High intensity exercise `beneficial and safe` for cardiac patients
“For the past 10 to 12 years we have become incredibly proficient at the counter-insurgency mission that we have been fighting in Afghanistan,” NATO’s military commander, U.S. Air Force Gen. Philip Breedlove, told a news conference. If NATO were ever called on to defend an alliance member, “we have to be prepared for the more high end of military operations,” he said, speaking at a NATO headquarters at Brunssum in the Netherlands on Wednesday. The exercise calls for NATO forces to oust an invader. Breedlove denied it was aimed at repelling a hypothetical Russian invasion.
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K. G. Jebsen from Center of Exercise in Medicine at the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway, analyzed data from four randomized, controlled trials conducted at the centre to try to determine what characterized the most effective high-intensity training programme for this patient group. The researchers used changes in VO2max, which is peak oxygen uptake, as a measure of the effectiveness of the different exercise regimes The exercise period lasted for 12 weeks. The participants ran or walked on treadmill, walked uphill outdoors or trained in a group, all following the 4×4 exercise model. The 4×4 exercise model involves 4 minutes of high-intensity exercise followed by 3 minutes of moderate-intensity exercise, repeated 4 times. Lead author of the study, Trine Moholdt, said that when they compared VO2max before and after the training period, they found that the number of training sessions, the subject’s age or baseline fitness levels had no impact, however the intensity of the intervals had a significant effect, and seemed to be the most important characteristic of an effective interval session.
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Exercise May Prevent Stress and Anxiety, Study Suggests
“We found that exercise helps to buffer the effects of emotional exposure. If you exercise, you’ll not only reduce your anxiety, but you’ll be better able to maintain that reduced anxiety when confronted with emotional events.” The researchers compared the effects of 30-minute periods of quiet rest and moderate-intensity cycling on the anxiety levels of healthy college students. The students’ anxiety levels were measured before the 30-minute stints of exercise or rest, and reassessed 15 minutes afterward. Their anxiety was gauged a third time after they were shown an array of both neutral and highly stimulating photographs. All students completed both the rest and exercise versions of the test. The study revealed that both exercise and quiet rest initially eased participants’ anxiety.
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