We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Muscle phosphorus magnetic resonance spectroscopy oxidative indices correlate with physical activity.
- Authors
Tartaglia, M. Carmela; Chen, Jacqueline T.; Caramanos, Zografos; Taivassalo, Tanja; Arnold, Douglas L.; Argov, Zohar; Tartaglia, M C; Chen, J T; Caramanos, Z; Taivassalo, T; Arnold, D L; Argov, Z
- Abstract
The purpose of this study was to assess the effect of physical deconditioning on skeletal muscle's oxidative metabolism as evaluated by phosphorus-31 magnetic resonance spectroscopy ((31)P MRS). Twenty-seven subjects without muscle disease, representing a wide range of fitness levels, were evaluated with (31)P MRS. Spectra were obtained at rest and during recovery from in-magnet exercise. The data show a significant correlation between maximum resting metabolic equivalent (MET) score and the following (31)P MRS recovery indices: adenosine diphosphate and phosphocreatine recovery half-time; initial phosphocreatine resynthesis rate; calculated estimation of mitochondrial capacity; pH at end of exercise; and phosphocreatine depletion. In addition, significant differences between the deconditioned and conditioned group were found for all of the aforementioned recovery indices. At rest, only the inorganic phosphate concentration was significantly different between the two groups. These data indicate that physical activity level should be taken into account when assessing patients' oxidative metabolism with (31)P MRS.
- Publication
Muscle & Nerve, 2000, Vol 23, Issue 2, p175
- ISSN
0148-639X
- Publication type
journal article
- DOI
10.1002/(SICI)1097-4598(200002)23:2<175::AID-MUS5>3.0.CO;2-R