التفاصيل البيبلوغرافية
| العنوان: |
MUSCLE DAMAGE AND METABOLIC RESPONSES TO REPEATED-SPRINT RUNNING WITH AND WITHOUT DECELERATION. |
| المؤلفون: |
MINAHAN, CLARE L., POKE, DANIEL P., MORRISON, JAIME, BELLINGER, PHILLIP M. |
| المصدر: |
Journal of Strength & Conditioning Research; Dec2020, Vol. 34 Issue 12, p3423-3430, 8p |
| مصطلحات موضوعية: |
ATHLETIC ability, BIOMARKERS, BIOMECHANICS, COMPARATIVE studies, CREATINE kinase, ENERGY metabolism, JUMPING, LACTATE dehydrogenase, LACTATES, SPRINTING, MYALGIA, MYOGLOBIN, SITTING position, TASK performance, TREADMILLS, COOLDOWN, BODY movement, TEAM sports, PRE-tests & post-tests, OXYGEN consumption, DESCRIPTIVE statistics, MUSCLE fatigue |
| مستخلص: |
This study aimed to determine whether repeated-sprint running with deceleration aggravates markers of muscle damage or delays the recovery of performance compared with repeated-sprint running without deceleration. Fourteen male team-sport athletes performed 2 randomly ordered testing sessions on a nonmotorized treadmill with one session requiring subjects to decelerate (TMd) within 4 seconds before stopping or immediately step to the side of the treadmill belt at the completion of each sprint (TMa). Peak and mean velocities, speed decrement, blood lactate concentrations, and oxygen uptake were monitored during the repeated-sprint running protocols. Countermovement vertical jump (CMJ) performance, perceived muscle soreness, sit-and-reach flexibility, plasma creatine kinase (CK), lactate dehydrogenase (LDH), and myoglobin (Mb) concentrations were quantified immediately before and after and 45 minutes, 24 and 48 hours after repeated-sprint running protocols. Although muscle damage was indicated by increases in CK, LDH, and Mb (p ≤ 0.05) in both groups, there was no significant effect of condition (TMa vs. TMd) on any of the measured performance or physiological variables (p > 0.05). The present study indicated that the removal of deceleration from repeated-sprint running on a nonmotorized treadmill has no effect on metabolism or performance during or after repeated-sprint running or markers of muscle damage. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
