Blar i Brage NIH på forfatter "Seynnes, Olivier R."
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Isokinetic resistance training combined with eccentric overload improves athletic performance and induces muscle hypertrophy in young ice hockey players
Horwath, Oscar; Paulsen, Gøran; Esping, Tobias; Seynnes, Olivier R.; Olsson, Monica Charlotte (Peer reviewed; Journal article, 2019)Objectives: To determine the combined effects of slow isokinetic resistance training and eccentric overload and compare it to traditional resistance training on strength, power, body composition and muscle hypertrophy in ... -
Local trauma in human patellar tendon leads to widespread changes in the tendon gene expression
Heinemeier, Katja M.; Lorentzen, Marc P.; Jensen, Jacob K.; Schjerling, Peter; Seynnes, Olivier R.; Narici, Marco V.; Kjaer, Michael (Journal article; Peer reviewed, 2016-05-01)Low cellular activity and slow tissue turnover in human tendon may prolong resolution of tendinopathy. This may be stimulated by moderate localized traumas such as needle penetrations, but whether this results in a widespread ... -
Low-Load Blood Flow Restriction and High-Load Resistance Training Induce Comparable Changes in Patellar Tendon Properties
Centner, Christoph; Jerger, Simon; Lauber, Benedikt; Seynnes, Olivier R.; Friedrich, Till; Lolli, David; Gollhofer, Albert; König, Daniel (Peer reviewed; Journal article, 2022)Introduction: Low-load resistance training with blood flow restriction (LL-BFR) has emerged as a viable alternative to conventional high-load (HL) resistance training regimens. Despite increasing evidence confirming ... -
Mechanical and material tendon properties in patients with proximal patellar tendinopathy
Wiesinger, Hans-Peter; Seynnes, Olivier R.; Kösters, Alexander; Müller, Erich; Rieder, Florian (Peer reviewed; Journal article, 2020)Introduction: The effect of chronic patellar tendinopathy on tissue function and integrity is currently unclear and underinvestigated. The aim of this cohort comparison was to examine morphological, material, and mechanical ... -
Mechanical properties of the patellar tendon in elite volleyball players with and without patellar tendinopathy
Helland, Christian; Bojsen-Møller, Jens; Raastad, Truls; Seynnes, Olivier R.; Moltubakk, Marie M.; Jakobsen, Vidar; Bahr, Roald (Journal article; Peer reviewed, 2013)Background: Although differences in mechanical properties between symptomatic and healthy tendons have been observed for the Achilles tendon, the impact of tendinopathy on patellar tendon mechanics is not fully documented. ... -
Musculoskeletal adaptations to strength training in frail elderly: A matter of quantity or quality?
Aas, Sigve Nyvik; Breit, Markus; Karsrud, Stian; Aase, Ole Jølle; Rognlien, Simen Helset; Cumming, Kristoffer Toldnes; Reggiani, Carlo; Seynnes, Olivier R.; Rossi, Andrea; Toniolo, Luana; Raastad, Truls (Peer reviewed; Journal article, 2020)Background The improvement in muscle strength generally exceeds the increase in muscle size following strength training in frail elderly, highlighting the complex aetiology of strength deficit in aging. The aim of this ... -
Physiological and functional evaluation of healthy young and older men and women: design of the European MyoAge study
McPhee, Jamie S.; Hogrel, Jean-Yves; Maier, Andrea B.; Seppet, Enn; Seynnes, Olivier R.; Sipilä, Sarianna; Bottinelli, Roberto; Barnouin, Yoann; Bijlsma, Astrid Y.; Gapeyeva, Helena; Maden-Wilkinson, Thomas M.; Meskers, Carel G.; Pääsuke, Mati; Sillanpää, Elina; Sentroth, Lauri; Butler-Browne, Gillian; Narici, Marco V.; Jones, David A. (Journal article; Peer reviewed, 2013-05-31)Within the European multi-centre MyoAge project, one workpackage was designed to investigate the contribution of age-related changes to muscle mass, contractile characteristics and neural control in relation to reductions ... -
Rate of force development relationships to muscle architecture and contractile behavior in the human vastus lateralis
Werkhausen, Amelie; Gløersen, Øyvind Nøstdahl; Nordez, Antoine; Paulsen, Gøran; Bojsen-Møller, Jens; Seynnes, Olivier R. (Peer reviewed; Journal article, 2022)In this study, we tested the hypotheses that (i) rate of force development (RFD) is correlated to muscle architecture and dynamics and that (ii) force–length–velocity properties limit knee extensor RFD. Twenty-one healthy ... -
Recovery from Achilles Tendon Repair: A Combination of Postsurgery Outcomes and Insufficient Remodeling of Muscle and Tendon
Stäudle, Benjamin; Seynnes, Olivier R.; Laps, Guido; Göll, Fabian; Brüggemann, Gert-Peter; Albracht, Kirsten (Peer reviewed; Journal article, 2021)Introduction: Achilles tendon rupture (ATR) patients have persistent functional deficits in the triceps surae muscle–tendon unit (MTU). The complex remodeling of the MTU accompanying these deficits remains poorly understood. ... -
Sarcolab pilot study into skeletal muscle’s adaptation to long-term spaceflight
Rittweger, Jörn; Albracht, Kirsten; Flück, Martin; Ruoss, Severin; Brocca, Lorenza; Longa, Emanuela; Moriggi, Manuela; Seynnes, Olivier R.; di Giulio, Irene; Tenori, Leonardo; Vignoli, Alessia; Capri, Miriam; Gelfi, Cecilia; Luchinat, Claudio; Franceschi, Claudio; Bottinelli, Roberto; Cerretelli, Paolo; Narici, Marco (Journal article; Peer reviewed, 2018)Spaceflight causes muscle wasting. The Sarcolab pilot study investigated two astronauts with regards to plantar flexor muscle size, architecture, and function, and to the underlying molecular adaptations in order to further ... -
Should we individualize training based on force-velocity profiling to improve physical performance in athletes?
