Thread by @nick_krontiris

In this one, breaking up prolonged sitting with regular bouts of light intensity physical activity was associated with reductions in glucose and blood pressure in middle- and older-aged adults.

- Only sedentary breaks that were high in frequency and duration (every 30 min for 5 min) yielded statistically significant reductions in glucose relative to a control condition.

Low frequency (every 60 min) did not yield such reductions in glucose.

"Our findings are consistent with a recent network meta-analysis which identified a sedentary break frequency of every 20-30 min as the optimal frequency for reducing postprandial glycemic responses"

Ref:
doi.org/10.1016/j.jshs…

- Conversely, all tested sedentary break doses – both high and low frequency (every 30 min or every 60 min) and high and low duration (1 min or 5 min), yielded significant reductions in systolic blood pressure.

"Our findings importantly highlight that breaking up prolonged sitting even at a low dose (every 60 min for 1 min) is enough to elicit BP reductions; suggestive that the documented elevations in BP elicited by prolonged sitting can be readily offset...

"...Notably, the observed reductions in systolic BP (~3 to 5 mmHg) are comparable to the acute and chronic BP lowering effects of aerobic exercise...and are clinically meaningful as it would yield a ~13-15% reduction in risk of CVD if sustained".

Breaking Up Prolonged Sitting to Improve Cardiometabolic Risk: Dose-Response Analysis of a Randomized Cross-Over Trial

journals.lww.com/acsm-msse/page…

#exercise #Workout #TrainHard #GymLife #GymTime #muscle #strength #lift #cardio #hiit