Strength and VO2max Changes by Exercise Training According to Maturation State in Children
Liliana Aracely Enríquez-Del-Castillo1, Andrea Ornelas-López1, Lidia G De León1
1Faculty of Physical Culture Sciences, Autonomous University of Chihuahua, Campus II, Periférico de la Juventud y Circuito Universitario S/N. Fracc. Campo Bello, Chihuahua 31125, Mexico.
Children (Basel, Switzerland)
|July 27, 2022
Summary
A six-week moderate-intensity exercise program enhanced physical fitness in children aged 9-13. Improvements in aerobic capacity and muscular strength were observed regardless of biological maturation status.
Area of Science:
- Pediatric Exercise Science
- Sports Medicine
- Human Biology
Background:
- Physical activity (PA) offers known health benefits, yet the influence of biological maturation on these effects in children remains underexplored.
- Understanding maturation's role is crucial for tailoring effective exercise interventions in pediatric populations.
Purpose of the Study:
- To investigate the impact of a six-week moderate-intensity training program on muscular strength and aerobic capacity in children aged 9-13.
- To analyze these effects in relation to children's individual biological maturation states.
Main Methods:
- Twenty-six schoolchildren (15 girls) completed a six-week program focusing on aerobic/anaerobic capacity and coordination.
- Measurements included maximal oxygen uptake (VO2max), trunk-lift, push-ups, curl-ups, and handgrip strength.
- Covariates included BMI, skeletal maturity indicator (SMI), peak height velocity (PHV), age on peak height velocity (APHV), and sex.
Main Results:
- The training program significantly improved VO2max, push-ups, curl-ups, and handgrip strength across the group.
- VO2max gains were more substantial in normal-weight children compared to those with overweight-obesity.
- Girls demonstrated higher dominant handgrip strength, and PHV positively correlated with dominant handgrip strength.
Conclusions:
- A six-week moderate-intensity training program effectively enhances physical fitness in children, irrespective of their maturation status.
- Somatic maturation plays a significant role in increasing physical abilities among schoolchildren.
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