When you stop being able to run

The first three steps were fine. The fourth step put a sharp electric pain through the back of my left heel, and the fifth step I was hopping. I stopped on the side of the bike path, took my shoe off, pressed my thumb into the base of my heel, and felt the tight cord of the plantar fascia announce itself. Six in the morning, three kilometres into a route I had run a hundred times, and my body had decided we were done for the day. As it turned out, we were done for considerably longer than the day.

I am 52 and I have run, on and off, since I was 19. Four marathons, two of them embarrassing, one half-decent. A lot of slow Sunday hours along whatever river was within reach. The relationship with the sport has had its phases. Lately the relationship has been arguing.

The week it stops working

If you have run for any meaningful stretch of years, you know the feeling I am describing. There is a week, sometimes a month, sometimes a season, when running stops working. The body will not absorb the impact the way it used to. Something always hurts. The knee on Tuesday. The hip on Thursday. The calf that has been tight since March. The plantar fascia that decided to seize on a flat path at 6am. Or, the worst version, no specific injury at all, just a flat grey absence of the energy you used to have at the start of every run.

The first time it happens you assume it is a bad week. You take three days off, ice the knee, lace the shoes back up on Saturday, and the run feels fine. You have escaped. The second time it happens it lasts longer. You take a fortnight. The third time it lasts six weeks and you start to suspect that something has shifted that is not going to shift back.

This is the moment, in a runner's life, that nobody warns you about. There is a vast literature on how to start running. There is almost nothing on how to stop, or how to grieve stopping, or how to recognise the difference between a temporary injury and a permanent rebalance.

Injury or shift

The honest answer is that you cannot always tell at the time. Some heuristics help.

• Sharp pain, sudden onset, single location. Almost always an injury. Plantar fascia, IT band, Achilles, stress fracture in the foot. Rest, physio, and a structured return-to-running protocol will usually get you back inside two to four months.
• Diffuse aching, multiple joints, slow onset over six months. Often a shift. The body is telling you that the cumulative load is now beyond what the cartilage and tendons can absorb at their current capacity.
• Recurring injuries that move from joint to joint. Almost always a shift. When the knee heals and the hip flares, when the hip heals and the calf tightens, the issue is not the joint. The issue is the volume.
• No injury, just no energy. Could be either. Get blood work first (iron, B12, thyroid, testosterone). If everything comes back normal and the energy still does not return, the body has filed the paperwork on running and is waiting for you to read it.

I had spent two years assuming each new injury was the one to fix, the one before things went back to normal. The plantar fascia was the fourth in eighteen months. Sitting on the bike path with my shoe off, I realised I had been negotiating with a body that had already left the table.

The grief is real

The grief of losing a sport is not proportional to how good you were at it. It is proportional to how much of your identity it carried. For runners over 40, that is usually a lot. Running is the routine that organises the week. It is the friends you see at 5:30am on Saturdays. It is the headspace where the work problem gets solved on the third kilometre. It is the proof, every Sunday morning, that you are still the kind of person who does this.

When the running goes, all of that goes with it. The Saturday group rolls on without you. The headspace closes. The proof has to come from somewhere else, and there is, for a while, nowhere else.

I did not realise I was grieving until I was three weeks into not running and snapped at my wife about a coffee cup. I was not angry about the coffee cup. I was angry that the body I had assumed would carry me to 70 the way it had carried me to 50 had revealed itself as a shorter-term loan. Grief, in middle-aged men, often arrives disguised as irritation. (We will pick a fight with the toaster before we admit we are sad about a calf muscle.)

Name it. Tell someone. The grief moves faster when it is acknowledged than when it is buried under a fourth attempt at a comeback run.

What replaces it

Almost everything you got from running you can get from another sport, with one exception. The cardiovascular conditioning, the leg endurance, the meditative half-hour of motion, the social ritual, the post-exercise mood lift, all of these transfer. The thing that does not transfer is the specific impact-loading of running, which is also the thing that was breaking you. Losing it is the trade.

The alternatives, in rough order of how easily they slot into a runner's life:

• Cycling. Closest substitute for cardio. Builds the legs differently, mostly quads and glutes, less hamstring and calf. The hour on a bike replaces the hour running with about the same heart rate cost. Risk of road accidents is real in Australian traffic. (Drivers, generally, do not know you are there.)
• Swimming. Zero impact, full body, brutal on shoulders if your technique is rough. Hard to start past 45 if you did not swim as a kid. Worth the four lessons it takes to fix freestyle.
• Rowing. The dark horse. A Concept2 erg in a garage gives you the same cardiovascular load as a hard run, in a quarter of the joint-impact, in twenty minutes. The learning curve is two sessions. The boredom curve is real and is solved by podcasts.
• Walking. Underrated by every former runner. A 90-minute walk at pace, with a weighted pack if you want to add load, replaces a 45-minute run for cardiovascular and mental benefit, with almost no injury risk. The pace will feel insulting for the first six walks. Then it stops feeling insulting.
• Hiking. The Saturday substitute. Three hours on a trail with elevation is harder than most runs you have ever done. Brings the social ritual back if your group is willing.

The other half of the rebalance, and the half most former runners miss, is in the gym. The reason your tendons are failing is partly that the surrounding muscle has not been strong enough to share the load. Two sessions of lifting a week, focused on legs and posterior chain, will do more for the next ten years of your physical life than any return-to-running plan. Lift more. Run less. (Or, in my case for the next six months, run not at all.)

The permanent shift, when it comes

For some men the shift is temporary. The plantar fascia heals, the strength comes back, and at 54 they are running again, slower, fewer days, and the body holds. For others, the shift is permanent. The cartilage in the knee, the disc in the lower back, the chronic Achilles, the cumulative damage of forty years of impact, none of these are going to reverse. The runs are over.

If you are in the second group, the worst thing you can do is keep attempting the comeback. Each failed return costs another six months and another small piece of the body. The best thing you can do is the one most former runners refuse to do for years, which is to formally close the chapter. Donate the racing shoes. Take yourself off the Saturday group's chat. Buy the bike, or the swim membership, or the rowing machine. Mark the change.

I have not yet decided which group I am in. The plantar fascia is two months in and finally walking without pain. The physio is optimistic about a return at reduced volume. The honest part of me, sitting with this on a Tuesday morning, suspects the days of 60-kilometre weeks are not coming back. There will be runs. There will not be the running life.

That is not a small thing. It is also not a whole thing. The body has thirty more years of motion in it. Most of those years will not be the years I had imagined, and some of them will be better.

The shoes go in the cupboard. The bike comes out of the shed. The body keeps moving, just differently.