Summermatter cycle in the context of Dieting

⭐ Core Definition: Summermatter cycle

The Summermatter cycle is a physiological concept describing the complex relationship between physical activity/inactivity and energy expenditure/conservation.

The concept provides an evidence-based explanation why dieting fails in most cases and results in a Yo-yo effect. A central element of the Summermatter cycle is that reductions in energy intake, occurring with dieting or starvation, initially successfully induce weight and adipose tissue loss. At the same time, the reduced food availability prompts ambulatory activity, which further accelerates body and fat mass loss and depletes ATP, glycogen and intramyocellular lipids (IMCL) in skeletal muscle. The scarcity of energy ultimately suppresses thermogenesis in skeletal muscle to conserve energy.

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Summermatter cycle in the context of Physical activity

Physical activity is defined as any movement produced by skeletal muscles that requires energy expenditure. Physical activity encompasses all activities, at any intensity, performed during any time of day or night. It includes both voluntary exercise and incidental activity integrated into the daily routine.This integrated activity may not be planned, structured, repetitive or purposeful for the improvement of physical fitness, and may include activities such as walking to the local shop, cleaning, working, active transport etc.

Lack of physical activity is associated with a range of negative health outcomes, whereas increased physical activity can improve physical and mental health, as well as cognitive and cardiovascular health. There are at least eight investments that work to increase population-level physical activity, including whole-of-school programmes, active transport, active urban design, healthcare, public education and mass media, sport for all, workplaces and community-wide programmes. Physical activity increases energy expenditure and is a key regulator in controlling body weight (see Summermatter cycle for more). In human beings, differences among individuals in the amount of physical activity have a substantial genetic basis.

View the full Wikipedia page for Physical activity

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Summermatter cycle in the context of Dieting

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⭐ Core Definition: Summermatter cycle

Summermatter cycle in the context of Physical activity