title: Relationship between muscle volume and contractile properties of the human knee extensors.
abstract: The present study was designed to investigate the relationship between volume and electrically evoked twitch properties of the quadriceps muscle. Supramaximal single and doublet stimulation of the femoral nerve was used to assess contractile properties at 45° and 80° knee flexion. Muscle volume was measured using a 1.5-Tesla magnetic resonance imaging scanner. Quadriceps muscle volume was only significantly correlated (r = 0.629) with peak twitch torque induced by doublet stimulation at 80° but not at 45° knee flexion.
authors.affiliation: a Institute of Sport Science, University of Rostock, Ulmenstraße 69, 18057 Rostock, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Behrens
authors.affiliation: b Department of Sport and Exercise Science, University of Stuttgart, Allmandring 28, 70569 Stuttgart, Germany.
authors.forename: Niklas
authors.initials: N
authors.lastname: Brown
authors.affiliation: b Department of Sport and Exercise Science, University of Stuttgart, Allmandring 28, 70569 Stuttgart, Germany.
authors.forename: Robert
authors.initials: R
authors.lastname: Bollinger
authors.affiliation: b Department of Sport and Exercise Science, University of Stuttgart, Allmandring 28, 70569 Stuttgart, Germany.
authors.forename: Dieter
authors.initials: D
authors.lastname: Bubeck
authors.affiliation: c Department of Orthopaedics, University Medicine Rostock, Doberaner Straße 142, 18057 Rostock, Germany.
authors.forename: Anett
authors.initials: A
authors.lastname: Mau-Moeller
authors.affiliation: a Institute of Sport Science, University of Rostock, Ulmenstraße 69, 18057 Rostock, Germany.
authors.forename: Matthias
authors.initials: M
authors.lastname: Weippert
authors.affiliation: a Institute of Sport Science, University of Rostock, Ulmenstraße 69, 18057 Rostock, Germany.
authors.forename: Volker
authors.initials: V
authors.lastname: Zschorlich
authors.affiliation: a Institute of Sport Science, University of Rostock, Ulmenstraße 69, 18057 Rostock, Germany.
authors.forename: Sven
authors.initials: S
authors.lastname: Bruhn
authors.affiliation: b Department of Sport and Exercise Science, University of Stuttgart, Allmandring 28, 70569 Stuttgart, Germany.
authors.forename: Wilfried
authors.initials: W
authors.lastname: Alt
mesh_terms: D000328:Adult; D015992:Body Mass Index; D004558:Electric Stimulation; D004576:Electromyography; D015444:Exercise; D005267:Femoral Nerve / Q000502:physiology; D006801:Humans; D007717:Knee / Q000502:physiology*; D007719:Knee Joint / Q000502:physiology*; D008297:Male; D009119:Muscle Contraction / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology; D052097:Quadriceps Muscle / Q000502:physiology*; D019415:Torque; D055815:Young Adult
keywords: doublet stimulation; electrical stimulation; moment de secousse de crête; muscle volume; peak twitch torque; quadriceps femoris muscle; quadriceps fémoral; single stimulation; stimulation double; stimulation simple; stimulation électrique; volume musculaire