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Uninterrupted prolonged sitting and arterial stiffness: moderating effect of prior aerobic exercise in physically active adults

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European Journal of Applied Physiology Aims and scope Submit manuscript

Abstract

Purpose

Prolonged sitting acutely increases arterial stiffness, with interruption strategies only providing limited success in offsetting these rises. Acute aerobic exercise is a potent stimulus to decrease arterial stiffness. However, limited information exists on the effectiveness of acute exercise to maintain arterial stiffness when performed prior to prolonged sitting, particularly within physically active individuals.

Methods

Using a randomized crossover design, 22 young, active individuals (50% female) performed two conditions 30 min of walking at 55–65% of heart rate reserve (EX) and 30 min of standing (STAND) followed by 2.5-h of sitting. Brachial-femoral (bfPWV) and femoral-ankle pulse wave velocity (faPWV) were assessed at Baseline, post-exercise and pre-sitting (Pre), and post-sitting (Post) as estimates of central and peripheral arterial stiffness, respectively.

Results

For bfPWV, no interaction, condition, or time effects were observed. For faPWV, an interaction was present (p < 0.001); compared to Baseline, there was a 6.1% decrease for EX (− 0.4 m/s, p < 0.001) and a 4.6% increase for STAND (0.3 m/s, p = 0.016) for STAND such that there was an 11.3% difference between conditions at Pre (0.7 m/s, p < 0.001). From Pre to Post, EX then increased by 11.7% (0.9 m/s p < 0.001) while STAND remained unchanged, resulting in no difference between conditions (0.1 m/s, p = 0.569).

Conclusions

While aerobic exercise resulted in a significant decrease in faPWV prior to sitting, the prior exercise bout did not confer a protective effect against the deleterious effects of uninterrupted sitting. Future work should investigate the combined effect of prior exercise and sitting interruption strategies on markers of arterial stiffness.

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Data availability

The data supporting the conclusions of this article can be made available by the authors, upon reasonable request.

Abbreviations

CVD:

Cardiovascular disease

PWV:

Pulse wave velocity

PAR-Q:

Physical activity readiness questionnaire

IPAQ-SF:

International physical activity questionnaire-short form

WHO:

World Health Organization

HR:

Heart rate

HRR:

Heart rate reserve

bfPWV:

Brachial-femoral pulse wave velocity

faPWV:

Femoral-ankle pulse wave velocity

MAP:

Mean arterial pressure

PTT:

Pulse transit time

D:

Arterial path length

SD:

Standard deviation

BMI:

Body mass index

RHR:

Resting heart rate

MVPA:

Moderate-vigorous physical activity

SBP:

Systolic blood pressure

DBP:

Diastolic blood pressure

ES:

Effect size

CI:

Confidence intervals

References

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Funding

This work was supported by the National Heart, Lung, and Blood Institute Grants R01 HL157187 and R01 HL162805A (both to LS).

Author information

Authors and Affiliations

Authors

Contributions

SR: Conceptualisation; Data Collection; Drafted Original Manuscript; Formal Analysis; Writing – Review and Editing. CP: Methodology; Formal Analysis; Writing – Review and Editing. LCB-F: Conceptualisation; Methodology; Writing – Review and Editing. KSO: Conceptualisation; Methodology; Writing – Review and Editing. LS: Conceptualisation; Methodology; Formal Analysis; Writing – Review and Editing. EDH: Conceptualisation; Methodology; Formal Analysis; Writing – Review and Editing.

Corresponding author

Correspondence to Erik D. Hanson.

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Conflict of interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Additional information

Communicated by I. Mark Olfert.

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Riley, S., Paterson, C., Bates-Fraser, L.C. et al. Uninterrupted prolonged sitting and arterial stiffness: moderating effect of prior aerobic exercise in physically active adults. Eur J Appl Physiol (2024). https://doi.org/10.1007/s00421-024-05419-0

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  • DOI: https://doi.org/10.1007/s00421-024-05419-0

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