A: Unfortunately, many long-term effects of medications are not known since many medications are not studied for over 6 to 12 months. Adderall (amphetamine/dextroamphetamine) is a medication that has been used for many years in the treatment of ADHD and narcolepsy.
Answer by Nicole Cooper. Confidence votes 32. The role ATP plays in muscle contraction is that ATP binds to sites on myosin heads, inducing a conformational change in the actin binding site and reducing the affinity for the actin substrate. Hydrolysis of ATP then cocks the myosin head and moves it closer to the z disk.
Rating Newest Oldest. Best Answer: Once muscle contraction starts the regeneration of ATP must occur rapidly. There are three primary sources of ATP which, in order of their utilization, are creatine phosphate (CP), anaerobic glycolysis, and oxidative phosphorylation. Energy from ATP derives from cleaving of the terminal phosphate of the ATP molecule.