Details of our reopening

Rules and Conditions

We will open under strict rules and conditions to allow our customers to exercise safely and to protect our staff. These conditions are based on the agreements and regulations set up by the RIVM. We will rely on your compliance and cooperation regarding the following terms:

·      Working out is not permitted if you have a fever (38 degrees or more) / flu / cold and / or other Corona-related symptoms, or if someone in the family / home has a fever or other Corona symptoms.
·      We ask you to take this very seriously out of respect for the other members and our employees;


·      We ask that upon entering InTension you immediately wash your hands at the sink and then disinfect your hands with the disinfectant that is available;


·      Working out is only allowed by “appointment”. This applies both to our group lessons (indoor & outdoor) and for training in our fitness area inside. You can work out for a maximum of 1 hour and be in the building a maximum of 5 minutes before starting. How to make a reservation is described further down in this newsletter. When you enter InTension someone will check at the door whether you have reserved for your activity (group lesson or fitness);


·      We request that you enter InTension already wearing your workout clothes. If you’re participating in lessons in the InTensity area, group lesson area or Spinning area (if these lessons take place indoors when it rains), you can change your shoes only in that area and leave your other belongings (clothing, bag, etc) there too. If you’re doing a lesson in the Body & Mind room you can place your shoes on the appropriate shoe racks and take your other belongings into the room with you. If you’ve come to train in the Fitness area, you can change your shoes in the locker rooms and possibly use the lockers to store other items. Members who participate in our Outdoor Spinning or Outdoor InTensity classes must register at least 5 minutes before the start of the class on the square in front of InTension, They do not first enter InTension.


·      We ask that you stick to the indicated walking directions, indicated separation areas for waiting and the indicated places in the group lessons;


·      After using fitness equipment or other materials we request that you immediately clean them with the disinfectant spray bottles and towels that we offer to everyone when they come in.
·      The use of showers and saunas is not permitted. Our toilets are accessible. We ask you to clean it immediately after using it with toilet paper and the disinfectant spray bottle.


·      We request that you observe the 1.5 meter distance rule everywhere at InTension and avoid physical contact with others.

Newsletter june

Dear members of InTension,

We are so happy to be able to re-open our doors on July 1st! We can’t wait to welcome you all back to InTension.

We will open on July 1stunder new and strict conditions, based on the advice of the OMT. These new conditions will allow our members to exercise safely and will also protect our staff . We will use the coming weeks to make any final adjustments in the building on the basis of the recommendations that will be made known by the OMT soon.

Group lesson schedule JUNE
Throughout June you will still be able to enjoy our live online lessons and our outdoor lessons.

Click here to check out the recently adjusted group lesson schedule

Due to the unexpected popularity of our outdoor ‘Silent Spinning’ classes, we will add an extra class on Monday evenings at 18:00 (starting June 8th), on Friday mornings at 9:00 (starting June 5th) and on Saturday mornings at 9:00 (starting June 6th). We would like to request that you only book 1 Silent Spinning class per day so that everyone that wants to actually gets the opportunity to join. If there is space is available at the start time of the class you are obviously welcome to participate in a second class. The “Yoga on the beach” class on Saturday morning at Boonoonoonoos will be moved to 9:15 am. In addition, due to the large turnout, we will offer a special sports program at Boonoonoonoos every Sunday morning in June: 9:15 X-Core, 10:00 Aerobics and 11:00 Bootcamp! BE THERE! Reserve a spot for our outdoor classes at

‘Bring a friend’promotion
From now on, our ‘Bring a friend’ promotion will start. As a member of InTension you can introduce someone during our outdoor classes this month. If this family member or friend becomes a member with one of our annual subscriptions, he or she will NOT pay the entrance fee and you will also receive a € 25 discount on the next month. Reserve a spot for your ‘friend’ in one of our outdoor classes by sending an email to

Thank you so much for all the encouraging and heartwarming messages you have all sent us in these difficult times. Your support and understanding means the world to us and has given us the strength to continue on through all of the uncertainty.

We look forward to welcoming you back in June on our online live lesson platform and at our outdoor lessons … AND on July 1st finally re-opening the doors to INTension !!! We will inform you of all the details of the reopening in our June newsletter at the end of this month.

