Effects of resistance training in humans on neck muscle performance, and electromyogram power spectrum changes

被引：0

作者：

Pierre Portero

André-Xavier Bigard

Didier Gamet

Jean-René Flageat

Charles-Yannick Guézennec

机构：

[1] Institut de Myologie,

[2] Groupe Hospitalier Pitié-Salpêtrière,undefined

[3] 83,undefined

[4] Bd de I'Hôpital,undefined

[5] 75651,undefined

[6] Paris Cedex 13,undefined

[7] France,undefined

[8] Département de Neurophysiologie Appliquée,undefined

[9] Institut de Médecine Aérospatiale du Service de Santé des Armées,undefined

[10] 91223 Brétigny sur Orge Cedex,undefined

[11] France,undefined

[12] Unité de Bioénergétique et Environnement,undefined

[13] Centre de Recherches du Service de Santé des Armées,undefined

[14] 38702 La Tronche Cedex,undefined

[15] France,undefined

[16] Département de Génie Biologique,undefined

[17] Unité Mixte de Recherche,undefined

[18] Centre National de la Recherche Scientifique 6600,undefined

[19] Université de Technologie de Compiègne,undefined

[20] 60206 Compiègne,undefined

[21] France,undefined

[22] Service d'Imagerie Médicale,undefined

[23] Hôpital Begin,undefined

[24] Paris,undefined

[25] France,undefined

来源：

European Journal of Applied Physiology | 2001年 / 84卷

关键词：

Neck muscles Strength training Hypertrophy Electromyogram spectrum analysis Fatigue;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The purpose of this study was to quantify the neuromuscular cervical adaptations to an 8 week strength training programme. Seven healthy men, with no pathological conditions of the neck, performed a lateral flexion isometric resistance-training programme three times a week. The training sessions consisted of one set of ten contractions, each of 6 s duration, at 60% of the predetermined maximal voluntary isometric torque (MVTim) (warm-up) and two sets of eight contractions, each of 6 s duration, at 80% MVTim. The training effects were evaluated in three ways: muscle size, strength and fatigability. The cross-sectional areas (CSA) of the trapezius (TRP) and sternocleidomastoideus (SCM) muscles were determined using a computerised tomographic scanner. Results showed an increase in the CSA of TRP and SCM muscles after training, 8.8% at C5 level and 6.4% at C7 level for SCM muscle and 12.2% at C7 level for TRP muscle. Strength increased significantly under both isometric and isokinetic conditions (35% and 20%, respectively). Muscle fatigability in lateral flexion was quantified during a sustained isometric contraction at 50% of MVTim. The shift of the mean power frequency of the electromyogram power spectrum density function of SCM muscle toward lower frequencies was less after training (14.6% compared to 6.8%). These results indicate the beneficial effect of a strength-training programme which increases neck muscle size and strength during lateral flexion, and decreases the fatigability of the superficial muscles of the neck.

引用

页码：540 / 546

页数：6