Opposite arm, opposite leg, just like your instructor says

A good example of Nordic walking technique.

Freedom of Movement Festival in Russia

Nordic walking is one of the important forms of movement exercise. See the translation on the Facebook page.

 

It doesn’t include an urge to take a selfie in front of a gym mirror

An interesting article found via Instapundit: A single exercise session can have positive effects on your brain.

Main points:

• “…physical activity may protect against neurodegeneration and other aging-related forms of cognitive impairment.”
• “…exercise was shown to increase levels of dopamine, epinephrine, norepinephrine, and serotonin.”
• “Dopamine helps the brain to learn and is involved in the rewarding circuits.”
• “…serotonin…relieves anxiety and depression.”
• “…a single exercise session seemed to increase levels of so-called neuromodulators. These include endogenous opioids and endocannabinoids - that is, "feel good" chemical substances that are naturally produced by the brain when we exercise. These account for the runner's high effect and exercise-induced states of euphoria.”

A good Nordic walking excursion, even around your neighborhood can create those changes. A bonus: you can socialize with a walking partner, gaining even more psychological benefit.