Are your genes stopping you from getting a six-pack?

One in six of us is genetically disposed to gain little or no benefit from exercise. Still waiting for his six-pack, Patrick Strudwick took a test to find out if he's among them

The equation is simple: the more exercise you do, the fitter you become. The message has been pumped into us by government campaigns, shouty PE teachers and celebrities on the make. NHS guidelines state we should be doing 150 minutes of moderate exercise or 75 minutes of vigorous exercise a week – a one-workout-fits-all regime.

We've watched some of our greatest screen legends flex and pant – Olivia Newton-John, Jane Fonda, Natalie Cassidy – to tempt us into training. All the while we've become fatter, slower and lazier as morbid obesity spills out of our waistbands and into our hospitals.

And for those who have failed to get fitter? Guilt. Shame. Blame. Because the fitness dream is unlike all other human strata: it's meritocratic. You get out what you put in. Anyone could have Madonna's body if they just rolled off the sofa and on to a treadmill. All of this, it transpires – thanks to a new genetic test – is guff: not just simplistic and unfair on those who don't have the resources to exercise, but scientific mumbo-jumbo.

The test, called XRPredict, costs £199 and has been developed by Dr Jamie Timmons, professor of systems biology at Loughborough University, and is processed by his company, XRGenomics. He has isolated the genes responsible for your body's adaptations to aerobic exercise. In other words, how much fitter you become, which can be measured by how efficiently you transport oxygen from outside the body to the muscles within.

"About 10 years ago, we started trying to come up with diagnostics that explained the differences we saw when we trained people," explains Dr Timmons. "We were seeing huge variations in response to the same exercise programme."

By 2010 their findings had been patented. They make grim reading for the terminally unfit, the Department of Health and for personal trainers everywhere.

Approximately one in six of the general population are "high responders" – following the NHS guidelines, for example, will spark a marked increase in fitness levels, of about 25-50 per cent. One in three are "medium responders", who'll enjoy a 15-25 per cent boost in aerobic fitness. Another one in three are "medium-low responders", who'll only see a 5-15 per cent increase. But, shockingly, another one in six are "low responders", who, at the very most, will only see a 5 per cent rise in their fitness levels.

Most of these will see no improvement whatsoever – no matter how much time they spend sweating on a cross-trainer, they will never be fitter. Worse still, about a sixth of the low responders – 3 per cent of the general population – will actually become less fit. In other words, 1.8 million Britons are effectively allergic to exercise. How can this be?

"So far, the only explanation we have for this is that somewhere in their system, between the mouth inhaling air and the oxygen, probably in the periphery of the muscles, they're maladapting to exercise so that it becomes harder for them to get oxygen to the muscles," says Dr Timmons.

"The analogy with allergy is interesting as allergies are partly driven by inflammation and it's possible that that is one of the problems we have with these people."

Unfortunately, a solution has yet to be found. Dr Timmons suggests this maladaption could be due to the wrong form of exercise, or the wrong type of regime, and that another approach could prove beneficial. "We're not sure what to do yet," he says. "The solution could even be combining exercise with an anti-inflammatory drug.

Resistance training – using weights – could also be an option, "though we don't know yet whether this group would also be non-responders to building muscle," Dr Timmons says. "But there are many common features between aerobic and resistance training in terms of what's happening at a molecular level, which suggests to me a correlation. But we can't be sure yet."

Earlier this year, Dr Timmons and his team published an article about the biology of those who don't gain muscle tissue after a 20-week resistance-training programme. It's about 25 per cent of the population.

I decide to take the test – there must surely be an explanation for why each time I stick to a gym habit for several months I enjoy relatively minor gains and so eventually give up. There's a dreary form to fill out about my medical particulars, height and weight, current and former exercise habits, and a saliva sample (obtained by scraping the inside of my cheek with a swab) that I sent off to their lab.

Several weeks later, the results are in: I'm a "medium-low responder". My DNA is NBG. Thus, the chances of me making Rio 2016 are skeletally slim. According to the report, if I performed 20 weeks of training I would only see up to a 15 per cent improvement in fitness levels.

Should I bother?

"It depends on your goals. If vanity rather than aerobic fitness is your motivation [it absolutely is] then we suggest you try out resistance training, which will also reduce your chance of developing type 2 diabetes. Something like 10-15 minutes per day with a kettle bell."

What? That little? Do I not have to make horribly unflattering grimaces for at least an hour five times a week to make a difference?

"There's been a public health myth touted around that we've been evolved to be continually running around, which is based on very little science. If we were perpetually active, we would also be perpetually needing food, so the evolutionary strategy would be too inefficient – running around consuming as much as possible so that we can carry on running around. It makes no sense."

For those, however, who do want to make the most of their genes – as long as they're not low-responders – and reach the zenith of their capacity for aerobic fitness, the guidance is simple. "Train like a middle-distance athlete: high-intensity interval training."