Just hold on one more month!

Stay strong & safe.

Warm regards,

The InTension Team.


We’ve got good news!

Despite not being able to physically open our doors yet, we have been working hard over the past two months to provide our members with alternative options in order to keep moving and stay fit. We have adapted and added various activities:

  • our WODs (workout of the day) on Facebook
  • the online lessons on
  • the live online classes hosted by our own instructors (Yoga, Yin Yoga, X-Core, Power, Fitness & Total Body)
  • Outdoor Fitness Circuit on the square behind InTension
  • Outdoor Youth Fitness and 55 Fit on the square behind InTension
  • Body & Mind classes in the Westbroekpark and on the beach at Boonoonoonoos
  • Every Sunday a SPECIAL workout on the beach at Boonoonoonoos (Bootcamp, Aerobics and X-Core)

Starting this week we will also start offering our unique outdoor “Silent Spinning” classes on the square behind InTension. Every participant will receive a headset on one of our spinning bikes and will hear the instructor’s music and instructions. Would you like to join? These are the lesson times:

  • Mondays, Wednesdays, Fridays, Saturdays & Sundays at 09:30 & 10:00
  • Mondays & Thursdays at 18:30 & 19:00
  • Wednesdays at 18:00, 18:30 & 19:00

These 30 minute classes can be combined with our outdoor fitness classes that are adjacent to this.

Just like for our other outdoor lessons, you can reserve the “Silent Spinning” lessons through our online reservation system at Have you not received your login details yet? Send an e-mail to We will start with the first “Silent Spinning” classes next Wednesday! Make sure to reserve your spinning bike now!

Due to the huge success this past weekend we will be offering an extra Bootcamp lesson on next Sunday 24th of May at Boonoonoonoos at 10:00 (before the SPECIAL Aerobics at 11 am). You can also register for this via our online reservation system.

View our full group lesson schedule here …

We hope to receive more clarity from the government soon about a possible earlier opening date. If we are not allowed to open our doors yet on June 1st you will be able to continue choosing one the three options we provided you the last time. These options allow you to choose how you want to continue supporting InTension. We will of course respect any choice you make:

Option 1: I am a supporter of InTension Health Club and will continue to pay my membership fees. I feel it’s important to continue supporting my club in these difficult times.

Option 2: I am a supporter of InTension Health Club but please debit 50% of my membership fees for the time that InTension is closed.

Option 3: I am a supporter of InTension Health Club but I’m struggling as it is, so I would like to freeze my membership for the time that InTension is closed.

Please note that when choosing option 3 (freeze) you cannot make use of any of the lessons during the time that InTension is closed.

If you don’t inform us of any changes we will assume that your choice regarding your membership is the same as the one that you made for the month of May. If you prefer to choose another option you can send an email to Have fun with all of the other activities for now!

Stay strong & safe!

On behalf of the InTension team

InTension is going outside

Good news! InTension is going outside! Although we are not allowed to open the physical doors to the gym for the time being, starting on Monday, May 11th we will add outdoor lessons to our program as well as continue our online live lessons. These outdoor lessons will be led by our trusted instructors at three different locations near InTension. This will be done within the frameworks that the government has drawn up on the basis of the RIVM guidelines. This way, InTension is a little step closer to its members! 

Click here to check out our lesson schedule


Starting on Monday May 11th, we will offer outdoor Fitness classes and various outdoor Body & Mind classes at three different locations near InTension: on the big square out in front of InTension, in the Westbroekpark and at Beachclub Boonoonoonoos. This is the schedule for our outdoor lessons: nog toevoegen

Participation in our outdoor lessons is only possible by appointment through our online reservation system on our website Do you not yet have login details? Send an email to info@in-tension.nlIf the morning outdoor lessons cannot take place due to the weather conditions, the instructor will notify everyone on Facebook around 8 a.m. and around 5 p.m. regarding the evening outdoor lessons. So follow our Facebook page at to check whether or not the lesson will go ahead that morning or evening.

It is important that you stay at home in case of any health complaints like a fever, flu, cold and / or other Corona-related symptoms. We kindly request you avoid physical contact with the instructor and other participants and keep a distance of at least 1.5 meters. Bringing your own towel and water is mandatory. There is no changing room and toilet visits are unfortunately not possible.

