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153 results on '"Giuriato, Gaia"'

7. Limb, sex, but not acute dietary capsaicin, modulate the near‐infrared spectroscopy‐vascular occlusion test estimate of muscle metabolism

Author

Greaves, Lauren M., primary, Zaleski, Kendall S., additional, Matias, Alexs A., additional, Gyampo, Abena O., additional, Giuriato, Gaia, additional, Lynch, Meaghan, additional, Lora, Brian, additional, Tomasi, Tawn, additional, Basso, Emma, additional, Finegan, Emma, additional, Schickler, Jack, additional, Venturelli, Massimo, additional, DeBlauw, Justin A., additional, Shostak, Elena, additional, Blum, Oliver E., additional, and Ives, Stephen J., additional

Published
2024
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9. Skeletal muscle fiber type and TMS-induced muscle relaxation in unfatigued and fatigued knee-extensor muscles.

Author

Barbi, Chiara, Temesi, John, Giuriato, Gaia, Laginestra, Fabio Giuseppe, Martignon, Camilla, Moro, Tatiana, Schena, Federico, Venturelli, Massimo, and Vernillo, Gianluca

Subjects
SKELETAL muscle, KNEE, TRANSCRANIAL magnetic stimulation, FATIGUE limit, MUSCLE fatigue, EXTENSOR muscles, VASTUS lateralis
Abstract

The force drop after transcranial magnetic stimulation (TMS) delivered to the motor cortex during voluntary muscle contractions could inform about muscle relaxation properties. Because of the physiological relation between skeletal muscle fibertype distribution and size and muscle relaxation, TMS could be a noninvasive index of muscle relaxation in humans. By combining a noninvasive technique to record muscle relaxation in vivo (TMS) with the gold standard technique for muscle tissue sampling (muscle biopsy), we investigated the relation between TMS-induced muscle relaxation in unfatigued and fatigued states, and muscle fiber-type distribution and size. Sixteen participants (7F/9M) volunteered to participate. Maximal knee-extensor voluntary isometric contractions were performed with TMS before and after a 2-min sustained maximal voluntary isometric contraction. Vastus lateralis muscle tissue was obtained separately from the participants’ dominant limb. Fiber type I distribution and relative cross-sectional area of fiber type I correlated with TMS-induced muscle relaxation at baseline (r = 0.67, adjusted P = 0.01; r = 0.74, adjusted P = 0.004, respectively) and normalized TMS-induced muscle relaxation as a percentage of baseline (r = 0.50, adjusted P = 0.049; r = 0.56, adjusted P = 0.031, respectively). The variance in the normalized peak relaxation rate at baseline (59.8%, P < 0.001) and in the fatigue resistance (23.0%, P = 0.035) were explained by the relative cross-sectional area of fiber type I to total fiber area. Fiber type I proportional area influences TMS-induced muscle relaxation, suggesting TMS as an alternative method to noninvasively inform about skeletal muscle relaxation properties. NEW & NOTEWORTHY Transcranial magnetic stimulation (TMS)-induced muscle relaxation reflects intrinsic muscle contractile properties by interrupting the drive from the central nervous system during voluntary muscle contractions. We showed that fiber type I proportional area influences the TMS-induced muscle relaxation, suggesting that TMS could be used for the noninvasive estimation of muscle relaxation in unfatigued and fatigued human muscles when the feasibility of more direct method to study relaxation properties (i.e., muscle biopsy) is restricted. [ABSTRACT FROM AUTHOR]

Published
2024
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10. Sex differences in neuromuscular and biological determinants of isometric maximal force.

Author

Giuriato, Gaia, Romanelli, Maria Grazia, Bartolini, Desirée, Vernillo, Gianluca, Pedrinolla, Anna, Moro, Tatiana, Franchi, Martino, Locatelli, Elena, Andani, Mehran Emadi, Laginestra, Fabio Giuseppe, Barbi, Chiara, Aloisi, Gloria Fiorini, Cavedon, Valentina, Milanese, Chiara, Orlandi, Elisa, De Simone, Tonia, Fochi, Stefania, Patuzzo, Cristina, Malerba, Giovanni, and Fabene, Paolo

Subjects
*PHYSIOLOGY, *GENE expression, *BIOMARKERS, *MUSCLE proteins, *NEUROMUSCULAR transmission, *BLOOD proteins
Abstract

Aim: Force expression is characterized by an interplay of biological and molecular determinants that are expected to differentiate males and females in terms of maximal performance. These include muscle characteristics (muscle size, fiber type, contractility), neuromuscular regulation (central and peripheral factors of force expression), and individual genetic factors (miRNAs and gene/protein expression). This research aims to comprehensively assess these physiological variables and their role as determinants of maximal force difference between sexes. Methods: Experimental evaluations include neuromuscular components of isometric contraction, intrinsic muscle characteristics (proteins and fiber type), and some biomarkers associated with muscle function (circulating miRNAs and gut microbiome) in 12 young and healthy males and 12 females. Results: Male strength superiority appears to stem primarily from muscle size while muscle fiber‐type distribution plays a crucial role in contractile properties. Moderate‐to‐strong pooled correlations between these muscle parameters were established with specific circulating miRNAs, as well as muscle and plasma proteins. Conclusion: Muscle size is crucial in explaining the differences in maximal voluntary isometric force generation between males and females with similar fiber type distribution. Potential physiological mechanisms are seen from associations between maximal force, skeletal muscle contractile properties, and biological markers. [ABSTRACT FROM AUTHOR]

