Muscle dataset

Contraction of heart muscle sections

The Muscle data frame has 60 rows and 3 columns.

Format

This data frame contains the following columns:

• Strip: an ordered factor indicating the strip of muscle being measured.
• conc: a numeric vector giving the concentration of CaCl2
• length: a numeric vector giving the shortening of the heart muscle strip.

Details

Baumann and Waldvogel (1963) describe data on the shortening of heart muscle strips dipped in a $CaCl_2$ solution. The muscle strips are taken from the left auricle of a rat's heart.

Source

Baumann, F. and Waldvogel, F. (1963), La restitution pastsystolique de la contraction de l'oreillette gauche du rat. Effets de divers ions et de l'acetylcholine, Helvetica Physiologica Acta, 21 .