1, rowing machine
Rowing is a long-term and stable sport. The trick is to start with 4-6 groups of moderate resistance. 10 minutes. Practice in each group and take a break of 2-3 minutes. This way, your heart rate will not decrease all the way, and you can always be ready to increase your intensity.
Step 2 pedal
Start with a slope of 2%, run a few groups and then increase to a slope of 10% (just walk at this time). The greater the intensity, the shorter the time required.
3. Bicycle
First, adjust the appropriate seat. Sit on it, with the soles of your feet against the center of the pedal, and your legs completely straight down, just reaching the lowest point of pedal rotation, so that you can use all your strength. Start with 2-3 minutes of high-intensity cycling, rest for 3 minutes, and then repeat 15 minutes.
4. Run the crossover machine
Try the next 90-second burst every few minutes, 180-second recovery. When your physical condition improves, you can reduce your rest time.