One is a three-time Olympic time trial champion. The other holds every distance running world record from 1500m to marathon in the 75 to 79 age group. Their weeks look nothing alike. Their recovery weeks look almost identical.
Pictures from Tim De Waele/Getty Images & Daniel Lozada
Kristin Armstrong crossed the Rio Olympic time trial finish line on 10 August 2016, aged 42, one day before her 43rd birthday. She won gold by five seconds over Olga Zabelinskaya.
It was her third consecutive Olympic time trial gold, following Beijing 2008 and London 2012.
Nine years later, in early 2025, researchers at a Canadian sports physiology lab tested a 77-year-old marathoner named Jeannie Rice and measured her VO2 max at 47.9 mL/kg/min.
That is the aerobic capacity of a healthy, well-trained 25-year-old woman. For most women in their 70s, VO2 max sits closer to 20.
Two women, 35 years apart in age, competing in different sports.
The similarity is not what they train. It is what they recover.
The Training Overlap Everyone Talks About
Armstrong's Rio prep was, by her own account on TrainingPeaks, built around short high-intensity work above her threshold. Three-minute efforts. 40/20s and 20/40s. Over-unders.
She had to specifically train the upper VO2 band, she said, because "that seems to go away much quicker these days."
Rice's weekly schedule, running for context, is roughly 50 miles a week. She runs one day of group speedwork, one tempo run, one long run, with easy recovery days in between.
She has been self-coached since she was 35.
Both women concentrate high-intensity work in short, structured, recoverable doses.
Both understand that the top-end aerobic band is what disappears fastest with age.
That is the visible part.
The Recovery Overlap Almost Nobody Talks About
The pattern that shows up in both playbooks, and that Armstrong specifically credits with her Rio comeback, is what she called "anything pretty much off the bike."
She had never done functional strength work before Rio.
During her Rio build, she added it deliberately, and she credited it with what changed between her London win at 39 and her Rio win at 42.
Rice's pattern is quieter but tracks the same principle.
She has run for 42 years with almost no injuries. Her running economy tested unremarkable in the lab, meaning her raw efficiency did not explain her performance.
What did explain it, in the researchers' framing, was her lifetime pattern of avoiding excessive stress, her deliberate recovery day placement, and her consistent volume.
Neither of these women is holding a 25-year-old's peak power. What they are holding is the ability to repeat that peak week after week without breaking down.
That is a recovery architecture, not a training one.
What Actually Slows With Age
VO2 max declines roughly 8 to 10 percent per decade past 30 in the general population. In elite masters athletes who continue high-intensity training, the decline slows to roughly 5 to 6 percent per decade.
Peak power drops faster than aerobic capacity.
Type II muscle fibre atrophy explains most of it.
The maximal effort you could hold for 30 seconds at 25 is not accessible at 45, and there is no training intervention that restores it fully.
What does not decline as fast, and what both Armstrong and Rice appear to have optimised around, is the ability to accumulate volume without fatigue accumulation.
That is the recovery capacity story.
The peer-reviewed sleep and recovery literature suggests that in masters athletes, the limiting factor on total weekly training load is not the peak intensity of any single session.
It is the recovery window between sessions. Sessions can be as hard as they were at 25. There simply need to be more hours between them.
The Sleep Architecture That Supports This
This is the part of the story the mainstream cycling press keeps missing.
The peer-reviewed data on sleep and endurance performance shows a specific pattern.
Sleep restriction elevates lactate accumulation, ventilation, and heart rate at submaximal loads, effectively pushing every training session harder than it should be.
For a masters athlete, that shift converts an intended Zone 2 ride into an unintended tempo effort, and quietly ruins the aerobic block it belonged to.
Better physical performance associates with extended sleep the night before, and with increased time in light sleep during recovery windows.
Armstrong has been public about her sleep discipline during her competitive years. Rice's daily pattern, reported by Runner's World, includes 8 to 9 hours of sleep as a consistent baseline.
Neither of these women is treating sleep as optional.
Both of them are treating it as the base layer of training, not the recovery from it.
The Strength Work Armstrong Added
The most concrete tactical change Armstrong made between London (age 39, gold) and Rio (age 42, gold) was adding functional strength work off the bike.
