The medial head starts in the upper part of the humerus, just below the groove of the radial nerve. It also comes from the back of the humerus, the medial intermuscular septum, and the lateral intermuscular septum in its lower part. The lateral and long heads cover most of the medial head, so you can only see it at the end of the humerus.
The lateral head comes from the dorsal surface of the humerus, from the greater tubercle down to the area of the lateral intermuscular septum. It is next to and above the groove of the radial nerve.
In the motor column of the spinal cord, each of the three fascicles has its own motorneuron subnucleus. The medial head is mostly made up of small type I fibers and motor units, the lateral head of large type IIb fibers and motor units, and the long head of a mix of fiber types and motor units. People have said that each fascicle "may be thought of as a separate muscle with its own functions."
Some research suggests that there may be more than one tendon, but the fibers come together to form a single tendon that attaches to the olecranon process of the ulna and the posterior wall of the elbow joint capsule, where bursae (cushion sacks) are often found. Parts of the common tendon spread out into the fascia of the forearm and can almost cover the anconeus muscle.The triceps are the big muscles on the back of the upper arms. They move the elbow, the shoulder, and the forearm.
Working out your triceps is an important part of any strength training routine because it helps you build strength in your upper body. Strong triceps help keep your shoulder joint stable, which is important for everyday tasks and sports like tennis, volleyball, and basketball.
Trying to do tricep kickbacks
Warm up for 5 to 10 minutes before doing these exercises to get your heart rate up and your muscles loose. This can be done by walking, stretching, or doing jumping jacks.
Make sure you use the right form so you can work the muscles well and safely. To make these exercises harder, keep the triceps in the top position for an extra one to two seconds.
Most of the time, dumbbells are used to do kickbacks for the triceps.
With weights
This move teaches you how to work on your triceps. Choose a weight that is a little hard but light enough that you can do all the sets correctly and without straining.
Start with dumbbells that weigh between 5 and 10 pounds each, and as you get stronger, slowly add more weight. If you don't have weights, you can use soup cans or water bottles instead.
You can also stand or kneel in a split stance and do this exercise one arm at a time.
To do this, keep your knees slightly bent and hold a dumbbell in each hand with your palms facing each other.
Engage your core and keep your back straight as you bend forward at the waist, bringing your torso almost parallel to the floor.
Keep your upper arms close to your body and your head in line with your spine. Tuck your chin in a little bit.
As you let your breath out, straighten your elbows to work your triceps.
Keep your upper arms still and only move your forearms as you do this.
Stop here, and then take a deep breath in to move the weights back to the starting position.
Do 2–3 sets of 10–15 reps each.
ความคิดเห็น