How much cycling is enough? What endurance has to do with genes and blood values
The essentials at a glance
For adults, the World Health Organization recommends at least 150 to 300 minutes of moderate-intensity aerobic activity per week, or alternatively 75 to 150 minutes of vigorous-intensity activity (WHO, 2020). Cycling counts toward this. Two and a half hours per week are therefore the lower limit, not the goal, and you can spread them across the week.
More interesting than the figure itself is the question behind it: Why do two people get different results from the same 150 minutes? Part of the answer lies in predisposition, and part in values such as ferritin, vitamin D, and magnesium. Both can be measured, but neither explains everything.
First, you will learn where the 150 minutes come from and what moderate means on a bike. Then come four figures, three ways to ride, the question of predisposition, and three values that can hold you back. Warning signs and limitations come at the end.
What to expect in this article
1. Where do the 150 minutes come from?
2. What does moderate mean when cycling?
3. Four figures that put the question into perspective
4. What 150 minutes of cycling means in everyday life
5. Three ways to ride, and how the minutes count
6. Why two people do not get the same results from it
7. Two colleagues, the same route
8. Three values that can limit your endurance
9. Who would benefit from a test, and who would not
10. What each test measures
11. When to seek medical advice during exertion
12. Limitations: what is not covered here
Frequently asked questions
Sources
Where do the 150 minutes come from?
There is an official answer to the question of how much. It appears in the World Health Organization’s physical activity guidelines, which were revised in 2020 and published in the British Journal of Sports Medicine. Two sentences from them provide everything used in the calculations that follow.
Documented source
“Adults should do at least 150–300 min of moderate-intensity aerobic physical activity, or at least 75–150 min of vigorous-intensity aerobic physical activity.”
World Health Organization (WHO)
Bull FC et al., British Journal of Sports Medicine 54:1451–1462, 2020
In essence: at least 150 to 300 minutes of moderate-intensity or at least 75 to 150 minutes of vigorous-intensity aerobic activity per week. The same document contains a second sentence that is often overlooked: Adults should also engage in muscle-strengthening activity involving all major muscle groups on two or more days per week (WHO, 2020). Cycling covers the first part, but not the second.
The figure is known almost everywhere, but rarely reached. Almost one-third of adults worldwide, 31% or 1.8 billion people, do not reach 150 minutes of moderate activity per week (WHO, 2024). The recommendation is therefore less a benchmark for athletic people than a lower limit for everyone else.
Key message
The 150 minutes are not a training goal, but the lower limit for an entire week.
What does moderate mean when cycling?
Moderate is not a speed but an effort. The WHO distinguishes moderate from vigorous endurance activity and specifies a separate weekly amount for each (WHO, 2020). It does not specify a cycling speed, and that is not an omission.
The same incline is a moderate commute for one person and the most strenuous half hour of the day for another. That is why the classification depends on you, not on the route. Anyone who wants to hold on to a number will find it in the German version of the recommendations.
The Federal Centre for Health Education writes that adults should engage in at least 150 minutes per week of endurance-oriented activity at moderate intensity, “e.g. 5 x 30 minutes / week,” and “accumulate total activity in individual sessions of at least 10 minutes spread throughout the day and week” (BZgA, 2016). This answers the second question: ten minutes at a time already count.
The same booklet contains a sentence that has little to do with cycling and nevertheless belongs here. Adults should “avoid long, uninterrupted periods of sitting” and regularly interrupt sitting (BZgA, 2016). Anyone who cycles twice a day and sits for nine hours in between has fulfilled the first part but not the second.
What the recommendations say, and what they do not
The amount is specified
150 to 300 minutes of moderate or 75 to 150 minutes of vigorous activity per week, plus muscle strengthening on two days (WHO, 2020).
The distribution is specified
Sessions of at least ten minutes, spread throughout the day and week, for example five times thirty minutes (BZgA, 2016).
Speed, distance, and heart rate are not specified
Neither the WHO nor the BZgA specifies a speed, distance, or heart-rate range for cycling. Anyone presenting such a figure as official did not get it from these sources.
Four numbers that put the question into context
Four numbers explain why the question of how much almost never stands alone. The first is the recommendation. The second shows how many people meet it. The third and fourth explain why the same amount does not have the same effect on everyone.