But there's something else bothering me: I don't get the post-workout "buzz" that is often discussed around exercise. As well as differences in physical adaptations are there mental differences, too?

"It seems there are. Some show a robust improvement in mental health and some don't. The reason that message has got out there is partly because many of the trials use a self-selecting sample: in other words, the people who make themselves available for research into the effects of exercise are often people who enjoy exercising."

The key, he says, to all this, is not only to discover your genetic capacity and tailor your workout as best you can but, crucially, to follow the simplest and perhaps the most effective exercise advice of all: do something you enjoy.

xrgenomics.co.uk

Life and Style
ebookNow available in paperback
Latest stories from i100
Have you tried new the Independent Digital Edition apps?

ES Rentals

    Independent Dating
    and  

    By clicking 'Search' you
    are agreeing to our
    Terms of Use.

    iJobs Job Widget
    iJobs General

    Ashdown Group: UI Developer - (UI, HTML, CSS, JavaScript, AngularJS)

    £25000 - £40000 per annum: Ashdown Group: UI Developer - (UI, JavaScript, HTML...

    Ashdown Group: Graduate UI Developer - HTML, CSS, Javascript

    £25000 - £30000 per annum: Ashdown Group: Graduate UI Application Developer - ...

    Ashdown Group: B2B Marketing Manager - Events, Digital, Offline

    £45000 - £50000 per annum: Ashdown Group: B2B Marketing Manager (Events, Digit...

    Guru Careers: Senior Account Manager / SAM

    £30 - 35k: Guru Careers: A Senior Account Manager / SAM is needed to join the ...

    Day In a Page

    Is a quiet crusade to reform executive pay bearing fruit?

    Is a quiet crusade to reform executive pay bearing fruit?

    Dominic Rossi of Fidelity says his pressure on business to control rewards is working. But why aren’t other fund managers helping?
    The King David Hotel gives precious work to Palestinians - unless peace talks are on

    King David Hotel: Palestinians not included

    The King David is special to Jerusalem. Nick Kochan checked in and discovered it has some special arrangements, too
    More people moving from Australia to New Zealand than in the other direction for first time in 24 years

    End of the Aussie brain drain

    More people moving from Australia to New Zealand than in the other direction for first time in 24 years
    Meditation is touted as a cure for mental instability but can it actually be bad for you?

    Can meditation be bad for you?

    Researching a mass murder, Dr Miguel Farias discovered that, far from bringing inner peace, meditation can leave devotees in pieces
    Eurovision 2015: Australians will be cheering on their first-ever entrant this Saturday

    Australia's first-ever Eurovision entrant

    Australia, a nation of kitsch-worshippers, has always loved the Eurovision Song Contest. Maggie Alderson says it'll fit in fine
    Letterman's final Late Show: Laughter, but no tears, as David takes his bow after 33 years

    Laughter, but no tears, as Letterman takes his bow after 33 years

    Veteran talkshow host steps down to plaudits from four presidents
    Ivor Novello Awards 2015: Hozier wins with anti-Catholic song 'Take Me To Church' as John Whittingdale leads praise for Black Sabbath

    Hozier's 'blasphemous' song takes Novello award

    Singer joins Ed Sheeran and Clean Bandit in celebration of the best in British and Irish music
    Tequila gold rush: The spirit has gone from a cheap shot to a multi-billion pound product

    Join the tequila gold rush

    The spirit has gone from a cheap shot to a multi-billion pound product
    12 best statement wallpapers

    12 best statement wallpapers

    Make an impact and transform a room with a conversation-starting pattern
    Paul Scholes column: Does David De Gea really want to leave Manchester United to fight it out for the No 1 spot at Real Madrid?

    Paul Scholes column

    Does David De Gea really want to leave Manchester United to fight it out for the No 1 spot at Real Madrid?
    Season's finale brings the end of an era for top coaches and players across the continent

    The end of an era across the continent

    It's time to say farewell to Klopp, Clement, Casillas and Xavi this weekend as they move on to pastures new, reports Pete Jenson
    Bin Laden documents released: Papers reveal his obsession with attacking the US and how his failure to keep up with modern jihad led to Isis

    'Focus on killing American people'

    Released Bin Laden documents reveal obsession with attacking United States
    Life hacks: The innovations of volunteers and medical workers are helping Medécins Sans Frontières save people around the world

    Medécins Sans Frontières's life hacks

    The innovations of volunteers and medical workers around the world are helping the charity save people
    Ireland's same-sex marriage vote: As date looms, the Irish ask - how would God vote?

    Same-sex marriage

    As date looms, the Irish ask - how would God vote?
    The underworld is going freelance: Why The Godfather's Mafia model is no longer viable

    The Mafia is going freelance

    Why the underworld model depicted in The Godfather is no longer viable