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Sökning: onr:"swepub:oai:gup.ub.gu.se/201539" > Heart Rate and Its ...

Heart Rate and Its Variability in Response to Running-Associations with Troponin

Aagaard, P (författare)
Sahlen, A (författare)
Bergfeldt, L (författare)
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Braunschweig, F, (författare)
Karolinska Institutet, Department of Medicine, Solna
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Göteborgs universitet Sahlgrenska akademin. Institutionen för medicin, avdelningen för molekylär och klinisk medicin. 
2014
Engelska.
Ingår i: Medicine and Science in Sports and Exercise. - 0195-9131. ; 46:8, s. 1624-1630
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Purpose: The objective of this study is to investigate the time course of autonomic tone changes after a first-time endurance running race participation and associations with postexertional high-sensitivity troponin (hsTnT) levels in middle-aged males. Methods: Male (n = 42) first-time long-distance running race (Lidingoloppet 30 km) participants >= 45 yr (50.5 +/- 5) were examined. HR and HR variability (HRV) in the time domain (SDANN) was measured continuously from 2 d before to 4 d after the race using a wireless cardiovascular monitor that also recorded arrhythmia episodes. In addition, subjects were assessed pre- and postrace by medical history and physical examination, 12-lead ECG, blood tests including hsTnT, and echocardiography. Results: Compared with corresponding prerace values, nighttime (2: 00-4: 00 a.m.) HR was significantly elevated (63.6 +/- 9.4 vs 53.9 +/- 8.3 bpm, P < 0.001) on the first night postrace, whereas HRV remained reduced for a median of 64 h (interquartile range, 51-102 h). A prolonged HR recovery period (r = 0.48, P = 0.005) and a larger reduction in postrace HRV (r = -0.49, P = 0.003) correlated with higher postrace hsTnT levels. The association between reduced HRV and higher hsTnT remained significant after multivariate analysis (A = -0.48, P = 0.01). No sustained ventricular arrhythmias were recorded, but atrial fibrillation occurred in two subjects. Conclusion: Endurance running race participation caused a prolonged alteration of autonomic tone. More marked and prolonged changes were associated with higher levels of hsTnT, suggesting that the magnitude of troponin increase after strenuous exercise may reflect the magnitude of exercise-induced cardiovascular stress.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kardiologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)

Nyckelord

HEART RATE
HEART RATE VARIABILITY
HEART RATE RECOVERY
EXERCISE
MASTER ATHLETES
PHYSICAL-ACTIVITY
T RELEASE
VENTRICULAR DYSFUNCTION
SCIENTIFIC
STATEMENT
ATRIAL-FIBRILLATION
AMERICAN-COLLEGE
OF-CARDIOLOGY
YOUNG
MEN
EXERCISE
MORTALITY
Sport Sciences
X SM
1971
ANNALS OF CLINICAL RESEARCH
V3
P404

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Av författaren/redakt...
Aagaard, P
Sahlen, A
Bergfeldt, L
Braunschweig, F
Om ämnet
MEDICIN OCH HÄLSOVETENSKAP
MEDICIN OCH HÄLS ...
och Klinisk medicin
och Kardiologi
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Medicine and Sci ...
Av lärosätet
Karolinska Institutet
Göteborgs universitet

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