Table 1.

Overview of muscle data used in fits, Fig. 8

First author name	Source	Number of data points	Species	Muscle	Fiber preparation	Temperature	Stimulus application	Sarcomere reference length	Maximum tension of preparation	CSA of preparation	Remarks
Balnave	(9), Fig. 2	20	mouse	flexor brevis	intact	22°C	electrical	≈2.85 μm	≈344 kPa	≈1000 μm2	10 mM caffeine
Brown	(10), Fig. 3 c	25	cat	caudofemoralis	whole muscle	37°C	electrical	2.4–2.5 μm	not given	not given	–
deBeer	(11), Fig. 6 b	21	rabbit	gracilis	skinned	20°C	calcium	≈2.4 μm	≈100 kPa	≈3300 μm2	I ≈ 0.16 M
deBrito	(12), Fig. 3	100	human	vastus lateralis	in vivo muscle	37°C	voluntary (EMG)	not given	not given	not given	–
Gordon	(5), Figs. 2, 3, 5	66	frog	semitendinosus	intact	20°C	electrical	≈2.1 μm	≈265 kPa	not given	max contraction
Guschlbauer (a) and (b)	(13), Fig. 9 a/b	65/84	stick insect	extensor tibiae	whole muscle	20°C –22°C	electrical	not given	≈96 kPa	1.9 mm2	extreme examples
Morgan	(14), Fig. 1	24	cat	soleus	whole muscle	38°C	electrical	≈2.45 μm	34 N/CSA	not given	–
Roszek	(15, Fig. 3)	70	rat	gastrocnemius medialis	intact	27°C	electrical	≈2.3 μm	≈10 N/CSA	not given	–
Stephenson	(16), Fig. 3	40	rat	extensor digitorum longus	skinned	22°C –25°C	calcium	2.5–2.6 μm	not given	not given	I ≈ 0.23 M
Stienen	(17), Fig. 4	28	frog	ileofibularis	skinned	5°C	calcium	<2 μm	0.8 mN/CSA	not given	I ≈ 0.16 M
Zuurbier	(18), Fig. 2	76	rat	gastrocnemius medialis	intact	27°C	electrical	≈2.3 μm	≈307 kPa	not given