From the Kinesiotaping website:
The Kinesio Taping® Method has taken the Rehabilitation and Sports Medicine world by storm. This amazing taping method was developed by Dr. Kenzo Kase over 25 years ago in Japan. Kinesio Taping® has quickly become the gold, or should we say “platinum” standard, for therapeutic rehabilitative taping. The proprietary method of taping uses a uniquely designed and patented tape for treatment of muscular disorders and lymphedema reduction.
The Kinesio Taping® Method involves taping over and around muscles in order to assist and give support or to prevent over-contraction. The first technique gives the practitioner the opportunity to actually give support while maintaining full range of motion. This enables the individual to participate in their normal physical activity with functional assistance. The second technique, which is most commonly used in the acute stage of rehabilitation, helps prevent overuse or over-contraction and helps provide facilitation of lymph flow for an entire 24 hour period.