This is in answer to your two questions, the 1st being the soreness you have been experiencing. You didn't say how long you have been lifting or the amt of weight and reps! Yes your back may be bothering you do to standing, and it could also come from lifting, especially if you are not resting and letting the muscles repair themselves. This is why I only lift every other day! The amt of calories burned is also hard to say as it depends on whether you are lifting low reps or fast reps. If you just started lifting you will gain weight since muscle weighs more than fat! I gained 10 lbs when I started back up! When I was younger I was a body builder, but now I just strength train! To get an idea of where you are, purchase a scale that has more than just weight readings, I have one that does my BMI, my water intake, my body fat content etc. This will keep you on track! I use this weekly on the same day around the same time, it's a ritual! Once a month a chart my measurements for change, and I build my routine from these results of my hard work! Hope this helps
The Content on this Site is presented in a summary fashion, and is intended to be used for educational and entertainment purposes only. It is not intended to be and should not be interpreted as medical advice or a diagnosis of any health or fitness problem, condition or disease; or a recommendation for a specific test, doctor, care provider, procedure, treatment plan, product, or course of action. MedHelp is not a medical or healthcare provider and your use of this Site does not create a doctor / patient relationship. We disclaim all responsibility for the professional qualifications and licensing of, and services provided by, any physician or other health providers posting on or otherwise referred to on this Site and/or any Third Party Site. Never disregard the medical advice of your physician or health professional, or delay in seeking such advice, because of something you read on this Site. We offer this Site AS IS and without any warranties. By using this Site you agree to the following Terms and Conditions. If you think you may have a medical emergency, call your physician or 911 immediately.