Myotonic dystrophy, also termed dystrophia myotonica (DM), is an autosomal dominant, progressive, multisystem, myotonic disorder, of which the key feature is delayed muscle relaxation (clinical myotonia) because of muscle fiber hyperexcitability from spontaneous or induced runs of repetitive muscle fiber action potentials (electrical myotonia).[1] DM is genetically heterogeneous and is subdivided into type-1 (DM1) and type-2 (DM2). Although there are aspects that differentiate DM1 and DM2, many features overlap, so that only molecular genetic investigations unambiguously distinguish them (Table 1).[2]

Getting Started With Dumbbells

Getting Started With Dumbbells

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.

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