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В пляжном песке в 100 раз больше бактерий, чем в морской воде

Исследователи из Гавайского университета в Маноа сообщили любителям загорать на пляже плохую новость. Оказывается, настоящим рассадником бактерий является песок, а вовсе не морская вода.

Если увидев плакат с надписью, запрещающей купание в воде из-за фекального загрязнения, вы брезгливо морщите нос и достаете покрывало для принятия солнечных ванн на песке, то такой подход является в корне неверным и чреват болями в животе и диареей. Дело в том, что содержание фекальных бактерий в пляжном песке в 100 раз выше, чем в морской воде, передает EurekAlert.

К таким выводам пришли исследователи из Гавайского университета в Маноа, которые провели лабораторный эксперимент по созданию микрокосма из пляжного песка, морской воды и сточных вод, чтобы выяснить, как бактериальные популяции, в том числе фекальные бактерии, вызывающие развитие кишечных инфекций, будут изменяться с течением времени. Оказалось, что в смоделированной среде песчаного пляжа микробные сообщества, как правило, распадаются гораздо медленнее, чем в воде.

Отвечая на вопрос, каким образом фекальные бактерии попадают в песок, ученые объяснили, что содержащиеся в испражнениях человека и теплокровных животных микроорганизмы оказываются на пляже вследствие утечки сточных вод, неправильно утилизированных подгузников или произошедших с пловцами «аварий».

Более подробные результаты исследования были опубликованы в журнале Environmental Science & Technology.

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  1. Incorporating these options into your train routine can supply reduction to your again but nonetheless
    target those crucial muscles effectively. Developing the muscular tissues within the back is a helpful method
    to help enhance core and spinal stability, in addition to posture.
    This machine-assisted train focuses on the lats,
    the massive muscle tissue on the perimeters of your again. Band
    Rows aren’t going to replace Barbell Rows for growing strength, but they’ll work great in a pinch if
    you’re traveling. It makes the setup extra comfortable and convenient to row,
    however when you place metallic straight in your barbell it could possibly scratch it
    up. As A End Result Of the weight on the bar sits
    back closer to your midline it’ll take somewhat of the stress off the low back as in comparability with a
    Barbell Row. The second mistake I see all too
    typically is drained athletes that begin to appear
    to be they’re doing the worm.
    Either that, or you discover yourself rounding your spine, potentially
    exposing yourself to an increased threat of harm. Each substitute presents
    its own advantages, similar to diminished stress on the decrease back and enhanced stability together with
    better muscle activation. Your again is an extremely
    necessary a part of your body for posture, strength, physique balance, and
    total function. Poor posture can cause shoulder,
    neck, and back pain, together with extra critical situations like exhaustion, hypertension, and decreased temper.

    Hold your again straight, core engaged, and shoulder
    blades pulled collectively as you raise the weight in the direction of your lower chest.
    Focus on squeezing the back muscular tissues on the top
    of the movement earlier than slowly decreasing the load again down. To carry out single-arm
    dumbbell rows, begin by inserting one knee and hand on a bench, together with your different leg
    extended behind you. Grasp a dumbbell with
    your free hand, permitting it to hold straight down. Keep your
    again flat and core engaged as you pull the dumbbell up towards your rib cage,
    squeezing your shoulder blade at the top of the
    movement.
    Rear delt rows may be carried out with dumbbells, barbells,
    cables, or resistance bands. Not Like the normal barbell
    row, the pendlay row starts from the bottom. The bent over row
    is an exercise that strengthens the muscles of your center again. This carry additionally has the extra
    advantage of working your latissimus dorsi, or decrease again, and the muscles in your
    arms. Incorporating this lift into your weekly train routines will strengthen your back and enhance your posture.

    Secondary muscles worked on the barbell row are the trapezius, rhomboids, rear delts,
    teres minor and infraspinatus. The seal row is finished on a modified bench that’s taller than the standard flat bench.

