MHC and MU firing rates for the VL 1 Title: The influence of the contractile properties of muscle on motor unit firing rates during a 1 moderate intensity contraction in vivo

نویسندگان

  • Michael A. Trevino
  • Trent J. Herda
  • Andrew C. Fry
  • Philip M. Gallagher
  • Eric M. Mosier
  • Jonathan D. Miller
  • Phillip M. Gallagher
  • John P. Vardiman
چکیده

3 Authors: Michael A. Trevino, Trent J. Herda, Andrew C. Fry, Philip M. Gallagher, John P. 4 Vardiman, Eric M. Mosier, and Jonathan D. Miller 5 6 1 Neuromechanics Laboratory, University of Kansas, Lawrence, Kansas, 2 Applied Physiology 7 Laboratory, University of Kansas, Lawrence, Kansas, 3 Applied Physiology and Sports Medicine 8 Laboratory, Kansas State University, Manhattan, Kansas 9 10 Email: Michael A. Trevino: [email protected], Trent J. Herda: [email protected], 11 Andrew C. Fry: [email protected], Phillip M. Gallagher: [email protected], John P. Vardiman: 12 [email protected], Eric M. Mosier: [email protected], Jonathan D. Miller: [email protected] 13 14 Corresponding Author: Trent J. Herda, Ph.D. 15 Assistant Professor – Director, Neuromechanics Laboratory 16 Dept. of Health, Sport, and Exercise Sciences 17 University of Kansas 18 1301 Sunnyside Ave, Room 101BE 19 Lawrence, KS 66045 20 Office Phone: (785) 864-2224 21 Fax: (785) 864-3343 22 Email: [email protected] 23 24 Articles in PresS. J Neurophysiol (May 4, 2016). doi:10.1152/jn.01021.2015

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Motor unit firing rates and contractile properties in tibialis anterior of young and old men.

The effects of aging on motoneuron firing rates and muscle contractile properties were studied in tibialis anterior muscle by comparing results from six young (20.8 +/- 0.8 yr) and six old men (82.0 +/- 1.7 yr). For each subject, data were collected from repeated tests over a 2-wk period. Contractile tests included maximal voluntary contraction (MVC) with twitch interpolation and stimulated twi...

متن کامل

The Effect of Experimental Muscle Pain on Motor Unit Firing Rate and Conduction Velocity

The aim of this human study was to investigate the relation between the experimentally induced muscle pain intensity (i.e., amount of nociceptive activity) and 1) motor unit (MU) firing decrease and 2) MU conduction velocity (CV). In 12 healthy subjects, nociceptive afferents were stimulated in the right tibialis anterior muscle by three intramuscular injections of hypertonic saline (0.2 ml, 0....

متن کامل

Effect of experimental muscle pain on motor unit firing rate and conduction velocity.

The aim of this human study was to investigate the relationship between experimentally induced muscle pain intensity (i.e., amount of nociceptive activity) and motor unit (MU) firing decrease and MU conduction velocity (CV). In 12 healthy subjects, nociceptive afferents were stimulated in the right tibialis anterior muscle by three intramuscular injections of hypertonic saline (0.2, 0.5, and 0....

متن کامل

Low-threshold motor unit membrane properties vary with contraction intensity during sustained activation with surface EMG visual feedback.

Single-motor unit (MU) activities were detected from the abductor pollicis and abductor digiti minimi muscles providing the subjects with visual feedback of multichannel surface electromyogram (EMG) signals. The subjects could modulate the force to observe on the surface recordings a single dominant MU and modulate its firing rate for contractions of 300 s with a noninvasive EMG feedback. The f...

متن کامل

Muscle phenotype is related to motor unit behavior of the vastus lateralis during maximal isometric contractions

Previous investigations have reported a relationship between skeletal muscle phenotype and motor unit (MU) firing parameters during submaximal contractions. The purpose of the current investigation, however, was to examine the relationships between motor unit firing behavior during a maximal voluntary contraction, Myosin Heavy Chain (MHC) isoform content, and various molecular neuromuscular tar...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2016