Association of evening smartphone use with cardiac autonomic nervous activity after awakening in adolescents living in high school dormitories

Nose, Naoko; Fujinaga, Rina; Suzuki, Maki; Hayashi, Ikuyo; Moritani, Toshio; Kotani, Kazuhiko; Nagai, Narumi

doi:10.1007/s00381-017-3388-z

Cited by 10 publications

(7 citation statements)

References 28 publications

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“…On the other hand, our findings may be conflicting with different previous studies in this area and our knowledge of the subject [8,9]. In this regard, some studies examined the mobile phone, smartphone, and internet use on blood pressure in adolescence [37][38][39][40]. The findings of these studies showed a significant and positive association between mobile phone use with headache, earache, tinnitus, and restlessness.…”

Section: Discussioncontrasting

confidence: 94%

The association between self-reported mobile phone usage with blood pressure and heart rate: evidence from a cross-sectional study

et al. 2022

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Background With the advancement of technology, the rate of access and use of mobile phones in different communities has increased significantly. Mobile phones emit electromagnetic waves and therefore excessive use of them may have harmful effects on physical and mental health and especially on the cardiovascular system. This study aimed to investigate the association between self-reported mobile phone use duration and blood pressure and heart rate (HR) using data from Ravansar non-communicable diseases (RaNCD) cohort study. Methods The present cross-sectional study was performed using the data of 8905 out of 10,065 participants in the RaNCD study in Iran. According to the mean self-reported duration of mobile phone usage (min/day) over the previous 12 months, all users were divided into four groups. The first and fourth groups had the least and most time using mobile phones respectively. The relationship between blood pressure and the duration of mobile phone use was determined using univariate and multiple linear regression. Results Of 8905 participants aged 35–65 years, 1515 (17.0%) of them didn't use mobile phones. The minimum, maximum, and mean duration of self-reported mobile phone use between users were 3.4, 50.4, and 19.5 min/day, respectively. A decrease in women's systolic and diastolic blood pressure (SBP and DBP) and HR was observed by increasing the duration of mobile phone use. With adjustment for effective confounding factors, there was a significant negative association between SBP [-2.52 (-4.11, -0.94)], DBP [-1.86 (-2.83, -0.89)], and duration of mobile use. Conclusion In this study, a significant decreasing trend was found between SBP, DBP, and HR and higher mobile phone usage in women. Based on regression analysis, SBP, DBP, and duration of mobile phone use were associated negatively in those who used their phones for at least 8 h.

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Section: Discussioncontrasting

confidence: 94%

The association between self-reported mobile phone usage with blood pressure and heart rate: evidence from a cross-sectional study

et al. 2022

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“…Similarly, meta‐analyses were performed for two groups of studies ( n = 21) examining the relationship between social jetlag and accelerometer‐measured overall sedentary behaviour or screen media use by subjective measures. All of these studies were rated as moderate or high quality of evidence except one study (Nose et al, 2017). Pooled results of 12 studies found a small, negative association between chronotype and sedentary behaviour which was assessed mostly by self‐ or proxy‐report questionnaire (Figure 4a: r = −0.27; 95% CI: −0.36 to −0.18; I 2 = 94%; p < 0.001), indicating that morning type children and adolescents were less sedentary.…”

Section: Resultsmentioning

confidence: 99%

“…Similarly, meta-analyses were performed for two groups of studies (n = 21) examining the relationship between social jetlag and accelerometer-measured overall sedentary behaviour or screen media use by subjective measures. All of these studies were rated as moderate or high quality of evidence except one study (Nose et al, 2017).…”

Section: Chronotype and Sedentary Behaviourmentioning

confidence: 99%

Associations of social jetlag with physical activity and sedentary behaviour in children and adolescents: A systematic review and meta‐analysis

Huang

Feng

Zheng

et al. 2023

Journal of Sleep Research

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SummarySleep and daytime movement behaviours occur co‐dependently with each other within a finite 24 h day. Sleep parameters other than sleep duration, such as social jetlag and chronotype, have been linked to health problems and unhealthy behaviours among children and adolescents. Given the increasing number of studies examining sleep timing/chronotype and weight‐related behaviours, including physical activity and sedentary behaviour, in the past decade, this systematic review and meta‐analysis collated and evaluated the evidence on the relationships of social jetlag and chronotype with physical activity and sedentary behaviour among children and adolescents aged 3–17 years. Seven databases were searched on 16 March 2022, and 52 studies were identified as eligible for inclusion, 47 of which were suitable for the meta‐analysis. A positive association was found between social jetlag and screen media use (r = 0.14, 95% CI: 0.04–0.24; I2 = 96%; p = 0.008). The morning chronotype was associated with a higher level of physical activity and a lower level of sedentary behaviour than the evening chronotype. No relationship was found between social jetlag and physical activity. The magnitude of heterogeneity among the included studies was high. Further experimental studies are urgently required to understand how circadian preference or misalignment affects activity behaviours. Interventions to promote an active lifestyle in young populations should consider their circadian preference, especially among individuals with the evening chronotype.