    This permits you to get a full lat stretch from a horizontal row whereas lying on a flat bench.
    Some gyms even have specifically angled bars that may allow
    you to tug your elbows previous your torso. Like
    I mentioned earlier that most of them are horizontal pulls, you’ll be working the same muscle tissue again and again. When performing this exercise it’s essential that you simply maintain your
    back flat and decide a weight that you don’t should yank your
    whole physique to rise up. You can even carry out the
    lat pulldown using resistance bands; all you want is a suitable anchor point.

    The decrease the angle, the extra you will work the lats, with a higher angle preferentially focusing
    on the mid trapezius. The batwing row is a chest supported row variation that has multiple variations within the train. As you’ll see in the video, you carry out this with the bench flat, which
    means you’re limiting your vary of movement.
    If you want to ditch the dumbbells all collectively, get your self on the
    cable row machine. To carry out this motion, do a normal dumbbell row, however if you attain the underside, push your
    wrists in path of the ground and your shoulder blade
    should round over. Easy to be taught – a lot
    of power workouts are onerous to grasp; squats and deadlifts, for instance.
    Lat pulldowns aren’t actually that complicated, and
    even a beginner ought to have the power to choose them up quickly.

    Then, facing the pinnacle forwards, bracing the core, pulling the shoulders down and
    leaning the torso slightly back, the lifter pulls the
    bands to the edges of their torso. To perform a repetition of the Pendlay
    row, the lifter will first set a loaded barbell on the ground
    immediately over their mid-foot, as if establishing for a deadlift.

    On the other end of the spectrum to the Yates row, the Pendlay row
    options a a lot more horizontal torso orientation in order
    to maximize back muscle contraction and vary of motion. In comparison to bent over rows, Yates rows excel at
    loading capability, engagement of the biceps brachii and diffusing strain away from the decrease again. The train engages
    your shoulder joint and likewise involves scapular retraction. Whereas you’re doing the motion, numerous neutralizing muscle tissue maintain your body in place.

    You can modify the angle of this bench from 40 to 70 degrees to higher fit various body shapes and
    affect muscle activation through the exercise. For optimal outcomes whereas performing an incline dumbbell row, it’s important to preserve a whole range of motion and choose weights that enable correct execution with out momentum-based assistance.
    Ensure that you hold your core engaged and preserve a
    flat again throughout each section of the exercise to ensure
    each stability and security. It also ensures that the focused muscles are being effectively worked on – on this case, those within your upper back.
    Dedicate time to perfecting your posture before
    embarking on this movement so as to maximize the benefits for build up
    a powerful upper again via bar rows. Whether it’s as a
    end result of lower again issues or just the will for variety in your workout, finding the best
    replacement workouts may be key to maintaining back energy while avoiding strain. In this text, we’ll discover a spread
    of workouts that supply the advantages of bent over
    rows without the added threat.
    Some options are designed to extend energy, while
    others are for powerlifting (like the Yates row).

    The incline barbell row is a coaching variation that is performed by lying face
    down on the incline bench and grabbing the barbell with a pronated grip.
    Bent over rows and weight training, offer an array of positive well being advantages and enhance power in the muscle.
    They additionally promote stimulation and development to the primary back muscles and make the most of secondary muscle teams, such as the shoulders,
    arms, and core.
    Whereas there are different advantages to this
    exercise, the three above are the main ones for
    my part and produce essentially the most bang on your buck with
    this exercise. There are however some that really feel this exercise carries some drawbacks, one, specifically, being that bent over rows can be bad in your again. Particularly for people who like the upper physique training mixed with cardiovascular coaching from rowing,
    swimming may be an excellent various. The drawback of those free weight
    workout routines is that whereas they might help with
    cardiovascular health, they’re just as nice as a rowing machine for enhancing that health
    element.
    The t-bar row is meant to primarily work the muscle tissue of your
    center again and lats and to do so effectively, your torso
    needs to be bending forward until it’s simply above parallel to the bottom.
    Nevertheless, it’s an awesome alternative to the t-bar
    row as it’s going to work the muscular tissues of your again, as well as your triceps lengthy head and rear delts.
    Nevertheless, if you don’t have access to these, we’re going to suggest some options
    for t bar row exercise which might be just as effective for growing a bigger
    bac. It could be performed using a barbell loaded right into
    a landmine attachment or on a dedicated t-bar row machine.
    The inverted row is a great body weight exercise for working your back muscular tissues particularly the higher again. Total alternating the barbell row out of the exercise routine can help stop accidents and promote better muscle
    balance and development as nicely as being effective at breaking via
    plateaus. In fact, Pendlay started doing barbell
    rows when he was competing in powerlifting.
    The banded row doesn’t utilize a very high absolute load or instantly place pressure on the posterior chain.
    Because of this, the banded row isn’t very fatiguing, which might allow you to take this train to failure multiple
    instances throughout the week. This train solely requires a resistance
    band which lets you take this gym on the road, to a
    hotel, or just exercise at home. In a t-bar row, one finish of the bar is going to be fastened to the bottom by landmine.

