A wireless sensor system for a biofeedback training of hammer throwers.
Hammer-throw has a long-standing history in track and field, but unlike some other sports events, men's hammer throw has not seen a new world record since 1986. One of the possible reasons for this stagnation could be the lack of real-time biomechanical feedback training. In this study, we proposed to establish scientifically described training targets and routes, which in turn required tools that could measure and quantify characteristics of an effective hammer-throw. Towards this goal, we have developed a real-time biomechanical feedback device-a wireless sensor system-to help the training of hammer-throw. The system includes two sensors-an infrared proximity sensor for tracing the hip vertical movement and a load cell for recording the wire tension during a hammer-throw. The system uses XBees for data transmission and an Arduino processor for data processing and system control. The results revealed that the wire tension measurement could supply sufficient key features for coaches to analyze hammer-throw and give real-time feedback for improving training efficiency.
Department of Mathematics and Computer Science, University of Lethbridge, Lethbridge, AB Canada.
Ye
Y
Wang
School of Physical Education, Shaanxi Normal University, Xi'an, China ; Biomechanics Lab, Faculty of Arts and Science, University of Lethbridge, 4401 University Drive, Lethbridge, AB T1K 3M4 Canada.
Bingjun
B
Wan
Department of Mathematics and Computer Science, University of Lethbridge, Lethbridge, AB Canada.
Hua
H
Li
Biomechanics Lab, Faculty of Arts and Science, University of Lethbridge, 4401 University Drive, Lethbridge, AB T1K 3M4 Canada ; School of Physical Education, Shaanxi Normal University, Xi'an, China ; Department of Physical Education, Xinzhou Teachers' University, Xinzhou, Shanxi China.
Gongbing
G
Shan
Arduino; Hammer-throw; Wireless sensor networks; XBee