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“…Children and adolescents seem to either participate regularly in high‐volume sports conditioning, and training programs, or fail to exercise at all, being relatively inactive, more likely obese or more strongly engaged with smart phones, electronic gaming, or social media substitutes than with exercise or sports activities. Both groups may experience similar exposure to environmental noises and pollutants [40, 46, 65, 73, 99, 112, 122, 139, 152]. High “techno stress” levels associated with portable computerized technologies can dysregulate the autonomic nervous and immune systems.…”

Section: Modern Threats To Cruciate Ligament Homeostasismentioning

confidence: 99%

“…A step in the right direction might be accomplished simply by substituting low demand tactical or strategy skills training, non‐impact aerobic conditioning, stretching, sensorimotor balance training, and neuromuscular control knee joint protection tasks at mid‐week for regular high‐intensity team or individual training. For the second step, the same technologies that deliver “techno stress” overloads [40, 65, 73, 99, 112, 122, 139, 152] may be used more prescriptively in conjunction with mindful meditative activities such as yoga and positive mental imagery to better regulate sympathetic nervous system‐mediated stress responses [49, 51, 103, 124].…”

Section: Modern Threats To Cruciate Ligament Homeostasismentioning

confidence: 99%

Cruciate ligament healing and injury prevention in the age of regenerative medicine and technostress: homeostasis revisited

Nyland

Huffstutler

Faridi

et al. 2019

Knee Surg Sports Traumatol Arthrosc

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Purpose This clinical concepts paper discusses the essential elements of cruciate ligament recuperation, micro-trauma repair, and remodeling. Methods Cruciate ligament mechanobiology and tissue heterogeneity, anatomy and vascularity, and synovial membrane and fluid functions are discussed in relationship to deficiency-induced inflammatory responses, nervous and immune system function, recuperation, repair and remodeling, and modern threats to homeostasis. Results Cruciate ligament surgical procedures do not appreciate the vital linked functions of the central, peripheral, and autonomic nervous systems and immune system function on knee ligament injury recuperation, micro-trauma repair, and remodeling. Enhanced knowledge of these systems could provide innovative ways to decrease primary non-contact knee injury rates and improve outcomes following reconstruction or primary repair. Conclusions Restoration of knee joint homeostasis is essential to cruciate ligament recuperation, micro-trauma repair, and remodeling. The nervous and immune systems are intricately involved in this process. Varying combinations of high-intensity training, under-recovery, technostress, and environmental pollutants (including noise) regularly expose many athletically active individuals to factors that abrogate the environment needed for cruciate ligament recuperation, micro-trauma repair, and remodeling. Current sports training practice, lifestyle psychobehaviors, and environmental factors combine to increase both primary non-contact knee injury risk and the nervous and immune system dysregulation that lead to poor sleep, increased anxiety, and poorly regulated hormone and cytokine levels. These factors may create a worst-case scenario leading to poor ligament recuperation, micro-trauma repair, and remodeling. Early recognition and modification of these factors may decrease knee ligament injury rates and improve cruciate ligament repair or reconstruction outcomes. Level of evidence V.

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Association of evening smartphone use with cardiac autonomic nervous activity after awakening in adolescents living in high school dormitories

Abstract: In this population, evening smartphone use may be associated with altered sleep-wake cycle and a diminished cardiac ANS activity after awakening could be affecting daytime activities.

Cited by 10 publications

References 28 publications

The association between self-reported mobile phone usage with blood pressure and heart rate: evidence from a cross-sectional study

The association between self-reported mobile phone usage with blood pressure and heart rate: evidence from a cross-sectional study

Associations of social jetlag with physical activity and sedentary behaviour in children and adolescents: A systematic review and meta‐analysis

Cruciate ligament healing and injury prevention in the age of regenerative medicine and technostress: homeostasis revisited

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