RAIDLIGHT’S GILET RESPONSIV 8L PACK REVIEW

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Niandi Carmont recently ran the Compressport Trail Menorca, an 85km race on the island of Menorca, Spain. Knowing the race would be semi self-sufficient, the need for a comfortable hydration system would be required. RaidLight stepped in and provided the new RAIDLIGHT GILET RESPONSIV 8L vest so that it could be tested in a ‘real’ situation. On first looks it would be easy to think that this pack is female specific, apparently no. It also comes with a hint of blue for those gentlemen who are not in touch with their feminine side.

RaidLight say:

The Responsiv 8L is a combination of bag/vest. Lightweight and ergonomic.

The Responsiv 8L race vest allows you to carry essentials and hydrate with ease, with the bonus of being ultra light at only 160 grams!

The bag has recently been awarded the prestigious Janus Design Award (2015), awarded by the Institute of French Design

 

Hydration is always an issue when you compete in a self-sufficient or semi self-sufficient trail race or even when training. There are multiple ways of carrying energy drinks and water but what most of us look for is a system that is:

  • Hassle-free – no fumbling around, fidgeting or groping
  • Provides easy access – you can hydrate easily on tricky technical sections of a course or when fatigued in the latter stages of a long trail race
  • Is quick and efficient – you can refill quickly when passing through the feed stations, wasting as little time and energy as possible
  • Is comfortable – no chafing, no bouncing, no sloshing, no leaking
  • Allows you to manage your water supply efficiently and gauge how much water/energy drink remains until the next feed station

Raidlight’s new Gilet Responsiv 8L ticks all the above boxes for me. It’s a great little pack.

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What I like:

  • It comes in 2 sizes: Small/Medium & Large/Extra Large. I used the smaller version as it’s probably more suited to the female body type and lighter runners. It also comes in grey/ pink! For the men, grey/ blue.

gilet-responsiv-8l

  • The vest is equipped with 2 micrometric adjustment systems; I have seen this before on a pair of TNF Shoes called the Boa and a TNF pack. This system provides for an even more “customized” fit. These are located on either side just under the arm openings. So there is no messing around with dangling straps and buckles to tighten. Basically, as you remove items from the pack (food, water and so on) you can adjust the pack in minute detail so that it remains close to the body.

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  • It weighs just 160g and that is ultra-light!
  • Designed to be used with RaidLight’s new soft flasks (optional extra) which come in 2 sizes either 350ml or 600ml. So depending on how far apart the feed stations are on a course and what your own personal hydration needs are, you can use either one or the other or a combination of both. The RaidLight soft flasks are also equipped with straws which make drinking on the go extremely practical. The flasks fit comfortably into the 2 front pockets and are extremely easy to remove and slip back in. I found the straws a little distracting as they came close to my face, however, on the shoulder straps, two access holes are available should you use a bladder (the pipe would feed through these on the left or right). I found that I could push the soft flask straws in here. Perfect!

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  • The pack is made of a breathable flat-seamed mesh (thermal adhesive), which doesn’t chafe and please note ladies it is very pleasant to wear over a t-shirt, a sleeveless tank or even a crop top.
  • The stability is reinforced with two pectoral buckles on the front of the pack

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  • The stash pocket on the back can be used to carry a bladder (Velcro strap supplied) or mandatory race kit. I used it to carry a survival blanket, a mobile phone, a lightweight wind stopper and some extra food

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  • There are two tiny pockets underneath the main soft flask pockets; they can be used for lip balm, sunscreen, gels, tissue paper and gels/ food. For me, this is where the pack fails and needs greater improvement. I personally found I had too little room for ‘on the go’ nutrition and I used a lightweight fuel belt to store additional energy.

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I would recommend using the Gilet Responsiv 8L for any self-sufficient race or training run. It’s ideal for short outing and longer runs but I do think the lack of food storage impacts on its use for very long self-sufficient runs. If you are racing with adequate feed stations and the opportunity to replenish liquid and food, then it’s a great pack. For me it was ideal on the Trail Menorca Costa Sud, an 85km trail race with 7 feed stations, relatively hot weather (36°C) and a course which is technical in parts but without any major difficulties. Importantly ladies, this pack is one of the most comfortable I have tried. I don’t have big boobs but as you will know, anything that doesn’t sit comfortable is a real problem. The Raidlight was great in this area and gents; you have nothing to worry about. If it works for us ladies, it will work for you too!

