As obese subjects have a higher risk to develop abnormal changes in the morphology and function of the heart, this study aimed to assess whether a Combined or Concurrent Training protocol - strength training plus aerobic training performed in the same session -, lasting 24 weeks, would cause beneficial structural and functional adaptations in the heart of obese middle-aged men. To this end, we use conventional echocardiography and Doppler analysis pre and post the of training or control period.