A great pre-workout supplement can take your training to a new level. A bad one and trust us, they're out there will waste your time and money. We show you how to tell the difference. Pre-workout supplements represent one of the bestselling and fastest-growing categories in the supplement market today. It makes sense, when you consider how critical the one-hour window before training is for providing your body with the nutrients it needs to perform at its optimal level.
Sciatica occurs when there is pressure or damage to the sciatic nerve. This nerve starts in the lower back and runs down the back of each leg. This nerve controls the muscles of the back of the knee and lower leg. It also provides sensation to the back of the thigh, part of the lower leg, and the sole of the foot.
About the Sciatic Nerve in the Low Back. The sciatic nerve starts in your low back, which is called your lumbar spine. The nerve roots are at the L4 and L5 vertebrae (the 'L' means lumbar, and the numbers indicate the level of the vertebraâwhere it is in your back). The sciatic nerve also travels through your pelvic region (sacrum). In most people, the sciatic nerve runs under the piriformis muscle, which moves your thigh side to side. From there, the sciatic nerve descends through the buttocks and the back of the thighs. Behind your knee, smaller nerves branch out from the sciatic nerve and travel down to your feet. Your sciatic nerve is part of a complex structure: your body's nervous system. That system is responsible for transmitting pain and sensation to other parts of your body.