RSS-Feed abonnieren
DOI: 10.1055/s-2000-7425
Fatigue of Elbow Flexors During Repeated Flexion-Extension Cycles: Effect of Movement Strategy
Publikationsverlauf
Publikationsdatum:
31. Dezember 2000 (online)
![](https://www.thieme-connect.de/media/sportsmed/200007/lookinside/thumbnails/10.1055-s-2000-7425-1.jpg)
The objective of this work was to study the influence of movement strategy on fatigue of elbow flexors during repeated flexion-extension cycles in order to enlighten the fatigue process occurring during “pumping” in boardsailing. This dynamic exercise was performed by six high-level Olympic boardsailors according to two movement strategies with different amplitude and frequency. The parameters of the exercise were chosen to result in similar mechanical work at every instant for both modalities. Isometric evaluation was performed before and after dynamic exercise to quantify muscle fatigue. Analysis of physical parameters (maximum voluntary contraction, endurance time) and electromyographic parameters (in both temporal and frequency domains) emphasized the peripheral origin of muscle fatigue at the level of the biceps brachii and the brachioradialis.
After considering the limitations of this type of study, the results are discussed in terms of synergy and differentiation between muscles, peripheral fatigue and movement strategy. Although the mechanical work and total physiological demands were similar for the two movement modalities, analysis of electromyographic parameters suggests that muscle fatigue mainly involves the biceps brachii when movements were slow and wide, and the brachioradialis when they were rapid and short. This study makes it possible to take these specificities into account in order to adjust the physical training program.
Key words:
Dynamic exercise, isometric evaluation, surface EMG, biceps brachii, brachioradialis.
References
- 1 Bigland-Ritchie B, Johansson R, Lippold O CJ, Smith S, Woods J J. Change in motoneurone firing rates during sustained maximal voluntary contractions. J Physiol. 1983; 340 335-346
- 2 Broman H, Bilotto G, De Luca C J. Myoelectric signal conduction velocity and spectral parameters: influence of force and time. J Appl Physiol. 1985; 58 1428-1437
- 3 Buchanan T S, Almdale D P, Lewis J L, Rymer W Z. Characteristics of synergic relations during isometric contractions of human elbow muscles. J Neurophysiol. 1986; 56 1225-1241
- 4 Buchanan T S, Rovai G P, Rymer W Z. Strategies for muscle activation during isometric torque generation at the human elbow. J Neurophysiol. 1989; 62 1201-1212
- 5 Caldwell G E, van Leemputte M. Elbow torques and EMG patterns of flexor muscles during different isometric tasks. Electromyogr Clin Neurophysiol. 1991; 31 433-445
- 6 Caldwell G E, Jamison J C, Lee S. Amplitude and frequency measures of surface electromyography during dual task elbow torque production. Eur J Appl Physiol. 1993; 66 349-356
- 7 Daanen H AR, Mazure M, Holewijn M, Van der Velde A. Reproducibility of the mean power frequency of the surface electromyogram. Eur J Appl Physiol. 1990; 61 274-277
- 8 De Luca C J. Myoelectrical manifestations of localised muscular fatigue in humans. Crit Rev Biomed Eng. 1984; 11 245-279
- 9 Duchêne J, Goubel F. EMG spectral shift as an indicator of fatigability in an heterogeneous muscle group. Eur J Appl Physiol. 1990; 61 81-87
- 10 Duchêne J, Goubel F. Surface electromyogram during voluntary contraction: processing tools and relation to physiological events. Crit Rev Biomed Eng. 1993; 21 313-397
- 11 Dyson R J, Buchanan M, Farrington T A, Hurrion P D. Electromyographic activity during windsurfing on water. J Sports Sci. 1996; 14 125-130
- 12 Esposito F, Orizio C, Veicsteinas A. Electromyogram and mechanomyogram changes in fresh and fatigued muscle during sustained contraction in men. Eur J Appl Physiol. 1998; 78 494-501
- 13 Gamet D, Maton B. The fatigability of two agonistic muscles in human isometric voluntary submaximal contraction: an EMG study. I. Assessment of muscular fatigue by means of surface EMG. Eur J Appl Physiol. 1993; 58 361-368
