What muscles are you talking about? all of them?
The correct answer is Blackout.
Blackout is a period of time where drinker is not able to recall.
Fainting is a common factor which causes black out other causes includes syncope and this is because of anxiety.
Low blood sugar and lack of oxygen is also a cause of blackout.
When a person has blackout he can not create memories.
Blackouts can occur for either two minutes or it can take some hours.
Answer:
gastrocnemius is the muscle on the back of the lower leg
Mainly it would deal with the tibia or fibula