What’s new in the news

Strength Training and Type 2 Diabetes

1 in 3 people will be afflicted with the precursor to type 2 diabetes, which is called impaired glucose metabolism (IGM). Those with IGM are at risk of developing type 2 diabetes.
Traditionally the mainstay for managing and preventing IGM has been through cardiovascular exercise. Research is now showing that strength training is also highly beneficial.
Karl Minges and David Dunstan, “Strength training lower risk of impaired glucose metabolism at the population level”, Sports Medicine Bulletin, ACSM, 2013
Head Injuries in Football
There has been a lot of media attention on the acute and chronic effects of concussion, including multiple concussions and sub-concussions (head impact without concussion) leading to neurodegenerative disease.
The science and evidence in this area of sports medicine is lagging and there are a lot of unknowns in what is turning out to be an extremely complicated problem, where additional factors such as diet, genetics, exercise etc also plays a role.
A US study of high school football players showed that as game plays changed so did the number and intensities of impacts. Ie. a play which involved less contact, may actually involve higher velocity impacts, while plays with more impacts had lower velocity impacts.
Given the little knowledge that is known about the link between head injuries and neurodegenerative disease many of the knee jerk reaction changes to protect players may actually not be as effective as intended.
Steven P Broglio and Douglas Martin, “Counting head impacts in football”, Sports Medicine Bulletin, ACSM, 2013