How To Draw Reverse Jointed Legs
Drawing legs is a complex endeavor. So why is this the Easy Step-past-Step guide to drawing legs? This guide will take you through simplified skeletal and muscle anatomy of the legs with piece of cake to understand explanations and illustrations!
As with my previous drawing tutorials, nosotros will break downwardly a complex task into a series of smaller and simpler steps. We will kickoff cover the shape of the leg and major landmarks, then wait at the skeletal construction, and then the muscles, and finally will become over cartoon examples, step-by-pace.
Here is a summary of the cartoon procedure for cartoon legs:
Establish proportions and angles with skeletal guidelines, then work on identifying and drawing the rhythms of the shape, and so fill in the muscle groups, and finally rework the overall drawing correcting for any errors.
In preparation for this guide, I created many leg drawings, three pace-by-footstep examples are at the stop of this guide. Here is what we volition cover:
Tabular array of contents:
- The general shape of the leg
- Simplified skeletal structure of the leg
- Femur os
- Tibia and Fibula
- Pelvic bones
- Simplified muscle groups of the leg
- Quads and Sartorius
- Hamstrings
- Calves
- Glutes and tensor
- Adductors
- Human knee cap overview
- Musculus Function
- How to draw the legs – step-by-step
- Example ane
- Instance 2
- Example 3
1. How to Draw Legs – General shape of the leg
Earlier we go over simplified beefcake of the leg, let's look at where we desire to end upwardly. Beneath are the muscle groups we will become over.
Annotation these are not all the muscles of the leg. I took measures to simplify anatomy and I edited out a lot of smaller muscle groups, to go u.s.a. the minimum we need to draw the legs.
Permit'due south await a bit at what we demand to know well-nigh the shape of the legs:
A neat leg drawing is greater than the sum of its parts, that is to say, – greater than just all the muscles slapped together.
The position of the legs tin define a pose in figure drawing. Permit this section serve as a reminder that after you learn all the muscles of the leg, when you draw, you should practice non lose sight of the overall.
The shapes in your drawings of the legs should instantly read properly. If the shape does not read correctly, something went wrong along the way – even if you call back the muscles are where they should be – I would get back and check.
With that said, let's go over important landmarks when drawing the leg.
On the sketch above, (illustration on the far left) we see that the dogie muscle (gastrocnemius) is positioned higher on the outside and lower on the within of the leg.
Information technology is the opposite with the lateral (exterior) and medial (inside) malleolus areas – the sections where tibia and fibula meet with the foot. In those areas, the outside is lower and the inside of the leg has the bony bit higher.
On the analogy on the far right, we can see I indicated the tibia (shin os). In fact, you tin can feel this os right nether the peel on the front-inner side of the leg as it is more often than not uncovered past muscle from the knee to the foot. Subsequently in this tutorial, we will likewise cover the knee cap in more detail.
In the centre analogy above, the cracking trochanter is indicated – a department of the femur os very important to drawing the leg as it will help to properly situate the glutes and other muscles around information technology. We will also cover it below.
On the left, y'all see how the sartorius muscle separates the adductors from the quad muscles of the leg, observe the modify in direction. Find also that the sartorius appears over the adductors from the front. Nosotros will cover the quads and the sartorius in the muscles section.
In the image on the right, notice that there are numerous muscle groups that connect to the medial (inside) condyle of the tibia over the muscles of the calves.
All of these details are important to making your drawings of the legs more believable. Now, without further ado, let's go over the skeletal structure of the leg.
2. How to Draw Legs – Simplified skeletal structure of the leg
Legs function similar to arms, in that at that place is one large bone from the hip to the knee and ii smaller ones from the knee to the human foot. Muscles of the leg (quads and hamstrings) also function similarly to triceps and biceps muscles of the arm.
The quads are like the triceps muscles and help extend the limb, while hamstrings are like the biceps and help bend the limb.
For now, permit's endeavor to get a full general sense of the skeletal structure. We want to know the skeleton considering in the next steps nosotros will offset studying and attaching muscles to this structure.
