After a few weeks — a trip, a winter, a busy month
After a long break — several months without running
After an injury — the decision to return is yours
Plan length
6 to 12 weeks, depending on how long the break was and where you start from.
Example
A typical week in the build phase
MonRest
TueWalk-run2 min running, 1 min walking, repeated2.5 mi
WedRest
ThuWalk-run2 min running, 1 min walking, repeated3.1 mi
FriRest
SatEasy30 min, conversational3.1 mi
SunLong runThe longest run of the week, without pushing5 mi
Week total14 mi
The sessions that matter
What goes quickly comes back quickly
After two to four weeks off, the drop is first in the blood and the heart — plasma volume, stroke volume. That is also what rebuilds fastest.
The longest run, not the weekly total
The one solid figure for steering a comeback is about the longest session of the last thirty days. That is what we watch, not weekly mileage.
Distance before pace
You go longer before you go faster. Walk-run steps are a craft habit consistent with what we know about load — not a validated protocol, and your plan tells you so.
Start
A template plan for your goal, ready right away.
Four questions, and a plan built automatically based on your level and your number of sessions.
$39one payment
You pay once. Nothing renews.
Four questions: goal, race date, level, sessions per week
Built automatically based on your level and your number of sessions
Up to your race, 20 weeks at most; 8 weeks without a race (up to 15 if you start with walk-run)
Paces from a recent race time, otherwise by perceived effort
Ready as soon as you pay if you ask to start right away
Best for getting started fast with a simple framework, paid once.
Your plan built from your answers and reviewed by a person, with nutrition and race strategy. Automatic analysis of your watch data is coming soon. A subscription with no commitment: monthly, first month free on your first subscription; yearly, paid in one go.
$250a year
or $24.90 a month
Monthly: first month free on your first subscription · no commitment, stop whenever you want
Built from the full questionnaire: your background, your week, your constraints
Reviewed by a person before it reaches you
Messages to adjust a session, and a plan that moves with you
Less time than you think for part of it, more for the rest. After two to four weeks off, maximal oxygen uptake falls by around 6 % — and that fall is mostly a matter of blood volume, so it comes back fast. Lactate threshold, on the other hand, holds beyond 85 days off. You kept more than you think.
I am coming back from an injury. Can you help?
Yes. The decision to return is yours: Eleonis cannot assess your injury. Some injuries deserve a health professional’s opinion before you run again — pain that persists or comes back, pain in a bone, a recent injury, a past stress fracture — and your profile reminds you of this with a warning. No return-to-running protocol has been validated by a controlled trial. What we build is a cautious progression: the steps, the load, the order of things. And one rule never moves: you stop the session as soon as pain appears or gets worse.
The fitter I was, the faster I lose it?
Yes, and it is counter-intuitive. The most recent gains are the first to go, and the reduction in cardiac mass during a break is more marked in the most trained. The minimum dose to hold on to your fitness is set by your level, not by a single rule.
Is cycling or swimming any use during a break?
Yes, as long as you put intensity into it. What goes first is central — blood and heart — so gentle cross-training defends very little. Cross-training that really loads the central system targets the right thing.
How many sessions a week?
Three to four at the start, very short. Frequency is a better lever than the length of each session when you are building load back up.
Where the figures on this page come from
Every figure on this page points back to the paper it comes from. When a question has no settled answer, the page says so instead of inventing a number.
Mujika I, Padilla S (2000) — Detraining: loss of training-induced physiological and performance adaptations. Part I: short term insufficient training stimulus. Sports Medicine 30(2):79-87. doi:10.2165/00007256-200030020-00002
Mujika I, Padilla S (2000) — Detraining: loss of training-induced physiological and performance adaptations. Part II: long term insufficient training stimulus. Sports Medicine 30(3):145-154. doi:10.2165/00007256-200030030-00001
Coyle EF, Hemmert MK, Coggan AR (1986) — Effects of detraining on cardiovascular responses to exercise: role of blood volume. Journal of Applied Physiology 60(1):95-99. doi:10.1152/jappl.1986.60.1.95
Coyle EF, Martin WH, Bloomfield SA, Lowry OH, Holloszy JO (1985) — Effects of detraining on responses to submaximal exercise. Journal of Applied Physiology 59(3):853-859. doi:10.1152/jappl.1985.59.3.853
Chi MM, Hintz CS, Coyle EF, et al. (1983) — Effects of detraining on enzymes of energy metabolism in individual human muscle fibers. American Journal of Physiology 244(3):C276-287. doi:10.1152/ajpcell.1983.244.3.C276
Massarotto RJ, Campbell AJ, Kreiter E, Claydon VE, Cote AT (2024) — Effects of detraining on left ventricular mass in endurance-trained individuals. European Journal of Preventive Cardiology 31(4):415-424. doi:10.1093/eurjpc/zwad327
Your race is on the calendar. Your plan should be too.
