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Cesar Cavinato Cal Abad,Ademir Manuel do Nascimento,Leandro Eziquiel dos Santos,Diego Figueroa,Pamella Ramona,Michele Sartori,Katia B. Scapini,Oscar Albuquerque,Ivana Cinthya Moraes-Silva,Hélio José C 한국운동재활학회 2017 JER Vol.13 No.3
The present study aimed to compare the effects of moderate-intensity continuous and high-intensity interval exercise training (ET) on exercise tolerance, cardiac morphometry and function, hemodynamic, and car-diac autonomic modulation in myocardial infarcted mice. Wild-type mice (WT) were divided into four groups: sedentary WT (S); WT myo-cardium infarction sedentary (IS); WT myocardium infarction under-went to moderate-intensity continuous ET (MICT), and WT myocardium infarction underwent to high-intensity interval ET (MIIT). After 60 days of descending coronary artery ligation, moderate-intensity continuous ET consisted of running at 60% of maximum, while the high-intensity in-terval training consisted of eight sprints of 4 min at 80% of maximum and a 4-min recovery at 40% of maximum. Both exercises were per-formed 1 hr a day, 5 days a week, during 8 weeks. Results demonstrated that IS showed elevated exercise tolerance, as well as decreased he-modynamic and heart function, and autonomic control. On the other hand, both programs of ET were equally effective to increase all param-eters, without further differences between the groups. In conclusion, the results of the present study showed that myocardial infarction leads to damage in both investigated strains and the two types of physical ex-ercise attenuated the major impairments provoked by myocardial in-farction in exercise tolerance, cardiac structure, cardiac function, he-modynamic and cardiac autonomic modulation.
Wanessa Blaschi,Paula A. Lunardelli,Luciana S.R. Marinho,Marilu C. Max,Gustavo M.G. Santos,Katia C. Silva-Santos,Fabiana A. Melo-Sterza,Hernan Baldassarre,Thales R. Rigo,Marcelo M. Seneda 대한수의학회 2014 Journal of Veterinary Science Vol.15 No.3
Synchronization of estrus and ovulation are of paramountimportance in modern livestock improvement programs. These methods are critical for assisted reproductiontechnologies, including artificial insemination and embryotransfer, that can increase productivity. In the current study,subcutaneous implants containing norgestomet were placedfor long (14 days), medium (9 days), and short (5 days)periods of time in 70 crossbred ewes undergoing fixed-timeartificial insemination. The resulting effects on estrussynchronization and conception rates were subsequentlyevaluated. Among the synchronized ewes, 85.7% (60/70)underwent estrus over a period of 72 h after progestagentreatment ceased. The shortest mean interval betweenwithdrawal of the device and onset of estrus (34.2 ± 8.9 h) wasobserved in the G14 days of P4 group (p < 0.05). Theconception rate of the G14 days of P4 group was statisticallyhigher than that of the other groups (83.3% vs. 60.9% vs. 47.8%; p < 0.05). In conclusion, 14 days of norgestomettreatment produced higher conception rates and a greaternumber of pregnancies at the beginning of the breeding season.