CONCLUSION

This is a neat little product by RaidLight that works for men and ladies. Importantly, this pack is really comfortable for ladies and the option of two different sizes (S/M, L/XL) means that you can get a pack that fits you! This can also be fine tuned with the micrometric adjustment systems. The downside is on the go access to food/ gels as storage is minimal.

The vest will be available in June 2015.

Go to RaidLIght HERE to find out more

RUNNING BEYOND – A new book announcement

Cover

Multiple meetings, trips backwards and forwards to London and I am pleased to say that I can now announce that I will have a new book available in late (September tbc) 2016.

It has been a long term dream to find the backing of a publisher and I am pleased to say that Aurum Press Ltd (Here) have had the trust to allow me to produce a book on a sport I love through photography and words.

An added bonus is that Kilian Jornet has agreed to write the foreword.

A work in progress, I anticipate some long days and nights as I evolve this project. I hope through imagery and words it will be an inspiration to those who look at it and read it.

Grubby pages with repeated use, I’d like to see multiple ‘post it’ notes marking races for future ‘bucket lists’ and most of all I hope it will be a book that allows you to dream.

Wish me luck as I put this together. Many thanks for the continued support and most importantly, thanks to Aurum Press Ltd, Kilian Jornet and all the wonderful races and people around the world who have afforded me the opportunity to make a dream a reality.

Ian

*Please note the cover is just an illustration. I anticipate a new cover for the actual book.

 

Recent Printed Publications for iancorless.com

TCC Lead Page

The first few months of 2015 have been very rewarding and I have had several articles and features printed worldwide in a series of top ranking magazines.

From the rainforests of Costa Rica, to heat of the Sahara. Anton Krupicka looking broken at Transgrancanaria, Joe Grant between a rock and a hard place at The Coastal Challenge and Sir Ranulph Fiennes beating the heat at the Marathon des Sables.

Here are the magazines with links

Like The Wind HERE

Runners World HERE

Trail Running Magazine HERE

Competitor HERE

Outdoor Fitness HERE

Here is a selection of the printed articles. All my tear sheets can be viewed HERE

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MDS 2015 Darren Outoor Fitness UTLD Runners World 2015 TCC 2015 Trail Running Mag MDS Sir Ranulph Fiennes captured_spread

Beat The Heat (Part Two) – Marc Laithwaite

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Exercise in the heat can place a lot of strain upon your body, if you’re used to cooler climates. For this reason, many elite athletes will spend time acclimatising to the higher temperature. Acclimatisation can require up to 14 days, so what if you’re an amateur athlete traveling abroad for an endurance event, who can’t afford to travel 3 weeks before the event?

This is part 2 of our ‘exercise in the heat’ blog series. Last week we explained why exercise in the heat is such a problem (you can read by clicking the coaching articles link at the top of the page and then scrolling down through past blogs). In this week’s blog, I’ll explain how you can acclimatise before you travel and highlight the key physiological changes that take place, as a consequence of acclimatisation.

It’s a bit cold up North, so acclimatising might be difficult!!

Okay, if you live in the North of the UK and you’re traveling abroad to race, then you might be struggling to understand how you can possibly acclimatise. I use the term ‘North of UK’ as we all know that in the South of the UK, the temperature rarely drops below 18c. I’ve never traveled further South than Birmingham, but I hear they wear shorts and flip-flops pretty much year round.

In simple terms, to acclimatise before traveling, you need to make yourself hot and encourage sweating when you train. There are really easy ways to do this:

  1. Wear extra clothing
  2. Run on a treadmill or cycle indoors and turn up the heat
  3. Spend time in a sauna or steam room on a daily basis

I’d recommend you start doing this from 2 weeks out, but you need to do it consistently. Ideally it should be on a daily basis. There’s plenty of evidence to suggest that the above methods can help acclimatise you before travelling to warmer climates.

