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Running doesn’t have to be such a pain in the knee

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The knee is a runner’s most vulnerable joint, so don’t wait until an injury progresses to the point that it forces an extended road to recovery.

For runners suffering from their first knee injury, there’s no shortage of advice about the best way to nurse their knee back to health. But what most runners really want to know is how long it will take before they can get back to pounding the pavement. Will a few days of rest do the trick, or can they expect the pain to stick around for weeks?

Knee injuries are so common among runners that the topic has warranted a respectable amount of interest from researchers, with one study suggesting it takes 75 to 88 days to recover from chronic knee pain. There are two primary locations for running-related knee injuries: around the kneecap (patellofemoral syndrome) or along the side of the knee (iliotibial band syndrome). Much of the blame for runners’ knee pain falls to overuse — too many miles and not enough rest. But there’s actually lots of blame to go around, including biomechanical or structural abnormalities and the favourite among the over-45 set: age-related wear and tear.

In an attempt to find out more about runners and their knees, a group of researchers from the Netherlands reached out to novice runners registered for three popular road races, involving distances from five to 42 kilometres. Questionnaires were distributed before the race, one day after the race and again one month later. The initial query gathered baseline information: age, weight and height, along with training frequency, experience, running speed, average weekly mileage and training surface (pavement, concrete). Runners were subsequently grouped based on their experience (zero to four years, four to 10 years and more than 10 years) and average mileage (zero to 15 km, 15 to 30 km and more than 30 km).

Anyone who reported a knee injury — which was defined as any musculoskeletal complaint of the knee that restricted training frequency, distance, speed or duration for at least a week or that needed consultation with a medical professional — was included in the study. Injured runners were asked about the severity of pain at rest and while running, how long it took for the pain to subside and their diagnosis (self-diagnosis or that offered by a medical professional) as to the type of knee injury. Information was also collected about how they managed pain, whether they consulted a health-care professional and what type of treatment plan, if any, they employed.

Fourteen per cent (277) of the 2,000 runners who responded to the initial query by the research team reported experiencing a knee injury sometime after competing in the road race for which they were registered. Males who ran twice a week totalling an average of 2.5 hours at a 6.0 min/km pace were the most likely to be injured. More than half of everyone with knee pain either modified their training frequency or their speed as a consequence of the injury.

Most of the runners recovered within eight weeks of first experiencing pain, but one-third claimed to fall short of full recovery up to a year later. Males recovered faster than females, with women taking, on average, two weeks longer to heal. As for what type of injury was the slowest for recovery, osteoarthritis of the knee earned the dubious honour of keeping runners laid up the longest.

“This association is in line with the fact that knee osteoarthritis is a chronic progressive condition and a major cause of musculoskeletal disability in older populations,” said the study’s authors.

What does all this mean to the average recreational runner?

First of all, knee pain happens at one time or another to almost all runners, so don’t fret. But what’s worth noting in this study is that once pain sets in, it can be weeks before the knee feels better. And despite attempts to dial back speed, distance or training frequency, there’s no proven shortcut to healing.

The key to keeping the knee healthy, especially among novice runners, is to avoid that first bout with pain by following a progressive training routine that errs on the conservative side when it comes to volume and frequency. If and when pain does flare up, treatment guided by a medical professional is worth considering. And while there’s no guarantee that your time on the mend will be reduced, education on the best path to recovery and advice on how to ease back into running are investments worth making.

“The relatively long duration of knee symptoms after an injury emphasizes the need for optimal treatment, education and injury prevention programs for recreational runners,” said the researchers.

The knee is a runner’s most vulnerable joint, so don’t make the mistake of waiting until the injury progresses to the point that it forces an extended road to recovery. Early diagnosis and treatment are the keys not just to getting back up to speed, but to years of pain-free running.

