Southern France-style Pan-fried Tuna Steak

Ingredients

4 tuna steaks, about 2.5 cm thick (175-200 g each)
2-3 tbsp olive oil
3 or 4 garlic cloves, finely chopped
4 tbsp dry white wine
3 ripe plum tomatoes, peeled, seeded and chopped
1 tsp dried herbes de Provence
salt and freshly ground black pepper
fresh basil leaves, to garnish

Method

  1. Season the tuna steaks with salt and pepper. Set a heavy frying pan over a high heat until very hot, add the oil and swirl to coat. Add the tuna steaks and press down gently, then reduce the heat to medium and cook for 6-8 minutes, turning once, until just slightly pink in the centre.
  2. Transfer the steaks to a serving plate and cover to keep warm. Add the garlic to the pan and fry for 15-20 seconds, stirring all the time, then pour in the wine and boil until it is reduced by half.
  3. Add the tomatoes and dried herbs and for 2-3 minutes until the sauce is bubbly. Season with pepper pour over the fish steaks. Serve, garnished with fresh basil leaves.

Makes 4 servings.

Source: French Cuisine

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Exercise May Reverse Age-Related Bone Loss in Middle-Aged Men

Weight-lifting and jumping exercises improved bone density, could decrease osteoporosis risk.

Men gradually lose bone mass as they age, which puts them at risk for developing osteoporosis, a condition that makes bones weak and prone to breakage. Nearly 2 million men in the U.S. have the condition, and 16 million more have low bone mass, studies have shown. Now, University of Missouri researchers have found that certain types of weight-lifting and jumping exercises, when completed for at least six months, improve bone density in active, healthy, middle-aged men with low bone mass. These exercises may help prevent osteoporosis by facilitating bone growth, according to the study published in Bone.

“Weight-lifting programs exist to increase muscular strength, but less research has examined what happens to bones during these types of exercises,” said Pam Hinton, an associate professor and the director of nutritional sciences graduate studies in the MU Department of Nutrition and Exercise Physiology. “Our study is the first to show that exercise-based interventions work to increase bone density in middle-aged men with low bone mass who are otherwise healthy. These exercises could be prescribed to reverse bone loss associated with aging.”

Hinton and MU colleagues Peggy Nigh and John Thyfault studied 38 physically active, middle-aged men who completed either a weight-lifting program or a jumping program for a year. Both programs required participants to complete 60-120 minutes of targeted exercises each week. The participants took calcium and vitamin D supplements throughout their training programs. The researchers measured the men’s bone mass at the beginning of the study and again at six and 12 months using specialized X-ray scans of the whole body, hip and lumbar spine.

The researchers found the bone mass of the whole body and lumbar spine significantly increased after six months of completing the weight-lifting or jumping programs, and this increase was maintained at 12 months. Hip-bone density only increased among those who completed the weight-lifting program.

Hinton said the study results do not indicate that all kinds of weight lifting will help improve bone mass; rather, targeted exercises made the training programs effective.

“Only the bone experiencing the mechanical load is going to get stronger, so we specifically chose exercises that would load the hip and the spine, which is why we had participants do squats, deadlifts, lunges and the overhead press,” Hinton said. “Also, the intensity of the loading needs to increase over time to build strength. Both of the training programs gradually increased in intensity, and our participants also had rest weeks. Bones need to rest to continue to maximize the response.”

Throughout their training programs, participants rated pain and fatigue after completing their exercises. The participants reported minimal pain and fatigue, and these ratings decreased over the year. Hinton said individuals who want to use similar training programs to improve bone density should consider their current activity levels and exercise preferences as well as time and equipment constraints.

“Individuals don’t typically have to know they have heart disease, high blood pressure or prediabetes to start exercising – they do it as prevention,” Hinton said. “Similarly, individuals don’t have to know they have osteoporosis to start lifting weights. The interventions we studied are effective, safe and take 60-120 minutes per week to complete, which is feasible for most people. Also, the exercises can be done at home and require minimal exercise equipment, which adds to the ease of implementing and continuing these interventions.”

Source: University of Missouri


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