Table 3.

Kinetic parameters of Ca²⁺ transients of different fibre types of soleus and extensor digitorum longus from adult mice

Fibre type	n	ΔF/F	10–90% rise time	Half-width	Decay time	Time constants (ms)		A1 (%)	A2 (%)
			(ms)	(ms)	(ms)	τ1	τ2
Group 1	17	0.61±0.05	1.64±0.05	19.12±1.85	68.1±3.41	3.33±0.13	52.48±3.92	25.92±2.31	74.08±2.31
Group 2	6	0.53±0.08	1.35±0.05	11.86±3.03	57.98±10.82	2.69±0.22	41.06±9.13	34.23±2.83	65.77±2.83
Group 3	5	0.61±0.06	1.18±0.06	4.62±0.31	19.47±2.02	1.74±0.06	12.88±1.93	39.06±3.21	60.94±3.21
Group 4	11	0.61±0.03	1.14±0.04	4.23±0.37	15.15±1.21	1.56±0.11	9.45±1.03	34.24±2.11	65.76±2.11
Group 1 vs. 2		P= 0.462	P= 0.002	P= 0.017	P= 0.025	P= 0.030	P= 0.059	P= 0.030	P= 0.030
Group 1 vs. 3		P= 0.695	P= 0.001	P= 0.001	P= 0.001	P= 0.001	P= 0.001	P= 0.030	P= 0.030
Group 1 vs. 4		P= 0.672	P= 0.000	P= 0.000	P= 0.000	P= 0.000	P= 0.000	P= 0.012	P= 0.012
Group 2 vs. 3		P= 0.715	P= 0.054	P= 0.006	P= 0.006	P= 0.006	P= 0.006	P= 0.273	P= 0.273
Group 2 vs. 4		P= 0.545	P= 0.013	P= 0.001	P= 0.001	P= 0.003	P= 0.001	P= 0.841	P= 0.841
Group 3 vs. 4		P= 0.733	P= 0.413	P= 0.193	P= 0.126	P= 0.027	P= 0.126	P= 0.308	P= 0.308

Values are mean±s.e.m. A1, amplitude of fast component of decay; A2, amplitude of slow component of decay. Groups as in Table 1. Comparisons were done using the Mann–Whitney test.