Skip Navigation LinksHome > August 2006 - Volume 20 - Issue 3 > THE RELATIONSHIP BETWEEN MAXIMAL REPETITION PERFORMANCE AND...
Journal of Strength & Conditioning Research:
ORIGINAL RESEARCH: PDF Only

THE RELATIONSHIP BETWEEN MAXIMAL REPETITION PERFORMANCE AND MUSCLE FIBER TYPE AS ESTIMATED BY NONINVASIVE TECHNIQUE IN THE QUADRICEPS OF UNTRAINED WOMEN.

DOURIS, PETER C.; WHITE, BENJAMIN P.; CULLEN, ROBERT R.; KELTZ, WILLIAM E.; MELI, JOHN; MONDIELLO, DAN M.; WENGER, DAVID

Collapse Box

Abstract

The purpose of this investigation was to establish a relationship between the number of repetitions an individual can complete at a predetermined load and their percentage of type II muscle fibers in their quadriceps. Subjects included 22 untrained women between the ages of 18 and 35. Day 1 consisted of noninvasive anthropologic testing, 1 repetition maximum (1RM) testing, and recording repetition performance at 70% 1RM. Day 2 consisted of isokinetic dynamometry to determine muscle fiber composition. Results were obtained and analyzed using the Pearson product correlation coefficient (r). The results demonstrated a fair-to-moderate relationship (Pearson r = -0.48, p = 0.02) that individuals with greater percentages of type II muscle fibers performed fewer repetitions at 70% 1RM. The results of this study demonstrate that muscle fiber type composition is an important variable to consider when designing training or rehabilitation programs.

(C) 2006 National Strength and Conditioning Association

 

Login

Article Tools

Share

Article Level Metrics

Search for Similar Articles
You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search.