Why do chilblains occur in COVID-19?

The COVID-19 epidemic which is travelling across the world is throwing up some oddities in the clinical manifestations that seem to vary from person to person as well as in various areas. Several organ systems might be affected in a different way in various amounts in different individuals. We have seen numerous stories in the mass media and in the professional medical periodicals of a range of distinct skin conditions in individuals infected with coronavirus. One of the peculiar ones that has been given some awareness within the media is the way more and more of those with COVID-19 are developing chilblains, especially kids and people who wouldn't commonly develop these. Chilblains are usually quite prevalent anyway in the colder environments. The earliest accounts of these chilblains in people that have COVID-19 was during the wintertime in Spain and Italy, so that you might expect a number of people to get them at any rate. Subsequent investigation focused on if these were only an incidental finding or if COVID-19 was really causing the chilblains and they are part of the pathophysiological process of the problem. Its still unknown currently which one is likely to be the problem.

An instalment of the podiatry relevant livestream, PodChatLive hammered out this condition on chilblains in COVID-19 and also the character of the phenomenon. The hosts of the episode talked about the problem with Nadia Dembsky, a podiatric doctor from South Africa who has a specific curiosity about this topic and who is considering pursing a PhD on the topic. In the episode, they did specifically talk about the difficulties regarding if the chilblains are a part of the disease process of the COVID-19 or maybe if they are just standard everyday chilblains that are merely more prevalent in those infected by the coronavirus. This event of PodChatLive ended up being broadcast live on Facebook and also the revised edition of the show is uploaded to YouTube, as well as an audio version on the usual podcast websites.

 

What is overpronation of the foot?

Overpronation is a word that causes lots of angst among podiatric doctors and running shoe retailers mainly because it brings about a whole lot of misunderstandings and argument. Pronation is really a movement of the foot where the ankle rolls inwards and the arch of the foot collapses. This is a normal healthy movement which is necessary for normal foot biomechanics and impact moderation. Overpronation is meant to be the phrase useful to explain if you have an excessive amount of this normal pronation. The first part in the controversy is precisely what is normal what is actually abnormal and exactly where may be the threshold of the division between normal pronation and overpronation. You can find formidable opinions on every side of this debate and there doesn't appear to be any solution in the discussion in the near future.

The reason the subject creates a huge amount of debate is that overpronation has been thought to be a key aspect in overuse injuries in runners. Podiatrists commonly use foot supports to treat the problem and running shoe manufacturers make running shoes to help athletes who have the condition. This suggests there is lots of vested interest in it. The problem arises is that the scientific evidence shows that, yes, overpronation generally is a risk factor for a running injury, but it is not really a big risk factor. It can be even more complicated by a lot of athletes who have fairly severe overpronation and never develop any issues and do not need foot orthoses or running shoes with the motion control design features. That will not help fix the controversy nor help clinicians make judgements re foot supports and for running shoe retailers on advice as to what ought to be the right running shoe. It really comes down to clinicians and running shoe retailer’s individual experience and expertise and making choices in the framework of what exactly is ideal for the individual runner.