Abstract
The purpose of the present study was to evaluate if rest intervals of 10 or 15 min allow the back muscles to recover completely, from an electromyographic (EMG) point of view, after performing a fatiguing contraction. Twelve healthy males stood in a dynamometer with the trunk in a vertical position and performed three trunk extension fatiguing trials (30 s contractions sustained at 75% of the maximal voluntary contraction) separated successively by a 15 min (between trial 1 and 2) and a 10 min (between trial 2 and 3) rest period. The EMG signals from four pairs of back muscles were collected at 2,048 Hz with active surface electrodes. Different EMG indices computed from the temporal and frequency domains of the EMG signal were considered to evaluate muscular fatigue and recovery from trial 1 to trial 2 and from trial 2 to trial 3. No significant differences (one-way ANOVAs between the three trials, α=0.05) were obtained for the different EMG indices computed. The percentage of variance explained by the inter-trial effect was none in most cases, corroborating that no systematic error was present between the trials and suggesting that complete muscle recovery was allowed with 10 or 15 min rest periods. These results support the use of rest periods of 10 to 15 min between multiple fatigue tests, at least for back muscles and for high intensity short duration fatigue tasks as the one used in the present study.
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References
Adams MA, Mannion AF, Dolan P (1999) Personal risk factors for first-time low back pain. Spine 24:2497–2505
Biering-Sorensen F (1984) Physical measurements as risk indicators for low-back trouble over a one-year period. Spine 9:106–119
Bonde-Petersen F, Mork AL, Nielsen E (1975) Local muscle blood flow and sustained contractions of human arm and back muscles. Eur J Appl Physiol 34:43–50
Brennan RL (1992) Elements of generalizability theory. ACT , Iowa City, Iowa .
Crocker L, Algina J (1986) Introduction to classical and modern test theory. Harcourt Brace Jovanovich College, Forth Worth, Tex.
Dieen JH van, Heijblom P (1996) Reproducibility of isometric trunk extension torque, trunk extensor endurance, and related electromyographic parameters in the context of their clinical applicability. J Orthop Res 14:139–143
Dieen JH van, Heijblom P, Bunkens H (1998) Extrapolation of time series of EMG power spectrum parameters in isometric endurance tests of trunk extensor muscles. J Electromyogr Kinesiol 8:35–44
Duchêne J, Goubel F. (1993) Surface electromyogram during voluntary contraction: processing tools and relation to physiological events. Crit Rev Biomed Eng 21:313–397
Edwards RHT, Hill DK, Jones DA, Merton PA (1977) Fatigue of long duration in human skeletal muscle after exercise. J Physiol (Lond) 272:769–778
Enoka RM, Stuart DG (1992) Neurobiology of muscle fatigue. J Appl Physiol 72:1631–1648
Fitts RH, Balog EM (1996) Effect of intracellullar and extracellular ion changes on E-C coupling and skeletal muscle fatigue. Acta Physiol Scand 156:169–181
Funderburk CF, Hipskind SG, Welton RC, Lind AR (1974) Developement of and recovery from fatigue induced by static effort at various tensions. J Appl Physiol 37:392–396
Garrow JS, Webster J (1985) Quetelet's index (W/H2) as a measure of fatness. Int J Obes Relat Metab Disord 9:147–153
Gerdle B, Fugl-Meyer AR (1992) Is the mean power frequency shift of the EMG a selective indicator of fatigue of the fast twitch motor units? Acta Physiol Scand 145:129–138
Gerdle B, Edstrom M, Rahm M (1993) Fatigue in the shoulder muscles during static work at two different torque levels. Clin Physiol 13:469–482
Jorgensen K (1970) Back muscle strength and body weight as limiting factors for work in the standing slightly-stooped position. Scand J Rehabil Med 2:149–153
Jorgensen K (1997) Human trunk extensor muscles. Physiology and ergonomics. Acta Physiol Scand Suppl 637:1–58
