Manifestazioni mioelettriche di affaticamento muscolare indotto da resistenze elastiche o pesi in uomini e donne

Translated title of the contribution: Myoelectric manifestations of muscle fatigue induced by weight or elastic resistances in men and women

G. Melchiorri, T. Triossi, V. Viero, V. Tancredi, A. Rainoldi

Research output: Contribution to journalArticlepeer-review

Abstract

Aim. The purpose of this paper was to analyze gender differences in mechanical and myoelectric manifestations of muscle fatigue induced by different types of resistance (elastic tubes and traditional weights). Reference values were the maximal voluntary contraction (MVC) for the isometric contractions and 1 RM for the dynamic tests. Subjects were requested to perform a 60 s fatiguing isometric contraction at 60% MVC and exhaustion test at 70% MVC. Methods. sEMG signals were recorded, using a linear array of eight electrodes, from biceps brachii on the dominant side in a population of 18 men (27±5 years) and 16 women (25±5) healthy and sedentary. MVC, endurance time, initial value of EMG variables (conduction velocity-CV, mean power frequency-MNF, average rectified value-ARV) were analyzed. The analysis was carried out for all variables before and after the fatiguing contraction, in relation to the different types of resistance and gender. Results. MVC values were found greater in man (310.9±80.7 N; 290.9±80.3 N) than in female (100.8±30.1; 100.6±30.7 N, P

Translated title of the contributionMyoelectric manifestations of muscle fatigue induced by weight or elastic resistances in men and women
Original languageItalian
Pages (from-to)227-240
Number of pages14
JournalMedicina dello Sport
Volume67
Issue number2
Publication statusPublished - 2014

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

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