Development of "Sit and Reach" Flexometer Using Infra-Red

Dzihan Khilmi Ayu Firdausi, Muhammad E. M. Simbolon

Abstract


This research generally aims to develop a "sit and reach test" flexometer that can measure the flexibility of a person's body. Specifically, this research aims to: (1) replace conventional measurement of flexibility, because this measuring instrument will work electronically; (2) developing a flexometer that works electronically using infrared so that it is processed by a microcontroller so that the test results in the form of distance are automatically classified (3) developing a flexometer that is more modern, practical, effective and efficient. This research uses a product development (research & development) approach that is consists of several steps, namely observation, planning and design, experimentation and testing, and analysis. Products were tested for validity using the construct validity and product reliability methods with the retest method. Based on data analysis, the validity value of the flexometer auto compared to the conventional measurement of flexibility is 0.645098. Based on the analysis of the reliability test data obtained r11 = 0.988> rt = 0.312. It can be concluded that the automation felxometer uses valid and reliable infrared to be used in measuring the flexibility of the body in the sit and reach test.

Keywords


Flexometer, Infra merah, Sit and Reach Test

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References


Afsharnezhad, T., Nateghi, N., & Soufi, M. R. (2010). Normalizing Scores of the Modified Back-Saver Sit-And- Reach Test in Middle School Boys. International Journal of Sports Science and Engineering, 04(02), 99–105.

Arjuna, F., & Susanto, D. R. (2013). PROFIL DAYA TAHAN JANTUNG PARU , KEKUATAN OTOT U-17 ROMBERZ FC BANTUL YOGYAKARTA. MEDIKORA, 11(2), 165–181.

Bader M. O. Al-thobaiti, Iman I. M. Abosolaiman, Mahdi H. M. Alzahrani, S. H. A. A., & Mohamed S. Soliman*. (2014). Design and Implementation of a Reliable Wireless Real-Time Home Automation System Based on Arduino Uno Single-Board Microcontroller. International Journal of Control, Automation and Systems, 3(3), 2165–8285. Retrieved from http://www.researchpub.org/journal/jac/jac.html

Bin Bahrudin, M. S., Kassim, R. A., & Buniyamin, N. (2013). Development of Fire alarm system using Raspberry Pi and Arduino Uno. 2013 International Conference on Electrical, Electronics and System Engineering, ICEESE 2013, 43–48. https://doi.org/10.1109/ICEESE.2013.6895040

Draper, N., Brent, S., Hodgson, C., & Blackwell, G. (2009). Flexibility assessment and the role of flexibility as a determinant of performance in rock climbing. International Journal of Performance Analysis in Sport, 9(1), 67–89. https://doi.org/10.1080/24748668.2009.11868465

Haryono, S., & Pribadi, F. S. (2012). Pengembangan Jump Power Meter Sebagai Alat Pengukur Power Tungkai. Jurnal Media Ilmu Keolahragaan Indonesia, 2(1), 15–27.

Hoeger, W. W. K., & Hopkins, D. R. (1992). A comparison of the sit and reach and the modified sit and reach in the measurement of flexibility in women. Research Quarterly for Exercise and Sport, 63(2), 191–195. https://doi.org/10.1080/02701367.1992.10607580

Jones, I. and, & Gratton, C. (2004). Research Methods for sport studies.

Lemmink, K. A. P. M., Greef, M. H. G., Rispens, P., Kemper, H. C. G., & Stevens, M. (2003). The validity of the sit-and-reach test and the modified sit-and-reach test in middle-aged to older men and women. Research Quarterly for Exercise and Sport, 74(3), 331–336. https://doi.org/10.1080/02701367.2003.10609099

López-Miñarro, P. A., Andújar, P. S. de B., & Rodríguez-García, P. L. (2009). A comparison of the sit-and-reach test and the back-saver sit-and-reach test in university students. Journal of Sports Science and Medicine, 8(1), 116–122.

Lubis, H. M., & Sulastri, D. (2015). Hubungan Indeks Massa Tubuh dan dengan Ketahanan Otot dan Kekuatan Ketahanan Fleksibilitas pada Mahasiswa Laki-Laki Jurusan Pendidikan Dokter Universitas Andalas Angkatan 2013. Jurnal Kesehatan Andalas, 4(1), 142–150.

Prabandani, D. A., & Laksono, B. (2016). Perbandingan Nilai Fleksibilitas Tubuh Ibu Post Partum yang Melakukan dan Tidak Melakukan Senam Pilates. Jurnal Kedokteran Diponegoro, 5(4), 703–708.

Pribadi, F. S., & Haryono, S. (2011). Rancang Bangun Alat Ukur Ketinggian Lompatan dengan Sensor Infra Merah. Jurnal Teknik Elektro, 3(1), 20–25.

Sutono. (2014). Perancangan sistem aplikasi otomatisasi lampu penerangan menggunakan sensor gerak dan sensor cahaya berbasis arduino UNO (ATMega 328). Majalah Ilmiah UNIKOM, 12(2), 223–232. Retrieved from http://jurnal.unikom.ac.id/jurnal/perancangan-sistem-aplikasi.4e




DOI: https://doi.org/10.24114/pjkr.v4i2.14892

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