are great for strengthening shoulders.
The core comes
into play if you're bracing
correctly when lifting,
and your arms
should feel some of the strain after
1. Stand or sit with dumbbell in each hand at your side
2. Keep your back straight, brace your core, slowly lift the weight out
to the side untill arms are parallel with floor, with elbow slightly bent.
3. Lower them back down, again in measured fashion-
you'll find it all the harder if you avoid speeding up
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*Reminder : Don't overdo it