General guidelines:

  1. If you’re exercising outdoors, wearing extra clothing will lead to a higher sweat rate, so make sure you hydrate during the session. The same can be said for indoor running or cycling, make sure you are hydrating throughout.
  2. You should expect it to affect performance to some extent. If you use a power meter when cycling or you run at specific speeds on the treadmill, you should expect your power of speed to be a little lower than normal. If you’re temperature is higher, attempting to maintain the same intensity as usual could result in you being exhausted by the finish of the session!
  3. Try to progress the sessions in terms of exposure and intensity. For example, if you ride indoors, gradually turn up the temperature over a 7 day period and gradually build up the volume and intensity of the session. Don’t simply crank up the heat on day 1 and ride the full session as you’d expect to in cooler temperatures.
  4. The same rule applies for the sauna and steam room. Start with 10-15 minutes and gradually build your time to 30-45 minutes. Take a drink into the sauna or steam room with you to ensure you are hydrating adequately.

What are the physiological changes that take place?

There are a couple of key changes that take place when you are forced to sweat at a high rate:

The first is an expansion of plasma volume, this refers to an increase in the amount of blood plasma. Last week we explained that blood is made up of plasma (the fluid part) and cells. As you sweat, you lose plasma, which then thickens the blood. Part of the acclimatisation process in as increase in plasma, which means your blood is thinner. By increasing your plasma volume, this also means that you have more blood in general. The amount of cells doesn’t change, but the fluid component is increased, thereby increasing the overall blood volume. This is handy when your blood has to supply both muscles and skin, as discussed last week.

The second key change is a reduction in salt loss. Early in the acclimatisation process, your sweat contains a high amount of sodium. As the acclimatisation process progresses, your body retains sodium by reducing the amount lost in sweat. In simple terms, your sweat becomes less salty. If you’re acclimatising over a 2 week period, lick your skin every day and see if you can taste the change. It’s not socially acceptable to lick someone else’s skin.

As stated earlier, for these 2 changes to occur, you simply need to encourage a high sweat rate when training. The more you sweat, the more these changes will occur. Be sensible, reduce the intensity of the training session and gradually build up heat exposure over the 2 week period.

Until then, stay cool.

About Marc:

Sports Science lecturer for 10 years at St Helens HE College.

2004 established The Endurance Coach LTD sports science and coaching business. Worked with British Cycling as physiology support 2008-2008. Previous Triathlon England Regional Academy Head Coach, North West.

In 2006 established Epic Events Management LTD. Now one of the largest event companies in the NW, organising a range of triathlon, swimming and cycling events. EPIC EVENTS also encompasses Montane Trail 26 and Petzl Night Runner events.

In 2010 established Montane Lakeland 50 & 100 LTD. This has now become the UKs leading ultra distance trail running event.

In 2010 established The Endurance Store triathlon, trail running and open water swimming store. Based in Appley Bridge, Wigan, we are the North West’s community store, organising and supporting local athletes and local events.

Check out the endurance store HERE

Endurance Store Logo

COMPRESSPORT TRAIL MENORCA CAMI DE CAVALLS 2015 – Day One

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The fourth edition of the COMPRESSPORT TRAIL MENORCA CAMI DE CAVALLS 2015 started on Friday May 15th at 0800 in the town of Ciutadella.

A weekend of racing and on Friday it was the 185km (0800 and 1200 start) and the 100km event that got underway.

Menorca literally threw everything at the runners in regard to weather – cloud, sun, wind, rain, thunderstorms and the occasional flash of lightening.

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One thing remained constant though, the beauty of the surroundings and the stunning coastline.

As I write, the 185km is still taking place and the 85km event started at 0800 Saturday May 16th.

Cami de Cavalls map

Casey Morgan from the UK won the 100km event in a new course record – 8:57 (tbc) and we will update with a ladies result asap.

We will update with a series of reports and times as more information becomes available. For now, please enjoy a selection of images (many more to follow) from day one of COMPRESSPORT TRAIL MENORCA CAMI DE CAVALLS 2015. 

