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.
According to Muscle Physiology from the University of California, San Diego, ATP supplies the energy needed by muscles to contract. Ironically, ATP is also needed for muscle relaxation. The chemical stimulates muscle relaxation by disconnecting myosin and actin. Continue Reading.