Slovenian Journal of Low Carb Endurance (2014) 01: 001-009


From Ljubljana to Triglav and back: 202 km one day bike-run-bike Low Carb endurance adventure with self-supported nutrition and enjoyment as main objective

Klemen Rojnik, PhD1


One day 202 km endurance adventure was performed in order to provide test subject with a high dose of enjoyment. This activity consisted of three parts, as the second objective was to reach Slovenia’s highest mountain Triglav (2864 m) and return back to the capital city Ljubljana in one day without motorized aid. Firstly, the test subject cycled 98 km to Pokljuka, then ran 27 km to Triglav and back to Pokljuka, and lastly cycled back 77 km to Ljubljana, while altogether  overcoming over 4.500 m of elevation gain. The whole adventure was performed with self-supported nutrition, meaning the test subject carried all nutrition by himself, not relying on restaurant or grocery store stops. All carried nutrition was low in carbohydrates and consisted of self-made Low Carb energy bars and pork rinds. During this almost 15 hour activity, the test subject burned 8.888 kCal, while ingesting only 3.765 kCal (321 g fat, 109 g protein, 88 g carbohydrates) and approx. 4,7 L of plain water. While only 9 % of this energy came from carbohydrates, often deemed as ideal fuel for all types of exercises, this research clearly showed that such activities could easily be performed without much need for carbohydrates. His post exercise blood glucose value of 4,1 mmol/L and blood ketones value of 1,3 mmol/L clearly indicated, that the test subject relied heavily on fat as far predominant source of fuel during exercise. To conclude, this endurance challenge was a success in all four predetermined objectives. Regarding the first and most important objective of this research, enjoyment of test subject, only visual proof is provided, as the test subject was not able to put numerical approximation to #boljiživot enjoyment.

Keywords Enjoyment, Low Carb, Endurance challenge, Running, Cycling

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Article history – Received 4.Aug.2014, Revised 6.Aug.2014, Accepted 8.Aug.2014
©2014 All rights reserved.
Author affiliations: 1Izobraževalne storitve, Rojnik Klemen s.p. Celovška cesta 87, 1000 Ljubljana, Slovenia, E-mail:

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