Impact of Exerc
Impact of Exercise Induced Muscle Damage on Target Shooting
Performance
Umid Karli
Abant Izzet
Baysal University, School of Physical Education and Sports, Bolu, 14280,
TURKIYE.
Abstract: The purpose of this study was to investigate the impact of
exercise induced muscle damage created by upper arm on target shooting
performance. Eleven healthy and moderately active males [(mean±SD) age:
21.91±2.66 years; stature: 175.33±4.83cm; body mass: 70.12± 6.83kg; body fat %:
11.20±3.83], who did not perform any high intensity physical training towards
upper body extremities during last 3 months, volunteered to participate in this
study. Target shooting performance for both arms were measured, following
assessment of serum CK activity and muscle soreness level using visual analogue
scale, before (baseline) and at 5thminute, 24th, 48th,
72nd, 96th and 120th hours after
muscle damaging exercise protocol. Two sets of 25 repetitions, totally 50
maximal eccentric contractions were performed with forearm flexors, as muscle
damage exercise protocol. Repeated measure ANOVA and Friedman test was used for
statistical analysis. Repeated measures ANOVA showed significant changes in
serum CK activity [F(5-50)= 40.028, p<0.01] and in target
shooting performance for both dominant [F(6-60)= 3.271, p<0.01]
and non-dominant [F(6- 60)= 3.136, p<0.01] arms, relevant with
time intervals. According to Friedman test, muscle soreness for both arms
changed significantly (p<0.01) within time intervals. Compared to baseline
values significant (p<0.05) changes were recorded following muscle damaging
exercise protocol regarding to serum CK activity, muscle soreness and shooting
performance. Consequently, the results of this study revealed that exercise
induced muscle damage affect target shooting performance negatively. The
respondents should be careful while adding unaccustomed exercises including
intense eccentric contractions during the process of training planning, in
sports which target shooting skills are important features.
[Karli
U. Impact of Exercise Induced Muscle Damage
on Target Shooting Performance. Life Sci J 2013;
10(1):3386-3392]. (ISSN: 1097-8135). http://www.lifesciencesite.com.
