Table 4.

Percent differences between younger and older women (mean ± standard error)

	Younge r	Older	Reactance (X)		Resistance (R)		Phase (P)
	Numbe r	Numbe r	% Diff	p value	% Diff	p value	% Diff	p value
Mean Total Body	18	18	−12 ± 6	0.07	−8 ± 7	0.31	−2 ± 12	0.89
Mean Upper Extremity	8	13	−17 ± 6	0.03	12 ± 10	0.22	−18 ± 11	0.12
Deltoid	8	13	−16 ± 7	0.07	3 ± 9	0.74	−13 ± 13	0.34
Biceps brachii	8	13	−15 ± 8	0.11	17 ± 12	0.17	−19 ± 17	0.30
Brachioradialis	8	13	−13 ± 8	0.16	10 ± 14	0.49	−13 ± 15	0.41
Triceps brachii	8	13	−26 ± 6	0.01	7 ± 11	0.52	−25 ± 9	0.02
Forearm extensors	8	13	−14 ± 8	0.12	−11 ± 10	0.32	−2 ± 15	0.92
Forearm flexors	8	13	−22 ± 6	0.01	23 ± 15	0.11	−30 ± 11	0.02
Extensor indicis	8	13	−15 ± 9	0.12	−2 ± 8	0.84	−10 ± 12	0.47
Mean Lower Extremity	10	5	−19 ± 11	0.16	−21 ± 7	0.02	4 ± 12	0.76
Tensor fascia lata	10	5	−26 ± 11	0.06	−9 ± 13	0.54	−17 ± 7	0.06
Biceps femoris	10	5	−18 ± 13	0.24	−30 ± 8	0.01	13 ± 18	0.47
Vastus lateralis	10	5	−17 ± 14	0.28	−19 ± 7	0.04	−5 ± 15	0.77
Vastus medialis	10	5	−26 ± 11	0.07	−11 ± 8	0.26	−15 ± 13	0.28
Tibialis anterior	10	5	−12 ± 11	0.34	−27 ± 8	0.02	21.6 ± 15	0.15
Medial gastroc.	10	5	−20 ± 12	0.17	−26 ± 8	0.02	−3 ± 18	0.89
Extensor hallucis	10	5	−16 ± 17	0.39	−33 ± 6	5E-04	20 ± 19	0.30

Significant differences shown in bold.