This study looks at the effects of intense, brief exercise in comparison to traditional endurance exercise on cardiovascular disease markers in younger individuals. (ahealthblog.com)
Morning meal is between 8:30 and 9 am followed by another potty break / brief exercise session. (eastbayspca.org)
Twice weekly is fine; as it will be intense, this must, therefore, be brief exercise for weight loss. (lasting-weight-loss.com)