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News and Updates

Preventing the ‘24-hour Babel’: the need for a consensus on a consistent terminology scheme for physical activity, sedentary behaviour and sleep

Click here for information on Dr. Ryan Falck and colleagues’ article: Preventing the ‘24-hour Babel’: the need for a consensus on a consistent terminology scheme for physical activity, sedentary behaviour and sleep

Delphi Study is Ongoing

Click here for information on the Around the Clock Terminology Consortium's Delphi Study. — **Delphi Study is Ongoing**

Click here for information on the Around the Clock Terminology Consortium’s Delphi Study.

**International Society for Physical Activity and Health (ISPAH) and Around the Clock Terminology Consortium Blog Post.** Click here to read more.

**Publication: The Around the Clock Terminology Consortium: A Global Consensus on Terminology to Discuss the 24-Hour Cycle of Physical Activity, Sedentary Behavior, and Sleep** Click here to read more.

Around the Clock Terminology Consortium Featured in the Healthier Sleep Magazine
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About Us

The Around the Clock Terminology Consortium (ACT-C), directed by Dr. Ryan S. Falck, PhD, focuses on addressing inconsistencies and developing clear, concise, and consistent terminology to discuss physical activity, sedentary behaviour, and sleep in the 24-hour cycle. The ACT-C consists of 38 researchers and interest holders from 15 countries and 12 scientific societies. Using clear, concise, and consistent terminology, the ACT-C will be an important first step to help advance future research, guidelines, policies, and practices related to the 24-hour cycle of physical activity, sedentary behaviour, and sleep.