Published
2024
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24. Effects of nociceptive and mechanosensitive afferents sensitization on central and peripheral hemodynamics following exercise-induced muscle damage

Author

Zambolin, Fabio, primary, Giuriato, Gaia, additional, Laginestra, Fabio Giuseppe, additional, Ottaviani, Matteo Maria, additional, Favaretto, Thomas, additional, Calabria, Elisa, additional, Duro-Ocana, Pablo, additional, Bagley, Liam, additional, Faisal, Azmy, additional, Peçanha, Tiago, additional, McPhee, Jamie Stewart, additional, and Venturelli, Massimo, additional

Published
2022
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29. Prior Involvement of Central Motor Drive Does Not Impact Performance and Neuromuscular Fatigue in a Subsequent Endurance Task

Author

LAGINESTRA, FABIO GIUSEPPE, primary, CAVICCHIA, ALESSANDRO, additional, VANEGAS-LOPEZ, JENNIFER E., additional, BARBI, CHIARA, additional, MARTIGNON, CAMILLA, additional, GIURIATO, GAIA, additional, PEDRINOLLA, ANNA, additional, AMANN, MARKUS, additional, HUREAU, THOMAS J., additional, and VENTURELLI, MASSIMO, additional

Published
2022
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31. Sex Differences in Estimates of Cardiac Autonomic Function Using Time Domain based Method of Heart Rate Variability: Effects of Oral Capsaicin

Author

Zaleski, Kendall S., primary, Gyampo, Abena, additional, Lora, Brian, additional, Tomasi, Tawn, additional, Lynch, Meaghan, additional, Giuriato, Gaia, additional, Basso, Emma, additional, Finegan, Emma, additional, Schickler, Jack, additional, Venturelli, Massimo, additional, and Ives, Stephen J., additional

Published
2022
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40. Electrically induced quadriceps fatigue in the contralateral leg impairs ipsilateral knee extensors performance

Author

Laginestra, Fabio Giuseppe, primary, Amann, Markus, additional, Kirmizi, Emine, additional, Giuriato, Gaia, additional, Barbi, Chiara, additional, Ruzzante, Federico, additional, Pedrinolla, Anna, additional, Martignon, Camilla, additional, Tarperi, Cantor, additional, Schena, Federico, additional, and Venturelli, Massimo, additional

Published
2021
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41. The key role of physical activity against the neuromuscular deterioration in patients with Parkinson's disease

Author

Martignon, Camilla, primary, Ruzzante, Federico, additional, Giuriato, Gaia, additional, Laginestra, Fabio G., additional, Pedrinolla, Anna, additional, Di Vico, Ilaria A., additional, Saggin, Paolo, additional, Stefanelli, Donato, additional, Tinazzi, Michele, additional, Schena, Federico, additional, and Venturelli, Massimo, additional

Published
2021
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50. Repeatability of alkaline inorganic phosphate quantification in the skeletal muscle using 31 P-magnetic resonance spectroscopy at 3 T.

Author

Matias AA, Serviente CF, Decker ST, Erol ME, Giuriato G, Le Fur Y, Nagarajan R, Bendahan D, and Layec G

Abstract

The detection of a secondary inorganic phosphate (Pi) resonance, a possible marker of mitochondrial content in vivo, using phosphorus magnetic resonance spectroscopy ( 31 P-MRS), poses technical challenges at 3 Tesla (T). Overcoming these challenges is imperative for the integration of this biomarker into clinical research. To evaluate the repeatability and reliability of measuring resting skeletal muscle alkaline Pi (Pi alk ) using with 31 P-MRS at 3 T. After an initial set of experiments on five subjects to optimize the sequence, resting 31 P-MRS of the quadriceps muscles were acquired on two visits (~4 days apart) using an intra-subjects design, from 13 sedentary to moderately active young male and female adults (22 ± 3 years old) within a whole-body 3 T MR system. Measurement variability attributed to changes in coil position, shimming procedure, and spectral analysis were quantified. 31 P-MRS data were acquired with a 31 P/-proton ( 1 H) dual-tuned surface coil positioned on the quadriceps using a pulse-acquire sequence. Test-retest absolute and relative repeatability was analyzed using the coefficient of variation (CV) and intra-class correlation coefficients (ICC), respectively. After sequence parameter optimization, Pi alk demonstrated high intra-subject repeatability (CV: 10.6 ± 5.4%, ICC: 0.80). Proximo-distal change in coil position along the length of the quadriceps introduced Pi alk quantitation variability (CV: 28 ± 5%), due to magnetic field inhomogeneity with more distal coil locations. In contrast, Pi alk measurement variability due to repeated shims from the same muscle volume (0.40 ± 0.09mM; CV: 6.6%), and automated spectral processing (0.37 ± 0.01mM; CV: 2.3%), was minor. The quantification of Pi alk in skeletal muscle via surface coil 31P-MRS at 3 T demonstrated excellent reproducibility. However, caution is advised against placing the coil at the distal part of the quadriceps to mitigate shimming inhomogeneity., (© 2024 The Author(s). NMR in Biomedicine published by John Wiley & Sons Ltd.)

Published
2024
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