Changes of Intraarticular Temperature in the Knee Joint according to the Application Method of Cold Jet-stream.

, Kim, Tai Kon; , Wang, Jun Keuk; , Choi, Ki Seob; , Park, Si Bog

Original Article

Journal of the Korean Academy of Rehabilitation Medicine 2005;29(4):413-418.

Kim, Tai Kon , Wang, Jun Keuk , Choi, Ki Seob , Park, Si Bog

Department of Rehabilitation Medicine, Hanyang University College of Medicine. sibopark@hanyang.ac.kr

냉기치료 적용방법에 따른 슬관절강 내 온도 변화

김태곤, 왕준극, 최기섭, 박시복

한양대학교 의과대학 재활의학교실

Abstract

Objective
To investigate the changes of intraarticular temperature in the knee according to the application methods of cold jet-stream and to find the more effective method which reduces the intraarticular temperature.
Method
Fifteen healthy subjects were examined. We recorded both skin and intraarticular temperature of the knee for 120 minutes. We compared two different cooling methods using ⁣30^oC cold jet-stream by CRAis^Ⱂ (Century, Korea). The first was the intermittent cold jet-stream application method (ICA) which applied cold jet-stream to the knee joint every other minute for 5 minutes and the second was the continuous cold jet-stream application method with infrared (CCAI) for 5 minutes.
Results
In ICA, the intraarticular temperature maximally dropped as 1.7⁑0.6^oC (p＜0.01) and it took 28.7⁑18.9 minutes. Intraarticular temperature dropped 0.6⁑0.5^oC after 2 hour (p＜0.05). In CCAI, the intraarticular temperature maximally dropped as 2.8⁑0.7^oC (p＜0.01) and it took 38.0⁑24.6 minutes, intraarticular temperature after 2 hour dropped as 1.36⁑0.75^oC (p＜0.05). According to the two methods, CCAI showed more reduction in the lowest and after 2 hour intraarticular temperature compared with ICA in the knee joint (p＜0.05).
Conclusion
CCAI is better for reducing the intraarticular temperature than ICA. (J Korean Acad Rehab Med 2005; 29: 413-418)

Key Words: Cold jet-stream, Intraarticular temperature, Skin temperature, Infrared