IoT-based instrumentation development for reaction time, kick impact force, and flexibility index measurement
This paper presents an Internet of Thing (IoT)- based instrumentation development using vibration sensor, force sensor, and Blynk app to obtain the reaction time, kick impact force, and flexibility index based on visual stimulants. Besides the Blynk app, vibration, and force sensors, other ma...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/6612/ http://eprints.uthm.edu.my/6612/1/J13831_53294a66490f78b3cd2dbf53782bde9e.pdf |
| Summary: | This paper presents an Internet of Thing (IoT)-
based instrumentation development using vibration sensor,
force sensor, and Blynk app to obtain the reaction time, kick
impact force, and flexibility index based on visual stimulants.
Besides the Blynk app, vibration, and force sensors, other
main components of the prototype are the Arduino
NodeMCU microcontroller, and three LEDs (yellow, red,
and green). The developed prototype was able to record the
reaction time, kick impact force, and flexibility index. These
outputs could be viewed not only on the Organic Light
Emitting Diode (OLED) display but also on the smartphone
via the Blynk app interface. To evaluate the performance of
the developed prototype, four male Silat athletes weighing
between 61kg to 80kg were recruited for this experiment.
They were requested to undergo a Simple Reaction Time
(SRT) task which requires them to perform three trials of
the front kick. From the SRT findings, it can be deduced
that 75% of the participants reacted faster towards green
LED with the fastest reaction time recorded was
1485.2±126.7ms compared to yellow and red LEDs. In the
future, the design of the hardware in terms of circuitry and
hardware casing will be improved for a better prototype
presentation. Secondly, a big sample size of subjects and
different branches of combat sports will be recruited to
assist in further analysis. Furthermore, the sound stimuli
will be included in future studies. Lastly, further research
should be conducted to assess the effect of colored stimuli on the reaction time of the athletes. |
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