Analysis on the Amount of Physical Activities of Taekwondo Taegeuk Pumsae Using Accelerometers SangBock Lee, Tae Soo Lee Analysis on the Amount of Physical Activities of Taekwondo Taegeuk Pumsae Using Accelerometers SangBock Lee *1 , Tae Soo Lee *2 *1 Dept. Of Radiology, Nambu University, gwangsan-gu, Gwangju, 506-706, Republic of Korea *2 Dept. Of Biomedical Engineering in Medical School, Chungbuk National University sblee@nambu.ac.kr, tslee@chungbuk.ac.kr doi: 10.4156/jcit.vol5.issue1.6 Abstract This study measured and analyzed the amount of exercise in performing the basic pumsae of taekwondo, namely, taegeuk pumsae Chapter 1 through 8 using an accelerometer, calculated energy consumption from the amount of exercise, and proposed it as an indicator of exercise prescription for successful aging. We attached an accelerometer armband to 39 subjects of the experiment (28 males and 11 females) and had them perform taekwondo basic pumsae, namely, taegeuk pumsae Chapter 1 through 8. Sampled data were peak transverse acceleration (PAT), peak longitudinal acceleration (PAL), mean heat emission (HFA), mean skin temperature (STA), mean transverse acceleration (TAA), mean longitudinal acceleration (LAA), ambient temperature (CTA), the mean of the absolute value of variation in transverse acceleration (TMAD), the mean of the absolute value of variation in longitudinal acceleration (LMAD), steps per minute (SPM), skin conductivity (GSR), and energy consumption per minute (EE), and the sampling rate was one per second. In the results of analyzing acquired data with regard to the amount of physical activities and energy consumption of taegeuk pumsae, the mean TMAD was 7.83, the mean LMAD was 6.92, and the mean EE was 4.08. When taegeuk pumsae Chapter 1 through 8 was performed, energy consumption was around 120~210 cal. Keywords Sports Medicine, Aging, Taekwondo, Accelerometers, Physical Activities 1. Introduction Sports medicine is a science that studies how the human body moves during physical activities in exercise and how a healthy body can be maintained [1, 2]. Sports medicine has its scientific value in “how to prevent injuries or wounds that may occur during playing sports, how to enhance athletic performance, and how people other than athletes achieve health and successful aging through exercise” before treatment through surgical science or rehabilitative medicine. Taekwondo established its base as an international sport in the 1980s, and was adopted as an official event in the 1986 Asian Games. As it achieved good results as a demonstrative event in the 1988 Seoul Olympics and 1992 Barcelona Olympics, taekwondo was included as an official event in the 2000 Sidney Olympics. In the Olympics, taekwondo displayed its value and superiority as a sport throughout the world and was settled as an international sport both in name and in reality [3]. Currently, the number of taekwondo trainees is around 50 million in 169 countries, and around 10% (5 million) of them are acting as taekwondo players [3]. These numbers show that most of the taekwondo population get taekwondo training for physical drilling and health and the trainees stress more on basic motions, pumsae, match and self- defense techniques than on difficult techniques. Particularly in order to be a black-belt player, trainees focus their training on pumsae. This study measured the amount of physical activities in taekwondo basic pumsae, namely, taegeuk pumsae using an accelerometer and, using the measurements, obtained the mean and standard deviation of the amount of physical activities in each chapter of taegeuk pumsae, and analyzed the correlation between the amount of physical activities and energy consumption. Analyzed data are expected to be utilized as the indicators of the amount of physical activities and energy consumption in taekwondo taegeuk pumsae. 2. Taekwondo Taegeuk Pumsae and Acquisition of Data on The Amount of Physical Activities 1. Taekwondo taegeuk pumsae 48