Albert M. Gordon

TL;DR: The variation of isometric tetanus tension with sarcomere length in single fibres from frog striated muscle has been re‐investigated with special precautions to ensure uniformity of sarcomeres length within the part of the fibre being studied.

TL;DR: Ca(2+) regulation of contraction in vertebrate striated muscle is exerted primarily through effects on the thin filament, which regulate strong cross-bridge binding to actin, and the physiological observations of steady-state and transient mechanical behavior are supported.

TL;DR: An apparatus is described by which the length of a selected part of an isolated muscle fibre can be held constant, giving isometric conditions, or alternatively its length can be measured while tension is held constant (isotonic).

TL;DR: Variations in activation properties account for functional differences between these muscle types in skeletal and cardiac muscle.

TL;DR: Increasing the force level increased calcium sensitivity in intact fibers showing that the relation between force and calcium is not unique, and suggesting a simple mechanism for the hysteresis.