Tieto aplikácie a nástroje ochránia naše oči, radí odborník

Napísal Michal Krajčír 21. február 2023

Zrak je jedným z našich najdôležitejších zmyslov, vďaka ktorému vnímame svetlo, farby, tvary, ale aj priestor a vzdialenosti. Naše oči nám sprostredkujú až 80 % všetkých informácií. Práve tie často vyhľadávame prostredníctvom elektroniky, ako sú mobilné telefóny, tablety či počítače. 

pexels_andrea_piacquadio

Zdroj foto: Pexels (c) Andrea Piacquadio

Odborníci pritom už dlhšie varujú, že nadmerné vystavovanie sa tzv. modrému svetlu z displejov je pre oči namáhavé a škodlivé. Aby ste svojim očiam pomohli oddýchnuť si a vyhli sa nepríjemnostiam, stačí dodržiavať niekoľko pravidiel a používať aplikácie, ktoré pomôžu ochrániť váš zrak.

Svoj zrak by ste si mali chrániť nielen nosením dioptrických či slnečných okuliarov, ale tiež počas práce s počítačom či telefónom. Monitory a LED panely vyžarujú modré svetlo viacnásobne viac ako slnko či staršia zobrazovacia technológia. Štúdie potvrdzujú, že denne nad zariadeniami vyžarujúcimi modré svetlo strávime kľudne aj viac ako 10 hodín. A tento čas sa každý rok predlžuje. Dlhodobé vystavenie modrému svetlu nielen rozhadzuje cirkadiánne rytmy (24-hodinové cykly, ktoré sú súčasťou vnútorných hodín tela a ovplyvňujú množstvo procesov, napr. spánok a bdenie), ale tiež spôsobuje bolesť hlavy, začervenanie očí, ich bolesť, ale tiež suchosť očí a rozmazané videnie. Ako sa tomu účinne brániť?

Či už pracujete z domu alebo nie, rovnako trávite veľa času s vašimi elektronickými zariadeniami. Pamätajte na to, že je potrebné uľaviť vašim očiam malou pauzou, nazvime to pravidlo “20-6-20″, pri ktorom každých 20 min zameriate svoj zrak na predmet, ktorý je od vás vzdialený viac ako 6 metrov a to aspoň na 20 sekúnd. Môžete tým predísť únave, bolestiam hlavy, migréne, ale aj závažnejšiemu poškodeniu vášho zraku,“ hovorí Martin Slaný, optometrista a odborný garant optík FOKUS.

Pomôcť si však môžete aj rôznymi aplikáciami na ochranu zraku, ktoré sú buďto bezplatne dostupné pre Mac, PC alebo ich majú najnovšie smartfóny častokrát zabudované a nájdete ich v nastaveniach. Upozorniť vás môžu na pravidlo 20-6-20 alebo vám jednoducho pomôžu načasovať prestávky tak, aby si vaše oči oddýchli. „Ak potrebujete dodržiavať istý režim a chcete tráviť menej času za obrazovkami, v najnovších smartfónoch si môžete napríklad nastaviť čas strávený za obrazovkou vášho zariadenia. Rovnako tak odporúčam nastaviť si tzv. nočný režim displeja, ktorý vám po zotmení automaticky posunie farby displeja do teplejšej časti farebného spektra, čo ovplyvní aj cirkadiánne rytmy takže sa vám bude v noci lepšie zaspávať,“ vysvetľuje Martin Slaný zo siete očných optík FOKUS.

Výraznou pomocou pri práci s obrazovkami vyžarujúcimi modré svetlo sú aj okuliare s filtrom modrého svetla. Jedná sa o svetlo s nízkou vlnovou dĺžkou a vysokou energiou. Jeho prítomnosť sama o sebe škodlivá nie je (dokonca aj slnečné svetlo obsahuje modrú zložku, a práve tá spôsobuje, že je obloha modrá). Problém je v tom, ako dlho sa mu vystavujeme a z akej vzdialenosti. Vyžarujú ho totiž obrazovky digitálnych zariadení, do ktorých hľadíme dlhý čas a zo značnej blízkosti.

