Article
Sport Sciences
Katherine Brooke-Wavell, Dawn A. Skelton, Karen L. Barker, Emma M. Clark, Sarah De Biase, Susanne Arnold, Zoe Paskins, Katie R. Robinson, Rachel M. Lewis, Jonathan H. Tobias, Kate A. Ward, Julie Whitney, Sarah Leyland
Summary: Exercise and physical activity can improve bone strength and reduce the risk of falls in people with osteoporosis. Resistance and impact exercise, activities to improve strength and balance, and spinal extension exercise are recommended to optimize bone strength, reduce falls, and improve posture. The benefits of physical activity generally outweigh the risks.
BRITISH JOURNAL OF SPORTS MEDICINE
(2022)
Review
Endocrinology & Metabolism
Anna Oniszczuk, Agnieszka Kaczmarek, Mateusz Kaczmarek, Maria Cialowicz, Ersan Arslan, Ana Filipa Silva, Filipe Manuel Clemente, Eugenia Murawska-Cialowicz
Summary: Osteoporosis is a disease characterized by low bone mass and abnormal bone tissue microarchitecture. Exercise can inhibit the secretion of anti-anabolic protein and increase bone mineral density, thus positively impacting osteoporosis.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Hasmik Jasmine Samvelyan, John Cummings Mathers, Timothy Michael Skerry
Summary: The study suggests that fasting/feeding interventions can enhance bone response to mechanical loading in young mice, but not in older mice. The endocrine responses to feeding timing differ between older and young mice, which may affect bone adaptation to loading.
Article
Biochemistry & Molecular Biology
Francesca Maffei, Alice Masini, Sofia Marini, Angela Buffa, Nazzarena Malavolta, Pasqualino Maietta Latessa, Laura Dallolio
Summary: This study investigated the effect of an adapted physical activity program on postmenopausal women with osteoporotic vertebral fractures. The program did not affect the serum concentrations of bone turnover biomarkers, but women in the exercise group showed significant improvement in functional capacity and a decrease in the risk and fear of falls.
Article
Sport Sciences
Horacio Sanchez-Trigo, Carol Maher, Job G. Godino, Borja Sanudo
Summary: This study evaluated the effects of a non-supervised exercise program delivered and monitored through wearable technology and an mHealth app on bone mineral density (BMD). The intervention group showed significant improvements in BMD and physical fitness measures compared to the control group, suggesting the potential of this intervention for osteoporosis prevention.
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2023)
Article
Endocrinology & Metabolism
Ji Hyun Lee, JooYong Park, Jung Hee Kim, Ji-Yeob Choi, Hyung Jin Choi, Eu Jeong Ku, A. Ram Hong, Chan Soo Shin, Nam H. Cho
Summary: This Korean prospective cohort study found that decreasing waist circumference and lean muscle mass loss were significant risk factors for hip bone loss in both men and women. Other factors may have sex-specific or age-specific effects on hip bone loss. None of the genetic factors tested were associated with hip bone loss after multiple testing adjustments, indicating that modifiable factors may play a larger role in determining bone health.
Review
Endocrinology & Metabolism
Xinyu Chang, Sheng Xu, Hao Zhang
Summary: This article summarizes the mechanisms of exercise on osteoporosis and provides new proposals for the prevention and treatment of osteoporosis.
FRONTIERS IN ENDOCRINOLOGY
(2022)
Article
Endocrinology & Metabolism
Florencio Diniz-Sousa, Lucas Veras, Giorjines Boppre, Vitor Devezas, Hugo Santos-Sousa, John Preto, Leandro Machado, Joao Paulo Vilas-Boas, Jose Oliveira, Helder Fonseca
Summary: Our study found that gravitational loading only decreased during the first month after surgery and remained stable thereafter, and these changes do not seem to explain BS-induced bone loss. The association between weight and bone loss seems to result from other physiological aspects, such as fat and lean mass loss, rather than from gravitational loading decrease.
