Table 3.

Shift table for the level of muscle strengthening (MS) before and during distance education.

		MS Days/Week during Distance Education								Total
		0	1	2	3	4	5	6	7
MS days/week before distance education	0	127 *	33	24	16	8	10	9	7	234
	1	112	150	48	31	13	10	6	6	376
	2	96	175	209	64	43	21	9	6	623
	3	64	108	119	186	40	33	11	7	568
	4	16	26	59	47	78	29	14	10	279
	5	22	14	38	40	27	84	7	14	246
	6	3	1	4	12	14	12	27	1	74
	7	3	2	3	10	7	4	3	35	67
Total		443	509	504	406	230	203	86	86	2467

Notes. MS: the level of muscle strengthening means the number of days/week doing muscle strengthening * not to do MS during and before distance education, bold: no changes in the level of exercise, i.e., MS days/week during distance education = MS days/week before distance education, light grey: increased MS level, i.e., MS days/week during distance education > MS days/week before distance education, dark grey: decreased MS level, i.e., MS days/week during distance education < MS days/week before distance education.