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Interaction between physical activity and television time on blood pressure level : Cross-sectional data from 45 000 individuals

Beijer, Kristina ; Lampa, Erik ; Sundström, Johan ; Nilsson, Peter M. LU ; Elmståhl, Sölve LU ; Pedersen, Nancy L. and Lind, Lars (2018) In Journal of Hypertension 36(5). p.1041-1050
Abstract

Objectives: The aim was to investigate if there is an interaction between sitting time and leisure time physical activity on blood pressure and if there are age differences and sex differences in this respect. Methods: Linear regression analysis on cross-sectional data was performed in more than 45 000 men and women from two Swedish cohort studies, EpiHealth (45-75 years) and LifeGene (18-45 years). Self-reported leisure time physical activity was given in five levels from low (level 1) to vigorous physical activity (level 5) and television time was used as a proxy measure of sitting time. Results: High physical activity was associated with lower DBP (P = 0.001), but not SBP. Active middle-aged men had lower DBP (-1.1 mmHg; 95% CI -1.7... (More)

Objectives: The aim was to investigate if there is an interaction between sitting time and leisure time physical activity on blood pressure and if there are age differences and sex differences in this respect. Methods: Linear regression analysis on cross-sectional data was performed in more than 45 000 men and women from two Swedish cohort studies, EpiHealth (45-75 years) and LifeGene (18-45 years). Self-reported leisure time physical activity was given in five levels from low (level 1) to vigorous physical activity (level 5) and television time was used as a proxy measure of sitting time. Results: High physical activity was associated with lower DBP (P = 0.001), but not SBP. Active middle-aged men had lower DBP (-1.1 mmHg; 95% CI -1.7 to -0.4) compared with inactive participants. Prolonged television time was associated with higher SBP (P < 0.001) and DBP (P = 0.011) in both sexes and in most age groups. Watching 3 h instead of 1 h television per day was associated with higher SBP in middle-aged women (SBP: 1.1 mmHg; 95% CI 0.7-1.4) and men (SBP: 1.2 mmHg; 95% CI 0.8-1.6). Only in young men, a high physical activity (level 4 instead of level 1) could compensate for a prolonged television time (3 h per day) in terms of DBP. Conclusion: Prolonged television time was associated with higher SBP and DBP in both sexes and at most ages, whereas an increased physical activity was mainly associated with a lower DBP. Only in young men, a high physical activity could compensate for prolonged television time regarding DBP.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
blood pressure, cross sectional analysis, epidemiology, exercise, physical activity, sitting time, television time
in
Journal of Hypertension
volume
36
issue
5
pages
10 pages
publisher
Lippincott Williams & Wilkins
external identifiers
  • scopus:85045135884
  • pmid:29369146
ISSN
0263-6352
DOI
10.1097/HJH.0000000000001675
language
English
LU publication?
yes
id
6844dcd9-7fb9-409f-aed7-2928594cdbb4
date added to LUP
2018-04-17 13:52:52
date last changed
2021-08-18 02:19:06
@article{6844dcd9-7fb9-409f-aed7-2928594cdbb4,
  abstract     = {<p>Objectives: The aim was to investigate if there is an interaction between sitting time and leisure time physical activity on blood pressure and if there are age differences and sex differences in this respect. Methods: Linear regression analysis on cross-sectional data was performed in more than 45 000 men and women from two Swedish cohort studies, EpiHealth (45-75 years) and LifeGene (18-45 years). Self-reported leisure time physical activity was given in five levels from low (level 1) to vigorous physical activity (level 5) and television time was used as a proxy measure of sitting time. Results: High physical activity was associated with lower DBP (P = 0.001), but not SBP. Active middle-aged men had lower DBP (-1.1 mmHg; 95% CI -1.7 to -0.4) compared with inactive participants. Prolonged television time was associated with higher SBP (P &lt; 0.001) and DBP (P = 0.011) in both sexes and in most age groups. Watching 3 h instead of 1 h television per day was associated with higher SBP in middle-aged women (SBP: 1.1 mmHg; 95% CI 0.7-1.4) and men (SBP: 1.2 mmHg; 95% CI 0.8-1.6). Only in young men, a high physical activity (level 4 instead of level 1) could compensate for a prolonged television time (3 h per day) in terms of DBP. Conclusion: Prolonged television time was associated with higher SBP and DBP in both sexes and at most ages, whereas an increased physical activity was mainly associated with a lower DBP. Only in young men, a high physical activity could compensate for prolonged television time regarding DBP.</p>},
  author       = {Beijer, Kristina and Lampa, Erik and Sundström, Johan and Nilsson, Peter M. and Elmståhl, Sölve and Pedersen, Nancy L. and Lind, Lars},
  issn         = {0263-6352},
  language     = {eng},
  month        = {05},
  number       = {5},
  pages        = {1041--1050},
  publisher    = {Lippincott Williams & Wilkins},
  series       = {Journal of Hypertension},
  title        = {Interaction between physical activity and television time on blood pressure level : Cross-sectional data from 45 000 individuals},
  url          = {http://dx.doi.org/10.1097/HJH.0000000000001675},
  doi          = {10.1097/HJH.0000000000001675},
  volume       = {36},
  year         = {2018},
}