Article
Engineering, Biomedical
Xi Chen, Yasuko Moriyama, Yoko Takemura, Maho Rokuta, Yasunori Ayukawa
Summary: This study aimed to evaluate the influence of estrogen deficiency and mechanical loading on bone around osseointegrated dental implants in a rat jaw model. The results showed that estrogen deficiency could affect the long-term stability of implants, while mechanical loading could attenuate the negative effects of estrogen deficiency on bone formation and osseointegration.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2021)
Article
Nutrition & Dietetics
Mariangela Rondanelli, Milena Anna Faliva, Gaetan Claude Barrile, Alessandro Cavioni, Francesca Mansueto, Giuseppe Mazzola, Letizia Oberto, Zaira Patelli, Martina Pirola, Alice Tartara, Antonella Riva, Giovanna Petrangolini, Gabriella Peroni
Summary: This review evaluates the ideal dietary approach to reduce bone mineral density loss and suggests a food pyramid for osteopenia/osteoporosis patients. The pyramid emphasizes daily consumption of carbohydrates, fruits, vegetables, light yogurt, skim milk, extra virgin olive oil, and calcium water. Weekly portions include fish, white meat, legumes, eggs, cheeses, and red/processed meats. The pyramid also highlights the need for personalized supplementation and identifies certain foods to be avoided. Additionally, regular aerobic and resistance exercises are recommended.
Review
Physiology
Wenlai Cui, Dong Li, Yueshuai Jiang, Yang Gao
Summary: This study aims to analyze the effects of different exercise doses on lumbar spine and femoral neck bone mineral density (BMD) in individuals with osteoporosis. A systematic review was conducted, and 32 studies involving 2005 participants were included in the analysis. The results suggest that exercise interventions with high adherence to ACSM recommendations are more effective in improving BMD compared to interventions with low or uncertain adherence.
FRONTIERS IN PHYSIOLOGY
(2023)
Article
Endocrinology & Metabolism
Kun-Hui Chen, Chen-Ming Su, Wei-Ju Liu, Huey-En Tzeng, Chia-Lin Lee, Chun-Hao Tsai
Summary: This study investigates the association between physical activity, sleep duration, and osteoporosis in Taiwanese adults. The findings emphasize the joint role of sleep duration and physical activity in the prevention of osteoporosis, with individuals who engage in high physical activity and have longer sleep hours showing the lowest risk of osteoporosis.
OSTEOPOROSIS INTERNATIONAL
(2023)
Article
Endocrinology & Metabolism
L. E. Flores, S. Nelson, N. Waltman, K. Kupzyk, J. Lappe, L. Mack, L. D. Bilek
Summary: This study found that bone structure in post-menopausal women is closely related to levels of physical activity. Increasing physical activity can improve bone structure, particularly in the lower leg.
OSTEOPOROSIS INTERNATIONAL
(2022)
Review
Endocrinology & Metabolism
Keyvan Hejazi, Roya Askari, Martin Hofmeister
Summary: This study aimed to evaluate the effects of physical exercise on bone mineral density in postmenopausal women. The meta-analysis found that exercise training significantly increased bone mineral density in the femoral neck, lumbar spine, and trochanter, but not in total body and total hip. These findings suggest that exercise training may improve bone mineral density in older postmenopausal women, specifically in specific areas of the skeleton.
ARCHIVES OF OSTEOPOROSIS
(2022)
Article
Endocrinology & Metabolism
William D. Leslie, Heenam Goel, Neil Binkley, Eugene McCloskey, Didier Hans
Summary: Lumbar spine trabecular bone score (TBS) is a bone mineral density (BMD)-independent risk factor for fracture, but its sensitivity to technical factors and oral antiresorptive therapies is limited. This study analyzed TBS changes over time and in response to osteoporosis treatment, and found that TBS is strongly affected by technical factors and has little effect on monitoring response to antiresorptive treatment. Therefore, the current version of the TBS algorithm has limited usefulness in untreated individuals or routine clinical practice.
