Which way are the quadriceps contracted during the downward phase of the deadlift?

The muscle contraction can be divided into three groups:

1. eccentric

2. concentric

3. isometric

The eccentric muscle contractions cause the muscles to be lengthen and elongated and generates a greater opposing force. During the Downward phase of the deadlift, the downwards movement of the quadriceps makes them elongate to support the weight person is lifting.

So, the correct answer is eccentric muscle contractions.

answer; the correct answer is desert plants;

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.