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Related Concept Videos

Line Loss01:10

Line Loss

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The different configurations of source-load connections include wye (star) and delta connections. The relationship between line and phase voltages and currents varies depending on the configuration. When the source is supplying power, it is transmitted through the wires to the load, and during this transmission, some power is absorbed by the wires, leading to line loss.
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Weighted Mean00:57

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While taking the arithmetic, geometric, or harmonic mean of a sample data set, equal importance is assigned to all the data points. However, all the values may not always be equally important in some data sets. An intrinsic bias might make it more important to give more weightage to specific values over others.
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Reducing Line Loss01:18

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In a three-phase circuit, line loss is an indicator of energy dissipated as heat due to the resistance of transmission lines. To address this, incorporating transformers into the system—a step-up transformer at the source and a step-down transformer at the load—is a strategic solution. Two three-phase transformers are introduced to improve this.
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Atomic Weight01:25

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Protons and neutrons have approximately the same mass, about 1.67 × 10-24 grams. Scientists arbitrarily define this amount of mass as one atomic mass unit (amu) or one Dalton. Electrons are much smaller in mass than protons, weighing only 9.11 × 10-28 grams, or about 1/1800 of an atomic mass unit. As a result, they do not contribute much to an element's overall atomic mass. This means that, when considering atomic mass, it is customary to ignore the mass of any electrons and...
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Mass and Weight01:19

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Mass and weight are often used interchangeably in everyday conversation. For example,  medical records often show our weight in kilograms, but never in the correct units of newtons. In physics, however, there is an important distinction. Weight is the pull of the Earth on an object. It depends on the distance from the center of the Earth. Weight dramatically varies if we leave the Earth's surface, unlike mass, which does not vary with location. On the Moon, for example, the...
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Apparent Weight01:09

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True weight is the measure of the gravitational force acting on an object. However, if the object accelerates, its measured weight is different from its true weight. Similar observations can be made when the object is submerged in water. An object's weight in water is its apparent weight, which is equal to the difference between its true weight and the buoyant forces.
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Expert Coaching in Weight Loss: Retrospective Analysis.

Stefanie Lynn Painter1, Rezwan Ahmed1, Robert F Kushner1

  • 1Retrofit, Inc, Chicago, IL, United States.

Journal of Medical Internet Research
|March 15, 2018
PubMed
Summary

Coaching interactions, including expert sessions and web classes, significantly predict weight loss success in a 6-month program. Higher attendance and feedback frequency correlate with greater weight management outcomes.

Keywords:
body mass indexcoachingfeedbackobesityoverweightweight lossweight reduction program

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Area of Science:

  • Obesity and Weight Management
  • Behavioral Science
  • Digital Health Interventions

Background:

  • Coaching is integral to weight management programs, enhancing participant engagement and success.
  • Further research is needed to understand coach-participant interactions and their impact on weight loss outcomes for optimizing coaching practices.

Purpose of the Study:

  • To analyze coach-participant interactions within a 6-month weight loss intervention.
  • To examine the association between interaction methods and weight loss.
  • To determine the impact of coaching on weight loss outcomes.

Main Methods:

  • Retrospective analysis of 1432 participants in a 6-month weight loss program.
  • Examined expert coaching sessions, live web classes, and electronic feedback.
  • Multiple regression analysis identified significant predictors of weight loss.

Main Results:

  • Participants achieved a mean weight loss of 5.14%.
  • Expert coaching attendance, live web class attendance, and food log feedback frequency were significant predictors (P<.001).
  • High attendance (80% coaching, 60% classes) and weekly feedback predicted clinically significant weight loss.

Conclusions:

  • Participant engagement in expert coaching sessions and live web classes are key predictors of weight loss.
  • Frequency of food log feedback from coaches significantly impacts weight loss outcomes.
  • These interaction methods are crucial for successful 6-month weight loss interventions.