Although resistance testing is widely used in the clinical management of HIV-1 treatment, questions remain. Up until now, the assays have shown a short-term modest viral benefit. Clinicians should value the results obtained with these assays but should, however, not overestimate their importance because there still exists some uncertainty concerning the clinical importance of certain genotypic mutations and phenotypic levels of susceptibility. The decision to use a specific combina tion of drugs should be made by the clinician, taking into account all clinical, immunological, viral, and pharmacological factors, as well as adherence issues and treatment history.
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The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.