Table 2.

Thin-filament-based intensity reflections

Group	SL (μm)	Condition	Second ALL	Sixth ALL	Seventh ALL
Control	2.70	Preactivation	0.047 ± 0.007	1	0.323 ± 0.015
		Activation	0.186 ± 0.009*	1.120 ± 0.028*	0.392 ± 0.031*
	>3.60	Preactivation	0.074 ± 0.005	1	0.252 ± 0.003
		Activation	0.150 ± 0.002*	0.946 ± 0.006*	0.236 ± 0.002
Patient	2.70	Preactivation	0.033 ± 0.007	1	0.403 ± 0.015
		Activation	0.118 ± 0.008*,#	1.019 ± 0.012#	0.407 ± 0.013
	>3.60	Preactivation	0.043 ± 0.010	1	0.359 ± 0.011
		Activation	0.129 ± 0.007*	1.004 ± 0.020	0.357 ± 0.016

Values are normalized to total intensity of sixth ALL in absence of calcium. All values are means ± se. SL, sarcomere length.

^*P <0.05 vs. preactivation for same group (control or patient).

^#P <0.05 vs. control for same condition (preactivation or activation).