Vivien Rolf

I am Vivien Rolf, founder and owner of Team Viking GmbH, which operates the Vikingstore specialist shops in Bern and St. Gallen. Fitness, bodybuilding, nutrition and combat sports have been part of my life for many years – both professionally and personally.

As an IFBB Wellness athlete, I have gained personal experience in several competition categories, from Bikini and Figure to Wellness. This has given me first-hand insight into the demands of structured training, well-planned nutrition and long-term competition preparation.

My professional career began with training in hospitality and gastronomy in Tyrol, Austria. After moving to Switzerland, I worked on the private orthopaedic and surgical ward of a cantonal hospital, where I was responsible for patient catering and hotel services.

With Vikingstore, I turned my passion into my profession. Together with my team, I personally advise athletes on sports nutrition, supplements, boxing gloves and combat sports equipment. Honest recommendations are particularly important to me. We do not simply sell just any product – we help our customers find solutions that suit their training, experience level and personal goals.

I also founded Vivi Soaps, my own brand specialising in handcrafted soaps and selected natural cosmetics.

On the Vikingstore blog, I share practical experience, product expertise and easy-to-understand information about bodybuilding, fitness, sports nutrition, boxing and combat sports. My goal is to help you choose the right products and to explain complex topics clearly, honestly and transparently. 

 

K1 Style: Rules, Techniques & Equipment Explained

K1 Style is a full-contact kickboxing ruleset that combines punches, kicks, low kicks and certain knee strikes. This makes K1 more versatile than kickboxing disciplines without knees, while still being clearly different from Muay Thai.  

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Vikingstore News
Vivien Rolf
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Point Fighting: Rules, Equipment and Differences Explained

Point Fighting is one of the fastest and most technical disciplines in kickboxing. Instead of relying on maximum punching power, fighters need speed, precision, excellent timing and controlled techniques. After a valid scoring technique, the action is stopped briefly before the fight continues – creating the explosive rhythm that makes Point Fighting so distinctive 

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Combat Sports
Vivien Rolf
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Cauliflower Ear in BJJ: Causes, Treatment and Prevention

Cauliflower ears are among the most recognisable signs associated with grappling, wrestling and Brazilian Jiu-Jitsu. Some athletes almost consider them a badge of honour earned through years on the mats. From a medical perspective, however, cauliflower ear is not a sign of exceptional fighting experience. It is a permanent deformation of the ear cartilage. The problem often begins quietly. After training, the ear may feel tender, slightly swollen or unusually soft. Continuing to train and ignoring the injury can result in a permanently thickened and deformed ear. In this guide, we explain how cauliflower ear develops, which warning signs you should take seriously and how you can protect your ears during BJJ.  

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Combat Sports
Vivien Rolf
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Collagen for Athletes: Useful or Just Expensive Protein Powder?

Collagen powder is no longer marketed exclusively as a beauty product. Today, collagen supplements are also promoted to athletes, strength trainees and combat sports enthusiasts – for joints, cartilage, tendons, ligaments, skin and even muscle growth. It almost sounds too good to be true: one powder for half the body. That is exactly why it is worth taking an honest look behind the marketing. Collagen can be an interesting supplement, but it is neither a miracle product nor a replacement for proper training, sufficient protein or a balanced diet.  

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Supplement Guides
Vivien Rolf
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Why Do Some Boxing Gloves Feel Tighter Inside? - Fit, Hand Compartment & Brand Differences

You try on two pairs of boxing gloves with the same OZ rating – yet one feels comfortably snug while your hand has noticeably more room inside the other. Many beginners are surprised by this. After all, 10 OZ, 12 OZ, 14 OZ and 16 OZ are often presented by retailers almost as if they were different glove sizes.

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Combat Sports
Vivien Rolf
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381 views

Why Muay Thai Gloves Are Cut Differently from Boxing Gloves

At first glance, traditional boxing gloves and Muay Thai gloves look very similar. Both are available in sizes such as 10, 12, 14 or 16 oz, both protect your hands and training partners, and both can be used on the heavy bag, pads and during sparring.

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Combat Sports
Vivien Rolf
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Can You Wear Boxing Shoes Outside?

If you’ve just bought a new pair of boxing shoes, sooner or later you might ask yourself: Can I wear boxing shoes outside?

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Combat Sports
Vivien Rolf
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403 views

Why Your Wrist Hurts When Boxing - The Most Common Causes and How to Prevent It

Wrist pain is one of the most common problems experienced by boxers. Beginners are often surprised when their wrists start hurting during training or after hitting the heavy bag. The good news is that, in most cases, the pain is not caused by a serious injury. Poor technique, unsuitable equipment or overtraining are usually the main reasons.  

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Combat Sports
Vivien Rolf
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500 views

Why Many MMA Gyms Don't Accept Complete Beginners

Mixed Martial Arts (MMA) is one of the most demanding combat sports in the world. It combines striking, kicking, wrestling, takedowns and ground fighting into one discipline. Because of this complexity, many MMA gyms prefer new members to have previous experience in another martial art. If you have never trained before, you may be advised to spend several months learning boxing, kickboxing, Muay Thai, wrestling or Brazilian Jiu-Jitsu before joining an MMA class.

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Combat Sports
Vivien Rolf
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339 views

Social Media and Fitness: Motivation or Unrealistic Expectations?

Instagram, TikTok, and YouTube are filled with impressive fitness videos. Muscular physiques, shredded abs, and dramatic transformation photos attract millions of views every day. For many people, they provide the motivation to start working out or stay committed to their fitness goals.  

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Bodybuilding
Vivien Rolf
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227 views
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