JOURNAL OF BONE AND MINERAL RESEARCH
(2023)
Article
Engineering, Electrical & Electronic
David Rotshild, Amir Abramovich
IET MICROWAVES ANTENNAS & PROPAGATION
(2019)
Article
Engineering, Electrical & Electronic
D. Rozban, A. Aharon, L. Kahana, A. Abramovich, Y. Yitzhaky, H. Altan, N. S. Kopeika
IEEE PHOTONICS TECHNOLOGY LETTERS
(2019)
Article
Optics
Avihai Aharon, Daniel Rozban, Moti Ben-Laish, Amir Abramovich, Yitzhak Yitzhaky, Natan S. Kopeika
Article
Engineering, Electrical & Electronic
Moti Ben-Laish, Daniel Rozban, Avihai Aharon, Amir Abramovich, Yitzhak Yitzhaky, Natan Kopeika
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
(2020)
Article
Computer Science, Information Systems
Lidor Kahana, Daniel Rozban, Moshe Gihasi, Amir Abramovich, Yitzhak Yitzhaky, Natan Kopeika
Article
Computer Science, Information Systems
Asemahegn Wudu, Daniel Rozban, Amir Abramovich
Article
Computer Science, Information Systems
David Rotshild, Efraim Rahamim, Amir Abramovich
Article
Computer Science, Interdisciplinary Applications
David Rotshild, Amir Abramovich
Summary: This paper presents a new reconfigurable metasurface high-resolution steering reflector for K-band, achieving continuous tuning using varactor diodes. The design considerations, reflection simulations, and measurements of a resonant unit cell at K-band are discussed, along with the reflection steering method and phase calibration. Experimental results validate the reflector's performance with large-angle steering, high resolution, and wide-incident-angular-range abilities across various frequencies in K-band.
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING
(2021)
Article
Computer Science, Information Systems
David Rotshild, Amir Abramovich
Summary: This paper presents a continuously reconfigurable metasurface reflector using unit cell mushroom geometry integrated with a varactor diode for improved quality of service in satellite communication. The design and analysis of unit cell parameters, losses mechanisms, and reflection properties were discussed, along with the demonstration of reflection phase and absorption calibration at various operating frequencies. Additionally, considerations for design trade-offs, manufacturing limitations, and beam-steering simulations were shown.
Article
Chemistry, Analytical
Amir Abramovich, Yossi Azoulay, David Rotshild
Summary: This study presents a proof of concept for a new real-time metasurface sensor for micropoison monitoring in aqueous solutions. The sensor consists of a perfect absorber metasurface and a gold nanoparticle layer on its front side. The resonance frequency shift caused by the presence of the micropoison was measured using a frequency-domain terahertz spectroscopy system. The metasurface sensor, fabricated using a double-sided FR4 substrate printed board circuit, showed significantly increased sensitivity by adding a gold nanoparticle layer to the gap of the double split rectangular resonator on its front side.
Article
Chemistry, Multidisciplinary
Efi Rahamim, David Rotshild, Amir Abramovich
Summary: In this study, a new concept for a Ka-band 5G communication tunable reflector metasurface is proposed, showing significant improvements in beam steering and bandwidth performance. The stripes configuration design achieved better directionality, gain, SLL, and bandwidth performance.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Arun Ramachandra Kurup, Daniel Rozban, Lidor Kahana, Amir Abramovich, Yitzhak Yitzhaky, Natan Kopeika
Summary: This study demonstrates an elementary method for MMW detection using GDD-LTF combination, leading to performance enhancement of sensors in MMW/THz imaging systems. Inserting a NIR long-pass filter in the experiment improves the performance parameters of the detector element.
APPLIED SCIENCES-BASEL
(2021)
Article
Crystallography
David Rotshild, Daniel Rozban, Efi Rahamim, Asaf Barom, Rotem Yosef, Liel Bhanam, Amir Abramovich
Summary: This paper presents a novel method for simplifying metasurface reconfiguration using a PIN photodiode as a tuning element. By projecting the desired image on the metasurface's backside, the PIN photodiodes can be used to reconfigure the metasurface, enabling control of the reflection phase and manipulation of the reflection beam.
Proceedings Paper
Engineering, Electrical & Electronic
Wudu Asemahegn (Asi), Rozban Daniel, Abramovich Amir
2019 IEEE INTERNATIONAL CONFERENCE ON MICROWAVES, ANTENNAS, COMMUNICATIONS AND ELECTRONIC SYSTEMS (COMCAS)
(2019)
Proceedings Paper
Engineering, Electrical & Electronic
Lidor Kahana, Daniel Rozban, Yitzhak Yitzhaky, Natan S. Kopeika, Amir Abramovich
2019 IEEE INTERNATIONAL CONFERENCE ON MICROWAVES, ANTENNAS, COMMUNICATIONS AND ELECTRONIC SYSTEMS (COMCAS)
(2019)