1Department of Orthopedic, Chung-Ang Medical Center, Chung-Ang University School of Medicine, Seoul, Korea
2Department of Nursing, Namseoul University, Cheonan, Korea
3Department of orthopedic, Chung-Ang Medical center, Chung-Ang University School of Medicine, Seoul, Korea
An increase in the temperature of the tendon due to repetitive exercise may also be an important cause of injury.
Ten men participated and five fresh frozen cadavers in the thermographic study. The experimental subjects performed hopping exercises using their right leg only for 10 minutes; the core temperatures of both Achilles tendons were measured before the exercise, immediately after the exercise, and 10 and 20 minutes after the exercise..
The temperature of the skin surface above the right Achilles tendon engaging in the hopping exercise significantly and gradually increased (χ2 = 27.120, p <.001) as time passed. On the other hand, while the temperature of the skin surface above the resting left Achilles tendon decreased immediately after exercise before gradually increasing later, these changes were not statistically significant (χ2 =.392, p =.564). In the cadaveric study, the baseline core temperature of the Achilles tendon was 23.56±0.09°C. This temperature rose to 23.74±0.11°C after 1000 cycles, 23.9±0.12°C after 2000 cycles, 24.16±0.09°C after 3000 cycles, 24.42±0.08°C after 4000 cycles, and 24.72±0.15°C after 5000 cycles, it was significantly increased (r = 0.998, p <.001).
The Achilles tendon is a relatively avascular structure, both direct and indirect methods of measurement suggest that its core temperature rises during exercise. Therefore, it will be the basic data for applying appropriate intervention to exercise
Hysteresis, Achilles, Tendon, Exercise, Temperature