Website – http://www.trailmenorca.com

Beat The Heat ( Part One) – Marc Laithwaite

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This week we’re starting a series of articles titled ‘environmental physiology’. We’re going to open with a 2 part series relating to exercise in the heat (I say 2 parts, but who knows what could happen by next week). Following that, we’ll take a look at altitude training and potential benefits.

But before we go on, why not catch up on our seven part series of posts on RACE DAY NUTRITION HERE

Too Hot? Call The Police & Fireman…

Exercise in the heat can place a lot of strain upon your body, if you’re used to cooler climates. For this reason, many elite athletes will spend time acclimatising to the higher temperature. Acclimatisation can require up to 14 days, so what if you’re an amateur athlete travelling abroad for an endurance event, who can’t afford to travel 3 weeks before the event? Well this blog is quite timely for me, as I’m off to Lanzarote in less than 4 weeks for the Ironman triathlon and potentially, it could be very hot. There’s probably quite a few people reading this blog who are traveling abroad this year to take part in triathlon or running events in hot places. The purpose of this blog is to explain simple ways, which you can acclimate your body beforehand and explain the physiological changes, which take place to improve your performance.

Too hot? You Make A Dragon Want To Retire Man…

In a nutshell, when you exercise in hot climates, your core temperature rises and your performance suffers. If your core temperature rises too much, it could potentially be lethal, so your brain is pretty quick to try and stop that happening, by persuading you to stop!

How do we reduce core temperature?

There 2 main ways, the first is ‘convection’ and the second is ‘sweat evaporation’.

Convection

Think about a car radiator, it’s positioned right at the front of the car as that’s where the wind hits it when you’re driving. Heat is generated in the engine, this in turn heats the water which is then pumped to the radiator. The wind hits the radiator, cools the water and the cool water goes back into the engine to pick up more heat. This cycle continues, to keep removing heat from the engine, which is why it’s important to keep the fluid topped up or your car will overheat! The human body works the same way, heat is generated in the engine and your blood then picks up the heat. The blood is pumped to the coolest part of the body (the skin), where the wind hits it and cools the blood. It then returns back into the engine to pick up more heat and the cycle continues.

If the wind is blowing against your skin whilst you exercise, convection may well be enough to keep you cool and maintain a normal body temperature. It’s easier to do this when cycling, compared to running, as your speed is generally higher, so the wind chill is greater. Runners will notice that treadmill running leads to more sweating than running outside as the air temperature is generally warmer, but also you’re not moving, so there’s no air flow past the skin and therefore no wind chill or convection. The same can be said about indoor cycling or using a turbo trainer, especially if you don’t have a fan blowing.

Let’s use the treadmill running or turbo cycling scenarios as an example. If there’s no air flow past your skin to cool the blood, then in effect, you pump hot blood to the skin surface, it doesn’t get cooled, so the hot blood goes back into the engine / core. That’s a sure fire way to overheat. This is the same as leaving your car engine running on a hot day, whilst stuck in a traffic jam. If you’re not moving, there’s no wind hitting the radiator, so convection cooling can’t happen.

Sweating

Sweating is based on ‘evaporation’. Water from your body cells makes it’s way to the skin and as the hot blood arrives, the heat is passed from the blood into the water droplets (leaving the blood cool). The heated water on your skin, evaporates into the air like water from a boiling pan and takes the heat with it. If you’re running on a treadmill and there’s no convection, you need another method of getting rid of heat, so the sweating and evaporation will kick in.

It’s important to recognise that ‘evaporation’ removes the heat, so any sweat on your skin, clothing or floor, serves no purpose other than to lead to dehydration. 

Convection and sweating don’t compliment each other too well

If you’re racing in hot weather, convection isn’t enough so you’ll also sweat to keep your temperature down. As you sweat, you lose fluid from your body and this leads to a drop in blood plasma (plasma is the fluid/water component of blood). The problem is that you need a lot of blood for convection to work well. When you’re exercising, blood is pumped to the exercising muscles and what’s left is pumped to the vital organs. So what happens when you then need to pump extra blood to the skin to cool down? Do you reduce blood flow to the muscles and vital organs? It sounds like a great idea to keep you cool, but where is this extra blood coming from? As if that wasn’t bad enough, you’re now sweating and the amount of blood you have is dropping. So not only do you have to supply muscles, organs and the skin, you’ve got less and less blood available as sweating continues.