3. How to Draw Legs – Simplified musculus groups of the leg
Before we cover the quad and hamstring muscles. Here is a simple anatomical tip about those muscles that should save united states of america much time:
All of the quad muscles take a mutual insertion point at the kneecap. And all the hamstring muscles have a common origin point, at the ischium.
You lot should also know, that we apply the terms 'origin' and 'insertion' when discussing muscle anatomy for a reason. The terms ascertain more than just zipper points.
The origin portion of the muscle doesn't move during muscle wrinkle, while the insertion portion does move. Usually, origin points are medial, or closer to the center of the body. Knowing the difference gives artists an reward when creating anatomically right drawings.
Quads (Quadriceps) and Sartorius
There are 4 muscles in the quads. We will look at 3 because the forth is institute deep in the leg, not visible in the drawing of the effigy.
The quad muscles extend the leg, similarly to how the triceps muscles extend the arm.
The origin of vastus lateralis is at the greater trochanter area (just below), at the front (anterior) surface.
The insertion of vastus lateralis is at the common quadriceps tendon enclosing the kneecap (patella). This insertion point is the same for the other ii quadriceps muscles nosotros will comprehend!
In fact, all of these quad muscles connect into a tendon that then moves downward and connects at the kneecap.
Origin of vastus medialis is starting at the top of the femur and downwards along the medial section of the femur.
The insertion of vastus medialis is at the common quadriceps tendon enclosing the kneecap.
Some muscles originate in multiple places, like this one. Rectus femoris originates at anterior inferior iliac spine, and groove superior to the acetabulum. In the image above, it is simplified to connect but to the inductive inferior iliac spine which volition work fine for our purpose of cartoon the leg.
The all-time fashion to recall this origin (for simplified anatomical drawings) is to remember that it connects correct above the hip joint at the forepart.
The insertion of rectus femoris is at the mutual quadriceps tendon enclosing the kneecap (patella) just like the other quadriceps muscles nosotros discussed.
What is really important for the quads group, is to keep in mind that the fullness of the rectus femoris is situated above the other ii muscles surrounding it to the left and right – it is the higher sitting musculus on the leg, continue that in mind as yous describe the leg from the front.
Now permit's add the sartorius muscle to quads group.
The sartorius muscle, separates the quads from the abductor muscles at the front of the leg.
Its origin is at the anterior superior iliac spine, and the insertion is at the top of the medial (inner) surface of the tibia bone. (It inserts at the superlative of the insertion of the semitendinosus muscle of the hamstring grouping – encounter beneath).
let'south speedily recap what we learned and so far, nosotros have rectus femoris that sits on the front of the femur bone, vastus muscles on each side of it, and the sartorius muscle that we just covered higher up.
IT band
Before moving on to the muscles on the back of the leg, nosotros need to comprehend 1 more item, the IT band.
The IT ring (iliotibial band) also known as the iliotibial tract, is a long piece of connective tissue, or fascia. The It band stretches across vastus lateralis on the outside of the leg and helps to extend, abduct, and rotate the hip.
It stretches from the tenser muscle (covered beneath) and inserts at the lateral (outside) condyle (ending) of the tibia os (shinbone).
The It band is sparse, and not easily visible, and it not visible in near stylized drawings of anatomy. However, it is often visible in old primary drawings and in very detailed anatomical drawings in general.
I mention it here in case you discover yourself wondering almost actress definition on top of the vastus lateralis muscle (the section of the quads on the outside of the leg). Now y'all know what it is!
Hamstrings
Hamstrings are on the back of the leg. They office like the biceps muscle of the arm, when you curve your knee, hamstrings flex.
The origin of the semimembranosus is the aforementioned every bit the other major muscles of the hamstrings – at the ischium (the curved os forming the base of operations of each half of the pelvis).
The insertion of the semimembranosus is at the medial condyle of the tibia (a condyle is a rounded protuberance at the cease of some bones, forming an articulation with another os).
