Cycling Anatomy by Shannon Sovndal

Author:Shannon Sovndal
Language: eng
Format: mobi, epub
Publisher: Human Kinetics
Published: 0101-01-01T00:00:00+00:00

Figure 5.1 The spine.

Intervertebral discs cushion the intersection between two vertebrae and allow smooth movement of the spine. The fibrous outer section of the disc is called the annulus fibrosus. The inner section, which helps distribute pressure and stress, is called the nucleus pulposus. A herniated disc occurs when there is a breakdown of the fibrous outer band and a bulging out of the nucleus pulposus. This bulge can happen anywhere around the disc, but when it happens near the vertebral foramen, it can compress the exiting nerve and cause excruciating pain and weakness.

Cyclists have a tendency to develop back problems because the riding position places anatomical stressors on the curved spine. Normally, the lower back has a lordotic curve that causes the lumbar spine to appear to bend inward. When you ride your bike, this curve is flattened. Cyclists like to ride with a “flat back” because it improves aerodynamics. However, the flattening of your lordotic curve can place increased pressure on the anterior aspect of your lumbar vertebrae and intervertebral discs. If the force becomes too great, disc herniation can result. By easing into your training and working the muscles of your back and abdomen in the gym, you can alleviate many of the problems that may arise from your cycling position.

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