Blood is made up of plasma (fluid) and cells (red/white/platelets). When you sweat, you lose plasma, but not cells. This means that the total amount of blood is reduced and it also gets thicker (same number of cells but less fluid). 

What does this mean in terms of performance?

As you’ve probably guessed already, this isn’t good for performance. Heart rate is generally higher for any level of exercise. This is due to the fact that you’re trying to pump blood to all areas of your body and your total blood volume is dropping. Your cardiovascular system is therefore working overtime, trying to match the demand with a struggling supply. Due to fluid and salt losses, your body becomes dehydrated and cells cannot function correctly. We’ve mentioned previously that salt is required for transporting fluid throughout the body and as high amount of salt can be lost in sweating, this mechanism is impaired.

Something of great importance, which is less frequently discussed, is the change in substrate utilisation. Whilst the exact mechanism is still under question, it’s pretty clear that you use more carbohydrates and therefore empty your glycogen stores more quickly when exercising in the heat. The simple explanation is that that there’s a lack of ‘spare blood’ going to the muscles, due to the fact it’s going to the skin for cooling. Fat metabolism requires more oxygen than carbohydrate metabolism so there’s a switch from fat to carbohydrate. This may also be explained by a switch from ‘slow twitch’ to ‘fast twitch’ fibres, which use less oxygen.

All in all, this isn’t looking too good. We’ve got an ever-decreasing blood volume, which is being pulled in several different directions. We’ve got decreasing salt levels and an onset of dehydration. We’ve got a heart rate which is significantly higher than it should be for the intensity we’re exercising at and to cap it all off, we’re running out of carbohydrates at a faster rate than normal.

Don’t worry help is at hand. Next week we’ll discuss how acclimatisation helps you to deal with the issues and explain the physiological changes responsible.

Until then, stay cool.

– Marc

About Marc:

Sports Science lecturer for 10 years at St Helens HE College.

2004 established The Endurance Coach LTD sports science and coaching business. Worked with British Cycling as physiology support 2008-2008. Previous Triathlon England Regional Academy Head Coach, North West.

In 2006 established Epic Events Management LTD. Now one of the largest event companies in the NW, organising a range of triathlon, swimming and cycling events. EPIC EVENTS also encompasses Montane Trail 26 and Petzl Night Runner events.

In 2010 established Montane Lakeland 50 & 100 LTD. This has now become the UKs leading ultra distance trail running event.

In 2010 established The Endurance Store triathlon, trail running and open water swimming store. Based in Appley Bridge, Wigan, we are the North West’s community store, organising and supporting local athletes and local events.

Check out the endurance store HERE

Endurance Store Logo

COMPRESSPORT TRAIL MENORCA CAMI DE CAVALLS 2015 PREVIEW

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Following on from Transvulcania, attention this coming weekend turns to Zegama-Aizkorri and Menorca for the COMPRESSPORT TRAIL MENORCA CAMI DE CAVALLS 2015. 

Cami de Cavalls map

The Menorca Cami De Cavalls takes place on 15, 16 and 17th May on the beautiful island of Menorca. A series of races are offered that provide all those involved to see the beauty of this majestic island.

The island is known for its collection of megalithic stone monuments: navetes, taules and talaiots, which speak of a very early prehistoric human activity. Some of the earliest culture on Menorca was influenced by other Mediterranean cultures, including the Greek Minoans of ancient Crete . For example the use of inverted plastered timber columns at Knossos is thought to have influenced the population of Menorca imitating this practice. The location of Menorca in the middle of the western Mediterranean was a staging point for different cultures since prehistoric times. This Balearic Island has a mix of colonial and local architecture. Menorca’s cuisine is dominated by the Mediterranean diet, which is known to be very healthy. Whilst many of the locals have adopted modern attitudes they still uphold certain old traditions.

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As a small island, large sporting events are seldom seen. However, in recent years, a couple of sport events have managed to gather hundreds of participants; Extreme Man Menorca triathlon and the single-staged ultra marathon race Trail Menorca Cami de Cavalls.

