HIIS noun [U]
/hɪs/
abbreviation for high-intensity interval skipping: physical training that consists of short periods of intense skipping with short periods of rest in between

Forget HIIT, HIIS … is likely to become a big fitness trend in 2019. The exercise, involving short, sharp bursts of skipping, is one of the many ways that the Victoria’s Secret Angels keep in shape, as you can burn up to 1200 calories in a session.
[www.harpersbazaar.com, 14 December 2018]

fitness snacking noun [U]
/ˈfɪt.nəs.snæk.ɪŋ/
keeping fit by doing very short periods of physical activity regularly

British celebrity personal trainer Matt Roberts recently told The Telegraph that ongoing spurts of physical activity can help prevent illnesses associated with sedentary lifestyles, like heart disease and diabetes. The fitness expert said that not enough people get the daily exercise they need, and ‘fitness snacking’ is an approach that helps folks incorporate physical activity in a manageable way.
[globalnews.ca, 1 October 2018]

immersive yoga noun [U]
UK /ɪˈmɜː.sɪv.ˈjəʊ.gə/ US /ɪˈmɝː.sɪv.ˈjoʊ.gə/
a type of yoga accompanied by relaxing sounds and images

The city’s immersive yoga trend feeds into a wider, global movement. New York’s Woom Centre, for example, offers classes complete with sound therapy, blindfolded segments, essential oils and a gulp of a “fresh elixir” shot, while Humming Puppy in Melbourne, Sydney and NYC pipes sound at supposedly healing frequencies into the studio.
[www.eventbrite.com, 20 June 2018]

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