Many studies have explored the association between adverse childhood experiences (ACEs) and Internet addiction (IA), yet the research findings on the association between them are inconclusive. We conducted a systematic search on 7 databases to identify the relevant studies published until January 2023, and analyzed the findings from 37 studies across 12 countries involving 45,364 participants aged 8 to 67 years (51 % women). Results indicated a positive correlation (r = 0.21) was found between ACE and IA around the world, which differed among continents. It was found that all ACE subtypes were significantly associated with IA (range r = 0.16 to 0.25). Meta-regression showed a stronger association among younger individuals without moderating effects of gender or publication year. In conclusion, this study sheds light on the significant association between ACEs and IA, emphasizing the need for targeted interventions and preventive measures. Future research could delve into specific interventions aimed at mitigating the impact of ACEs on IA, such as cognitive-behavioral therapies or metacognitive therapy interventions. Additionally, investigating cultural factors that may influence this association could provide valuable insights into tailored approaches for different populations. Understanding these dynamics is crucial for developing effective strategies to address IA and its underlying factors.

The aim of this research was to evaluate the effects of exercise training on mobility, balance and gait parameters, with a particular emphasis on the timed up and go test (TUG), the Berg Balance Scale (BBS), the 6-minute walk test (6MWT), and the 10-meter walk test (10MWT). A systematic search was conducted across several databases, namely Web of Science, Embase, PubMed, and the Cochrane Library for randomized controlled trials (RCTs), to evaluate the effects of exercise interventions on mobility, balance and gait in chronic stroke patients. After rigorous screening, 13 RCTs with both experimental and control groups (193/190 participants) were found eligible for inclusion. The meta-analysis demonstrated significant improvement in the mobility ability, as measured by TUG test after exercise intervention (MD = − 4.81, p < 0.01, 95% CI [− 8.23 to − 1.38]). Furthermore, exercise effectively enhanced the balance ability, as measured by the BBS, among chronic stroke patients (MD = 3.81, p < 0.01, 95% CI [1.98–5.64]). However, no statistically significant impact of exercise training was observed on the 6MWT (SMD = 0.00, p > 0.05, 95% CI [− 0.24 to 0.25]) or 10MWT (SMD = 0.03, p > 0.05, 95% CI [− 0.07 to 0.12]). Exercise training interventions significantly increased mobility and balance scores in chronic stroke patients. However, they had no effect on gait scores. The results of further subgroup analysis show that aerobic training (AT) has a significant effect in enhancing the activity ability index of patients, while resistance training (RT) shows an obvious advantage in improving the balance index evaluated by the Berg Balance Scale (BBS).

Although physical activity is associated with better attentional functioning in elderly populations or in specific clinical populations, the association between physical activity level and attention has been less studied in young adult populations. Thus, the purpose of this study was to investigate whether the positive effects of physical activity on attentional networks extend to young adults. In total, 57 college students were recruited and assigned to one of three groups of physical activity levels (high, moderate, and low) based on their self-reported exercise. Each participant completed the Attention Network Test to evaluate the efficiency of three components of attention: alerting, orienting, and executive control. Compared with the low physical activity group, both the high and moderate physical activity groups exhibited better executive control. In addition, the efficiency of the executive control network was positively correlated with physical activity. By contrast, no statistically significant differences were detected among these three groups for the functioning of the alerting or orienting networks. These findings suggested that physical activity had a positive effect on attention in young adults, with the benefit primarily observed for the executive control component rather than for the alerting and orienting components of attention.

Objective: To assess the effects of 8 weeks of unilateral (UNI), bilateral (BI), and combined unilateral + bilateral (UNI + BI) resistance training on bench press and squat strength in adolescent boxers.Methods: Using the Gym Aware linear accelerometer, free-weight squat and bench press strength exercises were evaluated after an 8-week training intervention. Thirty adolescent boxers were randomly assigned to three groups: UNI, height: 1.73 ± 0.08 m, weight: 55.42 ± 5.85 kg; UNI + BI, height: 1.7 ± 0.06 m, weight: 54.73 ± 5.33 kg; and BI, height: 1.74 ± 0.06 m, weight: 59.67 ± 8.39 kg. Each group followed their designated UNI/BI/UNI + BI compound resistance training protocols, and the effects of 8 weeks of single-sided and bilateral intervention training on the performance of free-weight squat and bench press exercises at 30%, 50%, and 80% of 1-repetition maximum (1RM) were evaluated.Results: Significant improvements were observed in the 30% 1RM, 50% 1RM, and 80% 1RM outcomes for both squat and bench press exercises before and after the interventions (p < 0.05, p < 0.01). In the intergroup comparison, GymAware measurements revealed that the UNI and UNI + BI groups exhibited superior peak power values for squat and bench press exercises at 30% 1RM compared to the BI group.Discussion: UNI and UNI + BI training led to significantly higher output power values in bench press and squat exercises at 30% 1RM compared to the BI training group.

Background: Unconscious information processing is enhanced among athletes for sports-specific contexts. Whether this enhancement is transferable to general contexts is unknown. This study explored unconscious information processing and brain activity in highly trained table tennis athletes and non-athletes in general contexts. Methods: Twenty table tennis athletes (six females, mean age = 20.38 ± 1.28, mean ± standard error) and 21 aged-matched college students (eight females, mean age = 19.81 ± 1.29) were recruited for this study. Each participant first performed a masked priming task. In this task, a prime stimulus (arrows pointing left or right) was presented, followed by a visual mask (arrows pointing in both directions) and then a target stimulus, the target stimulus consisted of arrows pointing in the same direction as the prime for congruent stimuli or in the opposite direction for incongruent trials, while the P3 component of the event-related potential was simultaneously recorded in the brain. As a control, participants then performed a prime identification task (the subjective threshold test and the objective threshold test) to determine whether they could consciously detect the priming arrows. Reaction times, error rates, P3 latency and P3 peak amplitude were analyzed to examine the unconscious information processing of table tennis athletes in general contexts. Results: Participants responded with the direction of the target arrow and were not consciously aware of the priming stimulus. Athletes responded faster in comparison of non-athletes. Athletes and non-athletes responded faster and committed fewer errors in incongruent vs. congruent conditions. In addition, the years of table tennis training were negatively correlated with the magnitude of negative compatibility effect. Both groups displayed longer P3 latencies, a measure of inhibitory control, in the incongruent vs. congruent trials. However, athletes displayed higher P3 peak amplitudes, reflecting larger attention resource input, and longer P3 latencies than non-athletes in central brain sites. Conclusion: Unconscious information processing among table tennis athletes is not prominent in general contexts, but may be limited to the sports-specific context or more complex cognitive tasks.