As of Saturday, they started operating under special regulations limiting the number of customers on site.
The fitness industry, which generates around PLN 4 billion of annual income and employs about 80,000 people, was one of the first to close down after the COVID-19 outbreak.
According to a survey by pollster Kantar in April, 85 percent of Poles said they wanted to increase their level of physical activity after the end of the COVID-19 pandemic.
Danuta Isler visited a McFit fitness centre in Warsaw on Saturday morning, where she spoke to Katarzyna Radzikowska, communications manager for McFit Poland.