Celé to funguje jednoducho. Modrý filter v okuliaroch neprepúšťa škodlivé modré svetlo a prepustí len to, ktoré je pre naše zdravie a zdravie našich očí prospešné. Pokiaľ zatiaľ nepotrebujete dioptrie, môžete si práve na prácu s elektronikou zaobstarať okuliare s modrým filtrom, ale bez dioptrií, tzv. planky,“ vysvetľuje Martin Slaný a uzatvára: „Ak by ste okuliare s filtrom nepoužívali, takmer všetko modré svetlo prechádza vašou rohovkou a šošovkou a dostáva sa na sietnicu. Keď ho vaše oči absorbujú, dochádza k potlačeniu tvorby melatonínu – hormónu, kvôli ktorému sa po západe slnka cítime ospalí. To je výhodné behom dňa (nie sme toľko unavení), večer to však môže mať zásadný dopad na kvalitu odpočinku.

V prípade, že vám jednoduché tipy a triky či nastavenia displeja v rámci zariadení nepomáha a pociťujete bolesti hlavy, bolesti, únavu či pálenie očí, je dobré absolvovať vyšetrenie očí. To si môžete naplánovať online alebo v jednej z desiatok optík FOKUS na www.fokusoptika.sk, v optikách vám zároveň odborníci pomôžu zmerať zrak a vybrať tie správne okuliare s filtrom proti modrému svetlu.

22 komentárov

  • Komentár oral anabolic steroids %PM, %24 %955 %2025 %21:%mar napísal oral anabolic steroids

    This train is all about enhancing energy and stability in your decrease body.
    When you raise your hips right into a bridge position and then "march" your legs alternatively, it works on your
    glutes, hamstrings, and core. If you're utilizing
    the mistaken exercises with bad knees, then leg
    workouts may be hassle.
    I’m not kidding after I say that I struggled to
    realize even a little little bit of muscle mass.
    You may not notice it, but Ahead and Reverse Lunges work the knee and hip in several ways.
    Knee ache is likely considered one of the most
    typical issues folks have when doing lunges. Increase the load again however provided that you'll have the ability to and feel snug doing so.

    Made up of five muscle tissue, their job is to stabilise your thighs and pelvis,
    whereas allowing for movement, extension and rotation. Adductors are
    massively important for squatting, sprinting and moving
    in a number of instructions. So if you’re a beginner,
    begin with two, and as you get extra advanced, then enhance it to 3.

    This offers your muscular tissues enough time to recuperate between sessions whereas ensuring constant progress.

    Let’s start this effective leg workout for knee pain with some squats, but not just any squats.
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    Workouts for leg day that focus on building explosive power corresponding to Weighted Jump
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    one quads dominant and one hamstring dominant, work properly for many individuals and is a
    preferred choice in plenty of applications. The riskiest are those
    that contain holding a weight throughout your upper back, e.g.,
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    underneath a heavy weight, which might trigger severe injury.

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    This challenging dumbbell leg train is unbelievable for the glutes, quads, calves, and hamstrings.

    By performing this elevated split squat, you reap the benefits of engaging extra
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    And yes, we stated "strong lower body." But it’s fairly frequent for many fitness lovers to avoid leg
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    Step-ups mimic on a regular basis movements like climbing stairs
    or walking uphill, making them a practical train that interprets to real-world power and stability.
    Probabilities are, you’ve gone to the gym and seen rows of leg press machines.
    This popular piece of equipment is a favorite for a
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    Leg workouts with dumbbells offer the benefit of security with efficiency for
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  • Komentár Hilda %AM, %21 %252 %2025 %05:%mar napísal Hilda

    Instead of catching the barbell overhead together with your legs in 1 / 4 squat,
    you will descend right into a full squat as you catch the bar.

    Once the barbell is secured overhead, you'll then rise up from the
    squat place, urgent the bar overhead as you rise.
    This approach requires both strength and coordination, making it a
    challenging however effective movement for improving total health and energy.
    After the power snatch goes on heavier high-rep exercises, another option is to modify to a cut up snatch.
    A cut up snatch requires extra skill than only a energy snatch but is easier for most individuals than transferring to the complete squat snatch on high-rep workouts.
    One draw back to this motion is the necessity to reset the toes after every rep.
    The length and subsequent depth of the split will improve as the burden nears an athlete’s 1RM.
    "Break Up snatches contain receiving the weight together with your legs in a split or lunge position, as opposed to in a partial or full squat," explains Milgram.

