When in isolation, Smith said there is "about a 20% reduction" in daily physical exertion.
He said doing basic activities, walking and avoiding long periods of sitting down are "very good ways to increase the physical demand on our body".
"It's not going to put us in a strenuous demand that's going to cause adverse reactions."
Meanwhile, Covid cases and hospitalisations across Australia and New Zealand look like this:
Western Australia
- New cases: 16,670
- Covid-related deaths: 6 (backdated from May 3)
- Hospital and ICU admissions: 275 / 8
Northern Territory
- New cases: TBA
- Covid-related deaths: TBA
- Hospital and ICU admissions: TBA
Australian Capital Territory
- New cases: 1,132
- Covid-related deaths: 0
- Hospital and ICU admissions: 74 / 5
Queensland
- New cases: 7,271
- Covid-related deaths: 3
- Hospital and ICU admissions: 437 / 16
New South Wales
- New cases: 12,600
- Covid-related deaths: 23
- Hospital and ICU admissions: 1,403 / 56
Victoria
- New cases: 14,333
- Covid-related deaths: 15
- Hospital and ICU admissions: 545 / 29
South Australia
- New cases: 4,696
- Covid-related deaths: 7
- Hospital and ICU admissions: 210 / 7
Tasmania
- New cases: 1,058
- Covid-related deaths: 0
- Hospital and ICU admissions: 42 / 1
New Zealand
- New cases: 9,392
- Covid-related deaths: 9
- Hospital and ICU admissions: 398 / 7
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