July 2019
Volume 60, Issue 9
Free
ARVO Annual Meeting Abstract  |   July 2019
Evaluation of proper rest period in sports based on accommodative amplitude and urine specific gravity.
Author Affiliations & Notes
  • Yuichi Okumura
    Juntendo University graduate student, Bunkyo-ku, TOKYO, Japan
    Department of Strategic Operating Room Management and Improvement, Juntendo University, Japan
  • Takenori Inomata
    Ophthalmology, Juntendo University, Tokyo, Japan
    Department of Strategic Operating Room Management and Improvement, Juntendo University, Japan
  • Keiichi Fujimoto
    Juntendo University graduate student, Bunkyo-ku, TOKYO, Japan
  • Akira Murakami
    Ophthalmology, Juntendo University, Tokyo, Japan
  • Footnotes
    Commercial Relationships   Yuichi Okumura, Hogy Medical Co., Ltd. (F); Takenori Inomata, Alcon Japan Ltd. (F), Hogy Medical Co., Ltd. (F), HOYA Co., Ltd. (F), Ribomic Co., Ltd. (F), ROHTO Pharmaceutical Co., Ltd. (F), Santen Pharmaceutical Co., Ltd. (F), SEED Co., Ltd. (F), WAKAMOTO Co., Ltd. (F); Keiichi Fujimoto, None; Akira Murakami, Santen Pharmaceutical Co., Ltd. (F), SEED Co., Ltd. (F)
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science July 2019, Vol.60, 1806. doi:
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    • Get Citation

      Yuichi Okumura, Takenori Inomata, Keiichi Fujimoto, Akira Murakami; Evaluation of proper rest period in sports based on accommodative amplitude and urine specific gravity.. Invest. Ophthalmol. Vis. Sci. 2019;60(9):1806.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : We analyzed the proper rest period for visual and physical fatigue caused by a soccer game.

Methods : We included 32 participants who belonging to the professional soccer team between May 2017 and June 2018 (men: n=32,average age: 22.25±1.52 years). Their accommodative amplitude (NIDEK CO., LTD. AR-1s) and urine specific gravity were measured every Tuesday morning, and the results were classified as the rest group and game group. In both groups, the day before measurements was a rest day. The rest group had a rest day 2 days before measurements, and the game group had a game 2 days before measurements. The primary study outcome was accommodative amplitude, and the secondary study outcome was urine specific gravity. We compared these results between the groups using an unpaired t-test.Regarding accommodative amplitude, we set a baseline for each participant (the mean value of rest group in each participant), and considered the amount of change from the baseline.

Results : A total of 870 results were enrolled in this study, including 602 (69.2%) and 268 (30.8%) in the rest and game groups, respectively. Overall, the mean value of accommodative amplitude was 5.09±2.30, and that of urine specific gravity was 1.02±0.00. The amount of change in accommodative amplitude (0.00±0.04 vs -0.13±0.08 D, p=0.12) and urine specific gravity (1.02±0.00 vs 1.02±0.01, p=0.25) did not differ significantly between the two groups.

Conclusions : This study suggests that one day of rest may recover visual and physical fatigue caused by a soccer game.

This abstract was presented at the 2019 ARVO Annual Meeting, held in Vancouver, Canada, April 28 - May 2, 2019.

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