What component of physical fitness is involved in javelin throw?
Muscular strength and endurance are essential in javelin throwing. Healthy, strong leg muscles are necessary to increase momentum and achieve the high-intensity sprinting that leads up to an efficient throw. Upper arm and shoulder muscle endurance and mobility play a role in determining the throwing speed and form.
What three positions does the arm travels through when throwing the javelin?
The beginning is the start and run (body develops speed and rhythm), the middle or transition (which places the body and javelin in the correct position for throwing) are the crossovers and the end is the release (delivery).
How many antagonistic pairs are there?
Muscles that work like this are called antagonistic pairs. In an antagonistic muscle pair as one muscle contracts the other muscle relaxes or lengthens….Antagonistic muscle pairs.
| Biceps | Triceps |
|---|---|
| Gluteus maximus | Hip flexors |
| Gastrocnemius | Tibialis anterior |
| Pectoralis major | Latissimus dorsi |
Is the agonist the prime mover?
The working muscle is called the prime mover or agonist. These muscles cause the movement to occur. They create the normal range of movement in a joint by contracting. Agonists are also referred to as prime movers since they are the muscles that are primarily responsible for generating the movement.
Are biceps and triceps synergist?
There are three muscles on the upper arm that are parallel to the long axis of the humerus, the biceps brachii, the brachialis, and the triceps brachii. The biceps brachii has two synergist muscles that assist it in flexing the forearm. Both are found on the anterior side of the arm and forearm.
Are biceps and triceps antagonistic pairs?
Antagonist and agonist muscles often occur in pairs, called antagonistic pairs. As one muscle contracts, the other relaxes. An example of an antagonistic pair is the biceps and triceps; to contract, the triceps relaxes while the biceps contracts to lift the arm.
What connects the 2 bones together?
The place where two or more bones come together is called a joint. The bones at a joint are held together by strong bands of tissue called ligaments which allow the bones to move.
Did you notice how muscles are attached to bones?
A tendon is a fibrous connective tissue which attaches muscle to the bone. 2. A number of beefed-up features to the bones support the wings and allow flight. The backbones in the chest cavity are fused together, and the ribs overlap, making an extremely strong and rigid rib cage.
Do all muscles attach to bone if not what else do they attach to?
Face Muscles Facial muscles don’t all attach directly to bone like they do in the rest of the body. Instead, many of them attach under the skin. This allows you to contract your facial muscles just a tiny bit and make dozens of different kinds of faces. Even the smallest movement can turn a smile into a frown.
What is the site of muscle attachment to long bones?
Tendons
What is the material in the center of most of your bones?
The soft bone marrow, which is found inside many bones, makes most of the body’s red blood cells, white blood cells, and platelets.
How do muscle attachments affect a joint?
Muscles can pull bones, but they can’t push them back to the original position. So they work in pairs of flexors and extensors. The flexor contracts to bend a limb at a joint. Then, when the movement is completed, the flexor relaxes and the extensor contracts to extend or straighten the limb at the same joint.
How do muscle attachments affect a joint quizlet?
Muscles are attached and are the source of strength of the movement caused by the body. Muscles contract and relax causing the movement supported by the joints and bones in that particular area. It covers the end of the bone making it easier to move by allowing a glide over the joint. B)