Tag Archives: muscles

Resistance Band Exercises : Resistance Band Exercises: Teaser with Reverse Fly

Resistance Band Exercises : Resistance Band Exercises: Teaser with Reverse Fly

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Resistance band exercises are widely used by a variety of health and fitness practitioners – both for general strength and conditioning and rehabilitation or injury prevention.

Resistance band exercises are ideal for home exercise programs and can easily be incorporated into a circuit training format helping to condition cardiovascular system as well as strengthening specific muscle groups. Because resistance tubing is so compact and lightweight, it can be used while away from home.

Resistance tubing is extremely adaptable and a large number of resistance band exercises can be developed with very little additional equipment. Smaller muscle groups that are hard to train with more traditional free weight exercises can be targeted with resistance tubing. This makes it particularly appealing to athletic conditioning.

Sports-specific conditioning involves training movements rather than individual muscle groups. The versatility of resistance band exercises allows the athlete to mirror very closely the movement patterns in their sport with varying degrees of resistance. Perhaps even more important is the role they can play in injury prevention and rehabilitation.

Resistance Band Exercises for Injury Prevention & Rehabilitation

Few studies have examined the effects of resistance band exercises on strengthening a specific muscle group. As a result no definite guidelines exist as to the number of sets, repetitions and amount of resistance that should be used. However, many health and fitness practitioners use resistance tubing routinely to prevent and rehabilitate overuse injuries by strengthening often smaller, neglected muscle groups.

For example, athletic movements such as a baseball pitch can place considerable demand on the posterior rotator cuff muscles (external rotators, supraspinatus, infraspinatus, teres minor). These muscles undergo eccentric contraction during the declaration phase of the pitch  which places considerable strain on the shoulder . However, the same muscles may not be effectively worked with traditional isotonic exercises . If larger muscle groups, such as the deltoids, become stronger and are able to cope with and apply greater force, this may further compromise the rotator cuff muscles.

A program of resistance band exercises to compliment regular strength training may be able to improve the strength of more isolated muscle groups such as the rotator cuff . Additionally, training these otherwise neglected muscles may even improve performance.

Of course resistance band exercises can be used for more than simply strengthening more isolated muscle groups. The exercises below work the major muscle groups are only a small sample of the many hundreds of variations that have been devised.

Athletes may want to incorporate them into an off season training program when recovery and regeneration is the most important goal.

Resistance bands are available in a range of colors that relate to their stiffness or resistance. Color-coding varies between the brands but it typically as follows:

Yellow (thin)

Red (medium)

Green (heavy)

Blue (extra heavy)

Black (special heavy)

Silver (super heavy)

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Heart valve surgery – operation for replacement heart valves

Heart valve surgery – operation for replacement heart valves

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heart valves maintain the unidirectional flow of blood in the heart by opening and closing depending on the difference in pressure on each side. They are mechanically similar to reed valves.

Atrioventricular valves

These are small valves that prevent backflow from the ventricles into the atria during systole. They are anchored to the wall of the ventricle by chordae tendineae, which prevent the valve from inverting.

The chordae tendineae are attached to papillary muscles that cause tension to better hold the valve. Together, the papillary muscles and the chordae tendineae are known as the subvalvular apparatus. The function of the subvalvular apparatus is to keep the valves from prolapsing into the atria when they close. The subvalvular apparatus have no effect on the opening and closure of the valves, however. This is caused entirely by the pressure gradient across the valve.

The closure of the AV valves is heard as the first heart sound

Echocardiography — The echocardiogram is an ultrasound of the heart. Using standard ultrasound techniques, two-dimensional slices of the heart can be imaged. 

Heart — The heart is a hollow, muscular organ in vertebrates that pumps blood through the blood vessels by repeated, rhythmic contractions, or a similareart. Veins form part of the circulatory system. The vessels that carry blood …

Vein — In biology, a vein is a blood vessel which carries blood toward the heart. Veins form part of the circulatory system

The tricuspid valve is the three flapped valve on the right side of the heart, between the right atrium and the right ventricle which stops the backflow of blood between the two. It has three cusps.

Semilunar valves

These are located at the base of both the pulmonary trunk (pulmonary artery) and the aorta, the two arteries taking blood out of the ventricles. These valves permit blood to be forced into the arteries, but prevent backflow of blood from the arteries into the ventricles. [1] These valves do not have chordae tendineae, and are more similar to valves in veins than atrioventricular valves.

Aortic valve

Main article: aortic valve

The aortic valve lies between the left ventricle and the aorta. The aortic valve has three cusps. During ventricular systole, pressure rises in the left ventricle. When the pressure in the left ventricle rises above the pressure in the aorta, the aortic valve opens, allowing blood to exit the left ventricle into the aorta. When ventricular systole ends, pressure in the left ventricle rapidly drops. When the pressure in the left ventricle decreases, the aortic pressure forces the aortic valve to close. The closure of the aortic valve contributes the A2 component of the second heart sound (S2).

The most common congenital abnormality of the heart is the bicuspid aortic valve. In this condition, instead of three cusps, the aortic valve has two cusps. This condition is often undiagnosed until the person develops calcific aortic stenosis. Aortic stenosis occurs in this condition usually in patients in their 40s or 50s, an average of over 10 years earlier than in people with normal aortic valves.

Pulmonary valve

Main article: pulmonary valve

The pulmonary valve (sometimes referred to as the pulmonic valve) is the semilunar valve of the heart that lies between the right ventricle and the pulmonary artery and has three cusps. Similar to the aortic valve, the pulmonary valve opens in ventricular systole, when the pressure in the right ventricle rises above the pressure in the pulmonary artery. At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonary valve.

The closure of the pulmonary valve contributes the P2 component of the second heart sound (S2). The right heart is a low-pressure system, so the P2 component of the second heart sound is usually softer than the A2 component of the second heart sound. However, it is physiologically normal in some young people to hear both components separated during inhalation.

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Healthy Fat Loss

It is possible to achieve healthy fat loss if you follow your fat loss regime thoroughly taking all precautions. The main things that go wrong in a fat loss workout are that people sometimes stop taking enough food or even sometimes completely stop eating. But this doesn’t help; rather it damages your body.

The biggest misconception about healthy weight loss needs to be clear. It never means limiting food intake. If you do that then your body starts feeding on stored fat from muscle of your body which degrades health. Beside fat food and drink offers many important vitamins and nutrients which are necessary to run our body.

To achieve healthy fat loss you should find out a healthy weight loss regime giving primary importance to exercise and diet plan.

Exercise

Planning an exercise is one of the most important steps involved in achieving healthy fat loss. Thighs, buttocks are some of the key areas you need to focus on. Following a proper exercise and regularity in the exercise are the key to healthy weight loss. Cardiology activity is a great way to burn body fat. It also keeps your heart healthy. Overall mind-body exercises are always good to follow.

Diet Plan

Exercise alone can’t give you your desire body; you also need a good diet plan to achieve healthy weight loss. Fresh fruits and vegetables are most important than any other food for a person under fat lose regime. It is even better if you can keep on eating fruits in the morning to work off the sugar of your body throughout the day.

Many people don’t drink enough water. Drinking water is another important aspect of healthy weight loss regime. It is recommended to have six to eight glass of water per day. Leafy vegetables are a source of water. In case you don’t stick to the recommended water intake, leafy vegetables can provide you water.