spacer gif spacer gif spacer gif spacer gif spacer gif
QUICK SEARCH:   [advanced]


spacer gif
     Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents    

Right arrow Help viewing high resolution images
Right arrow Return to article

(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.


Figure 4


Fig. 4. Work and ATP utilization vary with respect to the phase of Ca2+ activation ({phi}Ca). Data points (connected with a line) represent average values (mean ± s.d.) from 245 individual work loops at a duty cycle ({delta}Ca) of 0.5. The {phi}Ca values producing maxima and minima varied for work (A) and ATP (B), therefore yielding a unique {phi}Ca that maximized efficiency (ratio of work to ATP; C). Strain amplitude {epsilon} was 0.05 (left) and 0.025 (right), and primarily affected work magnitude. Note the difference in ordinate scales between the left and right panels in A and C when {epsilon}=0.05 versus 0.025. Mechanical parameters for the filaments and cross-bridges are listed in Fig. 2.





Right arrow Return to article