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Ellie Salthouse

Ellie Salthouse

IRONMAN 70.3® Boulder

8th June, 2024USABoulder1st, FPRO

Ellie's headline numbers

~84g
Carb per hour
Recommended 90g/h+
~597ml
Fluid per hour
Recommended 250-750ml/h
~527mg
Sodium per litre
Recommended 400-800mg/L
~7.3mg
Caffeine per kg
Recommended 3-6mg/kg

Ellie's strategy

Fueling

Carbohydrate is the main fuel you burn when racing. Failing to fuel properly is a leading cause of underperformance in longer races.
Carb-rich meal

T - 1-4hrs: Ate a carb rich meal (Low in fat & fibre)

Pre-fueled

T - 15mins: Took in a final dose of carb

Carb per hour
Recommended 90g/h+
~84g
Ellie's Energy Rating6/10

"My stomach didn’t feel good at all during the race. I’m not sure if it was something in the water or whether I was still battling the stomach bug I had the week before, but I never felt hungry, just uncomfortable."

Our thoughts

Ellie has been trialling a slightly higher carb intake during her key race-specific workouts after feeling quite hungry in some of her early-season 70.3® races. In Boulder, she planned to take a PF 30 Gel *in addition* to her usual PF 30 Caffeine Gel in the final ~30 minutes pre-race. However, after a slightly more aggressive carb-load, she felt very full so decided to skip the additional gel. Ellie’s bike nutrition has been iterated over several months of trial-and-error, but both this time and during 70.3® St George, her stomach felt off and she struggled to take her gels. It may be helpful to increase the carb content of her BTA ‘fuel bottle’, by adding a couple of scoops of PF Carb Only Drink Mix instead of using additional gels, and see if this improves her stomach comfort when racing full gas.

Hydration

Taking on board an appropriate amount of fluid and sodium is essential to maintaining blood volume and supporting the cardiovascular effort needed to perform on race day.

Whilst the absolute amount of sodium and fluid consumed per hour is important, it’s critical to consider these in relation to each other. This is known as 'relative sodium concentration' and it’s expressed in milligrams per litre (mg/L). How much sodium you’re taking in per litre of fluid is more important than the absolute amount taken in per hour.

Ellie655mg/L

Ellie has been Sweat Tested to dial in her hydration plan

Sweat sodium concentration (mg/L) is largely genetically determined and remains relatively stable. Knowing how salty your sweat is enables you to replace a good proportion of your sweat losses, which can range from 200-2,000mg/L.

Whilst Ellie's losses are on the low side, getting her hydration strategy right is still important if she wants to perform at her best.

Learn more
Pre-loaded electrolytes

T - 60mins: Drank ~500ml of strong electrolyte drink

Fluid per hour
Recommended 250-750ml/h
~597ml
Sodium per litre
Recommended 400-800mg/L
~527mg
Ellie's Hydration Rating7/10

"I wasn’t thirsty at all, but I made sure to drink plenty from the stations on the run as the temperatures were creeping up."

Our thoughts

As someone with a relatively low sweat sodium concentration *and* sweat rate, Ellie doesn’t have to focus too hard on her hydration during ~4 hour races in moderate temperatures like in Boulder. However, because the race took place at ~1,650m (5,430ft) above sea level, Ellie consulted the Sports Science Team at PF&H about the different hydration requirements when racing at altitude. By increasing her day-to-day fluid intake slightly, and monitoring her sweat losses closely, Ellie crushed her preparation and arrived at the start line confident she knew what her body needed in these conditions. Her fluid and relative sodium intake were likely spot on *during* the race, and as she didn’t report any hydration-related problems, she can be confident in this part of her strategy.

Caffeine

Beyond the Three Levers of Performance (carb, sodium and fluid), caffeine is one of only a few substances that is proven to improve performance for most endurance athletes as it can help stave off mental and physical fatigue.

Pre-caffeinated

T - 0-4hrs: Had a final hit of caffeine

Caffeine per kg
Recommended 3-6mg/kg
~7.3mg
Our thoughts

Ellie increased her relative caffeine intake slightly compared to some of her previous races over this distance by drinking several cups of cola on the run. However, as described in most of her previous case studies, Ellie likely has a high tolerance for caffeine, and has never suffered any ill effects, so consuming a dose slightly above the scientific recommendations is an appropriate strategy for her.

How Ellie hit her numbers

Here's everything that Ellie ate and drank on the day...

Before race (>30 mins)
  • 1 x Slice of toast with Nutella and banana
  • 1 x Banana
  • 1 x Small coffee
Pre-race (<30 mins)
Run

Final thoughts

Ellie's Satisfaction Rating6/10

I’m stoked to take the win for the third time here in Boulder, but the race wasn’t all plain sailing. The stomach issues on the bike were really confusing, so I’m going to look into making some changes to prevent them. I was eight minutes down off the bike so it was a nail biting finish to take the win in the end, but plenty to work on for next time.

Ellie

To retain her title at Boulder 70.3®, Ellie closed an eight minute gap through her impressive run, even after struggling with a ‘dodgy stomach’ for most of the bike. Going forward, she plans to adjust her gel strategy slightly, which may involve changing the source of her fuel slightly to include more liquid carbs via PF Carb Only Drink Mix.

PF&H

Ellie's full stats

Overall
344g total carb84g per hour
2,450ml total fluid597ml per hour
1,292mg total sodium315mg per hour
527mgSodium per litre
423mg total caffeine7.3mg per kg
Bike and Run
Bike
Run

Data Confidence

We rate each of our case studies from 1-5 based on the level of accuracy, and our confidence in the data.

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There is an adequate level of accuracy in the data collected and the numbers reported. The athlete manages to recall what they ate and drank including most specifics (brands flavours quantities plausible estimations of volumes). However there are estimations made within the data which affect the overall confidence level in the data reported.

Ellie's recent case studies

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