When they started worshiping this way......
It was during Holy Mass which formed part of their Retreat.
These group of nuns are the Franciscan Sisters, T.O.R. of Penance of the Sorrowful Mother. The photos came from their Facebook page.
This might be part of their charism, to worship this way, but certainly, not my cup of tea, nor is it a liturgical practice of the Catholic Church.
Pentecostal style of worship happened only during Liturgical Revolution after Vatican II when it was a free for all. Anything new for as long as the old is dumped and forgotten!
Jews did not worship this way...nor did the early Christians no matter how some nutty liturgist try to revise history.