Massages feel good because they release “feel-good” endorphins into the body, similar to a runner’s high. They can also feel good because the brain releases oxytocin which is a natural chemical that reduces pain and can serve as an antidepressant. How do you massage sore muscles after a workout? WhenRead More →

The biarticular hamstrings extend the pelvis and femur and flex the tibia. Gastrocnemius extends the tibia and foot and flexes the femur. Quadriceps involvement in lower limb extension is facilitated by these structures. Which of the following is an example of a biarticular muscle? If a muscle crosses two jointsRead More →