Superficial Heat

Many episodes of pain result from strains and over-exertions, creating tension in the muscles and soft tissues around the spine. As a result, this restricts proper circulation and sends pain signals to the brain.

Muscle spasm can create sensations that may range from mild discomfort to excruciating pain. Heat therapy can help relieve pain from the muscle spasm and related tightness.

Heat therapy application can help provide pain relief through several mechanisms:

• Heat therapy dilates the blood vessels of the muscles surrounding the lumbar spine. This process increases the flow of oxygen and nutrients to the muscles, helping to heal the damaged tissue.
  
• Heat stimulates the sensory receptors in the skin, which means that applying heat will decrease transmissions of pain signals to the brain and partially relieve the discomfort.
  
• Heat application facilitates stretching the soft tissues around the spine, including muscles, connective tissue, and adhesions. Consequently, with heat therapy, there will be a decrease in stiffness as well as injury, with an increase in flexibility and overall feeling of comfort. Flexibility is very important for a healthy body.