The origin of biceps femoris is at the ischium (the curved bone forming the base of each half of the pelvis). This origin is the same for all three of the muscles nosotros volition comprehend for the hamstrings, making this group piece of cake to report for cartoon.
The insertion of biceps femoris is on the lateral (outer) side of the head (top) of the fibula.
The origin is at the ischium equally with the other hamstring muscles nosotros covered. The insertion of semitendinosus is at the medial surface of the superior shaft of the tibia (inner surface of the upper portion of tibia).
Let's rapidly review what we have covered and so far with the hamstring muscles. There are 3 we need to know, one – semimembranosus, sits underneath the other ii – the semitendinosus and the biceps femoris.
Calves
The origin of the gastrocnemius muscles is at the posterior (back) surfaces of femoral condyles. (so back sections of the bottom tip of the femur bone!).
Insertion is at the back of the heel via the Achilles tendon. I won't hash out the anatomy of the foot in this guide since nosotros have enough to talk over with the legs. Nonetheless, if you are curious near how to draw the pes, bank check out my tutorial here.
In the prototype beneath, let's look at all the muscles nosotros discussed then far:
Every bit you tin encounter, I added three muscles in pink on tiptop of the diagram in add-on to what we accept already covered. Ii muscles of the glutes and the tensor, let's talk over them at present.
Glutes and Tensor
Tensor fasciae latae (Tensor)
The origin of the tensor is at aterior superior iliac spine and insertion at iliotibial tract – (It BAND) that attaches to the lateral condyle of the tibia (remember nosotros covered the It band to a higher place? aye, information technology is the same one).
This musculus latches on to the It ring that moves all the way down to the tibia (right on top the vastus lateralis). The IT ring is not shown above since it is sparse and vastus lateralis is what will testify through most of the time.
While the tensor musculus seems small-scale, do non overlook it, information technology is 1 of those muscles that if omitted will provide for a leg cartoon that never looks right.
Gluteus medius
The gluteus medius has an origin at the posterior section of the ilium (Gluteal surface of ilium ) with insertion at the lateral surface of the greater trochanter (femur).
Gluteus maximus
The gluteus maximus has an origin at sacrum and coccyx, and the gluteal surface of ilium with insertion at the Iliotibial tract (It ring), and gluteal tuberosity of the femur.
Adductors
There are multiple muscles at the adductor grouping, they generally originate from the pelvis and insert at various points at the femur. This muscle grouping helps bring the leg back towards the middle of the body.
Most are visible on the within of the leg. As you see in the diagram above, I am simplifying this entire section. Just why?
Equally I was studying the muscles of the leg for drawing, it became clear that information technology is difficult to become a grasp of all the muscles all at once.
I suggest studying beefcake for drawing in passes. If you are studying the anatomy of the legs for the first pass, know that the adductor group is there and is important. One time y'all are familiar with the remainder of the muscles in this guide, the group can exist revisited.
I volition exit you with this drawing that shows the gracilis musculus, a major adductor, together with semitendinosus (hamstring group covered above) and sartorius (covered in a higher place). As I mentioned higher up, in that location are more than adductor muscles to report, and there are more than muscles to study at the genu-to-pes department also.
