Associations of Voluntary Exercise and Screen Time during the First Wave of COVID-19 Restrictions in Japan with Subsequent Grip Strength among University Students: J-Fit+ Study
Associations of Voluntary Exercise and Screen Time during the First Wave of COVID-19 Restrictions in Japan with Subsequent Grip Strength among University Students: J-Fit+ Study
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DOI：
10.3390/su132413648
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发表时间：
2021-12
期刊：
影响因子：
3.9
通讯作者：
Shaoshuai Shen;Koya Suzuki;Yoshimitsu Kohmura;N. Fuku;Yuki Someya;E. Miyamoto-Mikami;Dandan Ke;S. Machida;Kazuhiro Aoki;H. Naito
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文献类型：
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作者：
Shaoshuai Shen;Koya Suzuki;Yoshimitsu Kohmura;N. Fuku;Yuki Someya;E. Miyamoto-Mikami;Dandan Ke;S. Machida;Kazuhiro Aoki;H. Naito
本研究旨在探讨 2019 年冠状病毒病 (COVID-19) 第一波限制期间自愿锻炼和屏幕时间对日本健康和运动科学专业学生随后握力的综合影响。参与者于2020年10月21日进行了握力测试并评估了体重。此外，他们在2020年10月21日至10月28日期间完成了一项在线调查，其中包括参与者当前的年龄、身高、自愿锻炼以及第一波COVID-19大流行期间（2020年4月和5月）的屏幕时间。总共有 380 名参与者提供了完整的数据（平均年龄 ± 标准差 [SD]：18.8 ± 0.6 岁；233 名男性）。我们的结果显示，在第一波疫情期间，87.6% 的男生和 84.4% 的女生每周进行超过 1 天的自愿锻炼。此外，21.5% 的男生和 23.1% 的女生每天看屏幕的时间超过 8 小时。研究发现，自愿运动量高、屏幕时间短的男女学生的握力都呈增强趋势。特别是，自主运动量高、屏幕时间短的男学生的握力 (p < 0.05) 明显高于自主运动量低、屏幕时间长的男生。总之，这项研究表明，在第一波 COVID-19 限制期间，高自愿运动和低屏幕时间的结合对健康和运动科学专业学生随后的握力产生了积极影响。
This study aimed to examine the combined effect of voluntary exercise and screen time during the first wave of the coronavirus disease 2019 (COVID-19) restrictions on subsequent grip strength among health and sports science students in Japan. The participants performed grip strength tests and had their weight assessed on 21 October 2020. Furthermore, they completed an online survey between 21 October and 28 October 2020, which included participants’ current age, height, voluntary exercise, and screen time during the first wave of the COVID-19 pandemic (April and May 2020). In total, 380 participants provided complete data (mean age ± standard deviation [SD]: 18.8 ± 0.6 years; 233 males). Our results revealed that 87.6% of male students and 84.4% of female students performed voluntary exercise >1 day/week during the first wave of the pandemic. Moreover, 21.5% of male students and 23.1% of female students had >8 h/day of screen time. A trend toward greater grip strength was observed for both male and female students with high voluntary exercise and low screen time. In particular, grip strength (p < 0.05) was significantly greater in male students with high voluntary exercise and low screen time than those with low voluntary exercise and high screen time. In conclusion, this study revealed that during the first wave of COVID-19 restrictions, a combination of high voluntary exercise and low screen time positively affected the subsequent grip strength of health and sports science students.