150–300
minutes of moderate endurance activity per week for adults (WHO, 2020)
44,8 %
of women and 51.2% of men in Germany meet the endurance recommendation (RKI, 2021)
47 %
maximum heritability estimate for the training response of endurance performance (Bouchard et al., 1999)
16 mg
Iron per day for women aged 19 to under 51, 11 mg for men aged 19 to under 65 (DGE, 2024)
The second number deserves a second look. According to data from the GEDA 2019/2020 study, 44.8% of women and 51.2% of men meet the endurance recommendation, but only 23.1% of women and 29.0% of men meet both the endurance and muscle-strengthening recommendations (RKI, 2021). Those who cycle regularly are among the half who meet the endurance recommendation, but often not the muscle-strengthening one.
What 150 minutes on a bicycle mean in everyday life
Work it out once, and the number loses its sting. Five thirty-minute sessions per week add up to 150 minutes; that is the example calculation used by the BZgA itself (BZgA, 2016). A fifteen-minute commute each way on five days produces the same 150 minutes, without requiring you to set aside an appointment.
The ten-minute rule makes the difference between requirements and everyday life. Because sessions of at least ten minutes count and may be accumulated throughout the day and week (BZgA, 2016), the trip to the station does not fall through the cracks. Three such trips on five days also add up to 150 minutes.
What the calculation does not tell you is whether those 150 minutes feel easy or difficult for you. That is exactly where the interesting part begins. Two people with identical commutes report different experiences after three months, and this is rarely due to discipline.
What 150 minutes on a bicycle mean
Five thirty-minute sessions, two fifteen-minute commutes on five days, or many sessions of at least ten minutes spread throughout the week: all three approaches meet the same minimum (BZgA, 2016).
Three types of cycling, and how the minutes count
Cycling is not just one thing, but at least three. The trip to the nearby store, the daily commute, and the fast Sunday ride count differently, have been studied to different extents, and affect you differently when a lab value is holding you back.
| Type of cycling | Intensity in WHO terms | How the minutes count | What studies show | How to tell when a value is holding you back |
|---|---|---|---|---|
| Everyday cycling, shopping, and short trips | Usually moderate. The WHO does not specify a speed limit for cycling (WHO, 2020). | From ten minutes at a time. Three ten-minute sessions on five days add up to the full weekly amount (BZgA, 2016). | This source material contains no separate analysis for short everyday trips. | The familiar short route feels harder than it used to, even though nothing about the route has changed. |
| Cycling to work | Moderate to vigorous, depending on how hard you exert yourself. The classification depends on you, not on the number of kilometers. | Both the outward and return journeys count. Twenty minutes each way on four days adds up to 160 minutes (BZgA, 2016). | In the UK Biobank, cycling to work was associated with lower all-cause mortality, with a hazard ratio of 0.59, meaning a 41 percent lower risk compared with the reference group, and a 95 percent confidence interval of 0.42 to 0.83, the range in which the true value is highly likely to lie (Celis-Morales et al., 2017). Observational study, no proof of causation. | The same route takes you longer, and you are more tired after the return trip than you are used to. |
| Cycling, fast or hilly | Can be intensive. For this, the WHO gives 75 to 150 minutes per week as an equivalent alternative (WHO, 2020). | Intensive minutes count toward the smaller range, not in addition to the larger one (WHO, 2020). | The commuting analysis refers to the journey to work, not recreational cycling (Celis-Morales et al., 2017). | The springtime pace is no longer attainable, even though you continue training and have not changed your diet. |
The figures from the UK Biobank are impressive and are nevertheless often misread. 263,450 participants were observed over a median of five years, meaning half for longer and half for less, and during that time those who cycled to work had a lower risk of death and a lower risk of cardiovascular disease (Celis-Morales et al., 2017). This is an association. An observational study cannot distinguish whether cycling was the cause or whether healthier people cycle more often.
Why two people do not make the same thing of it
Maximum oxygen uptake, or VO2max for short, is the most commonly used measurement for endurance: it indicates how much oxygen your body can use at most under maximum exertion. The HERITAGE family study examined how strongly this value responds to training in families that completed the same program. What it found is the third number in the strip above.
The research group reported a maximum heritability estimate of 47% for the training response of VO2max (Bouchard et al., 1999). For the untrained baseline, the same group reported a heritability of at least 50%, while explicitly stating that non-genetic factors inflate this value to an undetermined extent (Bouchard et al., 1998). For those who want to go deeper: What VO2max indicates and how it is determined is explained in the article on the VO2max value.