    This is ok for folks learning the motion to catch in the quarter squat after
    which experience the motion down into the outlet. One of crucial elements behind educating a development is the goal of getting the athlete to understand the method.

    When somebody first starts beginning and studying
    to grab they have zero clue of what goes into it.
    In Olympic weightlifting and power training there is a normal form of writing planned load.
    Coach give a prescribtion that athletes have to do on the every coaching in specific
    way. Decide up an empty barbell (or a PVC pipe) and apply transferring very little weight with good form.
    "It Is tough, certain, however that's part of what makes it so rewarding."
    Improperly performing a snatch can lead to accidents like pulled muscle tissue and
    hyperextension of joints. Improper kind includes a grip or foot stance that's
    too extensive or too slim, utilizing the mistaken grip, extending the physique
    too early, or not extending the knees and hips collectively.
    "The snatch can also help construct energy, explosiveness, speed, body awareness, and coordination," says Rouse.
    As Wickham says, "Just think about how highly effective your legs should be and how shortly you have to transfer to get a heavy barbell overhead." A method that’s slower than the earlier method could be bringing the
    burden down to the grasp position (around the
    hip area), then bringing it to the deck.
    If you aren’t going to wear lifting footwear, you may have different choices.
    Chuck Taylors are a favourite of many CrossFitters, and some trail-running footwear with harder soles (like Salomons) also present a great
    possibility for a workout that entails working and
    snatching. If you may have a small window of time within the fitness center however you wish to get higher at each workout routines, prioritize the squat.
    The squat trains the identical muscular tissues you use in the deadlift,
    however by way of a higher range of motion, in accordance with Samuel.

    In workouts which have gentle snatches (relative to strength), it might be finest
    to employ muscle snatches. In the muscle snatch you still create pace on the bar, however as an alternative of re-dipping as you'll in an influence or squat snatch, your knees and hips
    don't close once more after extension. The muscle snatch requires
    extra upper-body strength and is usually done as a skill-transfer train for weightlifters.
    The other key aspect of high-rep muscle
    snatches is rarely transferring your toes away from their beginning place, often hip width.

    The barbell snatch is amongst the most technically advanced weight-training movements and one of many two lifts in Olympic
    weightlifting competitions. The squat snatch is good for maximizing the hundreds dealt
    with. Many track-and-field and ball-sports athletes
    practice the ability snatch and energy clear exclusively to
    give consideration to the pulling phases without as much concern for
    the receiving section. Traditionally, the snatch has been used in very low-repetition units.
    CrossFit, although, has seen great profit from high-repetition snatch (and
    clean) sets.
    "The movement requires a ton of stability, which implies your core has to go into overdrive to keep you balanced and managed as you move the weight," says Wickham.

    Beyond simply strengthening your abs, a robust core is crucial for good posture
    and steadiness, and can help you lift, throw, kick, punt, and
    punch far and powerfully. A snatch, or squat snatch, is a
    technical, advanced weightlifting motion. It’s a transfer well-liked with CrossFit and Olympic athletes.
    From the hip, decrease the bar all the means down to where it will
    be hovering over the ground as if plates had been on it.

    A. Start with the loaded barbell on the bottom with toes beneath the bar, about hips-width apart,
    toes slightly turned out. As A Outcome Of the snatch is a power transfer, it
    is easy to lose your balance and injure your self.

    Be sure to use the right quantity of weight in your health
    degree to avoid falling and getting hurt.

    "The actuality is, each of these movements sit atop of the exercise food chain as moves that problem multiple massive decrease physique muscle groups, and let us transfer major weight." The Olympic lifts prepare athletes to effectively activate more muscle
    fibers more rapidly than by way of any other modality of training.
    The explosiveness that results from this coaching is of vital
    necessity to each sport. Working Towards the snatch teaches one to
    apply force to muscle teams in correct sequence — i.e., from the
    middle of the physique to its extremities (core to extremity).
    Studying this vital technical lesson benefits all athletes who have to impart
    pressure to a different individual or object, as is usually required in almost all sports activities.
    E. When the bell passes chest top and right elbow is pointed straight towards the ceiling,
    rotate hand so palm/inner wrist faces ahead, punching the
    weight toward the ceiling.
    Make sure to maintain the burden light sufficient to do the
    actions accurately. Not many people will be
    able to go unbroken on the rings and blaze via
    snatches rapidly, however you will get the higher time when you
    suppose forward and start slowly. I would undoubtedly
    split up the units of 9 and 7 muscle ups and do solely singles on squat snatches.
    F) Land in a quarter-squat (feet shoudler-width aside, toes slightly turned out), while shifting rapidly into an overhead squat
    place underneath the bar. And the snatch doesn't simply work your midline muscles a
    teensy weensy bit—it works them A LOT, says Wickham.
    When doing high-rep snatches, we also see completely different options for attacking
    these workouts, which generally feature hundreds lighter than a person’s 1RM snatch.

