Some ex­perts be­lieve that we sel­f­reg­u­late to keep our ac­tiv­ity lev­els sta­ble. A new study says oth­er­wise

Runner's World (UK) - - Fitness -

Are ac­tiv­ity lev­els pre­de­ter­mined? Some ex­perts be­lieve so, claim­ing in­creases in ● ex­er­cise are coun­tered by an un­wit­ting re­duc­tion in how much we move the rest of the time. The so-called ‘ac­tiv­i­tyst at’ would make our ef­forts to in­crease our phys­i­calac­tiv­ity lev­els a los­ing bat­tle, so Aus­tralian re­searchers tested the the­ory. They took 129 non-ex­er­cis­ers and split them into a 150-min­utes-per week ex­er­cise group, a 300-min­utes per week group and a no-ex­er­cise group. They mon­i­tored 24-hour ac­tiv­ity lev­els and en­ergy ex­pen­di­ture of the three groups for six weeks. The re­sult? No ev­i­dence of com­pen­satory loaf­ing among the ex­er­cis­ers. Both th­ese groups were far more ac­tive – and burned more calo­ries – than the no-ex­er­cise group.

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