  • Outdoor Fitness: in the square

On the big square in front of InTension we will host 6 outdoor Fitness classes in the mornings from Monday to Sunday from 9 am to noon and 6 outdoor Fitness classes in the evenings from Monday to Thursday from 6 pm to 9 pm. This outdoor Fitness class is a 30-minute intensive Total Body workout based on functional exercises. It’s similar to our InTensity lesson. The classes are open to everyone since every participant can train at his or her own level. For our 55+ group, we’ll organize a custom 55+ outdoor Fitness class on Tuesdays and Thursdays in the last half hour from 11:00 am to 11:45 am.

We use the ‘come & go’ system in the flow of these lessons: make sure you are present on the square just before the start of the lesson and leave the square immediately after cleaning the materials so that the next group can start right away.

  • Outdoor Youth Fitness: in the square

We will also offer a Youth Fitness class on the big square in front of InTension 3 times a week on Monday and Friday from 17:15 – 18:00 pm and wednesday from 16:00 – 16:45 pm.

  • Outdoor Body & Mind classes: at the park / on the beach

Our outdoor Body & Mind classes “at the park” will take place during the week in the Westbroekpark. We’ll meet at the bridge at the entrance of the Westbroekpark on the side of Korfbalvereniging KVS. Five minutes before the start of the lesson the group will enter the park together and search for a quiet and suitable place together with the instructor.

The outdoor Yoga class “on the beach” is on Saturday morning and takes place on the beach at Beachclub Boonoonoonoos. We’ll meet on the stairs in front of Boonoonoonoos. The instructor will take the group to where the lesson will take place five minutes before the start.

You are required to bring your own yoga mat to participate in our outdoor Body & Mind classes.

  • Outdoor SPECIALS: on the beach

On Sundays in May we will have three outdoor SPECIALS at 11 am:

May 17th Bootcamp by Steffan

May 24th Aerobics by Heleen

May 31st X-Core by Lorenzo

We’ll meet on the stairs in front of Boonoonoonoos. The instructor will take the group to where the lesson will take place five minutes before the start of the lesson. We will provide the X-Core tubes for the lesson of May 31st. If you have your own X-Core tube then please bring that instead.


Considering the outdoor lessons actually taking place is dependent on the weather conditions we will continue to offer the various online live lessons we have so far over the coming period. Are you not receiving the daily invitations to the online lessons and would you like to? Send an email to

You can also view all our online lessons  that we offer from now on. To do this click on “Yes, I want to participate” in the invitation email of the lesson you want to join and you can view it again.


As a result of our compensation proposal (see, if you opted for option 3 (to pause your membership for the time being) then unfortunately you cannot participate in our outdoor lessons and online live lesson. If you would like to participate in these lessons you are free to go back to option 1 (continue to pay in full) or option 2 (50% discount). You can let us know by sending an email to

We are so happy that we will see some of you starting next Monday, out in the open air!

We hope you enjoy our outdoor lessons and online live lessons!


Healthy regards,

The InTension team

COMPETITION: Who has the most original training session?

We are very curious to see all the creative ways in which you are staying fit and training! We challenge you to let us know by posting a video of this on FACEBOOK. Make sure to tag InTension. On April 10th we will judge who came up with the most original workout and this person will be rewarded with an athletic prize! Are you up for the challenge?

Get inspired by this video of our members Lindsay and Sabrina. Thank you for your submission ladies!

We hope to see you all back at InTension as soon as possible


Gezondheidstip van de maand: STAY STRONG In these trying times it is particularly challenging to maintain a healthy lifestyle. Make sure to continue eating a variety of healthy products and drink plenty of water and tea. Keep your metabolism high and exercise regularly. In order to be of service to you outside the club we are offering the use of the 24/7 online sports service, FitSnacks.TV. With this service you can be engaged in sports, health and lifestyle at any time of the day. In addition, InTension fitness trainers will post a WOD every day on the InTension Facebook page. WOD stands for “Workout of the day” and consists of a series of exercises that can be performed in different ways. From 6th of April we offer LIVE Online lessons by our own instructors. By offering you these options InTension hopes to keep its members fit and healthy. STAY STRONG!

