The death of ex-SAS officer and former rental soldier Simon Mann of a heart attack at the age of 72 last week, reportedly while exercising on an indoor rowing machine, is not the first to be related to strenuous exercise and gym machines.
The husband of Facebook’s then Chief Operational Officer, Sheryl Sandberg, died while running on a treadmill in 2015 car reasons suggested that Dave, only 47, had a non-diagnosed heart arithm’s, which can make him fall during exercise, which led to a deadly main injury.
In 2013, the broadcaster and journalist Andrew Marr suffered a great stroke while he trains ‘powerfully’ on a rowing machine. The moment his family was told that he might not make it – he has since achieved a remarkable recovery, although his left arm and leg are still being hit.
While Simon was in his eighth decade when he died, an old friend and business partner of the Oude Etonian, Howard White, described his death as ‘shocking’. “Simon was super fit. He went out in the morning for a run of ten miles, “he said.
Nevertheless, experts explain that people of all ages, many of whom apparently were fit and healthy, can suddenly collapse during workouts with high intensity.
Last week ex-SAS Officer and former Jailbird-Renting Simon Mann, left, died of a heart attack at the age of 72, reportedly while exercising on an indoor rowing machine
‘Hoewel de dood tijdens de lichaamsbeweging zeldzaam is en al het bewijs aantoont dat lichaamsbeweging overweldigend goed is voor de cardiovasculaire gezondheid en helpt bij het stimuleren van de levensduur, zijn inspannende trainingen gekoppeld aan een verhoogd risico op dodelijkheid – vooral bij degenen die een geschiedenis van hartproblemen of risicofactoren hebben die het risico op coronaire slagaderziekte zoals roken of obesity hebben,’ verklaart Michael, a consultant cardiologist at the Royal Surrey County Hospital.
An obvious cause is a heart attack when a coronary artery is blocked and the heart muscle starts to die. In middle -aged and older adults, the most common cause of sudden cardiac death related to exercise is an accumulation of plaque in the arteries, according to a 2020 study by the American Heart Association.
Perhaps not surprising, men who were not used to exercising were the most risk. It seems like a powerful exercise, if you have cardiovascular disease, a heart attack may cause it by increasing the ‘pure stress’ on the plaque, which can break down and block the arteries in the heart, Dr. Chris Pepper from, a consultant cardiologist and electrophysiologist at Leeds Teaching Hospitals NHS Trust.
Stringing exercise can also cause cardiac arrest when the heart of a person stops pumping blood around his body and they stop breathing. Data from the Charity Resuscitation Council UK shows that one in 217,000 people per year suffers a sports -related sudden death because of a cardiac arrest.
Very fit people who regularly practice high intensive endurance, such as rowing or running, can run a more risk of cardiac arrest, according to an assessment from 2024 in the magazine EP Europace, possibly because they have larger, thicker hearts of sports that disrupts the natural pacemaker of the heart.
Another possibility, reported researchers in the European Heart Journal in 2015, is that long -term powerful exercises can change the electrical activity of other normal hearts. When the heart is under pressure during exercise, these changes can lead to the electrical system wrong.
Yet it is not only the superfit-one trigger for problems with the electrical signals from the heart is hypertrophic cardiomyopathy, where the heart muscle becomes thick, so that the blood cannot pump so effectively and is susceptible to heart rate problems (ventricular arrhythmia). The risk of this can be increased by strenuous exercise, says Dr. Hickman.
Viral infections in the heart are an important cause of cardiomyopathy. But you also run the risk of an unhealthy lifestyle and stress.

The husband of former Facebook Chief Operating Officer Sheryl Sandberg died while running on a treadmill in 2015

Data from the Charity Resuscitation Council UK shows that one in 217,000 people per year suffers a sports -related sudden death because of a cardiac arrest (photo set by model)
Another possible cause is the tearing of arteries that deliver the heart or brain. Andrew Marr turned out to have had a tear in his carotid artery (neck) artery. “Arterial dissection usually reflects an underlying deviation from the barrel that is sometimes genetic,” says Dr. Pepper. “It is also more likely in people with high blood pressure.”
So do certain people have to avoid these kinds of intense exercises?
Fortunately, it is generally a sudden cardiac death during exercise rare – which affects between 0.31 and 2.1 people per 100,000 a year. Dr. Hickman points out that practice is recommended for everyone, including people with a history of heart problems.
The key is ‘know your limits and do not exaggerate’. Unfortunately, he says, many people with underlying health problems may not know that they are at risk, because the problems have never been diagnosed: “The first time they know that there is a problem is when they collapse.”
As we get older, our arteries get thicker, heart valves become stiff and less elastic and there is wear in your body that you can’t see, Sammy Margo adds, a sports physiotherapist based in London.
Dr. Hickman, who takes care of members of Elite Sportteams, including McLaren Racing and Harlequins Rugby Football Club, says: “Those who consider taking exercises of all types older than 50 must consider finding medical advice and checking their blood pressure, because high blood pressure can contribute to the risk of serious health events.”
Ruth Goss, a senior heart nurse for the British Heart Foundation, says that it is always a good idea to build up slowly when you are new to exercise before you do something strenuous. “And if you already have a history of heart problems, or are worried about your heart health, ask your doctor if there is a certain advice to follow in terms of safe exercise,” she says.
Nobody says that people have to stop using rowing machines.
“Rowing is an excellent training that, when done correctly, offers enormous benefits at the right pace for the individual,” says Sammy Margo. Unfortunately, some people can set themselves unrealistic goals and push themselves for too long. “And there is an element of competition with these machines that give you constant feedback.”
Moreover, older men and women who have always been very fit can suffer from ‘athletic identity’, she adds.
‘This happens when people who are in the middle and later age, link their former performance levels to who they are, and find it difficult to accept that they have to slow down.
“It can be even worse for those who are trained to develop psychological toughness and who can ignore warning signals that they push their bodies too hard.”
She advises the elderly beyond their physical peak to think about maintaining a healthy training routine, ‘but consider less strenuous alternatives, including swimming and cycling’.
Howard White, who spoke after the death of his friend Simon Mann, suggested that his fatal collapse was partly due to the ‘background of his life’.
“He had been to the SAS – the Creme de la Creme. But he had had two hip replacements and half of his body was full of metal. I don’t think five or six years in an African prison, with a hole in the ground for a toilet, did a lot of good. It would take a toll from someone’s health. ‘
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