Posted: 12:22 GMT, Jan.. December 2020 | Updated: 13:42 GMT, Jan.. December 2020
Australian researchers have found a link between poor hand grip and hypoxemia – low levels of oxygen in the blood.
The experts rated middle to elderly men for hand grip strength and blood oxygen saturation while measuring fat and body mass and correcting lifestyle information such as diet, smoking status, and physical activity.
They found a link between low blood oxygen saturation and weaker grip strength, regardless of whether their muscle mass was high or low.
The experts suggest that a slight grip could be a tell-tale sign of hypoxemia, which affects heart and brain function by not supplying enough oxygen to organs.
Regardless of muscle mass, a poor grip can highlight the underlying problems associated with hypoxemia (lack of oxygen in the blood).
While the study showed a link between the two factors, « causality cannot be established, » meaning that it is not certain that hypoxemia is more likely to cause a slack grip.
« While my study examines grip strength, it does not show that people are likely to suffer from poor health and die early in later life (although there are several studies that support this), » says study author Dr. David Stevens of Flinders University in Adelaide, South Australia, told MailOnline.
‘Rather, my study shows that worsening hypoxemia is associated with decreased grip strength regardless of a man’s muscle mass. ‘
Reduced handgrip strength is already linked to increased severity of a number of chronic conditions, including cardiometabolic conditions and chronic obstructive pulmonary diseases.
For this new study, the researchers originally tried to determine relationships between hand grip strength, muscle mass, fat mass and obstructive sleep apnea (OSA). .
OSA, a break in breathing during sleep, is a potentially serious sleep disorder and can itself cause hypoxemia by limiting oxygen uptake.
The researchers studied 613 men between the ages of 40 and 88 for Men, Androgen, Inflammation, Lifestyle, Environment and Stress (MAILES), a long-term sample conducted since 2009 to determine the risk of cardio-metabolic disease in men analyze.
They used an analog Smedley hand test stand – a small hand-held device with a dial – to measure the grip strength of the participants.
The experts also used a special type of X-ray called dual X-ray absorptiometry to determine muscle mass and fat mass throughout the body.
Researchers found that decreased grip strength was associated with lower oxygen nadir – the lowest oxygen saturation a patient drops to – and an extended period of time below 90 percent oxygen saturation.
Professor Robert Adams of Flinders University says no matter how much muscle mass, a simple grip test can reveal the underlying problems related to aging and the worsening of hypoxemia.
« Without good blood oxygen levels, we can’t get the most out of the muscles we have, » he said.
Dr. Stevens admitted that the fact that all participants were male was an « inherent limitation » of the study and means that the results may not apply to women.
Hypoxemia is a sign of a breathing or circulatory problem and can lead to a variety of symptoms, such as:. B.. Shortness of breath.
It is determined by measuring the level of oxygen in a sample of blood from an artery (arterial blood gas). .
It can also be estimated by measuring the level of oxygen in your blood with a pulse oximeter – a small device that attaches to your finger.
In order to continuously provide oxygen to the cells and tissues in your body, several factors are required:
– Your bloodstream needs to be able to circulate blood to your lungs, take in oxygen, and carry it around your body.
A problem with any of these factors – e.g.. B.. High altitude, asthma, or heart disease – can lead to hypoxemia, especially in more extreme conditions such as exercise or illness.
If your blood oxygen falls below a certain level, you may experience difficulty breathing, headache, confusion, or restlessness.
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