Now comes the part that advertising copy likes to leave out. The 47% from the HERITAGE study (Bouchard et al., 1999) also means that more than half of the differences in training response are not due to genetic predisposition. An analysis of genetic makeup explains why your progress looks different from that of your companion. It does not tell you how many minutes you should cycle, nor how far you will go.
Key message
Genetic predisposition is not a fixed determination. It explains part of the pace, never the destination.
Two colleagues, the same route
Genetic predisposition is one explanation for unequal outcomes. The second is more mundane and easier to test. The following scenario is fictional, but the values in it are not.
Fictional scenario for illustration
Example: Anke and Mira, 38 and 41
Anke and Mira work in the same office and have been cycling the same eighteen-minute route there and back, four days a week, since April. After three months, Anke says the hill before the bridge has become shorter. Mira says she now has to push. She sleeps for the same amount of time, eats no differently, and has not skipped her route a single time. Her general practitioner finds a normal blood count and suggests checking her iron stores separately. The ferritin level is in the lower range. Mira's problem was never a lack of willpower.
The key point in this scenario is the sentence about the normal blood count. Iron deficiency without anemia means exactly that: hemoglobin within the reference range, but reduced iron stores, with a ferritin level below 12 to 40 micrograms per liter depending on the threshold used (Deutsche Zeitschrift für Sportmedizin, 2024). Anyone who looks only at the complete blood count will not see this condition.
Three values that can slow down your endurance
Three values come up again and again in this question. The same applies to each of them: It explains nothing on its own, and it is a snapshot. What it can do is turn a feeling into a number that can be discussed in practice.
Ferritin: the iron store
According to the German Nutrition Society, iron is “an important component of hemoglobin and is involved in blood formation, oxygen transport in the body, and many metabolic processes,” and iron deficiency “can impair physical performance, disrupt the body's thermoregulation, and increase susceptibility to infections” (DGE, 2024). The reference value for daily intake is 16 milligrams for women aged 19 to under 51 and 11 milligrams for men aged 19 to under 65 (DGE, 2024). This is the only documented point in this article at which women and men differ in their requirements.
Ferritin is the protein that stores iron and declines earlier than hemoglobin. A sports medicine review article describes how iron deficiency can impair performance through energy deficiency, suppressed training adaptation, impaired recovery, and fatigue (Deutsche Zeitschrift für Sportmedizin, 2024). Nevertheless, a single ferritin value remains one data point: Without hemoglobin and CRP, the context is missing, and inflammation can raise the ferritin level without any change in iron stores. The difference between the two explains the article Ferritin and Iron Compared; the available testing methods are listed under Testing for Iron Deficiency: The Methods.
Vitamin D and magnesium: what the regulation permits
For these two nutrients, the wording is strictly regulated, and for good reason. Regulation (EU) No 432/2012 permits the claim “Vitamin D contributes to the maintenance of normal muscle function” exclusively for foods that meet the minimum requirements for being a source of vitamin D (European Commission, 2012). For magnesium, the claims “Magnesium contributes to normal muscle function” and “Magnesium contributes to the reduction of tiredness and fatigue” are authorized, likewise only for foods that are a source of magnesium (European Commission, 2012).
These statements concern foods, not you. “Contributes to the reduction of tiredness” does not mean that your tiredness is caused by magnesium. What looking at the values provides is a basis for the conversation: Determining vitamin D deficiency and Magnesium and its deficiency symptoms explain when testing is actually useful.
Ferritin
Note how long the same route has been more difficult for you. Ask about ferritin together with hemoglobin and CRP. A single value provides little information. Classification source: German Nutrition Society, as of 2024.
Vitamin D
Note how much time you spend outdoors and whether you are already taking anything. The authorized wording concerning muscle function applies to foods. Source: Regulation (EU) No 432/2012, as of 2012.
Magnesium
Describe when the symptoms occur, during the journey or the night afterward. The same applies here: the wording refers to foods. Source: Regulation (EU) No 432/2012, as of 2012.
These tiles are a preparation for your conversation with your doctor, not a self-diagnosis. If you want to see all three values in one test, ferritin and vitamin D are available, among others, in the blood profiles from mybody®x (MYBODY Lab GmbH), in the Men’s Wellness Check and the Women’s Wellness Check. Both use capillary blood, meaning a few drops taken yourself from the fingertip, unlike a blood draw from a vein.
