Abstract
Objective: To examine the contribution of chronological age (CA), skeletal age (SA), stature, sitting stature, fat-free mass (FFM), and fat mass (FM) to interindividual variability in left ventricular mass (LVM) in male adolescent roller hockey players using allometric models.
Design: Cross sectional.
Setting: Training and competitive sport during adolescence.
Participants: Seventy-three Portuguese male roller hockey players aged 14.5 to 16.5 years.
Independent Variables: Stature, sitting stature, body mass, estimated FM and FFM, and SA assessed by the Fels method.
Main Outcome Measures: Allometric modeling of LVM assessed in accordance with recommendations of the American Society of Echocardiography.
Results: Hockey players (CA: 15.4 +/- 0.6 years; SA: 16.4 +/- 1.5 years) showed an eccentric remodeling of LV structure within the reference range (ie, 0.24-0.42), a dilated LV chamber, but no LVM increase. Exponents for body size descriptors were 2.69 for stature (R-2 = 27%; P <0.001), 2.49 for sitting stature (R-2 = 37%; P <0.001), 0.76 for FFM (R-2 = 31%; P <0.001), and 0.22 for FM (R-2 = 26%; P <0.001). The combination of size descriptors with CA and SA increased the explained variance in LVM slightly (26%-45%).
Conclusions: When stature and FM are used for indexing LVM in a sample of adolescent athletes, biological maturity status should also be considered.
| Original language | English |
|---|---|
| Pages (from-to) | 293-299 |
| Number of pages | 7 |
| Journal | Clinical Journal of Sport Medicine |
| Volume | 23 |
| Issue number | 4 |
| Publication status | Published - Jul-2013 |
Keywords
- youth sports
- growth
- bone age
- left ventricular mass
- allometry
- HYPERTROPHIC CARDIOMYOPATHY
- BLOOD-PRESSURE
- OF-CARDIOLOGY
- HEART
- CHILDREN
- ASSOCIATION
- YOUTH
- RECOMMENDATIONS
- VERIFICATION
- STATISTICS