This past week I was away for the 4th of July holiday; I got back on Wednesday evening and the next day was a fast day on the Jewish calendar so I did not hold my group fitness class. Not only had I missed a number of days of working out (although there was a lot of walking in Boston), my clients had as well. On Friday and this week already, my clients and I are seeing the difference…and it is not pretty.

In 2020 at the beginning of the Pandemic, I had blogged about this because so many people stopped going to the gym and had not yet figured out how to keep active. Back then, I had noted that within a month decreases in stamina and muscle strength were already detectable. More recent research shows that “deterioration” can begin closer to 14 days and even as early as 10. Those who did not work out for two weeks, according to one source, saw a decrease in muscle strength of 4%. This may not seem like a lot, but what if that two weeks drags on to three, or four, or more?

The key takeaway is that it is better to try to exercise even a little bit. Quickie workouts can be effective too. On vacation, a brisk walk or taking the stairs instead of an elevator can make a difference. Many think that after an absence of physical activity, it will not be too difficult to hop right back into it. Ask anyone who took a break due to surgery just how accurate that is–not at all!

Use it or lose it is a cute phrase, but research bears out that there is truth in this little rhyme. The next few weeks with my clients getting back into the swing of things will be challenging. Next time, there will be better planning for how we can all stay active even when I am not available.