Who benefits from a test and who does not
A test is worthwhile if you do something differently afterward. If your response to the result would be the same in every case, you can save yourself the detour. The following distinction is intentionally pointed.
Makes sense for you if …
you ride regularly and have made no progress for weeks, even though the distance and volume have not changed.
you are tired despite exercising regularly and want to know whether a value such as ferritin could be behind it.
you want to know whether strength or endurance comes more easily to you due to your genetic predisposition and want to use the answer for your planning.
Probably not if …
you experience heart problems under exertion. Then the next step belongs in a doctor's office, not in a self-test.
you participate in competitive sports with sports-medicine supervision and already receive regular laboratory checks.
you are pregnant. Requirements and reference ranges shift, and monitoring is carried out by the practice providing your care.
What the tests measure
Two tests from mybody®x's range match the two questions addressed in this article. One looks at predisposition, the other at a single value. They answer different questions and do not replace each other.
DNA test from saliva
Fitness | VITALITY DNA test
Analyzes over 100 genetic variations from a saliva sample and provides 32 analysis reports, including endurance, strength, and recovery. What the test does not do: It does not give a number of minutes, prescribe a training plan, or assess your current condition. It describes predispositions, not a predetermined outcome, and does not replace a medical examination.
Laboratory evaluation 15–25 business days after receipt of the sample
Rapid test for home use
Iron ferritin self-test
Provides an indication of your ferritin level, the iron stored in your body, from a few drops of capillary blood. What the test does not do: It measures neither hemoglobin nor CRP, does not place the value in the context of a trend, and does not provide a diagnosis. An abnormal result belongs in a doctor's office, not in a decision to take supplements on your own.
Result at home after 5 to 10 minutes
A note for clarification, because the names sound similar: The Fitness | The VITALITY DNA test uses saliva and describes predispositions that do not change. A blood test describes a condition that can change within weeks. Anyone who wants to know why their legs feel heavy today needs the latter.
When to get symptoms during exertion evaluated
There are symptoms for which a self-test is not the right next step. They are rare, and they take priority over any question about the weekly amount.
Take this to a medical practice, not to a self-test
Pressure or pain in the chest while pedaling
Even if it subsides immediately when you stop. This should be medically assessed before you continue cycling.
Dizziness, blacking out, or fainting
Especially when it occurs during exertion and not only afterward.
Shortness of breath that does not match the pace
When a hill leaves you breathless even though you cycled it while talking the previous month.
Heart palpitations or a very irregular pulse
Note when it occurs and how long it lasts. In practice, this information is more helpful than any number from a self-test.
Limitations: what is not included here
This article contains no training plan, weekly structure, or heart-rate range. That is intentional. The sources it draws on do not specify such things, and what they do not specify is not added here.
The question of women and men also remains more narrowly answered than the headings of other texts might suggest. A difference is documented in the proportion of people who meet the recommendation (RKI, 2021), as is a difference in iron requirements (DGE, 2024). There are no separate minute recommendations because the WHO does not provide any.
And the tests: An analysis of genetic makeup describes predispositions, not an outcome. A rapid ferritin test provides guidance, not a diagnosis. Both are a starting point for a conversation in which someone considers your values, symptoms, and medical history together.
So how much cycling is enough? Two and a half hours per week, says the WHO, and that is where it ends. None of the recommendations says whether those two and a half hours should feel like progress or exertion. That is reflected in your values.
Frequently asked questions
Is 150 minutes of cycling enough if I do nothing else?
For the endurance component, yes; for the recommendation as a whole, no. Alongside 150 to 300 minutes of endurance activity, the WHO also recommends muscle-strengthening activity on two or more days per week that involves all major muscle groups (WHO, 2020). This is where things often fall short: 44.8% of women and 51.2% of men meet the endurance recommendation, but only 23.1% of women and 29.0% of men meet both parts (RKI, 2021).
Does the short walk to the bakery count?
If it lasts at least ten minutes continuously, it counts. The German physical activity recommendations explicitly state that total activity may be accumulated in individual sessions of at least ten minutes throughout the day and week, for example three ten-minute sessions per day on five days (BZgA, 2016). Two minutes to the mailbox therefore do not count, while the journey to and from the train station usually does.
