You do not need an hour: the minimum dose

The single most common reason men give me for not training is time. It is also the one I have the least patience with, and not because I think they are lying. They are not lying. They genuinely believe that if they cannot get to a gym for an hour, five or six days a week, there is no point starting.

That belief is wrong, it is expensive, and the fitness industry built it on purpose.

Less than you think, and the study that established it is worth knowing about in detail.

In 2016 a team at McMaster University led by Jenna Gillen and Martin Gibala took 27 sedentary men and split them into three groups for twelve weeks. One group did 45 minutes of continuous moderate cycling, three times a week. Another did sprint interval training: three all-out 20-second sprints inside a session that totalled ten minutes including the warmup and cooldown, also three times a week. A third did nothing.

That is 60 seconds of hard work per session against 45 minutes of steady work. Five times less total exercise time.

After twelve weeks, both training groups had improved their peak oxygen uptake and their insulin sensitivity by similar amounts. Not identically, but similar enough that the researchers put it in the title of the paper.

I have been coaching for close to thirty years and that result still reorganises how I think about a man's week. It means the honest answer to "I only have fifteen minutes" is not "then it will not work." It is "then use the fifteen minutes."

Here is where most articles quoting that study stop, and where I have stopped in the past, which I regret.

Sprint interval training is not equivalent to endurance training across the board. It matches it on cardiorespiratory fitness and glucose control. It does not match it on everything. A later trial comparing endurance and sprint training found both improved glycemia and VO2peak, but only the more frequent endurance work improved blood pressure and blood lipids.

So the accurate version is more specific and more useful than the headline. Short, hard intervals buy you fitness and insulin sensitivity very cheaply. They do not buy you the full cardiovascular package. If your blood pressure or your cholesterol is the thing your doctor is watching, volume still matters and you need the walking as well.

Two more caveats I am not going to bury.

Those studies were done in sedentary but healthy men. All-out sprinting is a genuinely high-intensity stimulus, and if you are over 40, carrying extra weight, and have not done anything hard in five years, the intelligent order is a conversation with your doctor, then eight weeks of easier work, then intervals. Not intervals on Monday because you read an article on Sunday.

And these were cycling protocols. A stationary bike is very hard to hurt yourself on. All-out sprinting on your feet, on a road, at 47, with a decade of sitting behind you, is how men tear calves and Achilles tendons.

Here is the whole thing. It fits in about three hours, and most of it is not in a gym.

This is the part of my method that sounds soft and is not.

The best training experiences of my life have not been in gyms. They have been on trails, in the rain, on obstacle courses, and once standing on top of the Squamish Chief looking down at the valley and having the distinct sensation of my own problems getting smaller.

There is research on this and it is better than I expected when I first went looking. Work from Dacher Keltner's lab at Berkeley, including Piff and colleagues' 2015 studies on awe and prosocial behaviour, found that experiences of awe reduce self-focus, the small self effect, and produce measurably more generous and ethical behaviour afterward. And roughly three quarters of the time, the thing that induces awe in people is nature.

I am not going to tell you that a trail run cures anything. What I will tell you, after nearly thirty years of watching men try to get their health back, is that the ones who succeed almost always find something they actually want to go and do, and that the outdoors supplies that more reliably than a treadmill does. A man who has entered an obstacle race in October trains in August. A man with a gym membership and good intentions does not.

If you want the specific version: pick an event, five or six months out, that mildly frightens you. A mud run, a trail half, a long hike with real elevation. Then train for it outdoors, in whatever weather you get, with at least one other person. Do not run on a track. Find hills.

I wrote the first version of this argument as a newspaper column in 2016, and three things in it have not aged well.

I leaned on market-size statistics about the obesity industry to make a rhetorical point. They were a decade old the moment I published them and they were doing no work except making the piece sound authoritative. Gone.

I recommended specific brands of jerky and protein bars and a specific clothing company, without disclosing whether those were commercial relationships. I do not remember which ones were, which is exactly the problem. Nothing on this site recommends a product I have not paid for myself, and anything that is a paid relationship gets labelled.

And I framed intervals as a replacement for everything else. They are not, and the section above says so now.

There is no pill. There was never going to be a pill.

But the useful thing about the last decade of research is that the honest prescription got smaller rather than larger. It is two strength sessions, a decent amount of walking, and four minutes of being uncomfortable if you feel like it. That is not a compromise version for busy men. That is close to the whole evidence base for a man who wants to be strong and metabolically healthy at 60.

You do not need an hour. You need to stop waiting for one.