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[Effects of an eccentric exercise session short-term recovery of muscle contractility].
J Soc Biol. 2000; 194(3-4):171-6.JS

Abstract

Short term effects of 5 sets of 10 maximal eccentric contractions of the elbow flexors, performed using an isokinetic ergometer, were studied. Maximal eccentric, isometric, concentric torque, myoelectrical activity of biceps and triceps brachii, voluntary activation, M-wave amplitude, as well as twitch and maximal contraction and relaxation velocities were measured before (Control), 2 minutes after (Post), 24 hours (Post24 h) and 48 hours (Post48 h) after the exercise session. Torque significantly decreased over the recovery period, whatever the contraction type, excepted concentric torque assessed at 240 degrees.s-1 which recovered its Control value at Post48 h. Activation level significantly decreased at Post (p < 0.05) and returned to its Control value at Post24 h. Twitch, as well as maximal contraction and relaxation velocities had significantly declined among the experimental procedure (p < 0.01). M-wave amplitude was not modified after the exercise. These results indicate that, over a 48 hour rest period, torque decrement following a maximal eccentric exercise session should mainly be due to a failure of the peripheral part of the neuromuscular system, and force recovery should closely be linked to the developed force value.

Authors+Show Affiliations

Groupe Analyse du Mouvement (GAM), UFR STAPS, Campus universitaire, Université de Bourgogne, BP 27877, 21078 Dijon.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

English Abstract
Journal Article

Language

fre

PubMed ID

11324320

Citation

Michaut, A, et al. "[Effects of an Eccentric Exercise Session Short-term Recovery of Muscle Contractility]." Journal De La Societe De Biologie, vol. 194, no. 3-4, 2000, pp. 171-6.
Michaut A, Pousson M, Ballay Y, et al. [Effects of an eccentric exercise session short-term recovery of muscle contractility]. J Soc Biol. 2000;194(3-4):171-6.
Michaut, A., Pousson, M., Ballay, Y., & Van Hoecke, J. (2000). [Effects of an eccentric exercise session short-term recovery of muscle contractility]. Journal De La Societe De Biologie, 194(3-4), 171-6.
Michaut A, et al. [Effects of an Eccentric Exercise Session Short-term Recovery of Muscle Contractility]. J Soc Biol. 2000;194(3-4):171-6. PubMed PMID: 11324320.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Effects of an eccentric exercise session short-term recovery of muscle contractility]. AU - Michaut,A, AU - Pousson,M, AU - Ballay,Y, AU - Van Hoecke,J, PY - 2001/4/28/pubmed PY - 2001/5/25/medline PY - 2001/4/28/entrez SP - 171 EP - 6 JF - Journal de la Societe de biologie JO - J. Soc. Biol. VL - 194 IS - 3-4 N2 - Short term effects of 5 sets of 10 maximal eccentric contractions of the elbow flexors, performed using an isokinetic ergometer, were studied. Maximal eccentric, isometric, concentric torque, myoelectrical activity of biceps and triceps brachii, voluntary activation, M-wave amplitude, as well as twitch and maximal contraction and relaxation velocities were measured before (Control), 2 minutes after (Post), 24 hours (Post24 h) and 48 hours (Post48 h) after the exercise session. Torque significantly decreased over the recovery period, whatever the contraction type, excepted concentric torque assessed at 240 degrees.s-1 which recovered its Control value at Post48 h. Activation level significantly decreased at Post (p < 0.05) and returned to its Control value at Post24 h. Twitch, as well as maximal contraction and relaxation velocities had significantly declined among the experimental procedure (p < 0.01). M-wave amplitude was not modified after the exercise. These results indicate that, over a 48 hour rest period, torque decrement following a maximal eccentric exercise session should mainly be due to a failure of the peripheral part of the neuromuscular system, and force recovery should closely be linked to the developed force value. SN - 1295-0661 UR - https://www.unboundmedicine.com/medline/citation/11324320/[Effects_of_an_eccentric_exercise_session_short_term_recovery_of_muscle_contractility]_ L2 - https://medlineplus.gov/exerciseandphysicalfitness.html DB - PRIME DP - Unbound Medicine ER -