Table 2.

Age- and sex-specific LMS values and percentiles for 20-m PACER (reps)

	L	M	S	5th	10th	25th	50th	75th	90th	95th
Boys (year)
13	0.569	38.4	0.489	13.1	17.7	26.6	38.4	52.0	65.6	74.5
14	0.607	43.9	0.472	15.4	20.7	30.8	43.9	58.7	73.5	82.9
15	0.651	46.4	0.464	16.2	21.9	32.7	46.4	61.7	76.7	86.2
16	0.704	47.2	0.467	15.6	21.7	33.1	47.2	62.7	77.7	87.2
17	0.733	47.9	0.475	15.0	21.4	33.3	47.9	63.9	79.3	88.9
18	0.737	47.5	0.488	14.1	20.5	32.6	47.5	63.8	79.4	89.2
Girls (year)
13	0.313	23.5	0.484	9.4	11.8	16.7	23.5	32.1	41.5	47.9
14	0.301	24.2	0.498	9.5	11.9	17.0	24.2	33.3	43.4	50.3
15	0.328	23.6	0.509	8.9	11.3	16.4	23.6	32.7	42.7	49.5
16	0.360	23.4	0.524	8.3	10.8	16.0	23.4	32.6	42.7	49.6
17	0.355	24.3	0.552	8.1	10.7	16.3	24.3	34.4	45.6	53.3
18	0.316	26.1	0.588	8.2	11.0	17.1	26.1	37.9	51.3	60.7

L, skewness; M, median; S, standard deviation; PACER, progressive aerobic cardiovascular endurance run.