Muscles of the leg – simplified anatomy review, Origin and Insertion
| Insertion | Origin | Insertion |
|---|---|---|
| Quads (front of leg): | ||
| Rectus femoris | Anterior inferior iliac spine, and groove superior to the acetabulum (right higher up the hip joint) | At the common quadriceps tendon enclosing the kneecap (patella). |
| Vastus lateralis | Greater trochanter expanse, at the front (anterior) surface. | aforementioned as rectus femoris |
| Vastus medialis | Starting at the top of the femur and downward along the medial section of the femur. | same as rectus femoris |
| Sartorius: | At the anterior superior iliac spine. | Insertion is at the top of the medial (inner) surface of the tibia bone. |
| Hamstrings (dorsum of leg): | ||
| Biceps femoris | ischium -the curved bone forming the base of each half of the pelvis | femoris is on the lateral (outer) side of the head (top) of the fibula. |
| Semi-tendinosus | Aforementioned as biceps femoris | Medial surface of the superior shaft of the tibia (inner surface of upper portion of tibia) |
| Semi-membranosus | aforementioned as biceps femoris | medial condyle of the tibia |
| Calves – gastrocnemius | Medial and lateral heads ascend from posterior surfaces of femoral condyles. (so back sections of the bottom tip of the femur os!) | Dorsum of heel of the foot via Achilles tendon |
| Glutes: | ||
| Gluteus maximus | Sacrum and coccyx, gluteal surface of ilium | Iliotibial tract, gluteal tuberosity of femur |
| Gluteus medius | Posterior department of the ilium (Gluteal surface of ilium ) | lateral surface of the greater trochanter (femur) |
| Tensor fasciae latae | Aterior superior iliac spine | Iliotibial tract – (Information technology Ring) that attached to the lateral condyle of the tibia. |
| Adductors (grouped): | There are multiple muscles a the adductor group, they by and large originate from the pelvis | and inert at diverse points at the femur. |
Kneecap overview
Drawing the knee is a large topic and, so I created a split up tutorial going over drawing the human knee in particular. All the same, allow's affect the basics of what is happening at the human knee articulation for cartoon the leg.
At the human knee, condyles of the femur bone and the tibia come together. A condyle is a rounded protuberance at the end of some bones, serving articulation with another bone. The condyles on both of these basic are massive and often some of the bone of the condyle can be seen on the surface.
The patella (knee cap), connects the tendons that unify the quad muscles – all of them wrap into information technology, so the patellar tendon moves down and connects at the to acme of the tibia.
The place where the tendon connects is a pointy bony flake, which sometimes can make information technology seem like there are two kneecaps, one on tiptop of the other. Well, the one on the peak is the articulatio genus cap, the stuff underneath is its tendon that attached on top of the tibia – the patellar tendon.
At this bespeak we discussed at length the basic and muscles of the leg. Let's now review the functions of the muscles, and and so move to drawing the legs step-by-footstep.
4. How to Draw Legs – Muscle Function
Muscles of the leg – simplified anatomy review, Function
| Muscle | Role |
|---|---|
| Quads: | |
| Rectus femoris | Extension of the leg at the genu joint |
| Vastus lateralis | Extension of the leg at the knee joint |
| Vastus medialis | Extension of the leg at the knee joint |
| Sartorius: | Flexion, abduction, rotation of the thigh at hip, flexion and rotation of lower leg at articulatio genus |
| Hamstrings: | |
| Biceps femoris | Flexes the leg at knee joint joint |
| Semi-tendinosus | Flexes the leg at articulatio genus joint |
| Semi-membranosus | Flexes the leg at knee articulation |
| Calves – gastrocnemius | Flexion of foot, flexes leg at knee |
| Glutes: | |
| Gluteus maximus | Extension and rotation of thigh at the hip joint |
| Gluteus medius | Abduction and extension of thigh at hip joint |
| Tensor fasciae latae | flexion, rotation and abduction of thigh at hip joint |
| Adductors (grouped): | adduct thigh, flex thigh and rotate thigh. |
five. How to Depict Legs – step-by-step examples
Cartoon legs – Example ane:
Permit's have this drawing of the legs stride-by-pace together:
When I draw-in these offset marks on the canvas, I am measuring proportions, relative position (of one leg to the other), and angles at which the legs appear to the viewer. I endeavor to practise this all at once in this first stride.
Ofttimes it is a lot to think virtually, especially when drawing something complex like the legs, so accept your time with this first step. Measuring things out, get dorsum if you take to.
Feeling confident with the pose, I get-go to block in shapes.
At this time I focus on orienting the master muscle groups, the quads show up the most in this cartoon, so I focus on placing them. Call up the beefcake of the leg as you are drawing – this is where our beefcake overview (come across above) really starts to become useful.
