The Relationship between Chronotype, Physical Activity and the Estimated Risk of Dementia in Community-Dwelling Older Adults

Thapa, Ngeemasara; Kim, Boram; Yang, Ja‐Gyeong; Park, Hye-Jin; Jang, Minwoo; Son, Haeun; Kim, Gwon-Min

doi:10.3390/ijerph17103701

Cited by 24 publications

(25 citation statements)

References 42 publications

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“…Sarcopenia-related factors, such as muscle mass, grip strength, and physical function, may be influenced by the MEQ scores and physical activity. Morningness has been shown to have higher daily physical activity than eveningness (17) and increased physical activity may result in higher muscle mass (18). However, in the present study, sarcopenia-related factors in healthy and obese subjects were not associated with the MEQ score or physical activity.…”

Section: Relationship Between Pattern and Timing Of Protein Intake And Sarcopenia-related Factorscontrasting

confidence: 74%

“…In the subjects requiring support in this study, we were not able to examine the effect of physical activity on muscle mass and strength because we were not able to sufficiently measure physical activity meters. However, it has been shown that the amount of daily physical activity is higher in morning-type people (17), and it is possible that the muscle Values are expressed as the mean ± standard error. † P < 0.05, compared to EPRO (Mann-Whitney).…”

Section: Differences In Protein Intake Balance and Sarcopenia-related Factors In Obese People And Those Requiring Supportmentioning

confidence: 99%

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Supplementation of Protein at Breakfast Rather Than at Dinner and Lunch Is Effective on Skeletal Muscle Mass in Older Adults

et al. 2021

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Background: The effects of different intake patterns of meal protein on muscle mass have not been clarified. We cross-sectionally and longitudinally examined the effect of different timing of protein intake on sarcopenia-related factors in older adults.Methods: This cross-sectional study 1 included 219 (male, n = 69, female, n = 150) elderly subjects aged ≥65 years. Subjects who consumed more protein at breakfast than at dinner were grouped into the morning group (MG, n = 76; male, n = 26; female, n = 50), and those who consumed more protein at dinner than at breakfast were grouped into the evening group (EG, n = 143; male, n = 43; female, n = 100). In cross-sectional study 2-1 (female, n = 125), the subjects were classified into four groups according to the number of meals with sufficient protein intake. In cross-sectional studies 2-2 (female, n = 125) and 2-3 (female, n = 27), the subjects were classified into eight groups and three groups according to whether they had consumed sufficient protein at three meals; sarcopenia-related factors were compared. The intervention study was a placebo-controlled, double-blind, randomized controlled trial that included 40 elderly women with low daily breakfast protein intake. The subjects were divided into four groups: morning protein and placebo intake groups and evening protein and placebo intake groups. Each group consumed the test food (containing 10 g milk protein) or placebo in the morning or evening for 12 weeks. Blood indices and physical function were assessed before and after the intervention.Results: Comparing all subjects, MG showed significantly higher handgrip strength than did EG (P < 0.05). The higher ratio of morning protein intake relative to the total protein intake, the better the muscle mass (r = 0.452, P < 0.05) and handgrip strength (r = 0.383, P < 0.05). The intervention study showed an increase in muscle mass with the intake of milk protein in the morning rather than in the evening (P < 0.05).Conclusions: Protein intake at breakfast might have relatively stronger effects on skeletal muscle mass than at lunch and dinner.

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Section: Relationship Between Pattern and Timing Of Protein Intake And Sarcopenia-related Factorscontrasting

confidence: 74%

Section: Differences In Protein Intake Balance and Sarcopenia-related Factors In Obese People And Those Requiring Supportmentioning

confidence: 99%

Supplementation of Protein at Breakfast Rather Than at Dinner and Lunch Is Effective on Skeletal Muscle Mass in Older Adults

et al. 2021

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“…In terms of marital satisfaction, chronotype also has a predictive role, with the morning chronotype having higher marital satisfaction ( Shareh and Eshaghi Sani, 2019 ). Chronotype has been associated with nervous system diseases such as dementia, fibromyalgia ( Thapa et al, 2020 ; Turkoglu and Selvi, 2020 ), and epilepsy ( Manni et al, 2016 ), or physiological factors such as adiposity ( Cespedes Feliciano et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Chronotype, circadian rhythm, and psychiatric disorders: Recent evidence and potential mechanisms