 

The TMCDC embraces the small island and utilizes the trails to full affect offering a series of races (five in total) that allow runners to participate in a race of 32km or a traverse of the whole island in 185km.

 

TMCDC 185km

Trail Menorca Cami de Cavalls (TMCdC) is an ultra distance of 185,3 km and a positive slope of 2,863 m where each runner will discover their limits and enjoy an idyllic landscape on this island in the Mediterranean Sea, you will find beaches, cliffs, and incredible views.

 

TMCN 100km

The Trail Costa Nord (TMCN) explores the North of Menorca over a distance of 100 km. A positive incline of 1796m, runners will discover precious places in Menorca, beautiful trails and incredible views.

 

TMCS 85km

In the Trail Menorca Costa Sud (TMCS) you will visit beaches of white sand lapped by turquoise water and enjoy ravines and forests.

 

TCS 55km

The Trail Costa Nord (TMCN) provides an opportunity to discover Menorca’s wilder side; high cliffs, constantly changing terrain and beaches that leave you speechless.

 

TCN 32km

32 km Trekking Costa Nord (TCN) runs through the beautiful scenery of the Parc Natural de s’Albufera des Grau.

 

The first edition of the race was held in May 2012 with 270 participants. In recent years the amount of participants has been continuously increasing with 287 in 2013 and 646 in 2014. The 2015 edition will once again se the race reach a new level with a strong participation from respected trail, ultra and mountain runners such as:

 

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ELISABET BARNES – 1st Marathon des Sables 2015

EMMA ROCA – results here

VANESSA RUIZ – Winner Trail Menorca CDC 2014

JAVIER CASTILLO– 3rd Utratrail Collserola 2014

JOEL JALLE CASADEMONT – 2nd Yukon Arctic Ultra 2105, 1st Goldsteig Projekt 500 2014, 5th spine race 2014

EUGENI ROSELLO – winner Spine race 2013, winner VCUF 2014/2013

SERGI COTS – Winner VCUF 2014 (made same finish time with Eugeni)- Third Ultra trail Catalan Cup 2014

IGNASI RIURO – Winner (team) and world record at Oxfam Trail Walker 2015

RAMON GARCIA – 4rt Trail Menorca CDC 2014 – Winner Tabernes Ultratrail 2015

JORGE IVAN CANO BERRIO

DANIEL ALFONSO ZUBIETA

VIVIAN ANDREA ALVAREZ FORERO

AYDE RAIDA SOTO QUISPE

BARBARA KOCH RAMIREZ 

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Course records are as follows:

 

TCDCZigor Iturrieta 21:10:04 and Laia Diez Fontanet 27:16:33

TCNXavier Garcia 10:12:01 and Marta Comas 11:35:11

TCS Joan Noguera 8:03:31 and Brigitte Eggerling 9:53:28

TCN Paco Arnau 2:34:22 and Maria Fiol 3:18:30

TCSJuan Jose Mateos 5:17:36 and Daniela Carolina Moreno 6:42:37

 

 

The racing starts on Friday at 0800 for the TMCDC and TMCN – you can see a full race program HERE

 

I will be working on the race capturing images and stories so please follow on this website, via Twitter @talkultra on Facebook at facebook.com/iancorlessphotography and on Instagram @iancorlessphotography

 

Race website HERE

Race Day Nutrition (Part Seven) – Marc Laithwaite

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Last week we introduced specific products used during endurance events and how they can fulfil your requirements in terms of nutrition intake.

There are 3 common sports products used during endurance racing:

  1. Drinks powders
  2. Gels
  3. Bars

This week, we’ll check out bars and gels.

What’s in them?

Unsurprisingly, gels tend to contain maltodextrin and glucose, similar to the drinks. In fact, gels are simply condensed energy drinks. They were originally designed to be carried on events where you could access only water, as a source of energy. The thickness of the gel will dictate how much energy they contain. Some gels are very thick and sticky and these contain more energy than the ones which are a thinner, more watery solution. This is based upon the simple principles we discussed a couple of weeks ago, relating to hypo, iso and hypertonic solutions.

