Educatie fizica

Pe masura ce salile de sport incep sa se redeschida, multi dintre noi ne intrebam daca este sigur sau intelept sa ne intoarcem.

Credit … OK McCausland pentru The New York Times

Publicat pe 13 mai 2020 Actualizat pe 16 iulie 2021

Este sigur sa va intoarceti la sala de sport? Intrucat un numar tot mai mare de comunitati usureaza mandatele de sedere la domiciliu pe care le-au pus in aplicare pentru a atenua raspandirea noului coronavirus, salile de sport incep sa isi redeschida usile – chiar daca virusul continua sa infecteze alte mii in fiecare zi.

Pentru a afla mai multe despre sali de sport si riscurile pentru expunerea la coronavirus acolo, am vorbit cu medici, cercetatori, ingineri si un proprietar de sala de sport din Atlanta, a caror unitate recent redeschisa se adreseaza, partial, oamenilor de stiinta din Centrele de Control si Prevenire a Bolilor din apropiere. Ceea ce urmeaza este consensul lor de experti cu privire la daca, cand si cum se poate intoarce cel mai bine inapoi in siguranta la camere de greutate, aparate cardio si clase, inclusiv sfaturi despre servetelele de gimnastica care sunt eficiente, ce echipament este cel mai murdar, cum sa se distanteze social pe benzile de alergat si de ce ar trebui sa pastram mai multe prosoape de sala curate drapate peste umeri pe tot parcursul antrenamentelor noastre.

Sali de sport si germeni

Prin natura lor, facilitatile sportive, cum ar fi salile de sport, tind sa fie germinale. Intr-un studiu publicat la inceputul acestui an, cercetatorii au descoperit bacterii rezistente la medicamente, virusul gripei si alti agenti patogeni pe aproximativ 25% din suprafetele testate in patru facilitati de antrenament atletic diferite.

„Cand aveti o densitate relativ mare de oameni care exercita si transpirati intr-un spatiu restrans, aveti conditii in care bolile transmisibile se pot raspandi cu usurinta”, spune dr. James Voos, presedintele chirurgiei ortopedice la Centrul Medical al Spitalelor Universitare Cleveland, medicul echipei sefe pentru Cleveland Browns si autor principal al studiului.

Echipamentele de gimnastica pot fi, de asemenea, diabolic dificil de igienizat. Ganterele si clopotele de fierbator, de exemplu, „sunt metalice foarte tactile, cu forme ciudate si multe locuri diferite pe care oamenii le pot intelege”, spune dr. Deverick Anderson, profesor de medicina si director al Centrului Duke pentru administrarea antimicrobiana si prevenirea infectiilor la Duke University Medical Center din Durham, NC Grupul sau se consulta cu Liga Nationala de Fotbal si cu alte echipe sportive despre controlul infectiilor. „Nu sunt usor de curatat.”

In consecinta, „oamenii vor trebui sa inteleaga si sa accepte ca va exista un anumit risc” de transmitere a virusului, daca si cand isi vor revizita salile de sport, spune dr. Anderson.

„Dar”, spune el, „exista multi pasi pe care oamenii ii pot face pentru a atenua aceste riscuri.”

Spalati. Pulverizati. Astepta. Sterge. Repeta.

In primul rand si cel mai esential, sunt de acord expertii, intentioneaza sa te dezinfectezi pe tine si pe orice suprafata pe care o atingi frecvent la sala de sport.

„Ar trebui sa existe o chiuveta cu sapun, astfel incat sa va puteti spala pe maini, sau o statie de dezinfectare a mainilor imediat ce intrati pe usa”, spune Radford Slough, proprietarul Urban Body Fitness, o sala de sport din centrul orasului Atlanta frecventata de medici. si oamenii de stiinta CDC. Procedurile de conectare nu ar trebui sa necesite atingere, iar angajatii salii de sport ar trebui sa stea in spatele stranutilor sau sa poarte masti de fata, adauga el.

The gym space itself should be plentifully stocked with spray bottles containing disinfectant that meets Environmental Protection Agency standards against coronavirus, as well as clean cloths or bleach wipes for sanitizing surfaces. The standard all-purpose wet wipes that many gyms stock are not E.P.A.-approved, Dr. Voos says, and “will not kill most germs. ” Bring your own water bottle to avoid using drinking fountains.

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When spraying a disinfectant, give it time — a minute or so — to kill germs before wiping. And clean any grime or dust off surfaces first.

Ideally, other gym patrons who have lifted weights or perspired on machines will have scrupulously scrubbed them afterward. But do not depend on the cleanliness of strangers, Dr. Anderson says. Instead, disinfect any weights, bars, benches and machine rails or knobs yourself before and after every use.

It would be advisable, too, to carry several clean towels, he says. “I would keep one on my left shoulder to wipe sweat from my hands and face, so I am not touching my face all the time, and the other to cover the weight bench” or yoga mat.

Space Out

Social distancing is also necessary. Mr. Slough says to reduce density, his gym currently allows only 30 people an hour into its 14,000-square-foot facility. Colored tape on the floor boxes off spaces wide enough to keep weight trainers at least six feet apart on either side.

Treadmills, elliptical machines and stationary bicycles also can be moved apart, or some can be taped off or removed from service, Dr. Anderson says.

But appropriate distancing during indoor aerobic exercise remains problematic, says Bert Blocken, a professor of civil engineering at Eindhoven University of Technology in the Netherlands and KU Leuven in Belgium. Dr. Blocken, who studies airflow in buildings and around bodies, says exercisers breathe heavily and produce many respiratory droplets, and with no wind or forward momentum to shift and disperse these droplets, they could linger and drop inside the facility.

“Therefore,” he says, “it is very important to have a well-ventilated gym,” preferably using a system that constantly refreshes inside air with filtered air from outside. If your gym does not have such a system, expect, at minimum, “peak natural ventilation” — meaning wide-open windows on opposite walls — to help move air from inside out, he says.

Educated Decisions

Finally, to help these various safety measures take hold, gyms should sprinkle their space with posters and other reminders of why and how to sanitize, Dr. Voos says. In his study of microbes and infection control at athletic facilities, germs became somewhat less prevalent when the researchers set out cleaning supplies for trainers and athletes. But the prevalence of germs fell almost to zero when they began regularly educating the facilities’ users about how and why to clean their hands and surfaces.

Still, the decision about whether to return to our gyms as soon as they open likely will remain knotty and personal, dependent to some extent on how each of us balances the benefits of exercise, risks of infection and any health fragilities among those we live with and would return to after working out.

There also may be flash points, including about masks. Dr. Anderson predicts that “few people will wear them” while working out inside, though gyms may require them. He also notes they would rapidly dampen during exercise, reducing their antimicrobial benefits.

“What it comes down to is that the risks will never be zero,” Dr. Anderson says. But at the same time, “there are so many mental and physical health benefits” to the workouts. “So, my approach is that I will accept some risk but be aware of the steps I need to take to mitigate it. And then, yes, I will go back.”