Key result
Interval exercise dampened diastolic blood pressure, systolic blood pressure, and heart rate reactivity to a speech stressor in children compared to watching TV (p<.05).
Why the study?
Does interval exercise reduce cardiovascular reactivity to interpersonal stress in children?
Does interval exercise reduce cardiovascular reactivity to interpersonal stress in children?
Interval exercise that mimics usual patterns of physically active play dampens cardiovascular reactivity to interpersonal stress in children.
Answers are grounded in this paper and cite their sources.
Hypothesis-generating for activity breaks in stressed children; leaves open effects on long-term outcomes.
Two studies determined whether interval exercise reduces children's stress reactivity. For Experiment 1 children completed interval exercise (n=14) or watched TV (n=14) for 25 min. After 20 min rest children completed a speech task. Speech-induced diastolic blood pressure (DBP) reactivity was dampened in the exercise group (p<.05). For Experiment 2 children (n=22) completed interval exercise-speech and TV-speech conditions on separate days. Physical activity was assessed by accelerometry and aerobic fitness estimated by submaximal exercise. DBP, systolic BP, and heart rate (HR) reactivity to the speech stressor were dampened (p<.05) after exercise compared to TV watching. Fitness was positively associated with HR reactivity. Interval exercise that mimics usual patterns of physically active play dampens cardiovascular reactivity to interpersonal stress.
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Roemmich et al. (2009) studied this question. Interval exercise vs. Watching TV was evaluated on Speech-induced cardiovascular reactivity (diastolic blood pressure, systolic blood pressure, and heart rate) (p=<.05). Interval exercise dampened diastolic blood pressure, systolic blood pressure, and heart rate reactivity to a speech stressor in children compared to watching TV (p<.05).
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