Thursday-Abstracts

Thursday, May 30, 2013
S234 Vol. 45 No. 5 Supplement
RPE despite contraction mode (ECC or CON). Validation of the relation between
RPE and muscle activation was further supported. Results suggest ECC loads ranging
from 30-70% of 1-RM are altered by time under tension. This preliminary evidence
reveals how time under tension impacts effort during ECC loads for the knee extension
exercise.
1224 Board #169 May 30, 9:00 AM - 10:30 AM
relationship Between student and Observer rPE during
Fitness activities in a Physical Education setting
Kristen M. Lagally, FACSM, Kim Walker-Smith, Deborah A.
Garrahy, Skip M. Williams, Mary L. Henninger. Illinois State
University, Normal, IL.
(No relationships reported)
PurPOsE: The purpose of this investigation was to examine the relationship between
ratings of perceived exertion (RPE) reported by students and RPE estimated by a
trained observer during physical education class.
METhOds: As part of the fitness unit of physical education class, students in grades
six through eight (N=78; Mean age = 12.3+.88 years) performed cardiovascular and
muscular endurance exercises in a circuit format. Each exercise lasted between two
and three minutes. Heart rate from a Polar monitor, and both overall body (RPE-O) and
active muscle RPE (RPE-AM) from mode-specific OMNI-Child scales were recorded
by the students. An observer trained in physical education separately estimated overall
body and active muscle RPE of students using an exertional observation technique. All
measures were recorded at the end of the exercise bout.
rEsuLTs: Relationships were examined using bivariate correlation coefficients.
For the cardiovascular exercise, correlations between observer and student ratings
were r=0.47 (p