Int J Sports Med 2013; 34(07): 637-645
DOI: 10.1055/s-0032-1331771
Training & Testing
© Georg Thieme Verlag KG Stuttgart · New York

Muscle Oxygenation and Blood Volume Reliability during Continuous and Intermittent Running

M. Ihsan
1   School of Exercise and Health Sciences, Edith Cowan University, Perth, Australia
,
C. R. Abbiss
1   School of Exercise and Health Sciences, Edith Cowan University, Perth, Australia
,
M. Lipski
2   Institute for Exercise Science and Sports Informatics, German Sport University, Cologne, Germany
,
M. Buchheit
1   School of Exercise and Health Sciences, Edith Cowan University, Perth, Australia
3   ASPIRE, Academy for Sports Excellence, Sport Science, Doha, Qatar
,
G. Watson
4   School of Human Life Sciences, University of Tasmania, Launceston, Australia
› Author Affiliations
Further Information

Publication History



accepted after revision 12 February 2012

Publication Date:
22 March 2013 (online)

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Abstract

The reliability of near infrared spectroscopy derived tissue oxygenation index (TOI) and total haemoglobin concentration (tHb) were examined during continuous (CR) and interval (INT) running. In a repeated measures design, 10 subjects twice performed 30 min of CR at 70% of their peak treadmill velocity, followed by 10 bouts of INT at 100%. Between trial reliability of mean and amplitude changes in TOI and tHb during CR were determined. Muscle de-oxygenation and re-oxygenation rates during INT were calculated using 3 analytical methods; i) linear modelling, ii) minimum and maximum values during work/rest intervals, and iii) mean values during work/rest intervals. Reliability was assessed using coefficient of variation (CV; %). During CR, mean TOI was more reliable (3.5%) compared with TOI amplitude change (34.7%), while mean tHb (12%) was similar to both absolute (9.2%) and relative (10.2%) amplitude changes. During INT, de-oxygenation rates analysed via linear modelling produced the lowest CV (7.2%), while analysis using min-max values produced the lowest CV (9.3%) for re-oxygenation rates. In conclusion, while the variables demonstrated CVs lower than reported changes in training-induced adaptations and/or differences between athletes and controls (23– 450%), practitioners are encouraged to consider the advantages/disadvantages of each method when performing their analysis.