    They additionally closely load your spine, which can enhance your bone density.

    But, that also means they're closely fatiguing on the central nervous system—meaning you'll need to plan sufficient
    relaxation time in between coaching sets. Here Is why both workouts deserve
    a slot in your weekly routine—and when you need
    to begin to emphasize one over the opposite. These gold normal lifts are essential to a well-rounded routine.
    This Is tips on how to prioritize when you do not have time for both.

    Be Part Of our mailing list to start receiving unique content material only our publication members
    have entry to. Studying technique is greatest realized
    from a top-down perspective. A second factor that can be done, and slightly ridiculous, is to put two fists over the lifter’s head and see if the bar
    sits there over the pinnacle. Starting the squat from the bottom (from safety pins or blocks) emphasizes the
    concentric part and helps to power via sticking factors. Learn extra
    about our group here, and extra about how we test right here.

    We are receiving the barbell high in the power snatch position (as against the squat snatch), and then training a deeper receiving position with the overhead
    squat. The goal is for the talents of this complex to transfer over to the later minutes
    in this exercise. The snatch could be very in contrast to exercises such
    because the hamstring curl and biceps curl, which only work one muscle group at a time.
    "The snatch is a fancy and dynamic movement that engages almost each muscle group in the body," says Rebecca Rouse,
    a USA weightlifter, kettlebell coach, and NCSF-certified private trainer.
    Yep, tossing a weight from the bottom up over your head engages your hamstrings,
    quads, glutes, calves, traps, shoulders, triceps, forearms, biceps,
    and full core. The hanging squat snatch involves beginning with the barbell above the knees rather than on the
    ground. From this place, you perform the same explosive
    pull, catch, and squat movements as in a regular squat snatch.


    At the 2009 Rocky Mountain Regional Skip Miller organized, he programmed a workout that required a
    total of seven,000 lb. To be snatched overhead, whereas the loads had been left up to the athletes.

    And muscle-snatched the load to a hard-earned victory. He muscle-snatched roughly 50 of
    the reps earlier than having to change to a extra traditional
    power snatch. The muscle-snatch rep was a lot quicker than the
    standard power-snatch rep. The traditional method to the Oly lifts is to make use of these actions to develop explosive velocity and energy.
    They have actually been proven effective for that objective,
    and the best results are found with shorter sets.

    "It's tough, sure, but that is part of what makes it so rewarding," he adds.

    The kettlebell snatch requires more talent than the dumbbell snatch.
    As A End Result Of of the position of the deal with whenever you punch the weight towards
    the sky, you must do it just so in order to avoid the bell crashing down onto your wrist.
    It might take somewhat trial and error to determine out the timing, says Wickham.


    "A certified coach will know tips on how to train, cue, and correct any motion's imperfections," she explains.
    As I already mentioned, Amanda is tough benchmark WOD,
    and not many individuals can end it unbroken in respectable time.
    Don’t worry and scale it as it's going to benefit you more than ending it with time over 15 minutes.
    Normally, you'll find a way to keep one of many actions you might be
    higher as RXd and scale solely the one you might be weak
    at. This is your last set, and it's only 5 reps however don’t go unbroken if you are not 100 percent positive
    you can do it.
    This article is not about teaching somebody tips on how to do the raise.

