{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T16:30:57Z","timestamp":1793637057652,"version":"4.5.1"},"reference-count":43,"publisher":"Human Kinetics","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,11,1]]},"abstract":"<jats:p>\n                    <jats:italic>\n                      <jats:bold>Purpose<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    The present study compared cross-sectional (CS) and longitudinal (LT) data for changes in anthropometric and performance parameters in junior speed skaters to examine how well the CS data reflects individual LT changes.\n                    <jats:italic>\n                      <jats:bold>Methods<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    The CS data consisted of 404 Japanese male skaters of 11 (n\u2009=\u200960), 12 (n\u2009=\u200967), 13 (n\u2009=\u200973), 14 (n\u2009=\u200969), 15 (n\u2009=\u200953), 16 (n\u2009=\u200940), and 17\u00a0years (n\u2009=\u200942) taken between 2004 and 2019. The LT data followed 11 other male skaters whose 6 consecutive year (11\u201317\u00a0y) data were available. Outcome measures included height, body mass, body mass index, lower limb circumferences, muscle thicknesses, maximal anaerobic power during 10-second maximal bicycle pedaling, peak speed in slide bord skating, and average ice-skating speed in 500\u00a0m.\n                    <jats:italic>\n                      <jats:bold>Results<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    The average values of the measures were not different (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.795\u2013.999) between the CS and LT data at any age (eg,\u00a0body mass index: 21.7 [2.0] vs 22.3 [2.3]\u00a0kg\/m\n                    <jats:sup>2<\/jats:sup>\n                    ; anterior thigh muscle thicknesses: 60.5 [5.1] vs 60.5 [4.5]\u00a0mm; maximal anaerobic power: 1022 [141] vs 1026 [164]\u00a0W; average ice-skating speed in 500\u00a0m: 12.5 [0.4] vs 12.5 [0.4]\u00a0m\/s at 17\u00a0y). Changes in the measures from 11 to 17\u00a0years were not different (\n                    <jats:italic>P<\/jats:italic>\n                    \u2009=\u2009.750\u2013.998) between the CS and LT data.\n                    <jats:italic>\n                      <jats:bold>Conclusion<\/jats:bold>\n                      :\n                    <\/jats:italic>\n                    These findings suggest that the CS data approximate individual developmental trends, when cohort bias is adequately controlled, but cannot substitute for LT analyses.\n                  <\/jats:p>","DOI":"10.1123\/pes.2025-0012","type":"journal-article","created":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T16:54:41Z","timestamp":1784307281000},"page":"462-471","source":"Crossref","is-referenced-by-count":0,"title":["Comparison Between Cross-Sectional and Longitudinal Data for Changes in Anthropometric and Performance Parameters From 11 to 17\u00a0Years Old in Japanese Male Speed Skaters"],"prefix":"10.1123","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0009-0002-7111-2854","authenticated-orcid":true,"given":"Daisuke","family":"Kumagawa","sequence":"first","affiliation":[{"name":"Faculty of Physical Education, Kokushikan University, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-4099-4668","authenticated-orcid":true,"given":"Taro","family":"Imawaka","sequence":"additional","affiliation":[{"name":"Center for Liberal Education and Learning, Sophia University, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7373-4994","authenticated-orcid":true,"given":"Kazunori","family":"Nosaka","sequence":"additional","affiliation":[{"name":"School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"100","reference":[{"issue":"5","key":"r1","series-title":"J Gerontol A Biol Sci Med Sci","doi-asserted-by":"publisher","first-page":"B362","DOI":"10.1093\/gerona\/53A.5.B362","article-title":"Comparison of cross-sectional and longitudinal designs in the study of aging of upper extremity performance","volume":"53","author":"Desrosiers J","year":"1998","unstructured":"Desrosiers J, H\u00e9bert R, Bravo G, Rochette A. 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