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Description
Gyronetics Dumbellset 30 kg Gietijzer (25 mm)Deze 30 kg halterset (25 mm!) is ideaal om spierkracht te ontwikkelen. Je kunt de halterset aanpassen aan je eigen niveau, de set wordt namelijk geleverd met 8 schijven van 2,5 kg, 4 schijven van 1,25 kg en 2 halterstangen. De schijven worden stevig vastgezet met de metalen schroefringen, die het totaalgewicht van 30 kg completeren. Te licht of te zwaar? Een bekend fenomeen in iedere sportschool is het volgende. Fanatieke, vaak nog wat onervaren
Deze 30 kg halterset (25 mm!) is ideaal om spierkracht te ontwikkelen. Je kunt de halterset aanpassen aan je eigen niveau, de set wordt namelijk geleverd met 8 schijven van 2,5 kg, 4 schijven van 1,25 kg en 2 halterstangen. De schijven worden stevig vastgezet met de metalen schroefringen, die het totaalgewicht van 30 kg completeren.
Te licht of te zwaar?
Een bekend fenomeen in iedere sportschool is het volgende. Fanatieke, vaak nog wat onervaren sportschoolbezoekers voeren oefeningen - zoals 'biceps curls' - uit met veel te zware gewichten. Hun hele lijf schudt van voren naar achteren om de dumbell te kunnen liften. Hiermee wordt aan het doel van de oefening: het isoleren van één spiergroep, volledig voorbij gegaan. Rugblessures liggen dan op de loer! Als je bedenkt dat 's werelds meest beroemde bodybuilder, Arnold Schwarzenegger, een groot deel van zijn biceps training uitvoerde met gewichten van 8, 10, 12 en 14 kg, zal je beseffen dat 15 kg per arm voor de meeste mensen voorlopig ruim voldoende gewicht is en eerder te veel dan te weinig. Mocht je toch zwaarder willen trainen, dan kun je uiteraard voor een appel en een ei een paar extra gewichtsschijven aanschaffen, die je moeiteloos op de halterstangen schuift.
Diverse oefeningen
Met dumbells zijn talloze oefeningen mogelijk, die je in staat stellen om vrijwel iedere spiergroep te trainen. Om een paar voorbeelden te noemen: biceps curls en triceps extensions voor je armen, dumbell presses, upright rows en lateral side raises voor je schouders of dumbell squats voor je benen.
Dumbells vs machines
De belangrijkste reden waarom veel professionele sporters kiezen voor het trainen met losse gewichten, zoals dumbells, is de eindeloze variatie en het feit dat het lichaam niet 'geholpen' wordt door een machine, die de bewegingsvrijheid beperkt. Bij het trainen op machines blijven de spieraanhechtingen bovendien achter in de ontwikkeling.
Met de halterset kun je efficiënt trainen, zodat je spieren zich symmetrisch ontwikkelen.
NB Deze Gyronetics halterset bestaat uit halterschijven met opening van circa 25 mm en halterstangen met doorsnee 25 mm. Deze maat wijkt af van het reguliere assortiment van Gorilla Sports dat bestaat uit 31 mm / 50 mm schijven en stangen.
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4.8 ★★★★★
Based on 27 reviews
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Product Reviews
★★★★★ 5
Worked well near the equator
Style: SPF 50
I bought this product because I was going to be in the field for a month, outside, every day, all day, in Tanzania at high altitude. A severe sunburn would be hard to treat in the remote area we were in, but also I am very careful about protecting my skin from aging. I had to have mineral based sunscreen because as a whitewater kayaker I know it’s the only truly water resistant kind and it was going to be sweaty. And since I knew I was going to be putting it on every day, and we didn’t have running water in the field (bucket showers only) I didn’t want it to feel gross. (I really wanted to try the spray but I didn’t want to put anything pressurized in my luggage.) And I had already discovered the Coola face sunscreen (30spf version) which had impressed me with how silky smooth and not greasy it is. Now this IS greasier because it is a higher SPF. BUT I think this product is as good as you’re going to get with the protection you’re getting. Like I said, I’m a white water tiger, so I have used a LOT of mineral sunscreens. This was hands down the most comfortable one I’ve used. And it was effective. I didn’t burn once—only time I did burn was when I forgot to put it on one day toward the end of the trip, when we were out for just a couple hours—and I got the first 2nd degree burn I’ve ever had in my life. That was what this stuff had protected me from, all day every day, the entire trip. I did tan a little but I think that was mostly from the few times I was not covered during short bouts or it was cloudy. For my face I used the Coola 50spf face product.
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Reviewed in the United States on August 7, 2022
★★★★★ 5
Love this stuff!
Style: SPF 50
I use this every day and I love how it is frangrance free and creamy. I have a very fair complexion and I will say it leaves a slight white cast but it doesn’t bother me because it almost makes my fairness more creamy looking. My skin texture has improved since wearing it daily and no allergies from it. I highly recommend especially if you have fairer skin otherwise it may leave a cast .
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Reviewed in the United States on February 19, 2023
★★★★★ 5
Excellent mineral sunscreen with minimal white cast.
Style: SPF 50
This is one of the healthier sunscreens I’ve found so far. You’re not likely going to find a mineral sunscreen that doesn’t leave some white cast. However, this one rubs in pretty good with minimal cast.
You can dab on and rub in fairly easily… as long as you don’t use too much the white cast should be minimal. I am not sure how well this would work on darker skin tones. My arms are a medium skin tone… my legs are more of a light-medium tone.
I prefer mineral sunscreens, and this is the best one I found so far and compatible to Supergoop mineral play. If you liked that one, you would likely enjoy this Coola one too.
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Reviewed in the United States on January 25, 2025
★★★★★ 1
Would not recommend
Style: SPF 50
I literally never write reviews but felt compelled to write one for this sunscreen because I was very caught off guard by all the positive reviews. This sunscreen leaves the most insane white sheen that never soaks in and gets on EVERYTHING. I put this on and drove to the beach and had sunscreen on my car seat, the steering wheel, the center console, the door, EVERYWHERE!
It took forever to clean up and was such a hassle and that was after having let the sunscreen soak into my skin for an hour.
Also the sunscreen is really thick and difficult to spread and makes you look ghostly white. Plus, the sunscreen has a really odd odor that reminded me of play dough? That might not be a negative thing for everyone but I found it unpleasant.
There are definitely better mineral sunscreens out there. For the price I expected a much better product.
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Reviewed in the United States on June 11, 2025
★★★★★ 3
Sticky and white
Style: SPF 50
The sunscreen has a very sticky and thick texture. It will keep you from getting sunburnt, but it will also leave you with a white color.
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Reviewed in the United States on July 22, 2024