When glucose is break down in lactic acid in muscle cause muscle aches or pain when we bath hot water and take massage this make blood circulation fast so the oxygen move to each and every body cell aerobic respiration take place to form ATP and the lactic acid transport into liver where it is converted in to pyruvate and then convert into ATP and transport to cell for energy to perform metabolic function.

Why do we get relief from muscle cramps with massage or hot water baths?

Muscle cramps are involuntary contractions of one or more muscles that can be painful and debilitating. They can occur due to various reasons, such as dehydration, muscle fatigue, electrolyte imbalances, poor circulation, or underlying medical conditions. When muscle cramps strike, seeking relief through massage or hot water baths can provide several benefits.

1. Increased blood flow and oxygenation:
- Massage and hot water baths both help to improve blood circulation in the affected muscles.
- Massage techniques like kneading, stroking, and friction stimulate the blood vessels, causing them to dilate and allowing more blood to flow into the muscles.
- The heat from a hot water bath also promotes vasodilation, increasing blood flow and oxygen supply to the cramped muscles.

2. Relaxation and muscle tension release:
- Massage therapy involves applying pressure and manipulating the muscles, which helps to relax the muscle fibers and release tension.
- The therapist may use techniques like effleurage (gentle stroking), petrissage (kneading), or deep tissue massage to target specific areas of tightness or knots.
- These techniques help to stretch and elongate the muscle fibers, relieving the cramped muscles and reducing pain.

3. Improved muscle flexibility:
- Massage and hot water baths can help improve muscle flexibility, which is particularly beneficial for individuals prone to muscle cramps.
- Massage stretches the muscle fibers, breaking down adhesions or scar tissue that may restrict movement and contribute to cramping.
- Hot water baths help to relax and loosen the muscles, allowing for greater range of motion and reducing the likelihood of cramping.

4. Pain relief and muscle relaxation:
- Both massage and hot water baths stimulate the release of endorphins, which are the body's natural painkillers.
- Endorphins help to reduce pain signals sent to the brain, providing relief from muscle cramps.
- Massage also triggers the relaxation response in the body, activating the parasympathetic nervous system and promoting a sense of calm and well-being.

Conclusion:
Massage and hot water baths can provide relief from muscle cramps by increasing blood flow and oxygenation, releasing muscle tension, improving flexibility, and promoting pain relief and relaxation. These techniques can be effective in managing and preventing muscle cramps, but it is important to consult with a healthcare professional for a proper diagnosis and to determine the most appropriate treatment approach.