Table 1.

Subject characteristics for young, old and oldest old

	Young (12 F/22 M)			Old (13 F/98 M)			Oldest old (22 F/30 M)
	Average ± SD	Min–max	N	Average ± SD	Min–max	N	Average ± SD	Min–max	N
Age (years)	25 ± 4	20–36	34	71 ± 4	60–79	111	86 ± 3	81–97	52
Height (m)	1.77 ± 0.10	1.57–1.93	34	1.77 ± 0.08	1.55–1.95	111	1.70 ± 0.11	1.42–1.88	40
Weight (kg)	75 ± 15	53–111	34	81 ± 13	56–109	111	72 ± 14	45–98	40
BMI (kg/m2)	23.9 ± 3.1	19.0–30.4	34	25.7 ± 3.3	18.9–32.5	111	24.6 ± 3.3	18.7–33.2	40
LBMleg (kg)*, #	22 ± 4	17–30	22	20 ± 3	12–26	53	16 ± 3	9–21	33
CSAquad (cm2)*, #	73 ± 15	55–99	7	62 ± 12	36–91	65	45 ± 11	26–69	32
Isometric MVC (Nm)*, #	272 ± 62	186–364	22	188 ± 38	85–278	93	126 ± 42	22–205	34
Isokinetic MVC (Nm)*, #	307 ± 67	200–425	22	207 ± 46	75–313	94	109 ± 45	18–219	35
Isometric RFD (Nm/s)*	2322 ± 839	1135–4048	22	1259 ± 472	251–2746	93	1126 ± 531	692–2295	8

Note: Data are shown as means ± SD with range and number of subjects represented in each measurement. LBM_leg, CSA_quad, MVCs and RFD were compared using one‐way analyses of variance. Subject characteristics separated by gender and from each study can be found in Supporting Information S1 and S2, respectively. Abbreviations: BMI, body mass index; CSA_quad, quadriceps cross‐sectional area; F, female; LBM_leg, leg lean mass; M, male; MVC, maximal voluntary contraction; RFD, rate of force development.

^* P < 0.05 between young and old.

^# P < 0.05 between old and oldest old.