Validity and reliability of the Iranian force plate

Document Type : Research Paper

Authors

1 Department of Sport Injuries and Corrective Exercises, Faculty of Sport Sciences and Health, University of Tehran

2 Member of Iran Innovation Center Council at Sport Sciences Research Institute of Iran

Abstract

Background: Force plates are widely used in biomechanics and sports sciences to measure various aspects of human movement. The accuracy and reliability of force plate measurements are critical for valid data interpretation.
Aim: The purpose of the study was to evaluate the validity and reliability of the Iranian force plate in the vertical, anterior-posterior, and medial-lateral directions using two manual dynamometers and a load cell.
Materials and Methods: In this study, the force plate device utilized had a frequency of 1200 Hz and was manufactured by the Danesh Salar Iranian Company. Additionally, to determine the device's validity, we used Lafayette hand-held dynamometers manufactured in the United States and a load cell by Zemik. Pearson's correlation coefficient was employed to determine the validity of the force plate, while the internal consistency coefficient (ICC) was used to assess the force plate's reliability.
Results: The study findings indicated a significant and high level of reliability between the maximum force obtained from the force plate device and manual dynamometer devices and load cell. Additionally, the internal consistency coefficient was found to be excellent (very high) for 20 trials in the three directions of vertical (0.98), anterior-posterior (0.96), and medial-lateral (0.97).
Conclusion: The study demonstrated that the Iranian force plate is a reliable device for measuring maximum force in the three directions of vertical, anterior-posterior, and medial-lateral, with very high validity.

Keywords

References

[1] Elliott B. "Biomechanics: an integral part of sport science and sport medicine". Journal of Science and Medicine in Sport. 1999; 2(4): 299-310. doi: 10.1016/s1440-2440(99)80003-6. PMID: 10710008.

[2] Li L. "How can sport biomechanics contribute to the advance of world record and best athletic performance?". Measurement in Physical Education and Exercise Science. 2012; 16(3): 194-202. doi: 10.1080/1091367X.2012.700802.

[3] Stefanyshyn DJ, Wannop JW. "Biomechanics research and sport equipment development". Sports Engineering. 2015; 18(4): 191-202. doi: 10.1007/s12283-015-0183-5.

[4] Yeadon M, Challis J. "The future of performance‐related sports biomechanics research". Journal of Sports Sciences. 1994; 12(1): 3-32. doi: 10.1080/02640419408732156. PMID: 8158746.

[5] Kamen G, Kinesiology E. Research methods in biomechanics. Champaign, IL, Human Kinetics Publ, 2004.

[6] Castro MP, Figueiredo MC, Abreu S, Sousa H, Machado L, Santos R, Vilas-Boas JP. "The influence of gait cadence on the ground reaction forces and plantar pressures during load carriage of young adults". Applied Ergonomics. 2015; 49: 41-46. doi: 10.1016/j.apergo.2015.01.004. PMID: 25766421.

[7] Hatze H. "Validity and reliability of methods for testing vertical jumping performance". Journal of Applied Biomechanics. 1998; 14(2): 127-140. doi:10.1123/jab.14.2.127.

[8] Liu W, Nigg BM. "A mechanical model to determine the influence of masses and mass distribution on the impact force during running". Journal of Biomechanics. 2000; 33(2): 219-224. doi: 10.1016/s0021-9290(99)00151-7. PMID: 10653036.

[9] Novacheck TF. "The biomechanics of running". Gait & Posture. 1998; 7(1): 77-95. doi: 10.1016/s0966-6362(97)00038-6. PMID: 10200378.

[10] Schot PK, Knutzen KM. "A biomechanical analysis of four sprint start positions". Research Quarterly for Exercise and Sport. 1992; 63(2): 137-147. doi: 10.1080/02701367.1992.10607573. PMID: 1585060.

[11] Shinohara Y, Maeda M. "The relation between block spacing and forces applied to starting blocks by a sprinter". Journal of Japan Society of Sports Industry. 2011; 21(2): 217-228. doi: 10.1016/j.proeng.2011.05.066.

[12] Bobbert MF, Mackay M, Schinkelshoek D, Huijing PA, van Ingen Schenau GJ. "Biomechanical analysis of drop and countermovement jumps". European Journal of Applied Physiology and Occupational Physiology. 1986; 54(6): 566-573. doi: 10.1007/BF00943342. PMID: 3948851.

[13] De Jesus K, de Jesus K, Abraldes JA, Medeiros AI, Fernandes RJ, Vilas-Boas JP. "Are the new starting block facilities beneficial for backstroke start performance?" Journal of Sports Sciences. 2016; 34(9): 871-877. doi: 10.1080/02640414.2015.1076166. PMID: 26252647.

[14] Mourão L, de Jesus K, Roesler H, Machado LJ, Fernandes RJ, Vilas-Boas JP, Vaz MA. "Effective swimmer’s action during the grab start technique". PLoS One. 2015; 10(5): e0123001. doi: 10.1371/journal.pone.0123001.

[15] Cook DA, Beckman TJ. "Current concepts in validity and reliability for psychometric instruments: theory and application". The American Journal of Medicine. 2006; 119(2): 166. e7-166. e16. doi: 10.1016/j.amjmed.2005.10.036.PMID: 16443422.

[16] Drost EA. "Validity and reliability in social science research". Education Research and Perspectives. 2011; 38(1): 105-123.

[17] Martin H, Yule V, Syddall HE, Dennison EM, Cooper C, Aihie sayer A. "Is hand-held dynamometry useful for the measurement of quadriceps strength in older people? A comparison with the gold standard Biodex dynamometry". Gerontology. 2006; 52(3): 154-159. doi: 10.1159/000091824. PMID: 16645295.

[18] Mentiplay BF, Perraton LG, Bower KJ, Adair B, Pua YH, Williams GP, McGaw R, Clark RA. "Assessment of lower limb muscle strength and power using hand-held and fixed dynamometry: a reliability and validity study". PloS One. 2015; 10(10): e0140822. doi: 10.1371/journal.pone.0140822.

[19] Hopkins WG. "Measures of reliability in sports medicine and science". Sports Medicine. 2000; 30(1): 1-15. doi: 10.2165/00007256-200030010-00001.

[20] Muijs D. Doing Quantitative Research in Education with SPSS. McGraw-hill education (UK). 2013.

Sport Sciences and Health Research
Volume 14, Issue 1
January 2022
Pages 109-114

Files

Share

How to cite

Statistics