International Journal of Human Movement and Sports Sciences Vol. 10(3), pp. 492 - 500
DOI: 10.13189/saj.2022.100317
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Reliability of Evaluation Parameters of Ground Reaction Force in Stepping Motion

Yusuke Oyama ^1,*, Maki Kameoka ², Yusuke Sakaguchi ³, Toshio Murayama ⁴, Tamaki Ohta ^5
1 Faculty of Culture and Sport Policy, Toin University of Yokohama, Yokohama, 2258503, Kanagawa, Japan
² PhD Career Support Office, University of Niigata, Niigata, 9502181, Niigata, Japan
³ Graduate School of Modern Society and Culture, University of Niigata, Niigata, 9502181, Niigata, Japan
⁴ Faculty of Engineering, University of Niigata, Niigata, 9502181, Niigata, Japan
⁵ Medical Fitness CUORE, Nekoyama Miyao Hospital, Niigata, 9501151, Niigata, Japan

ABSTRACT

The purpose of this study was to 1) examine the reliability of the evaluation parameters of the ground reaction force (GRF) in the stepping motion among middle-aged and elderly people, and 2) calculate the number of steps required for the analysis of the stepping motion. Participants were 128 middle-aged and elderly individuals regularly exercising at a health promotion facility. Participants performed 3 trials of the stepping motion for 10 seconds at the optimum speed on the same spot. We used a force plate to measure the vertical GRF during the stepping motion. The number of cycles and spatiotemporal parameters (8 mechanical parameters, 6 temporal parameters) were evaluated from the waveform of the GRF. Results showed that the number of cycles in the stepping motion was higher in the 2^nd and 3^rd trials than in the 1^st trial, and the intraclass correlation coefficients (ICC) were as high as .837 for men and .840 for women. When comparing the two consecutive steps of 10 steps after the start of the stepping motion, the stepping motion was in a steady state from the 3^rd step because the difference between the two steps became smaller after the 3^rd step. Furthermore, when the number of steps required to ensure reliability was calculated using the ICC (1, 1) of each parameter, it was shown that 15 or more steps were required. Our results suggested that stepping motion may be able to secure high reliability with a smaller number of steps than gait.

KEYWORDS
Gait, Spatiotemporal Parameter, Intraclass Correlation Coefficients, Middle-aged and Elderly People

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Yusuke Oyama , Maki Kameoka , Yusuke Sakaguchi , Toshio Murayama , Tamaki Ohta , "Reliability of Evaluation Parameters of Ground Reaction Force in Stepping Motion," International Journal of Human Movement and Sports Sciences, Vol. 10, No. 3, pp. 492 - 500, 2022. DOI: 10.13189/saj.2022.100317.

(b). APA Format:
Yusuke Oyama , Maki Kameoka , Yusuke Sakaguchi , Toshio Murayama , Tamaki Ohta (2022). Reliability of Evaluation Parameters of Ground Reaction Force in Stepping Motion. International Journal of Human Movement and Sports Sciences, 10(3), 492 - 500. DOI: 10.13189/saj.2022.100317.