The influence of air temperature on the EMG/force relationship of the quadriceps

1993 ◽  
Vol 67 (3) ◽  
pp. 256-260 ◽  
Author(s):  
D. G. Bell
Keyword(s):  
Air Temperature ◽  
Relationship Of ◽  
Force Relationship

Impact of ambient air temperature on human health in India

2018 ◽  
Vol 33 (4) ◽  
pp. 433-439 ◽  
Author(s):  
Harshal R. Salve ◽  
Raghavan Parthasarathy ◽  
Anand Krishnan ◽  
D.R. Pattanaik
Keyword(s):  
Ambient Temperature ◽  
Air Temperature ◽  
Ambient Air ◽  
Current Evidence ◽  
Standard Data ◽  
Ambient Air Temperature ◽  
All Cause Mortality ◽  
Integrated Response ◽  
Public Health Practitioners ◽  
Relationship Of

Abstract A systematic search was carried out in the databases of Pubmed, Indmed and Mausam for articles on the effect of ambient temperature on health. Relevant data were extracted using a standard data abstraction form by two authors independently. The overall effects of ambient air temperature are reported as odds ratio (OR) and 95% confidence intervals (CIs) on mortality. Of 812 records identified, only seven were included in the final review as per pre-defined criteria. An increase in the all-cause mortality rate of 41% are reported during a heat wave in India. Risk ratios for all-cause mortality was in the range of 1.7–2.1. The dose-response relationship of ambient temperature and all-cause mortality and cardiovascular diseases are been reported. Current evidence on the effect of ambient temperature and health is sufficient to initiate an integrated response from policy makers, climate scientists and public health practitioners in India. Continued advocacy and generation of more robust evidence is needed.

216 Experimental Evaluation of the Torque-Bolt Force Relationship of Wheel Bolts for Large Vehicles

2009 ◽  
Vol 2009.84 (0) ◽  
pp. _2-16_
Author(s):  
Yoshinori FUKUMAN ◽  
Toshimichi FUKUOKA ◽  
Masataka NOMURA
Keyword(s):  
Experimental Evaluation ◽  
Relationship Of ◽  
Force Relationship

GS0807 Experimental Evaluation of the Torque-Bolt Force Relationship of Wheel Bolts for Large Vehicles

2008 ◽  
Vol 2008 (0) ◽  
pp. _GS0807-1_-_GS0807-2_
Author(s):  
Yoshinori Fukuman ◽  
Toshimichi Fukuoka ◽  
Masataka Nomura
Keyword(s):  
Experimental Evaluation ◽  
Relationship Of ◽  
Force Relationship

scholarly journals Relationship of air temperature to various chemical, haematological, and haemostatic variables.

1979 ◽  
Vol 32 (1) ◽  
pp. 16-20 ◽  
Author(s):  
G M Bull ◽  
M Brozovic ◽  
R Chakrabarti ◽  
T W Meade ◽  
J Morton ◽  
...  
Keyword(s):  
Air Temperature ◽  
Relationship Of

scholarly journals On the absorption of water by cotton and wool

1907 ◽  
Vol 79 (529) ◽  
pp. 204-205 ◽  
Keyword(s):  
Carbon Dioxide ◽  
Water Vapour ◽  
Air Temperature ◽  
Amorphous Carbon ◽  
The Law ◽  
Relationship Of ◽  
Low Pressures ◽  
The Relationship ◽  
System Water ◽  
Mechanical Rigidity

In a footnote to my paper entitled “ The Law of Distribution where one of the Phases possesses Mechanical Rigidity," I attempted to show how the results obtained by Professor Trouton for the absorption of water vapour by cotton could be reconciled with those obtained by me in the case of similar systems, such as carbon dioxide and amorphous carbon. As the apparatus I had employed in the investigation referred to was particularly suited to the accurate measurement of low pressures, I obtained Professor Trouton’s permission to repeat his work, and to investigate the relationship of pressure and concentration for the systems water-cotton and water-wool at the temperature of melting ice. I was particularly anxious to redetermine the lower portions of the curves, for as in Professor Trouton’s experiments the material was dried at the air temperature, it appeared probable that it contained water at the commencement of the experiment, and that the true origin of his curves lay further to the left than the results appeared to show. If this were the case, the true curve representing equilibrium in the system water-cotton might closely resemble those representing equilibrium in the system carbon dioxide and amorphous carbon.

