61. Fundamental motor patterns in children aged 4-7 yearsRado Pišot, Nejc Šarabon, Giuliana Jelovčan, Matej Plevnik, Saša Pišot, Urška Čeklić, Tadeja Volmut, Petra Dolenc, Mitja Gerževič, Nina Mohorko, Katja Koren, Boštjan Šimunič, 2010, published scientific conference contribution Keywords: šport, motorika, gibalna/športna aktivnost, predšolski otroci, testiranja, meritve Published in RUP: 15.10.2013; Views: 7586; Downloads: 94 Link to full text |
62. Costamere remodeling with muscle loading and unloading in healthy young menRuowei Li, Marco Vincenzo Narici, Robert M. Erskine, Olivier Seynnes, Joern Rittweger, Rado Pišot, Boštjan Šimunič, M. Flück, 2013, original scientific article Keywords: costamere, atrophy, focal adhesion kinase, hypertrophy, physical inactivity, bed rest, skeletal muscle, myofibril, vinculin Published in RUP: 15.10.2013; Views: 3742; Downloads: 154 Link to full text |
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66. Skeletal muscle oxidative function in vivo and ex vivo in athletes with marked hypertrophy from resistance trainingDesy Salvadego, R. Domenis, Stefano Lazzer, Simone Porcelli, Joern Rittweger, Giovanna Rizzo, I. Mavelli, Boštjan Šimunič, Rado Pišot, Bruno Grassi, 2013, original scientific article Abstract: Oxidative function during exercise was evaluated in 11 young athletes with marked skeletal muscle hypertrophy induced by long-term resistance training (RTA, body mass 102.67.3 kg, meanSD) and 11 controls (CTRL, body mass 77.86.0). Pulmonary O2 uptake (V'O2) and vastus lateralis muscle fractional O2 extraction (by near-infrared spectroscopy) were determined during an incremental cycle ergometer (CE) and one-leg knee-extension (KE) exercise. Mitochondrial respiration was evaluated ex vivo by high-resolution respirometry in permeabilized vastus lateralis fibers obtained by biopsy. Quadriceps femoris muscle cross sectional area, volume (determined by magnetic resonance imaging) and strength were greater in RTA vs. CTRL (by ~40%, ~33% and ~20%, respectively). V'O2peak during CE was higher in RTA vs. CTRL (4.050.64 L min-1 vs. 3.560.30); no difference between groups was observed during KE. The O2 cost of CE exercise was not different between groups. When divided per muscle mass (for CE) or quadriceps muscle mass (for KE) V'O2peak was lower (by 15-20%) in RTA vs. CTRL. Vastus lateralis fractional O2 extraction was lower in RTA vs. CTRL at all work rates, both during CE and KE. RTA had higher ADP-stimulated mitochondrial respiration (56.723.7 pmolO2s-1mg-1 ww) vs. CTRL (35.710.2), and a tighter coupling of oxidative phosphorylation. In RTA the greater muscle mass and maximal force, and the enhanced mitochondrial respiration seem to compensate for the hypertrophy-induced impaired peripheral O2 diffusion. The net results are an enhanced whole body oxidative function at peak exercise, and unchanged efficiency and O2 cost at submaximal exercise, despite a much greater body mass Keywords: skeletal muscle, hypertrophy, mitochondrial respiration, oxidative metabolism, exercise Published in RUP: 15.10.2013; Views: 3989; Downloads: 151 Link to full text |
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68. Functional impairment of skeletal muscle oxidative metabolism during knee-extension exercise after bed restDesy Salvadego, Stefano Lazzer, Mauro Marzorati, Simone Porcelli, Enrico Rejc, Boštjan Šimunič, Rado Pišot, Pietro Enrico Di Prampero, Bruno Grassi, 2011, original scientific article Keywords: microgravity, muscle atrophy, physical deconditioning, exercise tolerance, near-infared spectroscopy, skeletal muscle, bed rest Published in RUP: 15.10.2013; Views: 3883; Downloads: 215 Link to full text |
69. New onset of constipation during long-term physical inactivityPaola Iovino, Giuseppe Chiarioni, Giancarlo Bilancio, Massimo Cirillo, Igor B. Mekjavić, Rado Pišot, Carolina Ciacci, 2013, original scientific article Keywords: physical inactivity, bowel function, constipation, bed rest Published in RUP: 15.10.2013; Views: 4853; Downloads: 46 Link to full text |