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letter
. 2021 Feb 17;3(1):54–57. doi: 10.1016/j.smhs.2021.02.003

Table 1.

Specific recommendations on PA, SB and SLP for young children at different age periods.

Infants Children of 1–2 years old Children of 3–4 years old
PA
  • ●

    Engaging in various types of PA

  • ●

    More is better
  • ●

    At least 3 h of PA at any intensity per day

  • ●

    MVPA is encouraged

  • ●

    More is better
  • ●

    At least 3 h of PA at any intensity per day

  • ●

    MVPA is needed for at least 1 h per day

  • ●

    More is better



SB
  • ●

    SB should not be more than 1 h at a time

  • ●

    ST is not recommended (less is better)

  • ●

    Educational SB is encouraged
  • ●

    SB should not be more than 1 h at a time

  • ●

    ST is not recommended (1 year old) (less is better)

  • ●

    ST is not recommended more than 1 h (2 years old)

  • ●

    Educational SB is encouraged
  • ●

    SB should not be more than 1 h at a time

  • ●

    ST is not recommended more than 1 h

  • ●

    Educational SB is encouraged



SLP
  • ●

    14–17 h with good sleep quality (0–3 months)

  • ●

    12–16 h with good sleep quality (4–11 months)
  • ●

    11–14 h with good sleep quality
  • ●

    10–13 h with good sleep quality



Integration
  • ●

    Meeting all the recommendations for PA, SB and SLP is associated with greatest health benefits

  • ●

    Preserving sufficient SLP while replacing SB with more moderate to vigorous PA can provide additional health benefits

PA: physical activity; SB: sedentary behavior; SLP; sleep; h: hour; MVPA: moderate to vigorous physical activity; ST: sedentary screen time.