When training ceases, or the body undergoes a long period of inertia (or detraining) following a period of physical training, it loses some or all of the positive gains achieved during training (Mujika & Padilla 2001; Tokmakidis et al., 2009). This suggests that training should take place continually to maintain the benefits of an exercise program, particularly in individuals with neurodegenerative diseases, like Parkinson’s, which results in accelerated deterioration of muscle function over time. It is impractical, however, to expect people to participate in training indefinitely. Studies into the effects of inactivity after training with the EMST150™ device have shown a decrease in MEP after four weeks and after eight weeks of detraining. However, MEPs tend to remain above baseline values (Baker et al., 2005; Chiara et al., 2006). A similar study of healthy people participating in inspiratory muscle strength training proved the benefits of training were maintained above baseline after six months of detraining or with minimal maintenance (two exercise days per week) (Romer & McConnell 2003). These studies suggest continued training through a maintenance program is essential if the benefits are to be continued.

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