IM MUSCLE RESEARCH Fatal Attractions Turn Up The Heat On Muscle A recent study conducted in Korea and published in the journal Aging Clinical and Experimental Research examined the muscle-building attribute of heat stress when combined with resistance training. Scientists split subjects into three groups. The first group subjected their legs to warming blankets. The second group did lower-body strength training, and the third group com- bined the strength training with the heat therapy. After 12 weeks, the third group experienced greater stimula- tion of anabolic hormones and improved their muscle strength and hypertrophy significantly greater than the other groups. Interestingly, the one-rep max and IGF-1 levels of all groups improved, but only the subjects who combined the weight training and the heat enjoyed significant muscle growth. Scientists believe that com- bining resistance training and heat stress stimulates the activation of something called “heat shock protein 72,” leading to greater muscle synthesis. 18 JUNE 2017 | ironmanmagazine.com The Skeleton Key Osteoporosis is commonly viewed as a problem that mostly affects women. However, considering that the condition affects some 200 million people worldwide, men also need to be concerned with their bone health. Researchers at the University of Missouri-Columbia recently completed the first study that shows that long-term weight-training promotes bone growth and bone density specifically in males. Scientists found that compound weighted exercises such as squats and lunges improved bone health in young active men, as did high-im- pact jump training. (Non-weight-bearing activities such as cycling and swim- ming did not improve bone density.) The study showed that the weight-training decreased the level of sclerostin, a protein that inhibits bone formation. The training also boosted levels of IGF-1, which triggers bone growth. This is just more evidence that shows that a fitness lifestyle, and specifically lifting weights, is something that can and should be followed for the rest of your life. IM BEGOVIC, If you are in a toxic relationship, you should know that the stress imposed by an unrea- sonable partner can be as deadly to your health as a diet full of nachos and Froot Loops. A Danish study published in the Journal of Epidemiology & Community Health tracked 10,000 people over a decade and interviewed them about the amount of stress in their relationships. Subjects with partners who were very demanding were more likely to die than those with more understanding loved ones. Men were particularly vulnerable to this phenomenon. The evidence suggest that men respond to stress by releasing more cortisol, which negatively impacts their health. If your health and fitness is a priority for you, make sure your love life and relation- ships are strong and supportive.