Final answer:
EMS uses electrical current for muscle activation.
Step-by-step explanation:
Electrical Muscle Stimulation (EMS) is a therapeutic technique that involves the use of electrical impulses to elicit muscle contractions. It is employed for various purposes, including rehabilitation, muscle strengthening, pain management, and improving muscle function. EMS devices deliver controlled electrical currents to targeted muscles, mimicking the natural electrical signals from the central nervous system that cause muscles to contract.
The correct answer is c) EMS uses electrical current for muscle activation. EMS stands for Electrical Muscle Stimulation, which involves the use of electrical current to activate skeletal muscle and initiate contraction. This technique is commonly used in physical therapy and sports medicine to strengthen muscles and improve recovery.