Further reading: current guides
Update history
- · Historical edition researched, translated and assessed in October 2026; Friday publication date retained.
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