Next time you go to get a massage, and you are experiencing 'mid-back' tension, you might request specific work on the following muscles: 
Should your therapist desire additional techniques to relieve stress in these and other muscles, I suggest you refer them to visit us here at musclemanagement.com
Should your therapist desire additional techniques to relieve stress in these and other muscles, I suggest you refer them to visit us here at musclemanagement.com