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Courir 3x par semaine et quand même progresser, c’est possible ! Mais à une condition …more

original sound — @runningaddict

what it claims

To improve while running only 3 times per week, you must avoid running at high intensity during every session so as not to exceed the body's assimilation capacity and to avoid injuries.

holds up

This advice aligns with the principle of polarized training, which is widely supported in sports literature.

noli's read

This advice aligns with the principle of polarized training, which is widely supported in sports literature. Meta-analyses, such as the one published in the 'Journal of Strength and Conditioning Research', confirm that the majority of training (approximately 80%) should be performed at low intensity to allow for optimal physiological adaptation without exhaustion. The idea that running too intensely too often leads to stagnation or injuries is corroborated by observational studies on long-distance runners. The concept of 'assimilation capacity' refers to the phenomenon of supercompensation, where the body needs recovery periods to improve performance. What is stated here is therefore scientifically sound and avoids the 'no pain, no gain' pitfall. There is no notable exaggeration, as the author correctly emphasizes the need to moderate effort, which is a prudent and effective approach for regular runners.

the sources

  1. 1Rosenblat MA, Perrotta AS, Vicenzino B 2019
  2. 2Silva Oliveira P, Boppre G, Fonseca H 2024
  3. 3Menshikova EV, Ritov VB, Ferrell RE, et al. 2007

Claimed by Running Addict. Noli grades the claim, never the person.

Decoded by Noli · July 18, 2026 · the original post

What the graded evidence says

Evidence
C
Effect
endurance performance (VO2max, time trial) polarized vs threshold intensity distribution — polarized modestly favored in a small meta-analysis (only 3-4 RCTs); a larger 2024 review found no clear superiority over other distributions
Measured on
trained endurance athletes (>2 years experience); mechanistic mitochondrial data in adults

What’s uncertain

The head-to-head evidence for a specific intensity split is limited to a handful of small trials with mixed results, so precise prescriptions like exact Zone 2 percentages shouldn't be treated as settled science.

Running Addict in the Register102 claims graded · solidity 95/100See their record →

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