E-Articles - Health and Fitness

Lower back pain with irritation of the L3, L4 nerve roots can cause pain and spasm in the rectus femoris and pain and spasm in this muscle will aggravate lower back pain. This muscle is one of the f

According to USFDA, a combination product is one composed of any combination of a drug and device; biological product and device; drug and biological product

our muscles termed the quadriceps muscles. The quadriceps are the muscles in the front of the thigh and are responsible for straightening the knee. The rectus femoris arises from an area on the pelv

; or drug, device, and biological product and fixed dose combination would include two or more combinations of drug.

Examples of combination products may in

c bone known as anterior superior iliac spine and the part of the bone just above the hip joint. It inserts at the upper border of the kneecap (patella) and also to the tubercle on the front of the sh

lude drug-coated devices, drugs packaged with delivery devices in medical kits, and drugs and devices packaged separately but intended to be used together.

n bone (tibia). Its action is to bend the thigh upwards (hip flexion) and to straighten the knee (knee extension). It receives the L2-L4 nerve root supply through the femoral nerve.

Since rectus fem

here is enormous increase in the number of combination products entering the market in the recent years. Combination products have proven advantages but fixe

ris is the only muscle of the quadriceps that crosses over the hip joint as well as the knee joint, this muscle is more vulnerable to trauma than the other three quadriceps muscles (vastus lateralis, v

d dose combinations are still in the process of convincing regulatory authority on their advantages over the single ingredient formulations.

Combination pro

stus medialis and vastus intermedius).

When the hip and knees are bent as in sitting, crouching or squatting, rectus femoris and tensor fascia lata muscles are very tight at the hip and excessively st

ucts have become life saving products for the pharmaceutical companies who doesn’t have many innovative molecules in their product pipeline and have been inc

retched at the knee. This predisposes the muscles to get easily traumatized. Additionally, aging of the L3, L4 nerve root, injury, or irritation from presence of degenerative arthritis of the spine,

easingly used in the product life cycle management. Even the companies having product patents are trying to extend their product life cycle through the combi

slipped disc, bulging disc are also responsible for underlying neurogenic weakness in this muscle.

Since the quadriceps is essential for keeping the knee steady when going down steps, inclines and in

nation products and maximize the revenues. But the companies involved in this practice are overlooking that they are burdening the patients both economically

he walking phase after the heel strikes the ground, weakness of the rectus femoris and the tensor fascia lata (which also has L4 nerve root fibers) can predispose the person to falls. To strengthen t

and physically. They need to rightly judge the benefits of the combination products and they have to even look at the risks involved when combining the produ

e rectus femoris and tensor fascia lata muscles, the principle involves education starting first with shortening contractions of the spinal extensors from the neck to the lower back and the hip extenso

ts. Some of the combination products were well accepted by physicians while others suffered. Companies involved in development of combination products are fi

muscles. The hip flexor tightness is secondary to imbalanced contraction of the hip flexor muscles such as rectus femoris, tensor fascia lata, adductor muscles and the iliopsoas muscles in the presenc

ding difficulty in defining their combination products and facing various challenges from selecting a combination to marketing it.

Following aspects would a

e of weak back and hip extensors such as the gluteus maximus, lower part of the adductor magnus muscle and the hamstring muscles. When the knee is flexed, the hamstring muscles do not participate in s

dd to the challenges in developing combination products:

Which markets to tap where the combination products can do fairly well?
Which combination prod

raightening the hip (extension). Therefore most of the strength of the hamstrings is directed to bending the knee (flexion). The health education for shortening contractions of the spinal extensors

cts are meaningful and rational?
Which therapeutic categories to select?
Which Combinations can address unmet needs of the patients?
Do combin

and hip extensor muscles such as gluteus maximus and adductor magnus must be performed first to return strength to these muscles. These extensor muscles are the main muscles constantly exposed to leng

tions increase the patient compliance?
What would be the developing cost?
How to tackle the risks encountered during combination product developmen

hening contractions at the hip making them weak.

At the knee, the weakness in the extension force results in unopposed pull of the knee flexor muscles. The shortening and spasm in the knee flexor mus

t?

As combination products don't fit into the traditional categories of drugs, medical devices, or biological products, the USFDA is in the process of devel

les such as the hamstrings and the gastrocnemius muscles are difficult to release primarily. Therefore shortening contractions of the knee extensor muscles such as the rectus femoris, tensor fascia la

ping new procedures for reviewing their safety, efficacy and quality.

Professional from academic institutions, pharmaceutical industries, health care indust

ta and the other three quadriceps muscles need to be performed first.

It is difficult to isolate these muscles to be individually trained for shortening contractions. Selective activation of these mu

y and representatives from various regulatory agencies are working out to design the regulatory requirements for manufacture and sale of combination products

cles is best performed with motor point stimulation using the eToims Twitch Relief Method.

Thus in the treatment of lower back pain and discomfort, rectus femoris has to be treated together with all t

.

As there is an increasing trend of the combination products companies manufacturing such products should be able to tackle the problems involved in the de

e other large and powerful muscles that cross multiple joints and are exposed to lengthening contractions. Therefore, treatments must involve the entire spinal muscles from the neck to the base of the

elopment. They need to be wiser in analyzing the market trends and the regulatory requirements.

Companies that provide selfless information through particip

tion in industry events and feedback to regulatory authorities would be able to face the challenges and will be successful in developing combination products

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