Should women cycle for a different length of time than men?
No. The WHO makes one recommendation for adults, not two (WHO, 2020). Two other differences are documented: In Germany, 44.8% of women and 51.2% of men meet the endurance component of the recommendation (RKI, 2021), and the reference value for daily iron intake is 16 milligrams for women aged 19 to under 51, compared with 11 milligrams for men (DGE, 2024). Anyone who reads separate numbers of minutes should ask for the source.
Can a DNA analysis tell me how many minutes I should cycle?
No, and this is not a question of resolution but of what the test can determine. An analysis of genetic predisposition describes traits, for example in the areas of endurance, strength, and recovery. How strongly endurance performance responds to training is attributable to genetic predisposition by up to an estimated heritability of 47% (Bouchard et al., 1999). The larger part is not. This does not yield a number of minutes, but it does provide a more realistic expectation of your own pace.
What is the difference between a rapid ferritin test and a laboratory result?
The rapid test provides guidance from a few drops of capillary blood - taken from the fingertip rather than a vein - within minutes at home. A laboratory result, by contrast, evaluates the ferritin level together with hemoglobin and inflammation markers. This is important because iron deficiency can exist without anemia even when hemoglobin is normal, with reduced stores below 12 to 40 micrograms per liter depending on the cutoff (Deutsche Zeitschrift für Sportmedizin, 2024).
Next step
First the question, then the test
If you’re wondering why your progress looks different from that of the person training with you, take a look at your predisposition. If you’ve been tired for weeks, start by checking your iron stores.
Fitness | View the VITALITY DNA test View the iron-ferritin self-testRead more
You might also be interested in this
The counterpoint to endurance: Why strength comes more easily to some and where predisposition ends.
What a low iron store reveals in everyday life, beyond fatigue.
Sources
- WHO, Bull FC et al.: World Health Organization 2020 guidelines on physical activity and sedentary behaviour, British Journal of Sports Medicine 54:1451–1462 (2020) - pubmed.ncbi.nlm.nih.gov
- Federal Centre for Health Education: National recommendations for physical activity and physical activity promotion, special issue 03 (2016) - bundesgesundheitsministerium.de
- Robert Koch Institute, Richter A et al.: Health-promoting behaviour among adults in Germany, Journal of Health Monitoring 6(3), data from GEDA 2019/2020 (2021) - ncbi.nlm.nih.gov
- Celis-Morales CA et al.: Association between active commuting and incident cardiovascular disease, cancer, and mortality, BMJ 357:j1456 (2017) - bmj.com
- Bouchard C et al.: Familial aggregation of VO2max response to exercise training, Journal of Applied Physiology 87(3):1003–1008 (1999) - pubmed.ncbi.nlm.nih.gov
- German Nutrition Society: Reference values for iron (as of 2024) - dge.de
The weekly amounts and muscle strengthening recommendations are based on [1], the ten-minute sessions and sample calculations on [2], the proportions for women and men on [3], the analysis of cycling to work on [4], the heritability estimate on [5], and the iron reference values on [6]. Additional sources cited: the WHO fact sheet on physical activity (2024) for the 1.8 billion, Bouchard C et al. in Medicine and Science in Sports and Exercise 30(2) (1998) for heritability in the untrained state, Nolte S et al. in the German Journal of Sports Medicine 75 (2024) for ferritin and performance, and Regulation (EU) No 432/2012 (2012) for the authorized claims on vitamin D and magnesium. All sources were checked on 08.09.2026. Product information is taken from the mybody®x product pages, as of 08.09.2026.
mybody®x Editorial & Expert Team
Exercise and endurance Iron and ferritin DNA analysis
This article was created by the mybody®x editorial team and checked against the sources cited. Information about the people behind it can be found on the author page.
Published on 08.09.2026 · Last updated on 08.09.2026
The content is intended for general information and does not replace medical advice, diagnosis, or treatment. Reference ranges depend on the laboratory, method, and age; the information on your report is always authoritative. Our products are not intended to diagnose, treat, cure, or prevent diseases. The DNA analysis is intended to provide nutrition and lifestyle advice. It is not a diagnostic procedure, does not predict disease, and does not replace a medical examination or consultation. Genetic variants describe probabilities in population groups, not certainties for individuals.
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