Limited Range-of-Motion Lumbar Extension Strength Training
Document Type
Article
Publication Date
1-1992
Publication Title
Medicine and Science in Sports and Exercise
Keywords
Back pain / physiopathology, exercise therapy, lumbar vertebrae / physiopathology, physical education and training
Abstract
The purpose of this study was to evaluate the effect of limited range-of-motion (ROM) resistance training on the development of lumbar extension strength through a 72 degrees ROM. Thirty-three men and 25 women (age = 30 +/- 11 yr) were randomly assigned to one of three training groups or a control group (C; n = 10) that did not train. Training was conducted once per week for 12 wk and consisted of one set of 8-12 repetitions of variable resistance lumbar extensions until volitional fatigue. Group A (n = 18) trained from 72 degrees to 36 degrees of lumbar flexion; group B (n = 14) from 36 degrees to 0 degree of lumbar flexion; and group AB (n = 16) from 72 degrees to 0 degree of lumbar flexion. Prior to and after training, isometric lumbar extension torque was assessed at 72 degrees, 60 degrees, 48 degrees, 36 degrees, 24 degrees, 12 degrees, and 0 degree of lumbar flexion. Analysis of covariance showed that groups A, B, and AB increased lumbar extension torque (P less than or equal to 0.05) at all angles measured when compared with C. The greatest gains in torque were noted for groups A and B in their respective ranges of training but A and B did not differ from AB (P greater than 0.05) at any angle. These data indicate that limited ROM lumbar extension training through a 36 degrees ROM is effective for developing strength through 72 degrees of lumbar extension.
Recommended Citation
Graves, James PhD; Pollock, Michael L.; Leggett, Scott H.; Carpenter, David M.; Fix, C K.; and Fulton, Michael N., "Limited Range-of-Motion Lumbar Extension Strength Training" (1992). Department of Exercise, Health and Sport Science. 80.
https://digitalcommons.usm.maine.edu/sportscience/80