What question did this study set out to answer?

To determine the impact of a 13-week aerobic running program and subsequent 2-month detraining period on left ventricular morphology and diastolic function in prepubertal children.

December 31, 2001International Journal of Sports Medicine

Effect of Aerobic Training and Detraining on Left Ventricular Dimensions and Diastolic Function in Prepubertal Boys and Girls

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Why the study?

Does an aerobic training program alter left ventricular dimensions and diastolic function in prepubertal children?

Key Points

To determine the impact of a 13-week aerobic running program and subsequent 2-month detraining period on left ventricular morphology and diastolic function in prepubertal children.
Assigned 29 children aged 10-11 years to a 13-week running intervention (3 sessions of 1 hour/week at >80% maximum heart rate) and 26 age-matched controls to habitual activity.
Evaluated resting left ventricular structure and function using M-mode, 2-dimensional, and pulsed-wave Doppler echocardiography before and after training, and after 2 months of detraining in the training group.
Aerobic training increased left ventricular internal chamber dimension by +4.6% (p < 0.01) and decreased wall thickness by -10.7% (p < 0.05), accompanied by a resting heart rate reduction of -7 beats/min (p < 0.01).
Training enhanced early passive diastolic filling and decreased late active filling without altering systolic function, whereas the control group experienced no changes over 13 weeks.
Following 2 months of detraining, all left ventricular morphological dimensions and Doppler-derived diastolic filling indices returned completely to pretraining baseline values.

Structured PICO

Does an aerobic training program alter left ventricular dimensions and diastolic function in prepubertal children?

Population

55 prepubertal boys and girls (n=29 training group, n=26 control group), aged 10-11 years.

Intervention

13-week running program (3 x 1 h/week, intensity: > 80% HRmax) followed by 2 months of detraining.

Comparator

Control group of the same age maintaining normal life for 13 weeks.

Outcome

Left ventricular (LV) cardiac morphology and function (including LV internal chamber dimension, wall thickness, and diastolic filling performance) measured by M-mode, 2-dimensional and pulsed-wave Doppler analyses.surrogate

Aerobic training in prepubertal children induces reversible cardiac morphological adaptations and favorable LV diastolic filling modifications, which differ from typical adult adaptations.

Discussion

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Implication

Aerobic training may induce reversible LV remodeling in prepubertal children; leaves open clinical relevance and need for randomized confirmation.

Cite This Study

Obert et al. (2001) studied this question.

synapsesocial.com/papers/6a83bf0f048eca62454d8617 https://doi.org/10.1055/s-2001-11343

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Implication

Aerobic training may induce reversible LV remodeling in prepubertal children; leaves open clinical relevance and need for randomized confirmation.

Effect of Aerobic Training and Detraining on Left Ventricular Dimensions and Diastolic Function in Prepubertal Boys and Girls

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Effect of Aerobic Training and Detraining on Left Ventricular Dimensions and Diastolic Function in Prepubertal Boys and Girls

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Also Consider