Effectiveness of physical activity programs in enhancing sleep outcomes among adolescents: a systematic review

Bello, Bashir; Mohammed, Jibril; Useh, Ushotanefe

doi:10.1007/s11325-022-02675-2

Cited by 5 publications

(8 citation statements)

References 27 publications

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“…During study protocol, no participants changed ordinary diet and physical activity. This point is crucial since intensive workout or diet changing may lead to an improving of reported quality of sleep [15]. Participants who reported only limited compliance (i.e., < 50%; n = 1) with the light therapy protocol were excluded from the data analysis.…”

Section: Resultsmentioning

confidence: 99%

Impact of light therapy on rotating night shift workers: the EuRhythDia study

et al. 2022

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Aims Disturbances in circadian rhythms may promote cardiometabolic disorders in rotating night shift workers (r-NSWs). We hypothesized that timed light therapy might reverse disrupted circadian rhythms and glucose intolerance observed among r-NSWs). Methods R-NSWs were randomly assigned to a protocol that included 12 weeks on followed by 12 weeks off light therapy (n = 13; 6 men; mean age, 39.5 ± 7.3 years) or a no-treatment control group (n = 9; 3 men; mean age 41.7 ± 6.3 years). Experimental and control participants underwent identical metabolic evaluations that included anthropometric, metabolic (including oral glucose tolerance tests), lipid, and inflammation-associated parameters together with an assessment of sleep quality and expression of circadian transcription factors REV-ERBα and BMAL1 in peripheral blood mononuclear cells (PBMCs) at baseline, 12 weeks, and 24 weeks of the protocol. Results Twelve weeks of warm white-light exposure (10,000 lx at 35 cm for 30 min per day) had no impact on sleep, metabolic, or inflammation-associated parameters among r-NSWs in the experimental group. However, our findings revealed significant decreases in REV-ERBα gene expression (p = 0.048) and increases in the REV-ERBα/BMAL1 ratio (p = 0.040) compared to baseline in PBMCs isolated from this cohort. Diminished expression of REV-ERBα persisted, although the REV-ERBα/BMAL1 ratio returned to baseline levels after the subsequent 12-day wash-out period. Conclusions Our results revealed that intermittent light therapy had no impact on inflammatory parameters or glucose tolerance in a defined cohort of r-NSWs. However, significant changes in the expression of circadian clock genes were detected in PBMCs of these subjects undergoing light therapy.

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Section: Resultsmentioning

confidence: 99%

Impact of light therapy on rotating night shift workers: the EuRhythDia study

et al. 2022

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“…Prior research demonstrates that acute and chronic physical activity interventions can improve sleep outcomes in adult populations, 38 but adolescent studies are lacking. Indeed, a recent review identified only two experimental studies examining the effects of physical activity interventions among adolescents, with both studies reporting improvements in sleep outcomes following the intervention period 19 . Notably, the included studies incorporated similar physical activity interventions (i.e., moderate‐vigorous intensity aerobic activity, delivered 5 days per week), which is in contrast to our intervention (i.e., vigorous‐intensity activity, delivered 2 days per week) and may partly explain the different study findings.…”

Section: Discussionmentioning

confidence: 99%

“…Notably, the included studies incorporated similar physical activity interventions (i.e., moderate‐vigorous intensity aerobic activity, delivered 5 days per week), which is in contrast to our intervention (i.e., vigorous‐intensity activity, delivered 2 days per week) and may partly explain the different study findings. At present, there is insufficient evidence among adolescents to determine the optimal dose of physical activity needed to improve sleep outcomes, however, there is some support for high frequency, moderate‐intensity physical activity 19 . To gain a greater understanding of how physical activity can benefit adolescents' sleep, more high‐quality RCTs that examine varying quantitative aspects of physical activity (e.g., frequency, intensity, time, and type) are needed 19 …”

Section: Discussionmentioning

confidence: 99%

“…18 Therefore, there is need for more experimental research examining the effects of physical activity interventions on sleep-related variables, particularly in adolescents where research is lacking. 19 Further, changes in sleep may also mediate changes in mental health as a result of physical activity, however more research is needed to support this hypothesis. To the best of our knowledge, no previous experimental studies have examined the mediating effects of sleep on older adolescents' mental health in the context of a physical activity intervention.…”

Section: Abstract Adolescent Mediation Mental Health Physical Activit...mentioning

confidence: 99%

“…However, given that the majority of included studies were cross‐sectional, causation cannot be determined and reverse causation is a possibility (i.e., sleep contributes to improvements in physical activity) 18 . Therefore, there is need for more experimental research examining the effects of physical activity interventions on sleep‐related variables, particularly in adolescents where research is lacking 19 . Further, changes in sleep may also mediate changes in mental health as a result of physical activity, however more research is needed to support this hypothesis.…”

Section: Introductionmentioning

confidence: 99%

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Mediating effects of sleep on mental health in older adolescents: Findings from the Burn 2 Learn randomized controlled trial

Leahy

Diallo

Eather

et al. 2023

Scandinavian Med Sci Sports

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PurposeOur study explored the mediating effect of sleep‐related variables on older adolescents' mental health in the context of a school‐based physical activity intervention.MethodsWe evaluated the Burn 2 Learn (B2L) intervention using a cluster randomized controlled trial, which included two cohorts. Participants for this sub‐study were from the second cohort, which included 292 older adolescents (16.0 ± 0.5 years) from 10 secondary schools in New South Wales, Australia. Teachers at intervention schools delivered two high‐intensity activity breaks (approximately 10 mins) per week to students during academic lessons. Participants completed measures of mental health (i.e., perceived stress and internalizing problems) and hypothesized mediators (i.e., sleep duration, sleep latency, awakenings, and daytime sleepiness) at baseline (February–April 2019) and post‐intervention (August–September 2019). Single mediation analyses were conducted to explore the potential mediating effects of sleep variables on mental health outcomes using a product‐of‐coefficient test.ResultsWe observed a small statistically significant effect for perceived stress (β = −0.11, SE = 0.034, p = 0.002), but not for internalizing problems (β = 0.02, SE = 0.051, p = 0.760). There were no significant intervention effects for sleep‐related variables. Several sleep‐related variables were associated with mental health outcomes but no mediated effects were found.ConclusionThe B2L intervention had a small beneficial effect on perceived stress, however our mediation analyses suggest this was not explained by changes in sleep‐related variables. Markers of sleep were associated with mental health constructs, highlighting the importance of sleep for good psychological health. However, in the context of a physical activity intervention, effects on mental health may be driven by other behavioral, neurobiological, or psychosocial mechanisms.

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