The ‘Popular’ sitting position (on the right)
This means for a right handed guitarist your guitar would be on your right leg. Here are the 4 arrows explained.
- The right shoulder is elevated which can cause neck problems
- The left shoulder is lower then the right which means the spine is twisted
- Because of the positioning the left wrist is bent which can cause carpal tunnel
- The right arm is pressing down on the guitar often cutting into the nerve which can cut off circulation to the right hand
The severity of problems depends on how much you play guitar but better to be safe than sorry. Everyone is free to choose what suits their personal choice but just for the record many of the elite rock players are now turning to the classical position simply because the difficulty of what they play demands it. A good example is John Petrucci of Dream Theater and G3. Check his video ROCK DISCIPLINE and notice how he sits.