The Italian Journal of Neurological Sciences

, Volume 14, Issue 3, pp 263–267 | Cite as

Energy metabolism in muscle paresis and recovery studied by31P-MR spectroscopy: A case report

  • Funicello R. 
  • Barbiroli B. 
  • Zaniol P. 
  • Martinelli P. 
Case Reports


We report a31P Magnetic Resonance Spectroscopy (31P-MRS) study on the changes of energy metabolism in human leg anterior and lateral compartment muscles with paresis due to compression from a herniated lumbar disc at the L4-L5 level and recovery to normality. A low phosphocreatine to inorganic phosphate ratio due to both decreased phosphocreatine and increased inorganic phosphate contents and a normal intracellular pH were the features of muscles with paresis. Changes of31P-MRS parameters were followed during 18 weeks of treatment with physical therapy until complete recovery. Results show that31P-MRS is a useful clinical tool for detecting even small biochemical changes that may occur in muscles and for checking the effects of therapy.

Key Words

Skeletal muscle energy metabolism denervation in vivo spectroscopy 


Abbiamo studiato in vivo con la spettroscopia NMR dei composti fosforilati il metabolismo energetico dei muscoli della loggia anterolaterale della gamba destra di un paziente affetto da paresi per ernia discale a livello di L4-L5 e le successive modificazioni durante il recupero alla normalità. I muscoli paretici erano caratterizzati da un basso rapporto fosfocreatina/fosfato inorganico dovuto sia a una diminuzione della fosfocreatina che ad un aumento del fosfato inorganico. I cambiamenti metabolici sono stati seguiti per 18 settimane durante i successivi cicli di terapia fisica fino al completo recupero. I risultati dimostrano, anche in questo caso, che la spettroscopia NMR è utile per valutare modeste modificazioni biochimiche che avvengono nei muscoli e per controllare l'effetto della terapia.


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Copyright information

© Masson Italia Periodici S.r.l. 1993

Authors and Affiliations

  • Funicello R. 
    • 1
  • Barbiroli B. 
    • 1
  • Zaniol P. 
    • 2
  • Martinelli P. 
    • 3
  1. 1.Cattedra di Biochimica ClinicaUniversità di BolognaItaly
  2. 2.Istituto di RadiologiaUniversità di ModenaItaly
  3. 3.Istituto di Clinica NeurologicaUniversità di BolognaBologna

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