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Endurance Fitness Blood Test

Endurance Fitness Blood Test


A blood test for endurance athletes of every level who want to optimise their performance and recovery. Includes tests for anaemia, hormones, muscle health and inflammation.
Blood sample 50 biomarkers included Results estimated in 3 working days from sample receipt at lab
Endurance Fitness Blood Test
Endurance Fitness Blood Test
Endurance Fitness Blood Test
Endurance Fitness Blood Test

Is it for you?

Do you participate in endurance sports and want to be in peak condition for race day? Are you coping with your training load or are you finding injury and long recovery times are holding you back? Are you concerned about the effect of your training on your hormone levels? If you want a thorough health check which focuses on the biomarkers that can impact your sports performance, then this is the right test for you.

What's included?

Biomarker profiles

  • Hormones
  • Proteins
  • Liver Health
  • Cholesterol Status
  • Kidney Health
  • Diabetes
  • Iron Status
  • Thyroid Hormones
  • Clotting Status
  • Red Blood Cells
  • White Blood Cells
  • Adrenal Hormones
  • Vitamins
  • Minerals
  • Muscle Health
  • Inflammation

Hormones (3 Biomarkers)

Proteins (3 Biomarkers)

Liver Health (4 Biomarkers)

Cholesterol Status (6 Biomarkers)

Kidney Health (3 Biomarkers)

Diabetes (1 Biomarker)

Iron Status (4 Biomarkers)

Thyroid Hormones (2 Biomarkers)

Clotting Status (2 Biomarkers)

Red Blood Cells (7 Biomarkers)

White Blood Cells (6 Biomarkers)

Adrenal Hormones (2 Biomarkers)

Vitamins (3 Biomarkers)

Minerals (2 Biomarkers)

Muscle Health (1 Biomarker)

Inflammation (1 Biomarker)

Special instructions

Please take your sample as soon as possible after waking. CRP levels can be affected by infection, inflammation, and illness. If you are taking this test because you have recently developed symptoms or they are worsening you should discuss these with your doctor. We suggest taking your test when any short-term change in your symptoms have settled. Fasting is optional for this test. Eating fatty foods might affect the results of a small number of blood tests so we may advise a retest when you are fasted. If you are interested in your triglyceride or LDL levels, then we do recommend fasting. Take this test between days 2 and 5 of your period. It can be taken at any time if you are not having periods. Your result could be affected by corticosteroid medication (e.g. prednisolone). Ask your doctor whether you should stop before testing. HRT and the contraceptive pill can affect the results of this test, taking the test during a break from these will give more accurate results. Do not take biotin supplements for 2 days prior to this test. If you are taking prescribed biotin you should discuss this with your doctor. Avoid taking a finger-prick sample from a finger used to handle hormone-gels or hormone-pessaries in the past 4 weeks. Avoid heavy exercise and eating meat-rich meals for 48 hours before your test. You should take this test before you take any vitamin or mineral supplements. Do not take vitamin B12 for two weeks prior to this test. If your B12 is prescribed ask your doctor whether you should stop before testing.

From the expert

This advanced profile for endurance athletes covers all the bases, looking at markers which can help identify overtraining and injury as well as those that could cause lack of energy and motivation. This test is for runners, triathletes and cyclists as well as anyone undertaking an endurance challenge which requires them to be on top of their game. Use this test to establish your pre-training baseline and then track changes as your training load increases.

One of the most important tests for endurance athletes is a full blood count which looks in detail at red blood cells and their ability to transport oxygen around the body. This profile includes a full blood count as well as tests for inflammation and muscle damage, cholesterol for cardiovascular risk, hormones which can be affected by training such as testosterone, oestradiol and cortisol as well as markers for fatigue such as a full iron profile and vitamin B12.

Although this test can be taken as a snap-shot on a single day, it is designed to be tracked over time so that you can learn about what works for you.

Dr Sam Rodgers MBBS, MRCGP
Chief Medical Officer

Why take this test?

  • You want to optimise your race performance
  • You want to avoid injury and maximise recovery
  • You want a detailed look at hormones and nutrition that affect performance
  • You want a comprehensive test for general health

Laboratories you can trust

Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our UKAS accredited partner laboratories.

Dr Sam Rodgers - Chief Medical Officer

Expert advice with your results

Get trusted advice and comments from one of our doctors based on your results.

Your personal health centre

Your personal health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help
Questions? Let us help

Questions? Let us help

Our customer care team is on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.


Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.