Association of Television Viewing Time With Central Hemodynamic Parameters and the Radial Augmentation Index in Adults

Recio-Rodríguez, José I; Gómez‐Marcos, Manuel A.; Patino-Alonso, María C.; Romaguera-Bosch, Montserrat; Grandes, Gonzalo; Menendez-Suarez, Marta; Lema-Bartolomé, Jorge; Gonzalez-Viejo, Natividad; Agudo‐Conde, Cristina

doi:10.1093/ajh/hps071

Cited by 25 publications

(22 citation statements)

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“…Edwards et al [10] found physical activity to be associated to PWV and to the central augmentation index (CAIx) in adolescents and young adults. RecioRodriguez et al [11] published the time spent watching television to be directly correlated to the peripheral augmentation index (PAIx) in adults. On the other hand, Madura et al [12] showed that the changes in arterial stiffness parameters due to aerobic exercise are reversible.…”

Section: Introductionmentioning

confidence: 99%

Relationship between objectively measured physical activity and vascular structure and function in adults

et al. 2014

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Section: Introductionmentioning

confidence: 99%

Relationship between objectively measured physical activity and vascular structure and function in adults

et al. 2014

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“…Preclinical studies have shown that sedentary time is associated with lipoprotein lipase activity, a protein involved in plasma triglyceride catabolism, HDL cholesterol, and other metabolic risk factors (24). A study on vascular aging found that increasing television viewing time directly correlated with an increase in peripheral augmentation index, a marker of arterial stiffness (25). …”

Section: Discussionmentioning

confidence: 99%

Television Viewing Time, Physical Activity, and Mortality Among African Americans

et al. 2018

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BackgroundProlonged television viewing time, a marker of sedentary activity, is independently associated with increased all-cause mortality; however, this association has rarely been studied in African Americans. The objective of our study was to examine the association between television viewing time and mortality among African Americans by using data from the Jackson Heart Study (JHS).MethodsWe studied 5,289 participants from the JHS study who reported television viewing time (h/day) in the JHS baseline questionnaire from 2000 through 2004. Using multivariable Cox regression models adjusted for age, sex, smoking, alcohol use, physical activity, nutrition, prevalent coronary heart disease, chronic kidney disease, diabetes, and hypertension, we computed hazard ratios to examine the association between television viewing time (≤2 h/day, 2–4 h/day, and ≥4 h/day) and mortality.ResultsParticipants had a mean age of 55 years, and 64% were women. After a median follow-up of 9.9 years (interquartile range, 9.0–10.7), 615 deaths occurred (data analysis conducted in 2017). Hazard ratios for mortality were 1.08 (0.86–1.37) for television time of 2 to 4 hours per day and 1.48 (95% CI: 1.19–1.83) for television time of greater than or equal to 4 hours per day when compared with those who watched television less than 2 hours per day (P trend = .002). When we restricted analyses to those who performed leisure-time activities, the hazard ratios for mortality were 1.10 (95% CI, 0.84–1.45) for television viewing of 2 to 4 hours per day and 1.45 (95% CI, 1.13–1.86) for more than 4 hours per day compared with the less than 2 hours per day.ConclusionOur findings suggest that greater television viewing time, even among those who perform leisure-time physical activities, is associated with increased all-cause mortality among African Americans. Thus, it may serve as an indicator of a sedentary lifestyle with potential for intervention.

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“…Specifically, less physical activity or prolonged sedentarism was associated to greater aging of the vascular system [10,68]. …”

Section: Discussionmentioning

confidence: 99%

“…However, the results are even more relevant on combining the time spent seated (6 hours a day) with low physical activity (< 24.5 METS/hours/week), yielding a relative risk (RR) of 1.94 (95% confidence interval (95% CI): 1.70-2.20) for women and 1.48 (95% CI: 1.33-1.65) for males, as opposed to those who spend less time seated and have greater activity [9]. The EVIDENT study has also found increased arterial stiffness to be related to the number of hours spent watching television [10]. On the other hand, physical activity shows an inverse correlation to the concentrations of fibrinogen [11].…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of a smartphone application for improving healthy lifestyles, a randomized clinical trial (EVIDENT II): study protocol

et al. 2014

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BackgroundNew technologies could facilitate changes in lifestyle and improve public health. However, no large randomized, controlled studies providing scientific evidence of the benefits of their use have been made. The aims of this study are to develop and validate a smartphone application, and to evaluate the effect of adding this tool to a standardized intervention designed to improve adherence to the Mediterranean diet and to physical activity. An evaluation is also made of the effect of modifying habits upon vascular structure and function, and therefore on arterial aging.Methods/DesignA randomized, double-blind, multicenter, parallel group clinical trial will be carried out. A total of 1215 subjects under 70 years of age from the EVIDENT trial will be included. Counseling common to both groups (control and intervention) will be provided on adaptation to the Mediterranean diet and on physical activity. The intervention group moreover will receive training on the use of a smartphone application designed to promote a healthy diet and increased physical activity, and will use the application for three months. The main study endpoints will be the changes in physical activity, assessed by accelerometer and the 7-day Physical Activity Recall (PAR) interview, and adaptation to the Mediterranean diet, as evaluated by an adherence questionnaire and a food frequency questionnaire (FFQ). Evaluation also will be made of vascular structure and function based on central arterial pressure, the radial augmentation index, pulse velocity, the cardio-ankle vascular index, and carotid intima-media thickness.DiscussionConfirmation that the new technologies are useful for promoting healthier lifestyles and that their effects are beneficial in terms of arterial aging will have important clinical implications, and may contribute to generalize their application in favor of improved population health.Trial registrationClinical Trials.gov Identifier: NCT02016014

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Association of Television Viewing Time With Central Hemodynamic Parameters and the Radial Augmentation Index in Adults

Abstract: Television viewing time was directly correlated with PAIx75 in an adult population. This correlation was maintained even after adjustment for physical activity, age, sex, and other cardiovascular risk factors.

Cited by 25 publications

References 36 publications

Relationship between objectively measured physical activity and vascular structure and function in adults

Relationship between objectively measured physical activity and vascular structure and function in adults

Television Viewing Time, Physical Activity, and Mortality Among African Americans

Effectiveness of a smartphone application for improving healthy lifestyles, a randomized clinical trial (EVIDENT II): study protocol

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