Associate Graduate Program of Physical Education, Federal University of Paraíba, Joao Pessoa, Brazil.
Department of Physical Education, Federal Rural University of Pernambuco, Recife, Brazil.
Percept Mot Skills. 2021 Dec;128(6):2745-2766. doi: 10.1177/00315125211040596. Epub 2021 Aug 17.
We studied the effects of repeated inducements of mental fatigue (MF) from using social media on smartphones immediately before training sessions by young male volleyball athletes, focusing specifically on their decision-making, endurance, and countermovement jump performance (CMJ). We pair-matched 24 participants according to their decision-making abilities and then, randomly assigned them to one of two 4-week block training groups: control (CON) and smartphone use (SMA). For a 30-minute period before each training session, the CON group watched TV and the SMA group used social media apps on smartphones. We found a significant group x time interaction effect for decision making (attack, = 0.03; passing, = 0.02) during training blocks. More specifically, only the CON group improved their decision making (attack, = 0.03; passing, = 0.02). Both groups significantly improved their CMJ performance ( = .01), with no significant group x time interaction effect for CMJ ( = 0.91). Neither group significantly improved their endurance ( = 0.56). We concluded that 30-minutes of repetitive social media app use on a smartphone immediately before 4-weeks of volleyball training sessions negatively affected decision-making in young male volleyball athletes.
我们研究了在训练前使用智能手机反复进行社交媒体诱发的精神疲劳（MF）对年轻男性排球运动员决策能力、耐力和反跳性能（CMJ）的影响。我们根据决策能力将 24 名参与者配对，然后将他们随机分配到以下两个 4 周分组训练组之一：对照组（CON）和智能手机使用组（SMA）。在每次训练前的 30 分钟内，CON 组观看电视，SMA 组在智能手机上使用社交媒体应用程序。我们发现训练期间的决策能力（攻击， = 0.03；传球， = 0.02）存在显著的组间时间交互效应。具体来说，只有 CON 组提高了他们的决策能力（攻击， = 0.03；传球， = 0.02）。两组的 CMJ 性能都有显著提高（ = .01），CMJ 没有显著的组间时间交互效应（ = 0.91）。两组的耐力都没有显著提高（ = 0.56）。我们得出结论，在 4 周的排球训练前，使用智能手机 30 分钟反复使用社交媒体应用程序会对年轻男性排球运动员的决策能力产生负面影响。
