ABDUCTION ANATOMY HOW TO
ABDUCTION ANATOMY PROFESSIONAL

The vast majority of trunk/torso rotation occurs in the thoracic spine (see thoracic rotation). Note: There is practically no rotation that occurs at the lumbar spine due to the design of the facet joints in the lumbar region, which only allow up to 2 degrees of rotation (this is a protective mechanism, as too much lumbar rotation would put the spinal cord at high risk of injury). If you do them, use low to moderate loads with higher reps (10+).īending/rounding the lumbar spine by moving the torso anteriorly (forward).īending the lumbar spine laterally (to the left or right side), away from the sagittal plane (midline), by moving the torso to the left or right. Round-back exercises can be potentially dangerous, especially with heavier loads. Round-back exercises train the lumbar extensors dynamically flat back exercises train them isometrically. Straightening/arching the lumbar spine by moving the torso posteriorly (backward). Turning the torso the left or right by rotating the thoracic spine in either direction. So, it’s best to do higher reps with low to moderate loads.īending/rounding the thoracic spine by moving the upper torso anteriorly (forward).īending the thoracic spine laterally (to the left or right side), away from the sagittal plane (midline), by moving the upper torso to the left or right. Since most round-back exercises also involve lumbar spine rounding (not just thoracic rounding), it can be potentially dangerous if using heavy weight. Round-back exercises train the thoracic extensors dynamically flat back exercises train them isometrically. Straightening/arching the thoracic spine by moving the upper torso posteriorly (backward). Turning the head and neck to the left or right by rotating the cervical spine in either direction. That is, contract the muscle you are reviewing and complete the different actions that the muscle is capable of making.Straightening/arching the cervical spine by moving the head and neck posteriorly (backward).īending/rounding the cervical spine by moving the head and neck anteriorly (forward).īending the cervical spine laterally (to the left or right side), away from the sagittal plane (midline), by moving head and neck to the left or right. Look at the picture of the muscle, find it on your body, and picture how it is contracting as it produces its associated movement or movements. In the case of fingers and toes, it is spreading the digits apart, away from the centerline of the hand or foot. What the Action Looks Like (Try It Yourself)īend the back of your hand toward your forearmĪ helpful way to learn anatomy is to move and mimic the actions for the muscles you are learning that week. Abduction is a motion that pulls a structure or part away from the midline of the body, carried out by one or more abductor muscles. The two main actions of the wrist are flexion and extension. The wrist joint consists of the distal ends of the radius and ulna and the carpal bones of the hand. The two main actions at the elbow are flexion and extension. The elbow joint consists of the humerus, radius and ulna bones. Pectoralis major and anterior fibers of deltoid The actions occurs as you then move your arms in front of you Latissimus dorsi and posterior fibers of deltoidįrom the starting position, lift your arms out to the side. The action occurs as you then move your arms out to the side. Also, anatomical position requires the shoulders to be in external rotation.įor the start postion, lift your arms in front of you. This action at the shoulder can occur when your arm is in different positions (flexion, abduction, etc.).įrom a position of internal shoulder rotation, rotate your arm so that the elbow faces backward. Latissimus dorsi, teres major (“little lat”)įrom the anatomical position, rotate your arm so that the elbow faces forward. Return (lower) your arms from shoulder flexion or lift your arms behind you Pectoralis major, and anterior fibers of the deltoid What the Action Looks Like (Try It Yourself!)

Many actions occur at this ball-and-socket joint. The glenohumeral joint-commonly referred to as the shoulder joint-consists of the attachment of the humerus bone to the scapula. Here, we will look at the muscles that move the arm at the shoulder, elbow, and wrist joints. We then started breaking down each body part, with the last blog looking at the muscles that move the scapulae.

ABDUCTION ANATOMY HOW TO

In an earlier blog, we looked at how to study anatomy.

ABDUCTION ANATOMY PROFESSIONAL

As a fitness professional and an exam candidate, there is no way of getting around the fact that you need to know your anatomy! Understanding how the body moves and creates movement with the muscles is a huge part of the job.

Abduction anatomy