Slumped posture will get the lumbar spine 'stuck forward' at certain segments so that when you are manipulated the relief may be from those spinal segments returning to normal motion; once you spend time slumped at the computer and while riding, the segments will get stuck forward again; yes, sit with support behind your low back, unless you can 'balance' your spine - meaning hold a neutral posture without significant muscle contraction to hold you there a la kneeling chairs; pay attention also to the ergonomics of your desk - ideally sit in neutral posture, with feet on floor, your eyes looking straight ahead should align with the top of your monitor (generally speaking) and your arms should rest comfortably on the keyboard with it tilted slightly AWAY from you. If you are like my 16 year old son, your posture is horrible!! Pull your shoulders back, do plenty of lumbar extension stretches both lying face down and standing; look up iliopsoas stretches/hip flexor stretches as your prolonged sitting and biking will tighten these and also limit upright posture; the lumbar extension stretches will also help to control your bulging disc; not likely to need any surgery unless you have marked weakness/pain in the legs, or loss of bowl/bladder control - take this advice with a grain of salt but i hope this gets you thinking - SN






 
			
			 
							 
					
					
					
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