Question

proper biomechanics reduce the risk of injury and improve performance. 1 point
true
false
the deadlift mainly uses the upper body muscles. 1 point
true
false
torque is a rotational force applied to joints during movement 1 point
true
false
during resistance training, the eccentric phase is when the muscle shortens. 1 point
true
false

Explanation:

1. Proper biomechanics align body movements correctly, minimizing injury - risk and enhancing performance. So, the first statement is True.
2. The deadlift is a compound exercise that mainly uses lower - body and posterior - chain muscles, not mainly upper - body muscles. So, the second statement is False.
3. Torque is indeed a rotational force applied to joints during movement. So, the third statement is True.
4. In resistance training, the eccentric phase is when the muscle lengthens, not shortens. So, the fourth statement is False.

Answer:

1. True
2. False
3. True
4. False