Jorgensen K, Nicholaisen T, Kato M (1993) Muscle fiber distribution, capillary density, and enzymatic activities in the lumbar paravertebral muscles of young men:significance for isometric endurance. Spine 18:1439–1450
Kondraske GV, Deivanayagam S, Carmichael T, Mayer TG, Mooney V (1987) Myoelectric spectral analysis and strategies for quantifying trunk muscular fatigue. Arch Phys Med Rehabil 68:103–110
Krivickas LS, Nadler SF, Davies MR, Petroski GF, Feinberg JH (1996) Spectral analysis during fatigue. Surface and fine wire electrode comparison. Am J Phys Med Rehabil 75:15–20
Kroon GW, Naeije M (1988) Recovery following exhaustive dynamic exercise in the human biceps muscle. Eur J Appl Physiol Occup Physiol 58:228–232
Kroon GW, Naeije M (1991) Recovery of the human biceps electromyogram after heavy eccentric, concentric or isometric exercise. Eur J Appl Physiol Occup Physiol 63:444–448
Kuorinka I (1988) Restitution of EMG spectrum after muscular fatigue. Eur J Appl Physiol 57:311–315
Lariviere C, Gagnon D, Gravel D, Arsenault AB, Dumas J-P, Goyette M,Loisel P (2001a) A triaxial dynamometer to monitor lateral bending and axial rotation moments during static extension efforts. Clin Biomech 16:80–83
Lariviere C, Arsenault AB, Gravel D, Gagnon D, Loisel P (2001b) Median frequency of the electromyographic signal: effect of time-window location on brief step contractions. J Electromyogr Kinesiol 11:65–71
Larivière C, Arsenault AB, Gravel D, Gagnon D, Loisel P (2002) Evaluation of measurement strategies to increase the reliability of EMG indices to assess back muscle fatigue and recovery. J Electromyogr Kinesiol 12:135–146
Luoto S, Heliovaara M, Hurri H, Alaranta H (1995) Static back endurance and the risk of low-back pain. Clin Biomech 10:323–324
Mannion AF, Connolly B, Wood K, Dolan P (1997) The use of surface EMG power spectral analysis in the evaluation of back muscle function. J Rehabil Res Dev 34:427–439
Miller RG, Giannini D, Milner-Brown HS, Layzer RB, Koretsky AP, Hooper D et al (1987) Effects of fatiguing exercise on high-energy phosphates, force, and EMG: evidence for three phases of recovery. Muscle Nerve 10:810–821
Peach JP, Gunning J, McGill SM (1998) Reliability of spectral EMG parameters of healthy back extensors during submaximum isometric fatiguing contractions and recovery. J Electromyogr Kinesiol 8:403–410
Petrofsky JS (1981) Quantification through the surface EMG of muscle fatigue and recovery during successive isometric contractions. Aviat Space Environ Med 52:545–550
Petrofsky JS, Phillips CA (1981) The influence of body fat on isometric exercise performance. Ergonomics 24:215–222
Rohmert W (1973). Problems in determining rest allowances. Part 1: use of modern methods to evaluate stress and strain in static muscular work. Appl Ergon 4:91–95
Roy SH, De Luca CJ, Casavant DA (1989) Lumbar muscle fatigue and chronic lower back pain. Spine 14:992–1001
Roy SH, De Luca CJ, Snyder-Mackler L, Emley MS, Crenshaw RL, and Lyons JP (1990) Fatigue, recovery, and low back pain in varsity rowers. Med Sci Sports Exerc 22:463–469
Roy SH, De Luca CJ, Emley M et al (1997) Classification of back muscle impairment based on the surface electromyographic signal. J Rehabil Res Dev 34:405–414
Shavelson RJ, Webb NM (1991) Generalizability theory. Sage, Newbury Park, p 136
Shrout PE, Fleiss JL (1979) Intraclass correlations: uses in assessing rater reliability. Psychol Bull 86: 420–428
Acknowledgement
Christian Larivière was supported by a post-doctoral fellowship from the Occupational Health and Safety Research Institute Robert-Sauvé of Québec. The experiments performed in this study comply with the current laws of Canada.
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Larivière, C., Gravel, D., Arsenault, A.B. et al. Muscle recovery from a short fatigue test and consequence on the reliability of EMG indices of fatigue. Eur J Appl Physiol 89, 171–176 (2003). https://doi.org/10.1007/s00421-002-0769-z
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DOI: https://doi.org/10.1007/s00421-002-0769-z