Unlabelled: The effect of electro-motor stimulation (EMS) upon the increase in power production of the tibialis anterior muscle (TA) of healthy individuals in both the maximally stretched (ST group) and shortened (SH group) positions was investigated. The effect of cross-education upon the contralateral muscle was also examined. EMS with a frequency of 50 hertz, a duration of 0.2 miliseconds, and a rectangular wave was applied for ten seconds with a ten-second interval and repeated ten times per day for six weeks. The ST group gained significantly 9.4%, 15.5%, and 16.4% after two, four, and six weeks of stimulation, respectively, while the SH group also showed a significant gain of 5.1%, 8.3%, and 3.0%. When comparing the two groups at the end of the six-week period the ST group's gain was significantly greater. The increase of power production of the unstimulated TA was 5.5%, 8.0%, and 4.3% in the ST group, which was significant at the end of the second and fourth week of stimulation. The SH group, however, registered a non-significant increase of -2.7%, 1.8%, and -1.5%. Comparison between the two groups showed a significant increase in the power production of the unstimulated TA in the ST group commencing the second week.
Conclusion: EMS of the TA in the maximally stretched position is a more effective way to gain strength.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
A parallel bioreactor strategy to rapidly determine growth-coupling relationships for bioproduction: a mevalonate case study.
Biotechnol Biofuels Bioprod
January 2025
Manchester Institute of Biotechnology, The University of Manchester, 131 Princess Street, Manchester, M1 7DN, UK.
Background: The climate crisis and depleting fossil fuel reserves have led to a drive for 'green' alternatives to the way we manufacture chemicals, and the formation of a bioeconomy that reduces our reliance on petrochemical-based feedstocks. Advances in Synthetic biology have provided the opportunity to engineer micro-organisms to produce compounds from renewable feedstocks, which could play a role in replacing traditional, petrochemical based, manufacturing routes. However, there are few examples of bio-manufactured products achieving commercialisation.
View Article and Find Full Text PDFBalanced dung beetle optimization algorithm based on parameter substitution and escape strategy.
Sci Rep
January 2025
School of Statistics and Applied Mathematics, Anhui University of Finance and Economics, Anhui, 10378, China.
Dung Beetle algorithm is an intelligent optimization algorithm with advantages in exploitation ability. However, due to the high randomness of parameters, premature convergence and other reasons, there is an imbalance between exploration and exploitation ability, and it is easy to fall into the problem of local optimal solution. The purpose of this study is to improve the optimization performance of dung beetle algorithm and explore its engineering application value.
View Article and Find Full Text PDFOrganic solar cells with 20.82% efficiency and high tolerance of active layer thickness through crystallization sequence manipulation.
Nat Mater
January 2025
Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, China.
Printing of large-area solar panels necessitates advanced organic solar cells with thick active layers. However, increasing the active layer thickness typically leads to a marked drop in the power conversion efficiency. Here we developed an organic semiconductor regulator, called AT-β2O, to tune the crystallization sequence of the components in active layers.
View Article and Find Full Text PDFAdvanced microgrid optimization using price-elastic demand response and greedy rat swarm optimization for economic and environmental efficiency.
Sci Rep
January 2025
Department of Theoretical Electrical Engineering and Diagnostics of Electrical Equipment, Institute of Electrodynamics, National Academy of Sciences of Ukraine, Beresteyskiy, 56, Kyiv-57, Kyiv, 03680, Ukraine.
In this paper, a comprehensive energy management framework for microgrids that incorporates price-based demand response programs (DRPs) and leverages an advanced optimization method-Greedy Rat Swarm Optimizer (GRSO) is proposed. The primary objective is to minimize the generation cost and environmental impact of microgrid systems by effectively scheduling distributed energy resources (DERs), including renewable energy sources (RES) such as solar and wind, alongside fossil-fuel-based generators. Four distinct demand response models-exponential, hyperbolic, logarithmic, and critical peak pricing (CPP)-are developed, each reflecting a different price elasticity of demand.
View Article and Find Full Text PDFHow knee muscles and ground reaction forces shape knee buckling and ankle push-off in neuromuscular simulations of human walking.
Sci Rep
January 2025
Chair of Applied Mechanics, Technical University of Munich, Garching, 85748, Germany.
Ankle push-off is important for efficient, human-like walking, and many prosthetic devices mimic push-off using motors or elastic elements. The knee is extended throughout the stance phase and begins to buckle just before push-off, with timing being crucial. However, the exact mechanisms behind this buckling are still unclear.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!