title: The use of ambulatory EMG monitoring to measure compliance with lumbar strengthening exercise.
abstract: This study validates the use of ambulatory EMG monitoring as a measure of exercise compliance. The model rehabilitative exercise used was the Prone Back Extension. Thirty-two undergraduate volunteers were videorecorded as they performed the exercise alone in a closed room. The correlation between a direct observation count of the number of repetitions and an independent EMG-based count was .95. EMG amplitude was examined by repetition and gender with regression and ANOVA. There were significant gender differences in the amplitude of EMG across repetitions. There were no significant differences by gender in the declining slope of amplitude across repetitions. This slope may represent a typical "fatigue" curve. Thus, not only the occurrence but also the intensity of exercise can be quantified.
authors.affiliation: Department of Psychology, Illinois Institute of Technology, Chicago 60616.
authors.forename: J E
authors.initials: JE
authors.lastname: Cassisi
authors.forename: K
authors.initials: K
authors.lastname: Sexton-Radek
authors.forename: M
authors.initials: M
authors.lastname: Castrogiovanni
authors.forename: D
authors.initials: D
authors.lastname: Chastain
authors.forename: M E
authors.initials: ME
authors.lastname: Robinson
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D004576:Electromyography / Q000379:methods*; D005081:Exercise Therapy / Q000379:methods*; D005260:Female; D006801:Humans; D008161:Lumbosacral Region; D008297:Male; D008991:Monitoring, Physiologic; D010349:Patient Compliance; D012727:Sex Characteristics; D014743:Videotape Recording