Читаем Swimming Anatomy полностью

Lowering the chest too far can place extra stress on the ante-Lowering the chest too far can place extra stress on the anterior part of the shoulder. Those with a shoulder injury or a history of one should avoid this movement.


Swimming Focus

Incorporating medicine balls is an effective way to increase the difficulty of the push-up exercise for a person who can consistently maintain proper technique when performing regular push-ups. The unstable nature of the medicine balls places increased demand on the shoulder and core-stabilizing musculature, which will have to react to the hands being anchored on an unstable surface. Additionally, the altered hand position allows a larger available range of motion when performing the exercise, which will strengthen the muscles through a larger range.



VARIATION

Medicine Ball Push-Up With Staggered Hand Placement

The staggered hand placement (one hand on a medicine ball and one hand on the floor) creates a challenging scenario because each hand is in a different position. The challenge is similar to that encountered when swimming freestyle and backstroke. The altered hand position places more strengthening emphasis on the hand on the medicine ball. Additionally, the added rotation of the trunk alters the demands placed on the abdominal core musculature.




Barbell Flat Bench Press




Execution


1. Lie flat on the bench and position your feet shoulder-width apart and flat on the floor.

2. Grasp the bar with an overhand grip with your arms straight and your hands approximately shoulder-width apart.

3. Slowly lower the bar until it just barely touches the middle of your chest.

4. Drive the bar upward until your elbows are extended.


Muscles Involved

Primary:Pectoralis major

Secondary:Anterior deltoid, triceps brachii


Swimming Focus

The bench press is the primary exercise used in almost all athletic realms to strengthen the pectoralis major. This exercise allows you to strengthen the pectoralis major through a wide range of motion, which will carry over to strengthening the pull phase of freestyle, butterfly, and breaststroke. Although it uses the same muscle groups as push-ups do, the resistance can be varied, overcoming one of the disadvantages of push-ups. Lowering the bar to the middle of the chest (nipple line) is important; doing this helps bring the elbows down along the side of the body. Lowering the bar to a point on the upper chest (like the clavicles) keeps the elbows high, placing undo stress on the anterior part of the shoulder.



VARIATION

Dumbbell Flat Bench Press

Using dumbbells allows the hands to move independently of each other, creating an exercise that more closely relates to the independent demands encountered while swimming. Using dumbbells also allows the arms to be isolated from one another, which prevents a stronger arm from compensating for a weaker arm.



Dumbbell Physioball Bench Press




Execution


1. Holding a dumbbell in each hand, sit on the physioball.

2. Slide down into a bridge position with your neck and shoulders balanced on the ball.

3. While keeping your hips straight, lower the dumbbells to the level of your chest.

4. Press the dumbbells upward until your elbows are almost locked.


Muscles Involved

Primary:Pectoralis major

Secondary:Anterior deltoid, triceps brachii


Swimming Focus

This exercise has the same benefits as the dumbbell variation of the barbell flat bench press but has the added benefit of requiring you to activate additional muscle groups to maintain body position. Having only the feet and shoulders as contact points supporting the body places high demands on the stabilizing muscles of both the torso and the hips. Because of the unstable nature of the physioball, the stabilizing muscles that are functioning to maintain body position are constantly being challenged.

While performing the exercise, the hips and torso should be held in a position in which a straight line can be drawn from the knees, through the hips and torso, to the top of the head. Maintaining this body position mimics the demands encountered while holding a streamlined position. As with other exercises, excessive arching or rounding of the low back increases the risk of injury.



SAFETY TIP

Young swimmers should not perform this exercise until they have demonstrated proper bench-pressing technique on a stable bench.



Barbell Incline Bench Press




Execution


1. Sit on an incline bench (angled between 45 and 60 degrees) and position your feet shoulder-width apart.

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Обручев Сергей Владимирович (1891-1965 гг.) известный советский геолог и географ, член-корр. АН СССР. Высоко образованный человек - владел 10 иностранными языками. Сын академика В.А.Обручева, . будущий исследователь Азии, Сибири, Якутии, Арктики, родился в г. Иркутске, получил геологическое образование в Московском университете, закончив который в 1915 г., после недолгой работы на кафедре оказался в Геологическом комитете и был командирован для изучения геологии в Сибирь, на р. Ангара в ее среднем течении. Здесь он провел несколько полевых сезонов. Наиболее известны его экспедиции на Северо-Восток СССР. Совершил одно из значительных географических открытий в северо-восточной Азии - системы хр. Черского - водораздельной части Яно-Индигирского междуречья. На северо-востоке Якутии в Оймяконе им был установлен Полюс холода северного полушария На Среднесибирском плоскогорье - открыт один из крупнейших в мире - Тунгусский угольный бассейн. С.В. Обручев был организатором и руководителем более 40 экспедиций в неосвоенных и трудно доступных территориях России. С 1939 на протяжении более 15 лет его полевые работы были связаны с Прибайкальем и Саяно-Тувинским нагорьем. В честь С.В.Обручева названы горы на Северо-востоке страны, полуостров и мыс на Новой Земле.

Сергей Владимирович Обручев

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