Gerontology · 2009 · 52 citations · 7 references
Natural SciencesInfectious DiseasesMathematicsDynamical SystemsOptimizationTuberculosis ControlControl Of Dynamical SystemsControl TheoryInfectious Disease DynamicsOptimal ControlOrdinary Differential Equation ModelsTuberculosis PreventionInfectious Disease ModelsNumerical Solutions Of Ordinary Differential EquationsOptimal Control FormulationOptimal Control ModelsOptimal Control Of Nonlinear SystemsOptimality ConditionsPontryagin Maximum PrinciplePontryagin's Maximum Principle
The purpose of this study was to determine the effects of a maximal isokinetic training program on strength and muscle mass in a group of untrained men 73 +/- 7.3 (range 68-82) years of age. Testing and training were conducted on an isokinetic dynamometer. Training consisted of one set of six maximal knee flexion and extension movements at 60 deg*s(-1) performed three times per week for 12 weeks. The subjects trained the right leg only, the left leg serving as a within-subject control. Trained leg peak torque increased by 18.1% for knee extension (from 107.2 +/- 42.9 to 126.6 +/- 44.6 Nm; p < 0.05) and by 18.2% for knee flexion (from 85.1 +/- 21.1 to 100.4 + or - 25.5 Nm; p < 0.05). Urinary creatinine levels increased by 24.3% (NS). We conclude that maximal isokinetic training at 60 deg*s(-1) increases strength and a urinary index of muscle mass in a group of aged untrained men.
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