What tests should physically active people do?

Sport is health – both physical and mental. The World Health Organization has continually called for us to move every day, and to make physical activity an integral part of our weekly schedule. Everyone can choose the area which they feel most comfortable in. However, not everyone realises the importance of doing medical tests to assess what exercises to introduce and what condition our body is in. Where to begin? Here’s a bunch of tips.

Why would an active person need a tests package?

There’s a number of reasons. First – it is good to know your current health parameters, so as not to burden the body if it is not ready for the challenges of training. Moreover, test results will allow you to consciously plan your training routine and work to make up for the deficiencies. The tests will also help answer some questions: why the worse mood? Why doesn’t exercise produce the desired results? Which workouts should be avoided and which will be perfectly safe? In the tests performed, it is worth considering the functioning of the entire body, so we examine both the nervous system (through MRI or CT scans), digestive, respiratory and endocrine systems. Beforehand, it is best to consult a doctor who will assess where to start and possibly issue referrals to other specialists. The starting point, however, will be to perform blood tests.

Blood tests – basic

A complete blood count will help assess haemoglobin, haematocrit, iron, magnesium, sodium, potassium, zinc and CK (creatine kinase) levels. In addition, vitamin B12, vitamin D, folic acid and ferritin levels should also be tested.

Why is it so important? [1] Deficiencies in vitamins and minerals can result in reduced performance, poorer results and even a greater propensity for injury. A great example would be vitamin D deficiency, which in physically active people can cause the risk of osteomalacia (bone disease) and osteoporosis. It will be equally important to test for iron, as iron deficiencies can reduce endurance and increase the amount of energy the body uses during training.

  • Do these tests: complete blood count, CRP, vitamin B12, D, iron, ferritin.

Hormone tests for active people

Hormones that are definitely worth testing include TSH and FT4 (i.e. thyroid), testosterone and cortisol. In the case of the latter two, it will be possible to assess whether a person is overtraining, which manifests itself, for example, through a decrease in muscle mass or body fat (which is not the intended goal), sleep problems, feelings of fatigue, and more frequent viral infections.

People who train frequently and ambitiously can also become overstrained, which manifests itself in a decline in shape and sometimes injury. It is precisely such heavy and gruelling workouts that can cause testosterone problems, and also increase cortisol levels [2], which is called the stress hormone. If elevated cortisol persists for an extended period of time, the body will react, for example, with a decline in shape, problems with recovery – sleep disturbances, depressive states, weakened immunity and, in women, a disruption of the menstrual cycle.

It will be especially important to examine the thyroid gland, because its diseases often result in lower energy, weight gain, and constant fatigue. This will negatively affect training and motivation to practice sports regularly.

  • Do these tests: TSH, FT3, FT4, cortisol.

Learn more about how physical activity affects hormones HERE.