- 14 Gerdle B, Eriksson N-E, Brundin L. The behavior of the mean power frequency of the surface electromyogram in biceps brachii with increasing force and during fatigue. With special regard to the electrode distance. Electromyogr Clin Neurophysiol. 1990; 30 483-489
- 15 Gerdle B, Henriksson-Larsén K, Lorentzon R, Wretling M L. Dependence of the mean power frequency of the electromyogram on muscle force and fibre type. Acta Physiol Scand. 1991; 142 457-465
- 16 Grabiner M D, Robertson R N, Campbell K R. Effects of fatigue profiles and relative torque contribution of elbow flexor synergists. Med Sci Sports Med. 1988; 20 79-84
- 17 Hägg G M. Interpretation of EMG spectral alterations and alteration indexes at sustained contraction. J Appl Physiol. 1992; 73 1211-1217
- 18 Hogrel J Y, Duchêne J, Marini J F. Variability of some SEMG parameter estimates with electrode location. J Electromyogr Kinesiol. 1998; 8 305-315
- 19 Jamison J C, Caldwell G E. Muscle synergies and isometric torque production: influence of supination and pronation level on elbow flexion. J Neurophysiol. 1993; 70 947-960
- 20 Johnson M A, Polgar J, Weightman D, Appleton D. Data on the distribution of fibre types in thirty-six human muscles. An autopsy study. J Neurol Sci. 1973; 18 111-129
- 21 Komi P V, Tesch P. EMG frequency spectrum, muscle structure and fatigue during dynamic contraction in man. Eur J Appl Physiol. 1979; 42 41-50
- 22 Krogh-Lund C. Myo-electric fatigue and force failure from submaximal static elbow flexion sustained to exhaustion. Eur J Appl Physiol. 1993; 67 389-401
- 23 Maton B. Human motor unit activity during the onset of muscle fatigue in submaximal isometric isotonic contraction. J Appl Physiol. 1981; 46 271-281
- 24 Matthijsse P C, Hendrich K MM, Rijnsburger W H, Woittiez R D, Huijing P A. Ankle effects on endurance time, median frequency and mean power of gastrocnemius EMG power spectrum: a comparison between individual and group analysis. Ergonomics. 1987; 30 1149-1159
- 25 Merletti R, Roy S. Myoelectric and mechanical manifestations of muscle fatigue in voluntary contractions. J Orth Sports Phys Ther. 1996; 24 42-53
- 26 Miller R G, Giannini D, Milner-Brown H S, Layzer R B, Koretsky A P, Hooper D, Weiner M W. Effects of fatiguing exercise on high-energy phosphates, force, and EMG: evidence for three phases of recovery. Muscle Nerve. 1987; 10 810-821
-
27 Moritani T, Gaffney F D, Carmichael T, Hargis J.
Interrelationships among muscle fibre types, electromyogram, and blood pressure during fatiguing isometric contraction. In: Winter DA, Norman RW, Wells RP, Hayes KC, Patla AE (eds) Biomechanics IX-A. Champaign, IL; Human Kinetics 1985: 287-292 - 28 Murray W M, Delp S L, Buchanan T S. Variation of muscle moment arms with elbow and forearm position. J Biomech. 1995; 28 513-525
- 29 Nagata S, Arsenault A B, Gagnon G, Smyth G, Mathieu P A. EMG power spectrum as a measure of muscular fatigue at different levels of contraction. Med Biol Eng Comput. 1990; 28 374-378
- 30 Pigeon P, Yahia L, Feldman A G. Moment arms and lengths of human upper limb muscles as functions of joint angles. J Biomech. 1996; 29 1365-1370
- 31 Tesch P A, Komi P V, Jacobs I, Karlsson J, Viitasalo J T. Influence of lactate accumulation on EMG frequency spectrum during repeated concentric contractions. Acta Physiol Scand. 1983; 9 61-67
- 32 Vollestad N K, Sejersted O M. Biochemical correlates to fatigue. Eur J Appl Physiol. 1988; 57 336-347
- 33 Winters J M, Kleweno D G. Effect of initial upper-limb alignment on muscle contributions to isometric strength curves. J Biomech. 1993; 26 143-153
- 34 Zipp P. Recommendations for the standardization of lead positions in surface electromyography. Eur J Appl Physiol. 1982; 50 41-54
Jean-Yves Hogrel,Ph.D.
Institut de Myologie GH Pitié-Salpêtrière
47 Bd de l'Hôpital 75651 Paris Cedex 13 France
Telefon: Phone:+ 33 (1) 42165880
Fax: Fax:+ 33 (1) 42165881
eMail: E-mail:jy.hogrel@myologie.chups.jussieu.fr