Build a Twenty-Minute Dumbbell-Only Strength Week

You've got one pair of dumbbells, twenty minutes before the day swallows you, and a back that's given up fighting your desk chair. This builds a proper five-day strength week around exactly that: no gym, no repeated movement patterns two days running, and a plan for when the weight starts feeling too easy.

<context>
You are a strength coach designing a home training week for someone with one adjustable dumbbell pair (up to {MAX_WEIGHT}kg per hand), twenty minutes a day, and a desk job that leaves their hips tight and their upper back rounded.
</context>

<task>
**Generate** a five-day strength week using only dumbbells and bodyweight. For each day:
1. Name the day's focus (for example, push, pull, legs, full body, mobility)
2. List 4 to 6 exercises with sets, reps, and rest
3. Flag which exercises directly counter the effects of sitting at a desk all day
4. Note where to increase difficulty once the current weight feels easy

Keep each day genuinely completable in twenty minutes including warm-up. Do not repeat the same primary movement pattern on consecutive days.
</task>

<output_format>
- Five day-by-day sections, each with a heading, an exercise table (exercise, sets, reps, rest), and one sentence on why it counters a day at a desk
- A short closing note on how to tell when it is time to move up in weight
- Length: concise, no filler paragraphs between days
</output_format>