Conditioning

20-minute HIIT sessions you can do in a small apartment

High-intensity work does not require burpee marathons. In shared buildings, the better approach is controlled effort with low-impact movements and short rest.

The template

Low-noise circuit

Intensity cues

During work intervals, breathe hard but stay in control. You should be able to say a short sentence, not hold a conversation. Stop if joints feel sharp pain.

How often

Two sessions per week is enough for most beginners when paired with strength training. More is not automatically better — quality and consistency are.

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