Purchase this article with an account.
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.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
We analyzed the proper rest period for visual and physical fatigue caused by a soccer game.
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.
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.
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.
This PDF is available to Subscribers Only