    This will enable for a linear bar path which is ready to decrease the technical necessities of the exercise.

    Rows are the last word train for constructing
    the higher again, and cable rows are second to none amongst them.

    The seated cable row is a stellar exercise because it provides plenty of options by means of grip and positioning that allow you
    to hit the again from a number of angles, maximizing muscle
    recruitment. So, if you’re looking to change up your back routine or wouldn’t have access to a barbell these barbell row alternate
    options could be efficient in helping you build energy and muscle within the higher again.
    If your torso stays extra upright, this reduces tension on these muscular tissues and locations
    extra of the weight load in your higher back 
    muscles. If you feel an extreme quantity of engagement of your biceps as you pull the burden in the path of your torso you may
    not be retracting your shoulder blades sufficient.
    If you perform the t-bar row along with your knees locked
    out this will very likely influence your approach.
    It will work the higher again similarly to the seated row, and may tolerate much larger reps, so
    is nice for a beginning train, or coupling with a superset.
    A Hammer Power machine is a plate-loaded machine that
    gives a hybrid between free weights and machines.
    Every Hammer Power machine makes use of iso-lateral technology
    so as to work all sides of your body at a time. The lat
    pull-in is a unilateral variation of the lat pull-down that permits
    you to transfer the lats through their entire range of movement from full extension all the way
    to full contraction. The resistance band excessive row allows you to simulate
    the Hammer Power excessive row at residence. With a resistance band, you possibly can comply
    with the identical angle of movement as with the hammer machine and work each side of the again unilaterally.

    We have been training weighted calisthenics for years, and we
    now have been in plenty of competitions round Europe.
    We are not right here to demonize any train, and bluntly replacing them with a safer alternative is not at all times
    one of the simplest ways to cope with the situation. Replacing
    the exercise may allow you to dodge the ache, but it doesnt address the underlying concern. She holds a BSc in Exercise and Sport
    Sciences and a Master of Research in Health and Wellbeing from the College of Exeter.
    She is on a mission to assist individuals
    live a fulfilling, impactful life by way of fitness and life-style.