As an example, a 41g power gel original contains approximately 27g of carbohydrate. Remember the 60g rule? That means 2 of these gels per hour would be pretty close to target intake. The remaining 14g of the gel is fluid (41g – 27g = 14g) so we can calculate the gel thickness as follows:

Total weight = 41g
Carbohydrate content = 27g
27/41 = 0.66, Therefore this gel is a 66% solution (27 is 66% of 41)

The purpose of that calculation is simply to highlight that gels are extremely ‘hypertonic’, remember that isotonic is a 7% solution. Being hypertonic is not a problem, the more hypertonic the more energy it provides, but it does mean that you need to take fluid with them.

In past blogs we stated that you should aim for no more than 10% solutions, so that means 270ml of water drank with 27g of carbohydrate will be correct, 270 / 27 = 10. It’s important to do the calculation based on the 27g of carbohydrate in the gel, not the 41g total weight of the gel. Technically if you drink 270ml the solution will actually be less that 10% as there’s already 14g of fluid in the gel as stated above. As a practical guide think about a 500ml drinks bottle generally used for cycling, it’s half of one of those with every power gel.

What about Isogels

There are ISOGELS on the market, SIS and High5 make popular versions. By adding more fluid to the gel and reducing the carbohydrate content they can reduce the thickness of the gel solution.

The first thing of note is that they contain less carbohydrate, so you’d need to take more of them every hour. They contain in the region of 22-24g of carbohydrate per gel, so that means you’d be taking almost 3 per hour to get your energy, rather than 2 power gels. That’s a lot of gels to carry if you’re racing long distances.

But ISOGELS are isotonic, so you don’t need water, right?

HIGH5 Isogel
Total weight = 66g
Carbohydrate content = 24g
24/66 = 0.36, Therefore this gel is a 36% solution (24 is 36% of 66)

SIS GO Isogel
Total weight = 66g
Carbohydrate content = 22g
22/66 = 0.33, Therefore this gel is a 33% solution (22 is 33% of 66)

So we said above and in previous blogs that isotonic solutions are 7%. The solutions for the ISOGELS above are 33% and 36%, this is not isotonic, it’s hypertonic. I may be missing something here, so I did phone High5 and ask. They couldn’t answer the question but stated that ‘they were more isotonic than other gels’. I’m not sure that is technically true, as none of them are anywhere near 7%. That’s a bit like me saying I’m tall and when questioned about by lack of height, I reply by stating ‘I’m more tall than Ste Hilton’. Whilst that may be true, it doesn’t make me tall…

Key points:

1. You DO need to drink water with ISO gels
2. If you don’t know Ste, that joke is completely lost

If there’s 24g of carbohydrate in a 66g gel, then you need to take 240ml of water for a 10% solution (240ml / 24g = 10%). However, there is already 42g of fluid in there (66g gel – 24g carbohydrate = 42g fluid). Based on this, 200ml would be sufficient, that’s still more than a third of a 500ml drinks bottle.

What about energy bars?

Bars are an alternative source of carbohydrate. They generally contains things like oats, rice, wheat etc with added sugar syrups such as glucose or fructose. In terms of ‘solutions’ a gel is solid food, so it needs mixing with a significant amount of water to digest and absorb effectively.

As an example, a powerbar energize bar (others are available!!) weighs in as follows:

Bar weight = 55g
Carbohydrate = 39g
Fat = 2g
Protein = 6g

In terms of carbohydrate content, you’d need 1.5 bars per hour to get your 60g intake. If you add up the content weight 39g + 2g + 6g = 47g. We stated that the bar weighed 55g, so there is some fluid in there also plus some other little bits to make the weight up to 55g. If you drank a full 500ml bottle of water with every bar, that would give you just less than 9% solution which is ideal (47/500 = 0.9). That means a full 750ml bottle and 1.5 powerbars per hour would be pretty much on target (remember all bars are different, these calculations are for powerbar energize).

