Question

Questions: 1. Compare the results of Arm and Shoulder lifting? Which one do you recommend? 2 Com 1 11

Answer 1

shoulder is the part of the human torso forming a relatively horizontal surface running away from the neck while arm is the portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand or arm can be (usually used in the plural) a weapon.

There are mainly 3 classification of lifting where the human muscles involved:

1. Lifting the object off the ground: quads, hamstrings, glutes, abdominals, spinal erectors, forearms are required.
2. Lifting them to shoulder height: upper and middle fibers of traps, abdominals, erectors, biceps, front delt of shoulder, some chest, back for stabilization.
3. Lifting Over Head: upper and middle fibers of traps, all delt (rear, front, lateral), abdominals, erectors, triceps

Mainly the deltoids, pectorals, and triceps with a little help for the low back, glutes and legs.The primary movers are the deltoids (shoulder muscles), pectorals (chest) and triceps.

During lifting biceps, long and short flexors of the forearm and trapezius muscle work more than that of opposite group muscles. during carrying gait muscles of trunk and lower limb works (mainly calf at ankle, quadriceps at knee and gluteal at hip, erectors at trunk work maximally). as far as upper limb concerned it all depends whether you are carrying boxes close to your body, ergonomically correct one, or away from your body. If it is close to your body trapezius and wrist flexor muscles work maximum and if it is away from your body shoulder flexor, trunk extensors and trapezius works maximally. if lowering takes plays at sternum level, it involves shoulder, elbow and wrist flexors work maximally apart from concentric contraction of calf. finally word of caution that recent expensive muscle analysis equipments, such as EMG, force platform, 3D video analysis states that all muscle groups work during any kind of motion.

Hence Arm lifting is recommended over shoulder lifting.