Linnamo whitepaper abstract_2010

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Linnamo whitepaper abstract_2010

  1. 1. Linnamo et al., Department of Biology of Physical Activity, University of Jyväskylä, FinlandFAM frequency response method as a tool to measure neuromuscular and physiological recovery after eccentric and concentric exercise    Baseline The purpose of this study was to examine if FAM observed between FAM and HR variables offrequency response method can be used as a tool which the strongest ones were with HF power andto measure neuromuscular and physiological LF power. FAM may also be sensitive to therecovery after eccentric and concentric exercise changes in vagal and symphatic activity of theperformed by cycling dynamometer. Twelve autonomous nervous system.healthy male volunteer test subjects participated to Most of the neuromuscular variables showed thatthe study. Both eccentric and concentric the effect of eccentric exercise was moremeasurement session consisted of five pronounced after eccentric than concentricmeasurement: pre-fatigue, post-fatigue, 2h after, exercise. Strongest correlations between2d after, and 7d after fatigue. neuromuscular and FAM variables were foundMeasurements were: after eccentric exercise in MVC whereas after 1. blood sample concentric exercise also variables related to power 2. orthostatic test; heart rate (HR) variability correlated with FAM. 3. neuromuscular measurements  Main findings of the study were as follows: 4. FAM measurementsResults  1. Eccentric exercise led to a longerThe results of this study shows significant recovery than concentric exercise whichchanges is leukocytes, lymphocytes, neutrophils, was seen most clearly in FAM variablesIL-6, TNF-alpha and cortisol especially and CK values.immediately after and two hours after the 2. Strongest correlations were foundexercise. FAM-variables were found to correlate between FAM variables and lymphocytesstrongly with some of the measured blood and neutrophiles immediately and 2h aftervariables, in particular with lymphocytes and after eccentric exerciseneutrophils which are inflammation markers 3. Several correlations were found 7d aftersuggesting that the changes observed with FAM concentric exercise which was not themay be sensitive to these markers. Serum CK case after eccentric exercise.after eccentric exercise was also found to be 4. There did not seem to be any majorcorrelated with FAM indicating that FAM may differences between the right and the leftalso be sensitive to muscle damage. side or between any single stimulation intensity.Neither exercise caused any major changes in HRvariables. However, several correlations were

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