Salt intake

We discussed sweating and hydration last week, which included salt intake. As a recap, salt and sodium are 2 different things. Salt is 40% sodium and 60% chloride. You need to know this as some products give ‘salt’ content and others give ‘sodium’ content. Remember also from last week we said that you are likely to sweat up to 1g of sodium per hour (1000mg). There’s multiple thoughts on salt replacement, regarding how much and whether you need it. I’m not going to go into depth on the matter because this is meant to be a simple and easy to read blog. If it’s warm and you sweat a fair bit, aim for 500-1000mg SODIUM per hour. If you take a bit too much, you’ll just sweat it out anyhow so don’t overly panic.

Let’s presume that you are aiming to take all of your energy by using sports gels or bars. So remember, our targets are 60g of carbohydrate per hour and 500-1000mg of sodium per hour, presuming its warm and you sweat. Here are some options:

SIS GO Isotonic Gel

Includes 22 grams of carbohydrate
Sodium = negligible

High5 Isogel

Includes 24 grams of carbohydrate
Sodium = negligible

Powergel

Includes 27g of carbohydrate
Sodium = 205mg
2-3 Powergels per hour would give you 410-615mg of sodium, we stated that 500mg was a starting target.

Powerbar Energize

Includes 39g of carbohydrate
Sodium = 192mg
1.5 Powerbar Energize per hour as suggested above, would give you 288mg of sodium, half of that provided by intake of 2-3 Powerbar gels per hour. They really don’t make this easy!!

Some key points:

  1. The amount of carbohydrate in gels and bars varies widely
  2. You need to drink water with all gels and bars for correct absorption
  3. Isotonic gels don’t exist (unless I’ve missed something)
  4. Sodium content varies widely in bars and gels and is often not included

I hope that basic overview helps you to practically apply what you’ve learned over recent weeks, feel free to call into the store and we can talk you through it before your big day.

– Marc

About Marc:

Sports Science lecturer for 10 years at St Helens HE College.

2004 established The Endurance Coach LTD sports science and coaching business. Worked with British Cycling as physiology support 2008-2008. Previous Triathlon England Regional Academy Head Coach, North West.

In 2006 established Epic Events Management LTD. Now one of the largest event companies in the NW, organising a range of triathlon, swimming and cycling events. EPIC EVENTS also encompasses Montane Trail 26 and Petzl Night Runner events.

In 2010 established Montane Lakeland 50 & 100 LTD. This has now become the UKs leading ultra distance trail running event.

In 2010 established The Endurance Store triathlon, trail running and open water swimming store. Based in Appley Bridge, Wigan, we are the North West’s community store, organising and supporting local athletes and local events.

Check out the endurance store HERE

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Great Lakeland 3 Day #GL3D – Day Three

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The tents shook, lifted off the ground and were drenched with repeated gusty storms during our ‘interesting’ night in Little Langdale. I was surprised to see everyone still smiling on the final morning. But hey, that’s the GL3D. It’s such a friendly even and as one runner said, ‘You wouldn’t want good weather all the time, it would just be boring!’

The morning remained ‘claggy’ and the wind on the tops was relentless. I have to say, waiting around in the early hours for runners to arrive was a real test of nerves and my hands ability to function with a windchill of a reported -10. But I was greeted with continuous smiles, plenty of thumbs up and a repeated, ‘You must be mad being up here in this weather and this time off the day?’

However, the sun did arrive and as the runners descend off the tops and made their journey back to Ravenglass through the valleys of Wynrose Pass, all of them were rewarded with some beautiful typical Lakeland scenery and stunning weather.

What rain?

What wind?

It wasn’t too bad….

Cold, no it didn’t really get that cold.

Funny how we forget and block things out!

Now then, where is the cider?

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Great Lakeland 3 Day #GL3D – Day One

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What a day… the 2015 GL3D started in glorious sunshine but in true Lakeland condition, conditions deteriorated pretty quickly.

Strong winds, rain and snow made every race tough for the respective categories: Elite, A, B, C and walkers. At times the temperatures were a reported -10 on the tops in the wind

Here is a selection of images to summarise the day. A full set of stage and overall results will be uploaded in due course.

 

All images ©iancorless.com – all rights reserved Images are available to purchase at iancorless.photoshelter.com