- 著者
- Farah Hanan Fathihah Jaffar Khairul Osman Nur Hilwani Ismail Kok-Yong Chin Siti Fatimah Ibrahim
- 出版者
- Tohoku University Medical Press
- 雑誌
- The Tohoku Journal of Experimental Medicine (ISSN:00408727)
- 巻号頁・発行日
- vol.248, no.3, pp.169-179, 2019 (Released:2019-07-26)
- 参考文献数
- 50
- 被引用文献数
- 30
Extensive use of Wi-Fi has contributed to radiofrequency electromagnetic radiation (RF-EMR) pollution in environment. Various studies have been conducted to evaluate the effect of RF-EMR emitted by Wi-Fi transmitter on male reproduction health. However, there are conflicting findings between studies. Thus, this review aims to elucidate the possible effects of 2.45 GHz Wi-Fi exposure on both animal and human male reproductive system. A computerized database search performed through MEDLINE via Ovid and PUBMED with the following set of keywords: ‘Wi-Fi or WiFi or wireless fidelity or Wi-Fi router or WiFi router or electromagnetic or radiofrequency radiation’ AND ‘sperm or spermatozoa or spermatogenesis or semen or seminal plasma or testes or testis or testosterone or male reproduction’ had returned 526 articles. Only 17 studies conformed to pre-set inclusion criterion. Additional records identified through Google Scholar and reviewed article further revealed six eligible articles. A total of 23 articles were used for data extraction, including 15 studies on rats, three studies on mice, and five studies on human health. Sperm count, motility and DNA integrity were the most affected parameters when exposed to RF-EMR emitted by Wi-Fi transmitter. Unfortunately, sperm viability and morphology were inconclusive. Structural and/or physiological analyses of the testes showed degenerative changes, reduced testosterone level, increased apoptotic cells, and DNA damage. These effects were mainly due to the elevation of testicular temperature and oxidative stress activity. In conclusion, exposure towards 2.45 GHz RF-EMR emitted by Wi-Fi transmitter is hazardous on the male reproductive system.
- 著者
- Fatimah Ibrahim Siti A. Ahmad Park Jong Woo Wan Abu Bakar Wan Abas
- 出版者
- The Society of Physical Therapy Science
- 雑誌
- Journal of Physical Therapy Science (ISSN:09155287)
- 巻号頁・発行日
- vol.24, no.10, pp.1021-1024, 2012 (Released:2012-12-28)
- 参考文献数
- 22
- 被引用文献数
- 3 7
[Purpose] Salat is the prayer practiced by Muslims and it involves several physical motions, namely standing, bowing and prostrating, which can be considered as a form of slow moderate exercise. The purpose of this research was to investigate the activities of the upper body muscles and the body composition during Salat’s prostration and the child’s pose. [Subjects] Eight healthy male and female university students were recruited for this study. [Methods] The body composition of each subject was first measured. The subjects were then asked to perform Salat’s prostration motion followed by the child’s pose posture. Electromyographic (EMG) signals were recorded from the biceps brachii, triceps brachii, scapula muscle, and pectoralis major muscles. The signals were converted to root mean square values. The Mann-Whitney U non-parametric test was conducted to investigate the significance of differences in EMG mean values and body composition in both postures. [Results] The findings show that all the muscles were activated in both postures with the triceps brachii recording the highest value. For the triceps brachii, the prostration posture gave higher values. However, no significant difference was found in the body composition. [Conclusion] The prostration posture produces musculoskeletal effects similar to the child’s pose.
- 著者
- Mohd Khairuddin Mohd Safee Wan Abu Bakar Wan Abas Fatimah Ibrahim Noor Azuan Abu Osman Mohd Helmi Rizal Salahuddin
- 出版者
- The Society of Physical Therapy Science
- 雑誌
- Journal of Physical Therapy Science (ISSN:09155287)
- 巻号頁・発行日
- vol.24, no.6, pp.549-552, 2012 (Released:2012-08-22)
- 参考文献数
- 21
- 被引用文献数
- 8 18
[Purpose] This study investigated the activity of the rectus femoris (RF), biceps femoris (BF), tibialis anterior (TA) and gastrocnemius (Gas) muscles of healthy subjects during salat and specific exercises using surface electromyography (EMG). [Methods] A group of undergraduates aged between 19 to 25 years voluntarily participated in this study. For the assessment of the RF muscle, the subjects were asked to perform salat movement [standing to prostration (STP)] and squat exercise (SE) and for the BF, TA and Gas muscles, subjects were asked to perform salat (bowing) and the toe touching exercise (TTE). The electromyograms of the muscles were recorded and analyzed. [Result] The findings indicate that there were contractions of the muscles during the salat and exercises with difference EMG levels. Wilcoxon’s Rank Sum Test found a statistically no significant differences between salat and the specific exercises for RF, BF and Gas. For TA, the test revealed a statistically significant difference between salat and the specific exercise with a difference of 5.67%MVC. [Conclusion] Salat may be useful in warm up or in rehabilitation programs. This pilot study conducted initial research into the biomechanical responses of human muscles in various positions of salat.
- 著者
- Hazem Doufesh Fatimah Ibrahim Noor Azina Ismail Wan Azman Wan Ahmad
- 出版者
- The Society of Physical Therapy Science
- 雑誌
- Journal of Physical Therapy Science (ISSN:09155287)
- 巻号頁・発行日
- vol.25, no.2, pp.211-214, 2013 (Released:2013-03-22)
- 参考文献数
- 39
- 被引用文献数
- 2 7
[Purpose] This study reports the effects of the Muslim prayer, known as Salat, on heart rate (HR) and blood pressure (BP) while performing and miming the actions of Salat: standing, bowing, prostrating and sitting. [Subjects] Thirty Muslim subjects were asked to perform the actual and mime Salat. [Methods] HR and BP were measured using a Schiller AT-102 Electrocardiograph and an Omron SEM-1 Automatic Blood Pressure Monitor. [Results] The findings revealed that there was a significant difference in the HR of the subjects between performing and miming Salat. The standing and prostration positions of Salat produced the highest and the lowest HR, respectively. A lower HR may be of potential benefit to an individual’s health. The systolic and the diastolic BP decreased significantly after performance and mime of Salat, and a greater reduction in BP was observed during performance of Salat. [Conclusion] This is the first study of HR and BP in relation to Salat positions. The findings will encourage further studies to explore the benefits of Salat maneuvers for patients with cardiovascular diseases.