Expression of extracellular matrix components and related growth factors in human tendon and muscle after acute exercise

K M Heinemeier, S S Bjerrum, P Schjerling, M Kjaer

77 Citations (Scopus)

Abstract

Acute kicking exercise induces collagen synthesis in both tendon and muscle in humans, but it is not known if this relates to increased collagen transcription and if other matrix genes are regulated. Young men performed 1 h of one-leg kicking at 67% of max workload. Biopsies were taken from the patellar tendon and vastus lateralis muscle of each leg at 2 (n = 10), 6 (n = 11), or 26 h (n = 10) after exercise. Levels of messenger ribonucleic acid mRNA for collagens, noncollagenous matrix proteins, and growth factors were measured with real-time reverse transcription polymerase chain reaction. In tendon, gene expression was unchanged except for a decrease in insulin-like growth factor-IEa (IGF-IEa; P 
Original languageEnglish
JournalScandinavian journal of medicine & science in sports
Volume23
Issue number3
Pages (from-to)e150-61
ISSN0905-7188
DOIs
Publication statusPublished - Jun 2013

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