    It is designed for explosive energy engagement and discourages
    ‘cheating’ through momentum utilization. This makes it an exceptionally effective movement for enhancing muscle growth and boosting strength ranges.
    When performing the T-bar row, position your ft at shoulder width and
    slightly bend your knees. Ensuring that you’ve a straight back is essential for spinal safety whereas executing the
    carry.
    The decrease two-thirds of the backbone, the lower ribs, and the
    iliac crest of the pelvis are the place the lat muscle fibers originate.
    They then travel diagonally to the pinnacle
    of the humerus within the armpit area. The apparent drawback with this machine
    is that not each fitness center has the Hammer Energy high-row machine.
    Except you are at a high-end fitness center, your training facility won’t have Hammer Power gear.
    If you load massive plates onto the finish of the barbell, it’s going to achieve your torso a
    bit quicker than a smaller plate. For proper activation of your again muscles, you ought to be squeezing your shoulder blades collectively
    at the prime of each repetition.
    Since you’re recruiting a unique part of your again which may be weaker, the incline dumbbell row may help improve your other lifts
    and overall upper body energy. The use of the bench not only changes the angle,
    but it additionally eliminates the power to use momentum, which can be thought of cheating.
    The incline dumbbell row is considered one of the exercises that helps to target those typically
    neglected muscular tissues due to the totally different angle you’re pulling
    from. Bent over rows are a cornerstone train for constructing back strength and muscle mass.
    Nonetheless, they can sometimes be uncomfortable or inaccessible for those with
    lower again ache or restricted mobility. There are loads
    of effective alternatives that may present related benefits with out
    the pressure.
    Lat pulldowns place very little strain in your lower again and might
    even assist stretch and decompress your spine. Dumbbell pullovers don’t
    look something like lat pulldowns, but they’re nonetheless a helpful lat pulldown different.
    Whereas there are pullover machines you should use, not each gym has one, and
    the dumbbell version is pretty efficient anyway. You’re performing virtually the very same movement because the rowing machine, minus
    the leg work.
    In truth, you might discover it unimaginable to hold up a impartial
    backbone as you do it. Extensive grip seated rows are a lot
    more decrease back-friendly, so they could be better for some lifters.
    Bent-over rows are usually considered a again train – and so they
    are! However, done with a wide grip and pulling the bar into your chest,
    this transfer can be a wonderful rear deltoid, mid-trap, and rhomboid exercise.

    Go light to make sure your lats don’t inadvertently take over during this exercise.

    One of the disadvantages of dumbbell reverse flys is that there is very little tension in your rear delts initially
    of the motion and plenty at the end. Utilizing cables instead of dumbbells retains your muscle tissue under pressure
    for longer, making this a more effective exercise.

    To allow for a larger vary of movement, stick to smaller plates
    and simply add more of them. We’re not referring to heavy weights right here but somewhat the dimensions
    of the plates. Keep the burden load mild to moderate (with the exception of pull ups that are determined by your personal bodyweight).

    The incline inclined y raise train is perfect for working the muscular tissues of your decrease
    traps. You can position your elbows at completely different angles from your physique however by holding them out wider will present you
    with probably the most higher back engagement.
    If you actually wish to fire up your lats then renegade rows are the greatest way to go.

    Lifters on vacation and these that want to avoid straining their lower again can each profit from selecting inverted rows over bent over rows.
    For a bodyweight alternative to the bent over row, the
    overwhelming majority of exercisers are largely constrained to the inverted row itself.
    In terms of effectiveness, I’d say the chest-supported dumbbell row is the most effective.
    It offers maximum lower again assist while also
    permitting for an excellent vary of motion. Working with dumbbells also lets you achieve extra balanced
    growth between the 2 sides of the again. A lot of them, nevertheless, don’t actually provide like-for-like options.
    As An Alternative they merely throw together a bunch of again workout routines, many of which have no relation to the bent over row at all.

    Select a resistance band with sufficient pressure to load the muscle tissue in your back.
    Somewhat than sticking to a strict rep scheme, go for bigger sets and stop when you’re 1-2 repetitions from technical failure to
    compensate for the lighter loading. For a visible assist, try this convenient video from RPI energy
    demonstrating the proper method for a supinated barbell row.
    This variation of the bent-over barbell row makes use of a supinated grip, which implies that your palms are facing up.

    Despite its widespread adoption, the bent over row does present
    a quantity of disadvantages which have led lifters to seek out alternative movements.
    When it involves the bent over row, an appropriate various must
    pull the arms horizontally, in order that the elbows end up behind the body.
    Try these 12 bent-over alternatives to discover one of the best
    workout routines for building the again of your desires whereas minimizing your risk of harm.
    To optimally stimulate your again muscle tissue for power
    and muscle gains while additionally allowing for full restoration between exercises, you must prepare your back each 3-4 days or
    twice per week. In distinction, the pull-up involves vertical pulling where the elbows are pointing straight down. Horizontal pulling is greatest
    for lat thickness, whereas vertical pulling higher promotes lat width.
    This movement is even more joint pleasant that
    the inverted row since you get to maintain your arms in a neutral place (palms
    facing) which is best for your shoulders.

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