She was specific about the type. Not heavy compound lifts.
Not bodybuilding-style hypertrophy. Functional training targeting the stabilisers and neuromuscular coordination that a top-end sprint effort requires.
The physiology here is well documented. Sarcopenia in masters athletes runs at roughly 3 to 8 percent muscle mass loss per decade past 30, accelerating past 60.
The riders who preserve peak power into their 40s are the ones who lift.
Rice does not lift in a traditional gym sense, but her running-only regime is supplemented with the kind of low-grade daily activity, walking, standing, moving, that acts as an accidental strength preservation programme.
It is not identical to what Armstrong did. It solves the same problem.
Where Rice's Story Diverges From The Cycling Playbook
The cycling parallel to Rice's approach is imperfect, and worth naming.
Rice is a runner. Weight-bearing impact stimulates bone density adaptations that cycling does not produce.
For a masters cyclist to replicate the durability piece of Rice's story, weight-bearing exercise has to come from somewhere else. Walking. Running. Strength work.
Cycling alone does not protect against age-related bone density loss. It is one of the reasons masters cyclists specifically show elevated rates of osteopenia and stress fractures compared with weight-bearing athletes of the same age.
The lesson from Rice for cyclists is not "run 50 miles a week." It is that cycling volume alone will not preserve the durability she has. Something weight-bearing has to enter the plan.
The Perimenopause Adjustment That Kept Armstrong's Career Alive
The relevant piece for the Rice comparison is that Rice had similar hormonal shifts happen decades before her VO2 max testing and continued training through them without a competitive coach or a physiology lab behind her.
She made intuitive adjustments.
She scaled back when injuries threatened. She held onto the weekly rhythm.
Both women, one with a pro coaching apparatus and one entirely self-coached, arrived at the same architectural principle. Weekly volume is protected.
Peak intensity is scheduled.
Recovery is the base layer.
What This Actually Prescribes For A Masters Cyclist
If you are 45 to 65 and trying to hold onto competitive form, the pattern from these two women is not a training plan. It is a weekly architecture.
Peak intensity work: two sessions a week, not three. The recovery cost of a third weekly hard session, per the aging-athlete research, exceeds the fitness benefit for most riders past 45.
One long endurance session per week that stays genuinely aerobic. Not a group ride that drifts into tempo. Not a race-simulation effort.
Two off-bike strength sessions, focused on functional and neuromuscular work. This is what Armstrong specifically added.
Sleep as a training input, not a bonus. 8-plus hours as a baseline. Sleep-tracking data as legitimate as power data.
Weight-bearing activity somewhere in the week, whether that is strength training, hill walking, or something else.
Cycling alone does not preserve bone density, and no amount of Zone 2 volume compensates for that.
Where Both Playbooks Fall Short
Neither Armstrong nor Rice can tell you what to do about a genuine talent ceiling.
They both had exceptional genetic starting points.
Armstrong's VO2 max was elite-level in her 20s.
Rice's aerobic capacity was in the top 1 percent of women her age before she ever started running.
That means the specific numbers, the exact VO2 max at 77 or the exact watts-per-kilogram at 42, are not portable.
What is portable is the architecture around the numbers, and that is what the peer-reviewed masters athlete literature keeps confirming.
Peak declines. Recovery capacity, defended actively, does not decline as fast.
The Playbook Nobody At Your Cycling Club Uses
Every masters riding group has a member who trains like they are 28.
Three hard sessions a week. Skipped sleep. No strength work. Chronic overuse injuries treated as inconvenient rather than diagnostic.
That rider will not be riding at 65.
The rider who will be riding at 65, and possibly at 77 in Rice's model, is the one who understands that the weekly rhythm is the training.
The individual sessions are how the rhythm expresses itself.
Armstrong understood this at 42.
Rice has understood it since 35. Both women stayed competitive long past the age at which their contemporaries retired.
The lesson is not that they are outliers. It is that the recovery architecture that made their careers possible is available to any masters rider willing to build it.
Two hard sessions. One long ride.
Two strength days. Real sleep. A weight-bearing activity somewhere in the week.
That is what a 77-year-old marathoner and a three-time Olympic cyclist quietly share. It is not glamorous, and it is not what the training platforms are selling.
It is what actually works.
