Document Type
Thesis
Publication Date
1994
Disciplines
Biology
Advisor
Marcus Webster
Abstract
Electromyographic and force analysis of Pectoralis major and Latissimus dorsi muscles during a reverse punch demonstrated a significant positive correlationbetween the average force of individuals and their rank (p<0.01; r-squared=0.73). Also demonstrated was a positive correlation between the amount of EMG activity in the muscles studied and the force (for Pectoral: r-squared=0.757, pc0.05; for Latissimus: r-squared= 0.733, p<0.1). The relationship between punch duration and rank yielded insignificant results (for Pectoral: r-squared= 0.222, p<0.240; for Latissimus: r-squared=0.461, p<0.065). Precontact EMG activity and rank regression analysis demonstrated a significant positive correlation for both muscles (for Latissimus: p<0.005, r-squared=0.752; for Pectoral: p<0.006, r-squared=0.735). Post contact EMG activity and rank regression analysis also demonstrated a significant positive correlation for both muscles (for Latissimus: p<0.0.04, r-squared=0.773; for Pectoral: p<0.005, r-squared=0.760). A negative correlation between precontact EMG activity and punch duration was shown for both muscles (for Pectoral: -0.568; for Latissimus: -0.626). A negative correlation was between punch duration and force was shown for both muscles (for Pectoral: -0.559; for Latissimus: -0.715). A positive correlation between force and precontact EMG activity was demonstrated (for Pectoral: 0.757; for Latissimus: 0.733).
Copyright Statement
Available by permission of the author. Reproduction or retransmission of this material in any form is prohibited without expressed written permission of the author.
Recommended Citation
Conzemius, John J., "Electromyographic and Force Analysis of a Shotokan Karate Punching Technique" (1994). Honors Theses, 1963-2015. 786.
https://digitalcommons.csbsju.edu/honors_theses/786