key: cord-0821903-h14wf9tr
authors: Carvalho, Vitor Oliveira; Gois, Caroline Oliveira
title: COVID-19 pandemic and home-based physical activity
date: 2020-05-27
journal: J Allergy Clin Immunol Pract
DOI: 10.1016/j.jaip.2020.05.018
sha: 933f80c72e1b006d2aa406300030bad26958c748
doc_id: 821903
cord_uid: h14wf9tr

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Vitor Oliveira Carvalho, PhD 7 home") can increase sedentary behavior and decrease level of physical activity, which has already 28 been linked to poor survival rates. 2 29

Conceptually, exercise training is a structured physical activity for a specific purpose, such 30 as a training to gain lower limbs strength and decrease the risk of falls in old people. Thus, 31

although exercise training provides important benefits, as showed by Nyenhuis et al, 1 

proper prescription to be safely and efficiently performed, even at home. Physical activity, on the 33 other hand, is "any bodily movement produced by skeletal muscles that results in energy 34 expenditure" 3 above 1.5 metabolic equivalent (MET), such as walking to work or performing 35 household chores. It is known that 1MET is equivalent to resting metabolism, or 1kcal/kg/hour or 36 3.5 mL/kg/min of oxygen consumption. 37

In this sense, understanding home-based physical activity, and not just exercise training, is 38 relevant to keep ourselves healthy. This text also shows that somebody may be already in intensity (how much this activity tires and expends energy) and duration (for how long this activity 44 is carried out). In general, the intensity of physical activity can be classified as light (<3 METs), 45 moderate (3 to 5.9 METs) or vigorous (> 6 METs). 5 Example 1: John (random name), 30 years old, 46 60 kg, has 2 children. During his morning activities, he gets up early and prepares breakfast (3.5 47 bathing the children are moderate-intensity physical activities (>3 METs), John, that morning, reached more than 30 min of moderate-intensity physical activity and he is in agreement with 51 WHO recommendations. 4 Example 2: John, the next day, bathed the dog (3.5 METs) for 15 min, 52 then danced (7.8 MET) and sang with his children for 20 minutes the songs they liked most and 53 after a break he decided to paint (4.5 METs) the walls of the room for about 20 min. 6 

Exercise and Fitness in the age of social 65 distancing during the COVID-19 Pandemic

Do the associations of sedentary behaviour with cardiovascular disease mortality and 69 cancer mortality differ by physical activity level? A systematic review and harmonised meta-70 analysis of data from 850 060 participants

Physical activity, exercise, and physical fitness: 74 definitions and distinctions for health-related research

WHO | World Health Organization

Compendium of Physical Activities: a second update of 82 codes and MET values