Fitness appointments on hold

Fitness afspraken on holdThe fitness appointments, scheduled this month,  of course will be cancelled. Once we can open our doors again, you can re-appointment your fitness appointment at our reception.

InTension goes LIVE

Intension gaat LIVEFrom Monday, April 6th InTension will offer LIVE online lessons that will be taught by our trusted instructors! On your laptop, phone or computer, you can follow several active workouts and yoga classes twice a day 7 days a week. This keeps you fit, relaxed and healthy! Check your mailbox this weekend when we will announce the roster and also how you can sign up for these workouts.

Corona news for all our members!

Corona news for all our members!

In addition to offering online courses, InTension Health Club has spent the past two weeks working on the question of what to do about member fees for the coming time. After considering all the government advice and consulting legal specialists we have come to a decision. In this newsflash we would like to inform you about what InTension Health Club has decided to do regarding the membership fees.

Since the situation is complex for both members and InTension Health Club, we will first briefly explain our viewpoint:

  • It is unclear whether the consumer (member) has the right to cancel and / or the right to any compensation.


  • It is also unclear whether a sports center is entitled to compensation measures from the government in case of Force Majeur. Even in this case only employee wages are partly reimburse (which is only a small part of all costs that our sports center has).  The financial loss will be considerable for us with all the other challenges at hand.


  • What is obvious for both parties however is that this is an incredibly unfortunate situation that we all hope passes as soon as possible.


  • It is also understandable that members are reacting very differently to the situation. The reactions vary from a heartwarming “I’ll keep paying my fees, we support you!” to ” please terminate the membership due to the temporary closure”. We sympathize with every response because we cannot and do not want to make assumptions about anyone’s financial situation. But we appreciate your understanding and loyalty to the sports center because we are looking forward to starting back up again with all of you by our side!

We want to be guided by reason and transparency, and based on the issues raised above we have therefore decided to apply a 50% discount on all membership fees from April 1st 2020 and will continue to apply this discount until the first month that we open. This means that from April 1st 2020 all the direct debits will be half of the normal amount. We will then deposit the money on your club card. This can then be used for drinks, smoothies, sandwiches, solarium etc when we are open again. You can also use it to upgrade your membership (temporarily) to “fitness plus and group lessons”, which is € 10 more per month. In other words:

Starting April 1st you will not pay anything for your sportmembership until we open our doors again! We will transfer the amount that we debit (= 50 % of your regular monthly fee) on your club card. You can use this amount to buy refreshments etc at our bar/ reception when we are open again.

NB: Among the members who have already unsubscribed by 30/04/20 or who choose to cancel the membership (with a one full calendar month of notice) in the next period, however, will be collected the full monthly fee.

We hope these measures will encourage as few members as possible to terminate their membership and remain loyal to our gym! We need each other to survive in this situation, so we are very grateful for this. As a token of our appreciation, we are offering you ‘FitSnacks.TV’ for free. This service provides you with the opportunity to remain engaged in sports, health and lifestyle at any time of the day, wherever you are. We also add daily workouts to our facebook page, the so-called ‘Work Out of the Day’ (WOD). Check it out!

We are all in this exceptional situation together and (fortunately) no one has ever experienced this before. Together we will overcome this.  In the meantime we appreciate your patience, understanding and loyalty. We miss you and look forward to seeing you again in your and our club. This too shall pass!

Wishing you all strength over the coming period. Take care of yourself and each other!

Take care of your body. It’s the only place you have to live. (Jim Rohn.)

Warm regards,

Simon & Damaris
According the InTension Team

InTension Health Club Closed due to Coronavirus

As a result of the Corona crisis the Dutch government has decided that all sports and fitness clubs must close immediately. InTension Health Club also feels a responsibility to protect its members and employees. The most important thing over the coming time is that we all take care of ourselves and our loved ones.
These government measures apply to all areas of the Netherlands until April 6th.

We understand and respect that these decisions and measures are inconvenient for everyone involved. As an alternative we are offering you ‘Fitsnacks’ for free: 

This link offers you various training options so that you can stay fit from the comfort and safety of your own home.

You will receive the free login code for ‘Fitsnacks’ as soon as possible.

We will keep you informed of any further developments as they happen.

Warm regards,
The team at InTension