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Erschienen in: European Journal of Applied Physiology 3/2019

23.01.2019 | Original Article

Circulating angiogenic cell response to sprint interval and continuous exercise

verfasst von: Louis O’Carroll, Bruce Wardrop, Ronan P. Murphy, Mark D. Ross, Michael Harrison

Erschienen in: European Journal of Applied Physiology | Ausgabe 3/2019

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Abstract

Introduction

Although commonly understood as immune cells, certain T lymphocyte and monocyte subsets have angiogenic potential, contributing to blood vessel growth and repair. These cells are highly exercise responsive and may contribute to the cardiovascular benefits seen with exercise.

Purpose

To compare the effects of a single bout of continuous (CONTEX) and sprint interval exercise (SPRINT) on circulating angiogenic cells (CAC) in healthy recreationally active adults.

Methods

Twelve participants (aged 29 ± 2 years, BMI 25.5 ± 0.9 kg m− 2, \(\dot {V}{{\text{O}}_2}\)peak 44.3 ± 1.8 ml kg− 1 min− 1; mean ± SEM) participated in the study. Participants completed a 45-min bout of CONTEX at 70% peak oxygen uptake and 6 × 20 s sprints on a cycle ergometer, in a counterbalanced design. Blood was sampled pre-, post-, 2 h and 24 h post-exercise for quantification of CAC subsets by whole blood flow cytometric analysis. Angiogenic T lymphocytes (TANG) and angiogenic Tie2-expressing monocytes (TEM) were identified by the expression of CD31 and Tie2, respectively.

Results

Circulating (cells µL− 1) CD3+CD31+ TANG increased immediately post-exercise in both trials (p < 0.05), with a significantly greater increase (p < 0.05) following SPRINT (+ 57%) compared to CONTEX (+ 14%). Exercise increased (p < 0.05) the expression of the chemokine receptor CXCR4 on TANG at 24 h. Tie2-expressing classical (CD14++CD16), intermediate (CD14++CD16+) and non-classical (CD14+CD16++) monocytes and circulating CD34+CD45dim progenitor cells were higher post-exercise in SPRINT, but unchanged in CONTEX. All post-exercise increases in SPRINT were back to pre-exercise levels at 2 h and 24 h.

Conclusion

Acute exercise transiently increases circulating TANG, TEM and progenitor cells with greater increases evident following very high intensity sprint exercise than following prolonged continuous paced endurance exercise.
Literatur
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Metadaten
Titel
Circulating angiogenic cell response to sprint interval and continuous exercise
verfasst von
Louis O’Carroll
Bruce Wardrop
Ronan P. Murphy
Mark D. Ross
Michael Harrison
Publikationsdatum
23.01.2019
Verlag
Springer Berlin Heidelberg
Erschienen in
European Journal of Applied Physiology / Ausgabe 3/2019
Print ISSN: 1439-6319
Elektronische ISSN: 1439-6327
DOI
https://doi.org/10.1007/s00421-018-04065-7

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