{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T06:26:51Z","timestamp":1785306411237,"version":"3.55.0"},"reference-count":31,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2022,10,28]],"date-time":"2022-10-28T00:00:00Z","timestamp":1666915200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Department of Science and Technology of Liaoning Province","award":["2020JH2\/10300112"],"award-info":[{"award-number":["2020JH2\/10300112"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>This paper aims to investigate the differences in standing balance control ability between freestyle skiing aerials athletes and ordinary graduate students by means of wavelet transform (WT) and the overall stability index (OSI) and to discover the characteristics of the postural control ability of dissimilar subjects and appropriate methods to assess the postural control ability of the human body. Research Methods: In all, 16 subjects were tested, including 8 from the Chinese national team who had won the world championships of freestyle skiing aerials, with 10+ years of training (age: 23 \u00b1 23.1 years, Height: 176 \u00b1 2.1 cm, and weight: 69 \u00b1 3.5 kg), and 8 ordinary graduate students of Shenyang Institute of Physical Education (age: 22.6 \u00b1 4.6 years, Height: 179 \u00b1 3.3 cm, and weight: 73 \u00b1 4.1 kg). When performing the tasks, the research subjects were required to stand on the steady support surface (with eyes closed and legs closed) for 30 s in each testing. The displacement data of the anteroposterior (AP) direction and the mediolateral (ML) direction of their centre of pressure (COP) were recorded. Then, WT and OSI were calculated. Two dissimilar methods were compared to analyse the characteristics of balance ability. Results: (1) The athletes\u2019 WT values in the AP direction and the ML direction were concentrated in the interval of 22~30 s and 0\u20138 s, respectively, while the ordinary graduate students\u2019 WT values in the AP direction and the ML direction were concentrated in the interval of 10~25 s and 0\u20137 s, respectively; (2) the WT values of the regular graduate students in the AP direction and the ML direction were higher than those of the athletes (p &lt; 0.01); and (3) the OSI value in the AP direction of the athletes was higher than of the ordinary graduate students, while the OSI value in the ML direction of the athletes was lower than that of regular graduate students. Conclusion: Compared to the OSI, WT can analyse the characteristics of balance control ability more effectively. The COP displacement frequencies of the athletes and ordinary graduate students were concentrated in the low-frequency bands. The athletes had superior adjustment ability in an imbalanced state and could adjust to the best position without effort. In addition, the athletes had a stronger adaptive ability. In comparison, the ordinary graduate students had comparatively poor adaptive ability and weak adjustment ability in the imbalanced state, so it was difficult for them to attain the best angle after adjustment.<\/jats:p>","DOI":"10.3390\/ijerph192114078","type":"journal-article","created":{"date-parts":[[2022,10,30]],"date-time":"2022-10-30T04:57:34Z","timestamp":1667105854000},"page":"14078","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Study on the Difference of Human Body Balance Stability Regulation Characteristics by Time-Frequency and Time-Domain Data Processing Methods"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1455-199X","authenticated-orcid":false,"given":"Xinze","family":"Cui","sequence":"first","affiliation":[{"name":"Department of Kinesiology, Shenyang Sport University, Shenyang 110115, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Baosen","family":"Fu","sequence":"additional","affiliation":[{"name":"School of General Education, Shenyang Sport University, Shenyang 110115, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siqi","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, Shenyang Sport University, Shenyang 110115, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuqi","family":"Cheng","sequence":"additional","affiliation":[{"name":"Shanghai Institute of Physical Education, Shanghai 200433, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xin","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Kinesiology, Shenyang Sport University, Shenyang 110115, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4784-5919","authenticated-orcid":false,"given":"Tianyu","family":"Zhao","sequence":"additional","affiliation":[{"name":"Key Laboratory of Structural Dynamics of Liaoning Province, College of Sciences, Northeastern University, Shenyang 110819, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,10,28]]},"reference":[{"key":"ref_1","first-page":"99","article-title":"Effects of long-term fitness Yangko exercise on static balance ability of postmenopausal women","volume":"33","author":"Feng","year":"2014","journal-title":"J. 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