EMG-force relationship of the cat soleus muscle studied with distributed and non-periodic stimulation of ventral root filaments

1994 ◽  
Vol 186 (1) ◽  
pp. 75-93
Author(s):  
A. C. Guimaraes ◽  
W. Herzog ◽  
M. Hulliger ◽  
Y. T. Zhang ◽  
S. Day
Keyword(s):  
Soleus Muscle ◽  
Ventral Root ◽  
Electromyographic Activity ◽  
Fibre Type Composition ◽  
Type Composition ◽  
Periodic Stimulation ◽  
Relationship Of ◽  
Voluntary Contractions ◽  
Force Relationship ◽  
Stimulation Of

Distributed stimulation of ventral root (VR) filaments and pseudo-random interpulse intervals (based on a Gaussian distribution with a coefficient of variation of 12.5%) were used to modulate electromyographic activity (EMG) and force of the cat soleus muscle to assess the EMG-force relationship. A protocol consisting of addition and rate modulation of ten VR filaments that contain alpha motoneurones to the soleus muscle was adopted. EMG was measured using indwelling electrodes and forces were measured at the distal tendon using a strain transducer. EMG records obtained using this approach were similar in the time and frequency domains to those obtained during voluntary contractions. Force records obtained from stimulation of single VR filaments showed summation effects typical of irregular interpulse intervals. The overall relationship between integrated rectified EMG (IEMG) and mean force was found to be non-linear. At low and high stimulation levels, IEMG tended to increase proportionally more than mean force. In the intermediate stimulation region (i.e. producing forces between approximately 5% and 88% of the maximal tetanic force), the IEMG-mean force relationship was virtually linear. Muscles with a homogeneous fibre type composition, such as the cat soleus muscle, have been reported to have a linear EMG-force relationship.

Research on Dynamic Characteristics of the High-Speed Cable Force Transmission

2020 ◽  
Author(s):  
Senhao Hou ◽  
Xiaoqiang Tang ◽  
Yuheng Wang ◽  
Dianjun Wang
Keyword(s):  
High Speed ◽  
Order Partial Differential Equation ◽  
Force Transmission ◽  
High Acceleration ◽  
Cable Force ◽  
Simulation And Experiment ◽  
Space Discretization ◽  
Relationship Of ◽  
Separation Test ◽  
Force Relationship

Abstract During the landing and detection missions of the Moon, Mars, and asteroids, due to the complexity and unpredictability of the landing process, it is necessary and critical to carry out simulation tests on the ground to simulate the stress state during the separation of the backshell from the lander. A high-speed cable-driven mechanism adopted. The cable force is different at the end actuator and the drum. There are many factors causing this difference, such as high acceleration, cable stiffness, cable density, cable length. In this paper, the cable force transmission of spacecraft during high-speed separation is studied. The dynamic model of high-speed cable-driven mechanism is established based on Newton principle, then the trial function is introduced, and the second-order partial differential equation is solved by using the method of space discretization. The force relationship of the cable in the process of motion is obtained, and the influencing factors of the cable force are explored. Finally, the correctness of the research content in this paper is verified by numerical simulation and experiment. The results show that the model can accurately simulate the force state of the cable, and it has guiding significance for the active high-speed separation test of spacecraft.

Evaluation of the EMG–force relationship of trunk muscles during whole body tilt

2008 ◽  
Vol 41 (2) ◽  
pp. 333-339 ◽  
Author(s):  
Christoph Anders ◽  
Gunther Brose ◽  
Gunther O. Hofmann ◽  
Hans-Christoph Scholle
Keyword(s):  
Trunk Muscles ◽  
Body Tilt ◽  
Whole Body ◽  
Relationship Of ◽  
Force Relationship
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