SALUZ Insight #002
The Sedentary Who Trains
With Álvaro Barroso, PhD · Exercise, Metabolism & Performance
One disciplined hour of exercise does not necessarily undo a working day designed around sitting.
#002
SALUZ Insight
Many executives protect one hour of their day with real discipline. They are at the gym before 7am, train several times a week and consider themselves active people. Then the working day begins: back-to-back meetings, hours at a screen, a car or a plane, and dinner at a table.
Álvaro Barroso has a name for this profile. In his conversation with SALUZ, he described people who spend an hour at the gym and consider themselves athletes, but then sit for ten hours in front of a computer. He calls them the sedentary who trains.
The idea is uncomfortable because it goes against a belief most professionals hold: that exercise makes up for everything else. The evidence suggests it only does so at a level of activity far higher than most people imagine.
What the evidence says
The clearest data comes from a meta-analysis published in The Lancet in 2016, led by Ulf Ekelund. It pooled data from more than one million men and women to answer one question: can physical activity cancel out the risks associated with sitting for long periods?
The answer was yes, but only at high doses. Around 60 to 75 minutes of moderate-intensity activity per day seemed to eliminate the increased risk of death associated with high sitting time. Among people in that most active group, sitting more than eight hours a day was not associated with a significantly higher risk than sitting less than four.
The flip side is the important part for organisations. Researchers at Oxford's Centre for Evidence-Based Medicine noted that the study suggests the WHO recommendation of 30 minutes of moderate-to-vigorous activity per day may not be enough to eliminate that risk. The professional who meets the standard guidelines and then sits for ten hours may still be exposed.
The authors themselves point to where this matters most: societies where increasing numbers of people have to sit for long hours for work.
Why muscle matters beyond fitness
Álvaro's point goes beyond mortality statistics. In his episode, he described muscle as more than something that moves us: it is an active organ that helps regulate glucose. When muscle is inactive for most of the day, one of the body's main systems for managing energy is working below capacity. A morning training session activates that system for an hour. The following ten hours of sitting largely switch it off again.
This is why the sedentary who trains is a useful concept for organisations. The question is no longer whether people exercise. It is how much of the working day keeps the body in a state of inactivity, and who designs that day.
A design problem, not a willpower problem
Most of the sitting in a professional's day is not a personal choice. It comes with the job: how meetings are run, how long they last, where work happens and how people travel. An executive can control a morning session. They rarely control the architecture of the eight or ten hours that follow.
If long sitting is built into how work is organised, part of the answer has to be built in the same way. This includes how meetings are structured, whether movement fits naturally into the day, and whether the culture treats standing, walking or stepping away as normal rather than as disengagement.
Leaders set the default
Álvaro made a second point that applies directly to leadership. When a leader does not practise healthy habits, that permeates downwards. Seeing a leader who is fit and composed is itself a form of leadership. People learn by imitation, not by being lectured.
A leader's relationship with movement is not entirely private. The way they run meetings, whether they take a call on foot, and how they manage their energy during a long day are signals their team reads and copies. Formal policies say one thing; the leader's behaviour sets the actual norm.
What this means for organisations
The sedentary who trains is not a failure of individual discipline. It is what happens when people who care about their health work inside days designed for stillness. Recognising this changes the questions leaders ask:
- How much of our working day is spent sitting, and how much of that is really necessary?
- Does our meeting culture leave room for the body, or only for the screen?
- What do our leaders' habits teach their teams without a word being said?
These are organisational questions. At SALUZ, we believe they belong in Executive Education, because the capacity to think, decide and lead depends on a body that has not been switched off for most of the day.
A note on the evidence
The Lancet meta-analysis is observational: it shows associations, not cause and effect. Physical activity was mostly self-reported, and the outcome measured was mortality, not cognitive or professional performance. The link between muscle activity and glucose regulation is well-established physiology, but the specific effects on workplace performance need further research.