Constant relationships between force, phosphate concentration, and pH in muscles with differential fatigability

M. W. Weiner, R. S. Moussavi, A. J. Baker, Michael D Boska, R. G. Miller

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

We examined the relationships between muscle force and both phosphate and hydrogen ion concentrations in muscles with differential fatigability and in different types of exercise. We measured force and31phosphorus nuclear magnetic resonance spectra from the tibialis anterior (a slow-contracting, fatigue resistant, postural leg muscle) during a sustained maximum contraction (anaerobic exercise) and during intermittent contractions (aerobic exercise). We observed similar relationships between the decline in muscle force during fatigue and changes in both phosphate and hydrogen ion concentrations during both aerobic and anaerobic exercise in tibialis anterior. Furthermore, these relationships were similar to those previously observed in the adductor pollicis. The demonstration of constant relationships between muscle contraction force and metabolism under different exercise conditions and in muscles of different function supports the view that both phosphate and hydrogen ions are important regulatory factors in the fatigue of human muscle.

Original languageEnglish (US)
Pages (from-to)1888-1893
Number of pages6
JournalNeurology
Volume40
Issue number12
StatePublished - Jan 1 1990

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Phosphates
Muscles
Fatigue
Exercise
Muscle Fatigue
Muscle Contraction
Protons
Leg
Magnetic Resonance Spectroscopy

ASJC Scopus subject areas

  • Clinical Neurology

Cite this

Weiner, M. W., Moussavi, R. S., Baker, A. J., Boska, M. D., & Miller, R. G. (1990). Constant relationships between force, phosphate concentration, and pH in muscles with differential fatigability. Neurology, 40(12), 1888-1893.

Constant relationships between force, phosphate concentration, and pH in muscles with differential fatigability. / Weiner, M. W.; Moussavi, R. S.; Baker, A. J.; Boska, Michael D; Miller, R. G.

In: Neurology, Vol. 40, No. 12, 01.01.1990, p. 1888-1893.

Research output: Contribution to journalArticle

Weiner, MW, Moussavi, RS, Baker, AJ, Boska, MD & Miller, RG 1990, 'Constant relationships between force, phosphate concentration, and pH in muscles with differential fatigability', Neurology, vol. 40, no. 12, pp. 1888-1893.
Weiner MW, Moussavi RS, Baker AJ, Boska MD, Miller RG. Constant relationships between force, phosphate concentration, and pH in muscles with differential fatigability. Neurology. 1990 Jan 1;40(12):1888-1893.
Weiner, M. W. ; Moussavi, R. S. ; Baker, A. J. ; Boska, Michael D ; Miller, R. G. / Constant relationships between force, phosphate concentration, and pH in muscles with differential fatigability. In: Neurology. 1990 ; Vol. 40, No. 12. pp. 1888-1893.
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