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R Shiri, H Nikbakht, M Gholami, Kh Ebrahim,
Volume 18, Issue 19 (7-2020)

Time under Tension of muscle is one of the variables of strength training that contributes to its adaptation. The present study was conducted the effects of six weeks of resistance training with the varying Time under Tension of muscle on VEGF and endosotene serum levels  in healthy young women. This study was conducted on 20 female students (22.65±2.03years) Subjects were randomly and equally assigned to two groups with a Time under Tension of 1s- 1s(Normal Speed Contraction) and 3s- 3s (slow Speed Contraction). The exercise load was the same in both groups and resistance training was done in a circular manner for six weeks, three days a week in eight stations. Blood samples were taken from the subjects to study  research variables before the training period and 48h after the last session of the training. Data were analyzed by covariance analysis at a significant level of P≤0.05. There was no significant difference between the serum levels of VEGF and endostein in both groups (P≥0.05). In the strength test, the  SSC group experienced increase power further. However, there was no difference between the two groups in indicators related to angiogenesis for six weeks and  most probably, for this indicator needed more training time, but  practice with more Time under Tension (3s- 3s) can lead to increase power further.

Mrs Sedigheh Nosrati Abarghoee, Mrs Fatemeh Nematian, Dr Roohangiz Norouzinia, Mrs Fatemeh Edalat, Mrs Dorrin Nikbakht,
Volume 21, Issue 25 (9-2023)

Nurses, especially nurses in the intensive care unit, experience significant job stress that can endanger their health and cause a decrease in their sleep quality and happiness, and as a result, the quality of care for patients, and considering that the working conditions of the nurses in the intensive care unit Especially, it is in a way that increases emotional pressure and sad mood. Therefore, this study was conducted with the aim of determining the effect of online Pilates exercise on the quality of sleep and happiness of nurses in the intensive care unit.
The study was a quasi-experimental type of pre-test-post-test with two intervention and control groups and was conducted on 70 female nurses with an average age of 30.14±3.26. The intervention was held online in 8 sessions (3 sessions per week, 50 minutes in the afternoon in the form of warm-up exercises, main exercises and cooling down). Data were collected using the Pittsburgh Sleep Quality and Oxford Happiness Questionnaires and analyzed with spss 23 software and chi-square, t-test, and Mann-Whitney tests. At the beginning of the study, there was no statistically significant difference between the two groups. But at the end of the intervention, the average score of total sleep quality (p=0.045) and happiness (p=0.0001) showed a significant improvement in the intervention group.To improve physical and mental health, improve the quality of life, sleep and happiness, classical Pilates exercise can be recommended to be included in daily programs.

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