I know that at the forepart, three muscles of the quads are visible, vastus medialis on the within, vastus lateralis on the exterior, and rectus femoris in between the two.
I know that the belly of the femoris musculus sits college on the leg. Information technology is much easier to spot all of this on the model when you know what you should come across when you draw.
Using this knowledge I place the muscle groups appropriately, not only based on the information I come across in the model, but based on my framing of this information given the beefcake groundwork I now accept.
After placing the quads, I also added placement for the sartorius musculus, that divides the quads from adductors on the forepart of the leg.
The sartorius is most visible and easy to place as a diagonal line running from the knee to the to of the hip.
I decided to describe over what I built so far with cleaner lines in this footstep.
With structure and placement out of the fashion, I can begin to shade the muscles of the leg to give our drawing of the legs some book.
Shading is another topic, but you see me calculation some more than here, I also (equally you saw in the previous footstep) added a neutral color to the unabridged prototype then that I could place white highlights.
Here I separated the cartoon of the legs from the background past placing in a half-tone with a value closer to the shadow areas.
Although the drawing is not finished, I added some highlights to run into where I am with book. I now have the darkest darks and the lightest lights on my canvas and will work within these parameters to finish the drawing.
Finally, I added rendering detail and tried to define separate muscle groups past defining the volume of each.
Knowing the shape of the muscles will define how you approach rendering them, the placement of shadows and lights. While adept reference tin can provide this information, combining it with your knowledge of muscle anatomy should produce fifty-fifty better results.
Hither is video procedure of the legs cartoon higher up:
Cartoon legs – Example two:
Same equally in the outset example, I start with uncomplicated skeletal typhoon that defines the pose, angles and proportional relationships. I am thinking about the position of the feet, and identifying landmarks.
Happy with the placement and angles in the original sketch, I move the drawing along with some rough outlines of the shapes I am trying to develop.
Try to imagine the lines on paper before you draw them.
Having the foundation of the drawing finished, I added detail with a bit more than confidence. You can already meet the adductors on the inside of the legs, every bit well as the sartorius musculus and some indication of the quad grouping.
Here I drew in all of the muscles of the upper leg. Can you identify the quad muscles? Vastus lateralis, rectus femoris and vastus medialis? Can you see the hamstrings or the tensor? If you tin can't identify these yet, don't worry, review the muscle section and come dorsum to this sketch.
In this stride, I added some shadows to try to carve up the class from the canvas.
Here I added the mid-tones to the cartoon, every bit well as the darker darks.
And finally some highlights to identify the forms of this sketch of the legs.
Drawing legs – Example three
Let's look at ane more instance:
I kickoff this cartoon like I did the other two, with a very basic skeletal outline of the angles and proportions. You should be asking yourself things like – where is the knee on this leg in relation to the knee of the other? What are the angles of the anxiety in relation to one another? – Ever depict in context to other landmarks already on the page.
Once the basic angles and proportions look fine to me, I create a sketch shape outline noting major landmarks.
In this step, I added a stronger outline to amend read the shape. I also separated the quads from hamstrings in the leg closest to us.
Hither I added a bit of shading and some drop shadows to situate the legs. If you are curious about light and shading, bank check out my tutorial on exactly that at this link.
This concludes my footstep-by-step guide to cartoon legs. For me, leg beefcake has been more difficult to report than the other parts of the torso, I hope I made information technology a bit easier for you with this guide!
Remember that drawing legs is like drawing anything else – combine knowledge of the subject with drawing skills for best results. Nosotros spent a lot of time going over how to draw the legs, information technology is now fourth dimension for you to put what you learned to practice!
For my other anatomy tutorials, visit this link. As always, you tin provide feedback on this guide by contacting me hither.
Source: https://gvaat.com/blog/how-to-draw-legs-the-easy-step-by-step-guide/
Posted by: deeringbefiscure.blogspot.com
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