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Titolo:
The role of passive muscle stiffness in symptoms of exercise-induced muscle damage
Autore:
McHugh, MP; Connolly, DAJ; Eston, RG; Kremenic, IJ; Nicholas, SJ; Gleim, GW;
Indirizzi:
Lenox Hill Hosp, NISMAT, New York, NY 10021 USA Lenox Hill Hosp New York NY USA 10021 osp, NISMAT, New York, NY 10021 USA Univ Wales, Sch Sport Hlth & Phy Educ Sci, Bangor, Gwynedd, Wales Univ Wales Bangor Gwynedd Wales h & Phy Educ Sci, Bangor, Gwynedd, Wales Univ Vermont, Dept Phys Educ, Burlington, VT USA Univ Vermont Burlington VT USA rmont, Dept Phys Educ, Burlington, VT USA
Titolo Testata:
AMERICAN JOURNAL OF SPORTS MEDICINE
fascicolo: 5, volume: 27, anno: 1999,
pagine: 594 - 599
SICI:
0363-5465(199909/10)27:5<594:TROPMS>2.0.ZU;2-N
Fonte:
ISI
Lingua:
ENG
Soggetto:
HUMAN HAMSTRING MUSCLE; HUMAN SKELETAL-MUSCLE; FORCE CHARACTERISTICS; GASTROCNEMIUS-MUSCLE; CONCENTRIC EXERCISE; ELASTIC PROPERTIES; HEALTHY-MEN; LENGTH; CONTRACTIONS; STRETCH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: McHugh, MP Lenox Hill Hosp, NISMAT, 130 E 77th St, New York, NY 10021 USA Lenox Hill Hosp 130 E 77th St New York NY USA 10021 Y 10021 USA
Citazione:
M.P. McHugh et al., "The role of passive muscle stiffness in symptoms of exercise-induced muscle damage", AM J SP MED, 27(5), 1999, pp. 594-599

Abstract

We examined whether passive stiffness of an eccentrically exercising muscle group affects the subsequent symptoms of muscle damage. Passive hamstringmuscle stiffness was measured during an instrumented straight-leg-raise stretch in 20 subjects (11 men and 9 women) who were subsequently classified as "stiff" (N = 7), "normal" (N = 6), or "compliant" (N = 7). Passive stiffness was 78% higher in the stiff subjects (36.2 +/- 3.3 N.m.rad(-1)) compared with the compliant subjects (20.3 +/- 1.8 N.m.rad(-1)). Subjects then performed six sets of 10 isokinetic (2.6 rad.s(-1)) submaximal (60% maximal voluntary contraction) eccentric actions of the hamstring muscle group. Symptoms of muscle damage were documented by changes in isometric hamstring muscle strength, pain, muscle tenderness, and creatine kinase activity on the following 3 days. Strength loss, pain, muscle tenderness, and creatine kinase activity were significantly greater in the stiff compared with the compliant subjects on the days after eccentric exercise. Greater symptoms of muscle damage in subjects with stiffer hamstring muscles are consistent with the sarcomere strain theory of muscle damage. The present study provides experimental evidence of an association between flexibility and muscle injury. Muscle stiffness and its clinical correlate, static flexibility, are risk factors for more severe symptoms of muscle damage after eccentric exercise.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 10/04/20 alle ore 02:27:31