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Hydrotherapy is the use of water to provide therapeutic effects. This is quite a wide ranging topic and can include treatments such as steam rooms and clonic hydrotherapy, but in this case we are referring to the use of water (in a hydrotherapy pool) to help with musculoskeletal and neural rehabilitation, as often used in physical therapy.
What is Hydrotherapy?
Hydrotherapy (sometimes called aquatic therapy) uses the principles of water to allow exercise and to alter exercise intensity. Increased buoyancy (opposite to gravity) allows for more exercise than is permitted on land. Increased temperature and hydrostatic pressure promote increases in circulation and flexibility and decreases in swelling. Increasing speed, turbulence and surface area can all be used to increase exercise difficulty.
A hydrotherapy pool is a swimming pool specifically designed for providing hydrotherapy treatments. The main difference is the increase in temperature. A hydrotherapy pool is heated to around 35 degrees Celsius. This allows for the patient to fully relax (and not tense up in cold water), promotes pain relief and encourages circulation. A hydrotherapy pool should be rectangular in shape and may vary in depth to allow for walking as well as deep water work. It should be easily accessible and have a hoist available to lower in those who are not able to enter the pool themselves.
Benefits of Hydrotherapy
Hydrotherapy can be very useful in treating many different types of soft tissue and bone injury as well as neuromuscular conditions such as muscular dystrophy.
The benefits of hydrotherapy include:
- Pain relief.
- Reduction in muscle spasm.
- Increased joint range of motion.
- Strengthening of weak muscles.
- Increased circulation.
- Improvement of balance and co-ordination.
- Re-education of paralysed muscles.
Because of the buoyancy of the water, hydrotherapy allows many individuals to exercise, where they wouldn't be able to on land. The effect of this increased buoyancy and decreased gravitational force means that there is less stress on weight bearing joints such as the knees and hips and many movements can be performed in water before they would be possible on land.
Uses of Hydrotherapy
Hydrotherapy may be useful in the following conditions:
- Arthritis - both osteoarthritis and rheumatoid arthritis.
- Back pain.
- Musculoskeletal conditions - such as frozen shoulder, ankle sprains and groin strains etc.
- Following surgery for conditions such as knee replacement, hip replacement, ACL reconstruction etc.
- Neurological conditions including Muscular Dystrophy, Cerebral Palsy, Multiple Sclerosis, Parkinsons Disease etc.
- After strokes or head injuries.
In certain circumstances, hydrotherapy is not recommended.
- Inflammation - acute injuries where redness and heat are still present are not recommended for hydrotherapy treatment.
- Fever - whole body warming is not recommended if a temperature is present.
- Heart disease - increased blood flow may place stress on the heart.
- Hypertension (high blood pressure) - as above.
- Vascular conditions - Increased circulation is not advised.
- Kidney problems.
There are many different types of exercise that can be undertaken in water and the form of exercise prescribed will vary to take into consideration the patients injury or condition, ability and the facilities or equipment available.
Forms of hydrotherapy
Hydrotherapy can include anything from floating in the water and simply benefiting from the increased temperature and relaxation properties, to full on, intense exercise sessions. The form of hydrotherapy used will depend entirely on the individual in question and the facilities available.
Many land based exercises can be adapted to use in the water. Walking in a pool is easier on the joints due to the buoyancy Some state of the art facilities may even have underwater treadmills! Other exercises such as squats and lunges are easier too.
One method of hydrotherapy is known as the Bad Ragaz Ring Method. It is a method of muscle re-education where the patient is floated and specific patterns of resistance, endurance, elongation, relaxation, range of motion, and tonal reduction are used.
As mentioned above, all exercises can be progressed by increasing the speed of the movement or the turbulence of the water. Other methods of increasing difficulty include increasing surface area. This can be achieved for example by holding something wide in the hand (such as a racket or bat) when moving it through the water.
The buoyancy of the water can be used as either a tool to assist movement or to increase the difficulty of an exercise. For example, when exercising the shoulder, the water can be used to help in lifting the arm upwards from by the side. However, it will provide resistance against pushing the arm back down. This resistance can be increased further by attaching a float to the arm.