Changes in concentrations of tissue free radical marker and serum creatine kinase during the post-exercise period in rats

1996 ◽  
Vol 74 (5) ◽  
pp. 470-474 ◽  
Author(s):  
A. Frankiewicz-Jóźko ◽  
J. Faff ◽  
B. Sieradzan-Gabelska
2000 ◽  
Vol 25 (6) ◽  
pp. 419-429 ◽  
Author(s):  
Mark G. Arnett ◽  
Richard Hyslop ◽  
Carolyn A. Dennehy ◽  
Carole M. Schneider

The objective was to determine whether serum creatine kinase (CK) and serum CK MB activity following exercise-induced muscle damage activity differs among females of varying menarchial status and to determine whether there is a relationship between serum estradiol (E2) concentration, CK, and CK MB activity. Fifteen menarchial (M), 15 premenarchial (P), and 10 postmenopausal (PM) females participated in the study. Exercise consisted of eccentric hamstring contractions. Estradiol concentrations were significantly higher in M women (p = .0001; M, 125.0 ± 20.8 pg/mL, P, 54.6 ± 38.6 pg/mL, PM, 46.2 ± 34.6 pg/mL). Menarchial women had lower resting CK and CK MB activity and responded with a higher efflux of CK and CK MB post exercise (p = .0001). An inverse relationship was found between E2 concentration and baseline CK (p = .02) and CK MB activity (p = .006). No relationship existed between post exercise efflux of CK and CK MB and E2 concentration. At rest, E2 influenced CK and CK MB activity across menarchial levels. However, E2 did not significantly reduce the level of CK and CK MB activity following this intense bout of eccentric exercise. Key words: exercise-induced muscle damage, estradiol, menarhial, premenarchial, postmenopausal


Author(s):  
A. Moolchandani ◽  
M. Sareen

This study was carried out to assess the effects of draft load on serum creatine kinase and lactated ehydorgenase activities in mule. Five adult mules of 5 to 6 years of age were subjected to loading exercise (i.e. 10% draft load for 1 to 5 days and 20% draft load from 6th to 10th day). A highly significant (P<0.01) increase in serum LDH activities in response to 10% and 20% draft load exercise was observed while significant (P<0.05) increase at 10% draft load and highly significant (P<0.01) increase at 20% draft load was observed in CK activities.


Women ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 71-79
Author(s):  
Akemi Sawai ◽  
Risa Mitsuhashi ◽  
Alexander Zaboronok ◽  
Yuki Warashina ◽  
Bryan J. Mathis

Chronic menstrual dysfunction and low female sex hormones adversely affect muscular performance in women but studies in college athletes are scarce. A cohort of 18 Japanese, female college athletes at the University of Tsukuba, Japan, were recruited and studied over 3 weeks under 2 conditions. One group had normal menstrual cycling (CYC, 9 athletes) while the other had irregular cycles (DYS, 9 athletes). Hormones and creatine kinase (CK) were measured from blood under both rest (RE) and exercise (EX) conditions. Biceps femoris tendon stiffness was measured by myometry. No differences in age, height, weight, menarche age, or one-repetition maximum weight existed between the groups. The DYS group had persistently low levels of estrogen and progesterone. In the CYC group, the CK level significantly increased at each point immediately post-exercise and 24 h post-exercise compared to pre-exercise in Weeks 1 and 2, and significantly increased at 24 h post-exercise compared to pre-exercise status in Week 3. The DYS group was significantly different only between pre-exercise and 24 h post-exercise over all 3 weeks. The DYS group also suffered from higher biceps femoris tendon stiffness at 24 h post-exercise. Chronic menstrual irregularities in Japanese college athletes increase muscle damage markers in the bloodstream and muscle stiffness after acute strength training.


1991 ◽  
Vol 20 (6) ◽  
pp. 290-294
Author(s):  
R.E. Weller ◽  
R.L. Buschbom ◽  
S.L. Martell ◽  
J.F. Baer ◽  
C.A. Málaga ◽  
...  

Author(s):  
Maren Freigang ◽  
Claudia D. Wurster ◽  
Tim Hagenacker ◽  
Benjamin Stolte ◽  
Markus Weiler ◽  
...  

Author(s):  
Won Tae Bae ◽  
Jae Hui Kim ◽  
Eun Sil Park ◽  
Ji Hyun Seo ◽  
Jae Young Lim ◽  
...  

1976 ◽  
Vol 9 ◽  
pp. 237-240 ◽  
Author(s):  
J.C. Crawhall ◽  
G. Tolis ◽  
D. Roy

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