Int J Sports Med 2003; 24(3): 179-182
DOI: 10.1055/s-2003-39091
Training & Testing
© Georg Thieme Verlag Stuttgart · New York

Effects of Active Recovery Under a Decreasing Work Load Following Intense Muscular Exercise on Intramuscular Energy Metabolism

K.  Sairyo1 , K.  Iwanaga2, 3 , N.  Yoshida1 , T.  Mishiro1 , T.  Terai1 , T.  Sasa1 , T.  Ikata1
  • 1 Department of Orthopedics, The University of Tokushima, Japan
  • 2 Saga Research Institute, Otsuka Pharmaceutical Co., Ltd., Japan
  • 3 Present; Section of Ergonomics and Physiological Anthropology, Graduate School of Science and Technology, Chiba University, Japan
Further Information

Publication History



Accepted after revision: September 15, 2002

Publication Date:
12 May 2003 (online)

Abstract

The effect of active recovery at a decreasing % of MVC following intense muscular exercise on intramuscular pH was investigated in vivo using 31P-MRS. Seven healthy men participated, and their right wrist flexor muscle group was examined. The subjects were asked to flex their right wrist at 60 % of the maximum voluntary contraction (MVC) every 2 s until the intracellular pH in the wrist flexor muscle decreased to 6.4. After the exercise period, the subjects underwent active or passive recovery for 10 min. For the active recovery (AR), the subject was asked to continue exercising at a decreasing % of MVC, decreasing from 25 to 5 % MVC every two min during AR. 31P-MR-spectra were obtained throughout the experiments, and from the spectra the intracellular pH (pHi) was calculated as an indicator of intracellular events. AR data were compared to data collected during passive recovery (PR). During AR, the pHi increased immediately after the exercise period; whereas in that of PR, it did not recover within 5 minutes after exercise. The results suggested that mild exercise was an effective manoeuver to promote recovery from intramuscular metabolic acidosis.

References

  • 1 Bangsbo J, Graham T, Johansen L, Saltin B. Muscle lactate metabolism in recovery from intense exhaustive exercise: impact of light exercise.  J Appl Physiol. 1994;  77 1890- 1895
  • 2 Belcastro A N, Bonen A. Lactic acid removal rates during controlled and uncontrolled recovery exercise.  J Appl Physiol. 1975;  39 718- 723
  • 3 Bonen A, Belcastro A N. Comparison of self-selected methods on lactic acid removal rate.  Med Sci Sports. 1976;  8 176- 178
  • 4 Iwanaga K, Yoshimitsu H, Kamata T, Sairyo K. 31P-MRS study of change in intracellular pH during sustained static contractions in human.  Ann Physiol Anthrop. 1991;  10 83- 90
  • 5 Iwanaga K, Sakurai M, Minami T, Kato Y, Sairyo K. Thresholds for decrease in intracellular pH and increase in blood lactate during progressive exercise: 31P-MRS study.  Ann Physiol Anthrop. 1992;  11 641- 648
  • 6 Iwanaga K, Sakurai M, Minami T, Kato Y, Sairyo K, Kikuchi Y. Is the intracellular pH threshold an aerobic threshold from the view point of intracellular events?.  Applied Human Science. 1996;  15 59- 65
  • 7 Kato Y, Ikata T, Takata S, Sairyo K, Iwanaga K. Effects of specific warm-up at various intensities on energy metabolism during subsequent exercise.  J Sports Med Physical Fitness. 2000;  40 126- 130
  • 8 McGrail J C, Bonen A, Belcastro A N. Dependence of lactate removal on muscle metabolism in man.  Eur J Appl Physiol. 1978;  39 89- 97
  • 9 Minotti J R, Johnson E C, Hidson T L, Zuroske G, Fukushima E, Murata G, Wise L E, Chick T M, Icenogle M V. Training induced muscle adaptations are independent of systemic adaptations.  J Appl Physiol. 1990;  68 289- 294
  • 10 Monedero J, Donne B. Effect of recovery intervensions on lactate removal and subsequent performance.  Int J Sports Med. 2000;  21 593- 597
  • 11 Rontoyannis G P. Lactate elimination from the blood during active recovery.  J Sports Med. 1990;  28 115- 123
  • 12 Sahlin K. Muscle fatigue and lactic acid accumulation.  Acta Physiol Scand. 1986;  128 (Suppl 556) 83- 91
  • 13 Sairyo K, Ikata T, Takai H, Iwanaga K. Effect of active recovery and passive recovery on intracellular pH following muscle contraction, a 31P-MRS study.  Ann Physiol Anthrop. 1993;  12 173- 179
  • 14 Sasa T, Sairyo K, Yoshida N, Ishikawa M, Fukunaga M. Effects of ovariectomy on intramuscular energy metabolism in young rats: How does sports-related-amenorrhea affect muscles of young female athletes?.  J Physiol Anthropol. 2001;  20 125- 129
  • 15 Taylor D J, Bore P J, Styles P, Gadian D G, Radda K. Bioenergetics of intact human muscle. A 31P nuclear magnetic resonance study.  Mol Biol Med. 1983;  1 77- 94
  • 16 Tesch P A, Wright J E. Recovery from short-term intense exercise. Its relation to capillary supply and blood lactate concentration.  Eur J Appl Physiol. 1983;  52 98-103
  • 17 Weltmen A, Stamfold B A, Moffatt R J, Katch V L. Exercise recovery, lactate removal, and subsequent high intensity exercise. Res.  Quart. 1977;  48 786- 795
  • 18 Yoshida N, Ikata T, Sairyo K, Matsuura T, Sasa T, Koga K, Fukunaga M. Evaluation of disuse atrophy of rat skeletal muscle based on muscle energy metabolism assessed by 31P-MRS.  J Physiol Anthropol. 2001;  20 247- 252

K. Sairyo, MD

Department of Orthopedic Surgery · The University of Tokushima

3-18-15 Kuramoto · Tokushima 770-8503 · Japan ·

Phone: +81-88-633-7240

Fax: +81-88-633-0178

Email: sairyo@clin.med.tokushima-u.ac.jp

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