    It’s about giving the athlete who needs to be more environment friendly various things to think about with regards to attacking a high-rep snatch workout.
    If your aim is to improve athleticism, the deadlift strengthens muscular tissues
    that work within the hip extension mechanics that power movements
    like working and jumping.
    Remaining stationary will permit you to cycle the reps in the fastest
    method potential. Depending on the rep scheme and load, the muscle snatch is also one of the taxing methods to do this movement.
    Making An Attempt to take care of a fast tempo for very high-rep workouts won't be worth the toll it takes in your system for later reps.
    For quickest turnover of reps with gentle hundreds, bringing the burden straight down from an overhead position is the quickest way.


    It’s a two-part motion that might be done quick or with a break on the
    hang position, which allows for some restoration, each mentally and physically.
    This is possibly the most typical technique for decrease weight snatches at high reps.
    A Lot consideration has been paid to the strategy
    of the snatch, and good method is essential to maximizing the masses moved in any given set.
    If the barbell strikes outdoors the base of support, the body’s positioning is suboptimal and
    lifts are often missed.
    The big factor is educating athletes to understand the change of path, coordinating the end
    into the catch. Some coaches spend ten to fifteen minutes
    doing this. A third way to set up the grip, especially with massive teams of
    athletes, is to simply inform them to place their ring fingers on the rings after which regulate from there.
    Alter the velocity of your reps to emphasize totally different phases of the lift.

    For example, a tempo means four seconds down,
    no pause, and 1 second up. By alternating between strength,
    power, and technique drills, this program guarantees
    to invigorate your squat sport. Once you're
    a grasp snatcher and able to try out the split snatch, watch this CrossFit split snatch video.


    F) Continue to press the weight upwards until arm is completely straight
    and locked out over right shoulder. As Soon As you feel confident with
    the motion, try this 15 minute CrossFit companion exercise, which features
    the dumbbell snatch. D) As the dumbbell passes hip-height, explosively extend hips whereas shrugging shoulder
    up in course of ear. C) Straighten legs while pulling the
    dumbbell off the bottom, up alongside your body.

    E) When the barbell brushes in opposition to mid-thighs, drive hips ahead (allowing ft to
    go away the ground). The snatch—which may be done with a barbell, dumbbell, or kettlebell—involves flinging weight from the bottom all the way overhead in one fluid movement.
    Once the load is locked out overhead and the athlete is standing, she or
    he has a quantity of choices in returning the burden to the
    bottom for the following rep.
    The athlete stands to finish the motion and resets the
    ft earlier than starting the subsequent pull. I have additionally
    seen this carried out where the ft start in a touchdown position (wider) and keep in that position throughout.
    In a exercise like Isabel, athletes will both squat-snatch or power-snatch the burden, although a couple of of our stronger athletes can really muscle-snatch one hundred thirty five lb.

    The energy snatch begins with a similar start to the squat snatch, but
    as a substitute of receiving the weight in a squat place, you receive it in a partial squat
    together with your feet at shoulder width. We do not quantify the depth
    of this squat because it varies for each athlete and in accordance with load.
    Coach Mike Burgener likes to say a squat snatch is just a missed energy snatch.
    The squat snatch is a variation of the snatch exercise that entails catching the barbell
    in the bottom of a squat position.
    If an athlete could be very sturdy with this movement this
    can be unnecessarily time consuming. In the video under, each Josh
    Everett and Adrian Bozman transfer their ft to the
    landing place, then reset them to the pulling place whereas the bar is overhead.
    For establishing your 1RM snatch, the squat snatch is the most environment friendly movement.
    It is arguably additionally some of the technically difficult
    movements we do with a barbell. The stance is about shoulder width,
    with the chest high.
    The weight hits the overhead position and also you basically pull it back to the underside while maintaining your
    grip on the bar all through. This is very demanding as a end result of it allows little time for stress-free or
    breathing. This technique is finest used with a fast transfer like the muscle snatch or power snatch
    with no adjustment of feet. If you will squat snatch or break up snatch, you may need
    to look at some of the different choices. For a high-rep snatch workout with a standard power
    snatch strategy, we end up seeing toes starting at hip width
    and touchdown at shoulder width. The athlete then stands to full extension and resets the toes as (or after)
    he or she brings the weight down. Once the bar is on the bottom,
    the athlete repeats the process.
    From this point, we now progress to the subsequent idea.
    We like to show how the knees transfer but newbies and newbies don’t understand how the knees transfer.
    So one factor we love to do is use isometric muscular action. The idea is to pressure them to pause at positions to turn out to be more conversant
    in proper methods.

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