On av­er­age, how many of our mus­cles do we use reg­u­larly?

Focus-Science and Technology - - Q&A - PAUL LES­LIE, LV

JUST ABOUT ALL of them! But

our least-used mus­cles are prob­a­bly the

lum­bar mul­ti­fidus mus­cles in the lower

back. Stud­ies have shown that pro­longed

slumpingump­ing in front of the TV can in­ac­ti­vate

th­ese mus­cles. This can lead to back

pain, and once in­ac­ti­vated they can take

months to re­cover.

We’re not con­vinced that a 5kg bar­bell gave him those bi­ceps

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