et al. 2022

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The circadian rhythm is crucial for physiological and behavioral functions. Chronotype, which represents individual preferences for activity and performance, is associated with human health issues, particularly psychiatric disorders. This narrative review, which focuses on the relationship between chronotype and mental disorders, provides an insight into the potential mechanism. Recent evidence indicates that (1) the evening chronotype is a risk factor for depressive disorders and substance use disorders, whereas the morning chronotype is a protective factor. (2) Evening chronotype individuals with bipolar disorder tend to have more severe symptoms and comorbidities. (3) The evening chronotype is only related to anxiety symptoms. (4) The relationship between chronotype and schizophrenia remains unclear, despite increasing evidence on their link. (5) The evening chronotype is significantly associated with eating disorders, with the majority of studies have focused on binge eating disorders. Furthermore, the underlying mechanisms or influence factors are described in detail, including clock genes, brain characteristics, neuroendocrinology, the light/dark cycle, social factors, psychological factors, and sleep disorders. These findings provide the latest evidence on chronotypes and psychiatric disorders and serve as a valuable reference for researchers.

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“…However, its exact etiology and pathogenesis are still unclear. AD is the fourth largest cause of death in older adults after cancer, heart disease, and cerebrovascular disease [ 3, 4 ], whose single most important non-modifiable risk factor is age [ 5 ]. The increasing incidence of AD and the huge associated social and economic burden have stimulated research into multiple protective factors to prevent the occurrence and development of this neurodegenerative disease.…”

Section: Introductionmentioning

confidence: 99%

Physical Activity and Cognition in Sedentary Older Adults: A Systematic Review and Meta-Analysis

Zhao

Wang

et al. 2022

JAD

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Background: Epidemiologic evidence suggests that physical activity benefits cognition, but results from randomized trials in sedentary individuals are limited and inconsistent. Objective: To evaluate the effects of physical activity on cognition among sedentary older adults. Objective: A systematic literature search for eligible studies published up to January 1, 2021, was performed on six international (PubMed, Cochrane Library, Web of Science, Sinomed, FMRS, and OVID) and three Chinese databases (Wanfang, China National Knowledge Infrastructure, and VIP). We estimated the effect of physical activity on the cognition of sedentary elderly by standardized mean differences (SMD) and 95% confidence intervals (CI) using a random-effects model. We evaluated publication bias using funnel plots and heterogeneity using I2 statistics. Subgroup analyses were conducted by baseline cognition, intervention duration, activity type, and country. Results: Seven randomized controlled trials (RCTs) comprising 321 (experimental group, 164; control group, 157) sedentary older adults were included in the meta-analysis. Physical activity significantly improved cognition in sedentary elderly adults compared with controls (SMD: 0.50, 95% CI:0.09–0.92). Subgroup analyses showed significant effects of baseline cognition impairment (SMD: 9.80, 95% CI: 5.81–13.80), intervention duration > 12 weeks (SMD: 2.85, 95% CI: 0.73–4.96), aerobic exercise (SMD: 0.74, CI: 0.19–1.29), and countries other than the United States (SMD: 10.50, 95% CI: 7.08–13.92). Conclusion: Physical activity might have a general positive effect on the cognition of sedentary older adults. Intervention > 12 weeks and aerobic exercise can effectively delay their cognitive decline; however, more rigorous RCTs are needed to support our findings.

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The Relationship between Chronotype, Physical Activity and the Estimated Risk of Dementia in Community-Dwelling Older Adults

Cited by 24 publications

References 42 publications

Supplementation of Protein at Breakfast Rather Than at Dinner and Lunch Is Effective on Skeletal Muscle Mass in Older Adults

Supplementation of Protein at Breakfast Rather Than at Dinner and Lunch Is Effective on Skeletal Muscle Mass in Older Adults

Chronotype, circadian rhythm, and psychiatric disorders: Recent evidence and potential mechanisms

Physical Activity and Cognition in Sedentary Older Adults: A Systematic Review and Meta-Analysis

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