Contraction mode and whey protein intake affect the synthesis rate of intramuscular connective tissue

Lars Holm, Stine Klejs Rahbek, Jean Farup, Mikkel Holm Vendelbo, Kristian Vissing

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

IntroductionIn this study we investigated the impact of whey protein hydrolysate and maltodextrin (WPH) intake on intramuscular connective tissue (IMCT) protein fractional synthesis rate (FSR) after maximal shortening and lengthening contractions.Methods Twenty young men were randomized to receive either WPH or maltodextrin [carbohydrate (CHO)] immediately after completion of unilateral shortening and lengthening knee extensions. Ring-13C6-phenylalanine was infused, and muscle biopsies were obtained. IMCT protein FSR was measured at 1–5, as well as 1–3 and 3–5 hours after contractions and nutrient intake.Results During the 1–3-hour recovery, lengthening contractions resulted in a higher FSR than shortening contractions (P 
Original languageEnglish
Pages (from-to)128-130
Number of pages3
JournalMuscle & Nerve
Volume55
Issue number1
Early online date26 Sep 2016
DOIs
Publication statusPublished - Jan 2017

Keywords

  • muscle collagen
  • resistance exercise
  • concentric contraction
  • eccentric contraction
  • fractional synthesis rate
  • milk protein

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