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  2. Bioelectrical impedance analysis - Wikipedia

    en.wikipedia.org/wiki/Bioelectrical_impedance...

    Bioelectrical impedance analysis (BIA) is a method for estimating body composition, in particular body fat and muscle mass, where a weak electric current flows through the body, and the voltage is measured in order to calculate impedance (resistance and reactance) of the body. Most body water is stored in muscle.

  3. Human power - Wikipedia

    en.wikipedia.org/wiki/Human_power

    They may directly use mechanical power from muscles, or a generator may convert energy generated by the body into electrical power. Human-powered equipment primarily consists of electrical appliances which can be powered by electricity generated by human muscle power as an alternative to conventional sources of electricity such as disposable ...

  4. BMI vs. Body Fat: What's More Important? - AOL

    www.aol.com/bmi-vs-body-fat-whats-105700871.html

    BMI vs. Body Fat Percentage. BMI and body fat percentage are both ways of determining whether a person has a healthy weight or not. A high BMI can indicate a high body fat percentage, but it’s ...

  5. Body fat percentage - Wikipedia

    en.wikipedia.org/wiki/Body_fat_percentage

    However, its accuracy declines at the extremes of body fat percentages, tending to slightly understate the percent body fat in overweight and obese persons (by 1.68–2.94% depending on the method of calculation), and to overstate to a much larger degree the percent body fat in very lean subjects (by an average of 6.8%, with up to a 13% ...

  6. Body adiposity index - Wikipedia

    en.wikipedia.org/wiki/Body_adiposity_index

    The BAI is calculated as: [2] Hip circumference (Pearson correlation coefficient, R = 0.602) and height (R = −0.524) are strongly correlated with percentage of body fat.. Comparing BAI with "gold standard" dual-energy X-ray absorptiometry (DXA) results, the correlation between DXA-derived percentage of adiposity and the BAI in a target population was R = 0.85, with a concordance of C_b = 0

  7. Energy homeostasis - Wikipedia

    en.wikipedia.org/wiki/Energy_homeostasis

    Energy intake is measured by the amount of calories consumed from food and fluids. [1] Energy intake is modulated by hunger, which is primarily regulated by the hypothalamus, [1] and choice, which is determined by the sets of brain structures that are responsible for stimulus control (i.e., operant conditioning and classical conditioning) and cognitive control of eating behavior.

  8. Earth Day 2014: Celebrate by looking at 11 amazing photos of ...

    www.aol.com/news/2014-04-22-earth-day-2014...

    From the original Blue Marble photo shot back in 1972 to the new high-definition Blue Marble images to a screen shot of the very first video image of Earth taken by a weather satellite in 1960 ...

  9. World energy supply and consumption - Wikipedia

    en.wikipedia.org/wiki/World_energy_supply_and...

    Electricity generators are driven by steam or gas turbines in a thermal plant, or water turbines in a hydropower station, or wind turbines, usually in a wind farm. The invention of the solar cell in 1954 started electricity generation by solar panels, connected to a power inverter. Mass production of panels around the year 2000 made this economic.