The main issue is body composition (see the body fat calculator for more). Calorie expenditure will vary depending on the ratio of body fat to muscle or lean mass. NOTE that as our bodies adapt to exercise and our body composition changes - so will the amount of Calories burned.
The definition of a throttle is a valve that controls the fluid flow. An example of a throttle is a car part that controls how fuel moves through the system. Throttle is defined as to control the speed of an engine or the flow of fuel in an engine, or to hold down or choke.
Throttle body showing throttle position sensor on the right. A throttle position sensor (TPS) is a sensor used to monitor the throttle position of a car. The sensor is usually located on the butterfly spindle/shaft so that it can directly monitor the position of the throttle.More advanced forms of the sensor are also used, for example an extra closed throttle position sensor (CTPS) may be employed to indicate that the throttle is completely closed.ome engine control units (ECUs) also control the throttle position electronic throttle control (ETC) or  drive by wire  systems and if that is done the position sensor is used in a feedback loop to enable that control.