Decay of force transients following active stretch is slower in older than young men: 1  support for a structural mechanism contributing to residual force enhancement in old age 2  3  4  Geoffrey A. Power 1 , Walter Herzog 1 , Charles L. Rice 2,3 5  6  7  8  1 Faculty of Kinesiology, Human Performance Laboratory, University of Calgary, Calgary, Alberta, 9  Canada 10  11  2 Canadian Centre for Activity and Aging, School of Kinesiology, Faculty of Health Sciences, The 12  University of Western Ontario, Canada 13  14  3 Department of Anatomy and Cell Biology, The University of Western Ontario, Canada 15  16  17  18  19  20  Short Communication 21  22  23  24  25  26  Running Title: Decay of force transients following stretch in old age 27  28  Word Count: 1992/2000 29  Keywords: aging, muscle, eccentric, residual force enhancement, stiffness 30  31  32  33  34  Correspondence: Geoffrey A Power PhD. 35  Human Performance Laboratory 36  University of Calgary 37  Faculty of Kinesiology 38  2500 University Drive NW 39  Calgary, AB, Canada T2N 1N4 40  E-mail: gapower@ucalgary.ca 41  Telephone: 403-220-4639 42