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33. Internationale Konferenz für Elektrokardiographie

Internationale Konferenz für Elektrokardiographie

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Effect Of Average Physical Activity Prior To Myocardial Infarction On Exercise Tolerance With Treadmill Test In Patients Subjected To Cardiac Rehabilitation

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  • D. Kalka - Card. Rehabilitation Center, Wroclaw, Polen
  • corresponding author presenting/speaker M. Sobieszczanska - Pathophysiol. Dpt., Wroclaw Medical University, Wroclaw, Polen
  • W. Marciniak - Cardiology Dpt., Military Med. Inst, Warsaw, Polen
  • L. Markuszewski - Cardiology Clinic, Medical University, Lodz, Polen
  • A. Bielous-Wilk - Pathophysiol. Dpt., Wroclaw Medical University, Wroclaw, Polen
  • A. Bak - Card. Rehabilitation Center, Wroclaw, Polen
  • L. Rusiecki - Pathophysiol. Dpt., Wroclaw Medical University, Wroclaw, Polen
  • M. Mical-Strak - Pathophysiol. Dpt., Wroclaw Medical University, Wroclaw, Polen
  • R. Dobek - Int. Med. Allergol., Wroclaw Medical University, Wroclaw, Polen
  • K. Laszki-Szczachor - Pathophysiol. Dpt., Wroclaw Medical University, Wroclaw, Polen
  • J. Adamus - Cardiology Dpt., Military Med. Inst, Warsaw, Polen

33rd International Congress on Electrocardiology. Cologne, 28.06.-01.07.2006. Düsseldorf, Köln: German Medical Science; 2007. Doc06ice048

Die elektronische Version dieses Artikels ist vollständig und ist verfügbar unter: http://www.egms.de/de/meetings/ice2006/06ice048.shtml

Veröffentlicht: 8. Februar 2007

© 2007 Kalka et al.
Dieser Artikel ist ein Open Access-Artikel und steht unter den Creative Commons Lizenzbedingungen (http://creativecommons.org/licenses/by-nc-nd/3.0/deed.de). Er darf vervielfältigt, verbreitet und öffentlich zugänglich gemacht werden, vorausgesetzt dass Autor und Quelle genannt werden.

Gliederung

Text

Aim of the study was to investigate a relation between physical fitness profile presented by patients prior to MI and exercise tolerance assessed with duration of treadmill tests before and after cardiac rehabilitation.

Material and method: 52 professionally active patients with previous MI, under similar drug treatment, were analyzed. Echocardiography results – EF: 57.0±0.81%; LVDD: 52.3±0.6 mm; LVMI: 99.3±3.1 g/m2. Average physical activity profile was estimated retrospectively with a Framingham questionnaire covering ca. 20 years before MI. To assess activity related to work and leisure time, metabolic equivalents were used. 6-month rehabilitation comprised: 45-min cycloergometer training, 3x/week, and general improving exercises, 2x/week. Cycloergometer loads were given at 4-min intervals and interrupted by 2-min rest. Loads were increased by ca. 10 Watt for each interval, after every 10th training.

Results: Correlation between job activity (12–61 METs; mean: 36,37±1,18) and duration of initial (before rehabilitation) exercise tests lasting 211–960 s (mean: 628,7±24,9) was analyzed: Pearson’s coefficient 0.134 was statistically insignificant. Analogous correlation was analyzed for final (after rehabilitation) exercise tests lasting 308–1226 s (mean: 767.8±26.3): Pearson’s coefficient 0.059 was also insignificant. Then, duration of initial and final exercise tests was analyzed in relation to leisure time activity, falling into 8.0–49.5 METs (mean: 26,0±1,4). Pearson coefficients were statistically significant both for initial (r=0.297) and final exercise (r=0.299).

Conclusion: Results did not show correlation between job and exercise tests duration in patients with previous MI, for work activity involves monotypical muscle movements, not increasing endurance capability. Positive correlation found for leisure time is related mainly to fitness activity that gives optimal training effects and improves adaptation to exercise during cardiac rehabilitation.