Lindberg, Kolbjørn Andreas; Solberg, Paul André; Larsen, Tommy Mella; Abusdal, Gøran; Berntsen, Sveinung; Paulsen, Gøran; Sveen, Ole; Seynnes, Olivier R.; Bjørnsen, Thomas; Rønnestad, Bent R.; Frank, Martin Thorsen (Peer reviewed; Journal article, 2021)The present study aimed to examine the effectiveness of an individualized training program based on force-velocity (FV) profiling on jumping, sprinting, strength, and power in athletes. Forty national level team sport ... -
Similar patterns of tendon regional hypertrophy after low-load blood flow restriction and high-load resistance training
Centner, Christoph; Jerger, Simon; Lauber, Benedikt; Seynnes, Olivier R.; Friedrich, Till; Lolli, David; Gollhofer, Albert; König, Daniel (Peer reviewed; Journal article, 2023)Purpose: Recent evidence indicates that low-load blood flow restriction (LL-BFR) training elicits an anabolic response in tendinous tissue. The purpose of the present study was to investigate the hypertrophic pattern induced ... -
Simple muscle architecture analysis (SMA): An ImageJ macro tool to automate measurements in B-mode ultrasound scans
Seynnes, Olivier R.; Cronin, Neil J. (Peer reviewed; Journal article, 2020)In vivo measurements of muscle architecture (i.e. the spatial arrangement of muscle fascicles) are routinely included in research and clinical settings to monitor muscle structure, function and plasticity. However, in most ... -
Single muscle fibre contractile properties differ between body-builders, power athletes and control subjects
Meijer, J.P; Jaspers, R.T.; Rittweger, Jörn; Seynnes, Olivier R.; Kamandulis, Sigitas; Brazaitis, M.; Skurvydas, A.; Pisot, Rado; Šimunič, Boštjan; Narici, Maco V.; Degens, Hans (Journal article; Peer reviewed, 2015-11-17)What is the central question of this study? Do the contractile properties of single muscle fibres differ between body-builders, power athletes and control subjects? •What is the main finding and its importance? Peak ... -
Skeletal muscle adaptations to physical inactivity and subsequent retraining in young men
Campbell, Emma-Louise; Seynnes, Olivier R.; Bottinelli, R.; McPhee, Jamie S.; Atherton, P. J.; Jones, D. A.; Butler-Browne, Gillian; Narici, Maco V. (Journal article; Peer reviewed, 2013-05-12)Skeletal muscle structure and function are markedly affected by chronic disuse. With unloading, muscle mass is lost at rate of about 0.4 %/day but little is known about the recovery of muscle mass and strength following ... -
Sport-specific capacity to use elastic energy in the patellar and Achilles tendons of elite athletes
Wiesinger, Hans-Peter; Rieder, Florian; Kösters, Alexander; Müller, Erich; Seynnes, Olivier R. (Journal article; Peer reviewed, 2017)Introduction: During running and jumping activities, elastic energy is utilized to enhance muscle mechanical output and efficiency. However, training-induced variations in tendon spring-like properties remain under-investigated. ... -
Strength training and protein supplementation improve muscle mass, strength, and function in mobility-limited older adults: a randomized controlled trial
Aas, Sigve Nyvik; Seynnes, Olivier R.; Benestad, Haakon Breien; Raastad, Truls (Peer reviewed; Journal article, 2019)Background Adaptation to strength training in very old mobility-limited individuals is not fully characterized. Therefore, the aim of this study was to perform a thorough investigation of the adaptation to a lower body ... -
Structure and function of human muscle fibres and muscle proteome in physically active older men
Brocca, Lorenza; McPhee, Jamie; Longa, Emanuela; Canepari, Monica; Seynnes, Olivier R.; de Vito, Giuseppe; Pellegrino, Maria A.; Narici, Marco; Bottinelli, Roberto (Journal article; Peer reviewed, 2017)Contradictory results have been reported on the impact of ageing on structure and functions of skeletal muscle fibres, likely to be due to a complex interplay between ageing and other phenomena such as disuse and diseases. ... -
Training Strategies to Improve Muscle Power: Is Olympic-style Weightlifting Relevant?
Helland, Christian; Hole, Eirik; Olsson, Monica Charlotte; Seynnes, Olivier R.; Solberg, Paul André; Paulsen, Gøran (Journal article; Peer reviewed, 2016)Introduction: This efficacy study investigated the effects of (1) Olympic-style weightlifting (OWL), (2) motorized strength and power training (MSPT), and (3) free weight strength and power training (FSPT) on muscle power. ... -
Training strategies to improve muscle power: Is Olympic-style weightlifting relevant?
Helland, Christian; Hole, Eirik; Iversen, Erik; Olsson, Monica Charlotte; Seynnes, Olivier R.; Solberg, Paul André; Paulsen, Gøran (Journal article; Peer reviewed, 2017)Introduction: This efficacy study investigated the effects of 1) Olympic-style weightlifting (OWL), 2) motorized strength and power training (MSPT), and 3) free weight strength and power training (FSPT) on muscle power. ...