Source: – Cochrane Times Post

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Britain in talks with 6 firms about building gigafactories for EV batteries

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Britain is in talks with six companies about building gigafactories to produce batteries for electric vehicles (EV), the Financial Times reported on Wednesday, citing people briefed on the discussions.

Car makers Ford Motor Co and Nissan Motor Co Ltd, conglomerates LG Corp and Samsung, and start-ups Britishvolt and InoBat Auto are in talks with the British government or local authorities about locations for potential factories and financial support, the report added .

 

(Reporting by Kanishka Singh in Bengaluru; Editing by Himani Sarkar)

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EBay to sell South Korean unit for about $3.6 billion to Shinsegae, Naver

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EBay will sell its South Korean business to retailer Shinsegae Group and e-commerce firm Naver for about 4 trillion won ($3.6 billion), local newspapers reported on Wednesday.

EBay Korea is the country’s third-largest e-commerce firm with market share of about 12.8% in 2020, according to Euromonitor. It operates the platforms Gmarket, Auction and G9.

Shinsegae, Naver and eBay Korea declined to comment.

Lotte Shopping had also been in the running, the Korea Economic Daily and other newspapers said, citing unnamed investment banking sources.

South Korea represents the world’s fourth largest e-commerce market. Driven by the coronavirus pandemic, e-commerce has soared to account for 35.8% of the retail market in 2020 compared with 28.6% in 2019, according to Euromonitor data.

Shinsegae and Naver formed a retail and e-commerce partnership in March by taking stakes worth 250 billion won in each other’s affiliates.

($1 = 1,117.7000 won)

 

(Reporting by Joyce Lee; Editing by Edwina Gibbs)

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Canada launches long-awaited auction of 5G spectrum

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Canada is set to begin a hotly anticipated auction of the mobile telecommunications bandwidth necessary for 5G rollout, one that was delayed more than a year by the pandemic.

The 3,500 MHz is a spectrum companies need to provide 5G, which requires more bandwidth to expand internet capabilities.The auction, initially scheduled for June 2020, is expected to take several weeks with Canadian government selling off 1,504 licenses in 172 service areas.

Smaller operators are going into the auction complaining that recent regulatory rulings have further tilted the scales in the favour of the country’s three biggest telecoms companies – BCE, Telus and Rogers Communications Inc – which together control around 90% of the market as a share of revenue.

Canadian mobile and internet consumers, meanwhile, have complained for years that their bills are among the world’s steepest. Prime Minister Justin Trudeau’s Liberal government has threatened to take action if the providers did not cut bills by 25%.

The last auction of the 600 MHz spectrum raised C$3.5 billion ($2.87 billion) for the government.

The companies have defended themselves, saying the prices they charge are falling.

Some 23 bidders including regional players such as Cogeco and Quebec’s Videotron are participating in the process. Shaw Communications did not apply to participate due to a $16 billion takeover bid from Rogers. Lawmakers and analysts have warned that market concentration will intensify if that acquisition proceeds.

In May, after Canada‘s telecoms regulator issued a ruling largely in favour of the big three on pricing for smaller companies’ access to broadband networks, internet service provider TekSavvy Inc withdrew from the auction, citing the decision.

Some experts say the government has been trying to level the playing field with its decision to set aside a proportion of spectrum in certain areas for smaller companies.

Gregory Taylor, a spectrum expert and associate professor at the University of Calgary, said he was pleased the government was auctioning off smaller geographic areas of coverage.

In previous auctions where the license covered whole provinces, “small providers could not participate because they could not hope to cover the range that was required in the license,” Taylor said.

Smaller geographic areas mean they have a better chance of fulfilling the requirements for the license, such as providing service to 90% of the population within five years of the issuance date.

The auction has no scheduled end date, although the federal ministry in charge of the spectrum auction has said winners would be announced within five days of bidding completion.

($1 = 1.2181 Canadian dollars)

 

(Reporting by Moira Warburton in Vancouver; Editing by David Gregorio)

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