2020: A Year in Fitness Like No Other

This year, the novel coronavirus crept into and transformed every aspect of our lives, including our fitness. In countless ways — some surprising, and a few beneficial and potentially lasting — it altered how, why and what we need from exercise.

At the start of the year, few of us expected a virus to upend our world and workouts. In January and February, I was writing about topics that seemed pressing at the time, such as whether low-carbohydrate, ketogenic diets endanger athletes’ skeletal health; if fat-soled, maximalist running shoes might alter our strides; and how completing a marathon — remember those? — remodels first-time racers’ arteries.

The answers, by the way, according to the research, are that avoiding carbs for several weeks may produce early signs of declining bone health in endurance athletes; runners donning super-cushioned, marshmallowy shoes often strike the ground with greater force than if they wear skinnier pairs; and a single marathon renders new runners’ arteries more pliable and biologically youthful.

But concerns about shoe cushioning and racing tended to fade in March, when the World Health Organization declared Covid-19 a pandemic and we suddenly had new, top-of-the-mind worries, including social distancing, masks, aerosol spread and lockdowns.

The effects on our exercise routines seemed to be both immediate and stuttering. At that time, none of us knew quite how and whether to work out in these new circumstances. Should we still run, ride and stroll outside if our community had instituted stay-at-home restrictions? Did we need to wear a mask during exercise — and could we do so without feeling as if we were suffocating? Were communal drinking fountains safe?

My first column grappling with these and related topics appeared on March 19. The experts I spoke with then were adamant that we should aim to remain physically active during the pandemic — but avoid shared drinking fountains. They also pointed out, though, that many questions about the virus, including how to exercise safely, remained unresolved.

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