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You might recognize this: after one flight of stairs, you're out of breath, or you'd like to keep up with friends but quickly have to take a break. Better fitness not only gives you more energy in your daily life but also makes exercise more enjoyable. The good news? You don't have to run a marathon to see results. With the right approach, you'll notice a difference within a few weeks.
What's happening in your body:
When you build up your fitness, you train your heart, lungs and muscles to work more efficiently.
Your heart pumps more blood with every beat, which helps your muscles get oxygen faster.
As a result, the same effort feels less strenuous after a while.
What you notice after a few weeks:
After four to six weeks of training, your heart rate during an easy run will remain lower than it was in the beginning.
Your body simply becomes better at handling the load.
Start with short intervals of running and walking.
For example, start with:
1 minute of easy jogging
2 minutes walk
repeat 5 to 6 times
This way your body gets used to the movement without immediately becoming overloaded.
Train two to three times a week with at least one rest day in between, this gives your body enough time to recover and become stronger.
The most important rule:
Increase your total running time each week by up to ten percent.
This keeps your training organized and prevents your body from being strained too quickly.
Here's how to apply it:
If you walk for thirty minutes this week, make it a maximum of thirty-three next week
keep track of your weeks so you can see exactly how you are building up
Never force extra minutes if your body feels tired
Prevent complaints:
This approach reduces the risk of shin and knee complaints that often arise from building up the training too quickly.
Always listen to your body's signals and take an extra day of rest if you feel any pain.
Quiet training as a basis:
Long, steady runs form the basis of your fitness training.
Walk at a pace at which you can comfortably carry on a conversation.
For additional progress:
Short interval blocks help you improve your fitness faster.
For example, alternate two minutes of brisk walking with two minutes of easy jogging.
To discover more ways to increase your pace, read our practical tips for running faster .
This is how you build your week:
one longer training
one workout with faster intervals
the rest of the week at a quiet and comfortable pace
This variation keeps your workouts fun and effective.
Rest makes you stronger:
Many beginning runners think that training more is automatically better, but it is during rest days that your body adapts and you become stronger.
Plan your rest consciously:
one to two full rest days per week
light exercise such as walking or cycling is fine
keep your workouts light when you're tired
Sleep as a recovery moment:
Your muscles recover optimally during your night's sleep.
Getting enough sleep makes every workout more effective.
Why strength training helps:
Strong leg muscles and a stable core make you a better runner.
It ensures that you maintain your posture for longer and get tired less quickly.
Easy to add:
short strength exercises twice a week
squats
lunges
planks
You can do these exercises at home and they will quickly produce noticeable results.
For the first three weeks, running will probably feel quite hard.
Then you notice that it becomes more and more natural and that you can keep it up for longer.
After six to eight weeks of structured training, a complete beginner can often run for ten to fifteen minutes at a time, provided you maintain a training frequency that suits your body type. If you're unsure, it helps to know how many times a week it's wise to run for your level.
Within three to four months, most people can manage to jog for thirty minutes straight. Everyone develops at their own pace, so be sure to compare yourself to your starting point.
Start each workout with five minutes of easy walking or jogging to warm up your muscles. A good warm-up increases your body temperature and loosens your joints, reducing the risk of injury.
Set fixed training times in your calendar and treat these appointments as important. This way, you'll start each session mindfully, rather than rushing. A gentle, consistent warm-up ensures your body responds better to the training that follows and your muscles move more smoothly.
About two hours before your workout, eat a light meal with carbohydrates, such as oatmeal or a banana with peanut butter. Immediately after a more intense workout, a combination of carbohydrates and protein helps your body recover.
Drink plenty of water throughout the day, not just while running. For workouts shorter than an hour, you usually don't need an extra sports drink or energy gel; plain water is fine.
Take care of your own body
The easiest way to measure your fitness is to pay attention to your breathing and heart rate while running the same route.
After a few weeks, can you run the same distance with a lower heart rate or less effort? Then your fitness will noticeably improve.
Additional resources
A sports watch or app can help track your pace and heart rate. If you like to take your phone with you for measurements, a running phone holder is convenient and secure.
Quick self-test while walking:
✅ Can you still talk while walking?
✅ Does your breathing feel calm?
✅ can you continue for longer than last week?
✅ Do you recover faster after the same effort?
If you're able to tick more and more boxes, you're on the right track. To better understand how pace and effort are related, read our explanation of average running speed .
