Transverse Strains in Muscle Fascicles during Voluntary Contraction: A 2D Frequency Decomposition of B-Mode Ultrasound Images

Table 1

Fourier coefficients for the medial gastrocnemius.

Parameter	MG
		−13.06 ± 0.20°	7.93 ± 0.19°	−1.4 ± 2.1°
	7.59 ± 1.05 N m	21.30 ± 1.91 N m	252.7 ± 3.4°
	1.00 ± 0.00	0.22 ± 0.02	29.7 ± 2.9°
	1.00 ± 0.00	0.017 ± 0.002	182.6 ± 9.2°
	17.10 ± 0.45°	5.34 ± 0.46°	215.0 ± 2.8°
	15.86 ± 0.27°	1.64 ± 0.14°	217.8 ± 3.6°
	1.00 ± 0.00	0.023 ± 0.003	286.7 ± 13.2°
	146.27 ± 4.72	7.21 ± 0.48	38.4 ± 4.3°

Values are shown as mean ± SEM () and are for the first harmonic of the Fourier series.