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Titolo:
Effects of resistance training on neuromuscular junction morphology
Autore:
Deschenes, MR; Judelson, DA; Kraemer, WJ; Meskaitis, VJ; Volek, JS; Nindl, BC; Harman, FS; Deaver, DR;
Indirizzi:
Coll William & Mary, Dept Kinesiol, Williamsburg, VA 23187 USA Coll William & Mary Williamsburg VA USA 23187 Williamsburg, VA 23187 USA Penn State Univ, Ctr Sports Med, University Pk, PA 16802 USA Penn State Univ University Pk PA USA 16802 d, University Pk, PA 16802 USA Ball State Univ, Human Performance Res Lab, Muncie, IN USA Ball State Univ Muncie IN USA Human Performance Res Lab, Muncie, IN USA Penn State Univ, Dept Dairy & Anim Sci, University Pk, PA 16802 USA Penn State Univ University Pk PA USA 16802 i, University Pk, PA 16802 USA
Titolo Testata:
MUSCLE & NERVE
fascicolo: 10, volume: 23, anno: 2000,
pagine: 1576 - 1581
SICI:
0148-639X(200010)23:10<1576:EORTON>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSTSYNAPTIC ELEMENTS; SKELETAL-MUSCLE; RAT; EXERCISE; ENDURANCE; HINDLIMB; MICE; VISUALIZATION; GROWTH; FIBERS;
Keywords:
acetylcholine; exercise; motor endplate; muscle; synapse;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Deschenes, MR Coll William & Mary, Dept Kinesiol, Williamsburg, VA 23187 USA Coll William & Mary Williamsburg VA USA 23187 VA 23187 USA
Citazione:
M.R. Deschenes et al., "Effects of resistance training on neuromuscular junction morphology", MUSCLE NERV, 23(10), 2000, pp. 1576-1581

Abstract

The aim of this study was to determine the impact of resistance exercise on neuromuscular junction (NMJ) architecture. Eighteen Sprague-Dawley rats either participated in a 7-week resistance training program or served as untrained controls. Following the experimental period, the NMJs of soleus muscles were visualized with immunofluorescent techniques, and muscle fibers were stained histochemically. Results indicate that resistance training significantly (P < 0.05) increased endplate perimeter length (15%) and area (16%), and significantly enhanced the dispersion of acetylcholine receptors within the endplate region. Pre- and post-synaptic modifications to resistanceexercise were well-coupled. No significant alterations in muscle fiber size or fiber type were detected. The data presented here indicate that the stimulus of resistance training was sufficiently potent to remodel NMJ structure, and that this effect cannot be attributed to muscle fiber hypertrophy or fiber type conversion. (C) 2000 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 04:51:41