Skip to main content
Log in

Relationships between muscle lactate accumulation and surface EMG activities during isokinetic contractions in man

  • Published:
European Journal of Applied Physiology and Occupational Physiology Aims and scope Submit manuscript

Summary

In order to investigate the relationship between metabolic state and myoelectrical activity in working muscle during short term intense exercise, eleven healthy males performed isokinetic knee extensions at an angular velocity of 180 deg · sec−1 for 30 and 60 s. The median frequency (MF) of the surface electromyogram (EMG) recorded from vastus lateralis was decreased while the time lag of torque production after the onset of electrical activity (EMD) was increased during exercise. These changes (MF and EMD) corresponded well to muscle lactate accumulation in the same muscle. Over the exercise period, the integrated EMG/knee extension peak torque ratio (E/T ratio) was increased, which indicated a decrease in the efficiency of electrical activity. It was concluded that the changes in the frequency components of the EMG and in the contractile property of the muscle during short term intense exercise correlated with lactate accumulation in the identical muscle, and that the decrease in efficiency of the electrical activity in the muscle suggested peripheral fatigue.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Subscribe and save

Springer+ Basic
EUR 32.99 /Month
  • Get 10 units per month
  • Download Article/Chapter or Ebook
  • 1 Unit = 1 Article or 1 Chapter
  • Cancel anytime
Subscribe now

Buy Now

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Bergström J (1962) Muscle electrolytes in man. Scand J Clin Lab Invest [Suppl 68]

  • Bigland-Ritchie B, Jones DA, Hosking GP, Edwards RHT (1978) Central and peripheral fatigue in sustained maximum voluntary contractions of human quadriceps muscle. Clin Sci Mol Med 54:609–614

    Google Scholar 

  • Broman H (1977) An investigation on the influence of a sustained contraction on the succession of action potentials from a single motor unit. Electromyogr Clin Neurophysiol 17:341–358

    Google Scholar 

  • Costill DL, Fink WJ, Van Handel PJ, Miller JM, Scherman WM, Watson PA, Witzman FA (1979) Analytical methods for the measurement of human performance. Human Perform Lab Ball State University, Muncie, Indiana

    Google Scholar 

  • Edwards RHT (1981) Human muscle function and fatigue. In: Porter R, Whelan J (eds) Human muscle fatigue:physiological mechanisms. Pitman Medical, London, pp 1–18

    Google Scholar 

  • Fuchs F, Reddy Y, Briggs FN (1970) The interaction of cations with the calcium-binding site of troponin. Biochim Biophys Acta 221:407–409

    Google Scholar 

  • Grimby L, Hannerz J, Hedman B (1981) The fatigue and voluntary discharge properties of single motor units in man. J Physiol 316:545–554

    Google Scholar 

  • Gydikov A, Kosarov D (1974) Some features of different motor units in human biceps brachii. Pflügers Arch 347:75–88

    Google Scholar 

  • Hagberg M (1981) Muscular endurance and surface electromyogram in isometric and dynamic exercise. J Appl Physiol 51:1–7

    Google Scholar 

  • Häkkinen K, Komi PV (1983) Electromyographic and mechanical characteristics of human skeletal muscle during fatigue under voluntary and reflex conditions. Electroenceph Clin Neurophysiol 55:436–444

    Google Scholar 

  • Komi PV, Cavanagh PR (1977) Electromechanical delay in human skeletal muscles. Med Sci Sports 9:49

    Google Scholar 

  • Komi PV, Tesch P (1979) EMG frequency spectrum, muscle structure, and fatigue during dynamic contractions in man. Eur J Appl Physiol 42:41–50

    Google Scholar 

  • Lindström L, Magnusson R, Petersén I (1970) Muscular fatigue and action potential conduction velocity changes studied with frequency analysis of emg signals. Electromyography 4:341–356

    Google Scholar 

  • Mills KR (1982) Power spectral analysis of electromyogram and compound muscle action potential during muscle fatigue and recovery. J Physiol 326:401–409

    Google Scholar 

  • Mortimer JT, Magnusson R, Petersén I (1970) Conduction velocity in ischemic muscle: effect on EMG frequency spectrum. Am J Physiol 219:1324–1329

    Google Scholar 

  • Nakamaru Y, Schwartz A (1972) The influence of hydrogen ion concentration on calcium binding and release by skeletal muscle sarcoplasmic reticulum. J Gen Physiol 59:22–32

    Google Scholar 

  • Nilsson J, Tesch P, Thorstensson A (1977) Fatigue and EMG of repeated fast voluntary contractions in man. Acta Physiol Scand 101:194–198

    Google Scholar 

  • Petrofsky JS (1979) Frequency and amplitude analysis of the EMG during exercise on the bicycle ergometer. Eur J Appl Physiol 41:l-15

    Google Scholar 

  • Petrofsky JS, Lind AR (1980) Frequency analysis of the surface electromyogram during sustained isometric contractions. Eur J Appl Physiol 43:173–182

    Google Scholar 

  • Sadoyama T, Masuda T, Miyano H (1983) Relationship between muscle fibre conduction velocity and frequency parameters of surface EMG during sustained contraction. Eur J Appl Physiol 51:247–256

    Google Scholar 

  • Sato H, Ishii M (1977) Evaluation of local muscular fatigue in dynamic muscular work. Jpn J Ergonom 13:255–260

    Google Scholar 

  • Stulen FB, De Luca CJ (1981) Frequency parameters of the myoelectric signal as a measure of muscle conduction velocity. IEEE Trans Biomed Eng BME-28:515–523

    Google Scholar 

  • Tesch PA, Komi PV, Jacobs I, Karlsson J, Viitasalo JT (1983) Influence of lactate accumulation on EMG frequency spectrum during repeated concentric contractions. Acta Physiol Scand 119:61–67

    Google Scholar 

  • Tesch P, Sjödin B, Karlsson J (1978a) Relationship between lactate accumulation, LDH activity, LDH isozyme and fibre type distribution in human skeletal muscle. Acta Physiol Scand 103:40–46

    Google Scholar 

  • Tesch P, Sjödin B, Thorstensson A, Karlsson J (1978b) Muscle fatigue and its relation to lactate accumulation and LDH activity in man. Acta Physiol Scand 103:413–420

    Google Scholar 

  • Thorstensson A, Karlsson J (1976) Fatiguability and fibre composition of human skeletal muscle. Acta Physiol Scand 98:318–322

    Google Scholar 

  • Viitasalo JT (1983) Function of the knee extensor muscles during fatigue. In: Matsui H, Kobayashi K (eds) Biomechanics VIII-A. Human Kinetics, Illinois, pp 271–277

    Google Scholar 

  • Viitasalo JT, Komi PV (1978) Isometric endurance, EMG power spectrum, and fibre composition in human quadriceps muscle. In: Asmussen E, Jørgensen K (eds) Biomechanics VI-A. University Park Press, Baltimore, pp 244–250

    Google Scholar 

  • Viitasalo JT, Komi PV, Jacobs I, Karlsson J (1982) Effects of prolonged cross-country skiing on neuromuscular performance. In: Komi PV (ed) Exercise and sports biology. Human Kinetics, Illinois, pp 191–198

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Horita, T., Ishiko, T. Relationships between muscle lactate accumulation and surface EMG activities during isokinetic contractions in man. Europ. J. Appl. Physiol. 56, 18–23 (1987). https://doi.org/10.1007/BF00696370

Download citation

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00696370

Key words

Navigation