Table 4.

Physical activity by body image perception among normal weight high school students

	Under-estimation	Correct estimation	Over-estimation	Total	P-value
	(n = 5,990)	(n = 9,387)	(n = 4,887)	(n = 20,264)
Doing physical activity for ≥ 60 min during the past 7 days
None	30.5 ± 0.7	37.1 ± 0.7	45.1 ± 0.8	37.0 ± 0.6	<0.001
1–2 days	35.8 ± 0.7	35.3 ± 0.5	34.6 ± 0.7	35.3 ± 0.4
3–4 days	20.1 ± 0.6	15.8 ± 0.4	12.9 ± 0.5	16.4 ± 0.4
5–6 days	8.2 ± 0.4	6.9 ± 0.3	5.0 ± 0.3	6.8 ± 0.2
Daily	5.4 ± 0.3	4.9 ± 0.3	2.5 ± 0.2	4.5 ± 0.2
Doing vigorous exercise during the past 7 days
None	21.4 ± 0.7	28.5 ± 0.7	36.1 ± 0.8	28.2 ± 0.6	<0.001
1–2 days	42.4 ± 0.7	41.2 ± 0.5	42.7 ± 0.8	41.9 ± 0.4
3–4 days	22.4 ± 0.6	17.7 ± 0.5	13.6 ± 0.6	18.2 ± 0.4
≥5 days	13.8 ± 0.5	12.5 ± 0.5	7.6 ± 0.4	11.7 ± 0.4
Doing muscle strengthening exercise during the past 7 days
None	39.8 ± 0.8	51.0 ± 0.9	65.4 ± 0.8	51.0 ± 0.8	<0.001
1–2 days	28.6 ± 0.6	26.4 ± 0.6	21.8 ± 0.7	26.0 ± 0.5
3–4 days	16.3 ± 0.5	11.4 ± 0.4	7.6 ± 0.4	12.0 ± 0.3
≥5 days	15.2 ± 0.5	11.3 ± 0.4	5.1 ± 0.3	11.0 ± 0.4
Walking for ≥ 10 min during the past 7 days
None	5.8 ± 0.3	5.6 ± 0.3	6.2 ± 0.3	5.8 ± 0.2	<0.001
1–2 days	10.2 ± 0.4	11.7 ± 0.4	12.4 ± 0.5	11.4 ± 0.3
3–4 days	10.8 ± 0.5	12.8 ± 0.4	13.5 ± 0.5	12.4 ± 0.3
5–6 days	18.8 ± 0.5	20.8 ± 0.5	21.8 ± 0.6	20.4 ± 0.3
Daily	54.4 ± 0.8	49.2 ± 0.7	46.0 ± 0.7	50.0 ± 0.5

Weighted % ± SE