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Energy System Contributions and Physical Activity in Specific Age Groups during Exergames
Seung-Bo Park1, Minjun Kim1, Eunseok Lee1
1Graduate School of Sports Medicine, CHA University, Seongnam-si, Gyeonggi-do 13503, Korea.
Summary
Exergames primarily utilize the oxidative energy system across all age groups. However, older adults showed lower total energy demands and oxidative system contributions during exergame activities.
Area of Science:
- Exercise Physiology
- Sports Science
- Human Movement
Background:
- Exergames offer a novel approach to enhance physical activity and its health benefits.
- Understanding the specific energy system contributions (phosphagen, glycolytic, oxidative) during exergames across different age demographics is crucial but remains underexplored.
Purpose of the Study:
- To investigate the contributions of the phosphagen, glycolytic, and oxidative energy systems during exergame participation.
- To analyze the metabolic profiles and energy demands across distinct age groups (adolescents, adults, older adults) during exergames.
Main Methods:
- Seventy-four healthy participants (adolescents, adults, older adults) engaged in 'Action-Racing' exergames.
- Key metabolic and physiological parameters were measured, including heart rate, oxygen uptake, lactate levels, and energy system contributions (WPCr, WLa-, WAER, WTotal).
Main Results:
- The oxidative energy system (WAER) was the predominant contributor (65.9 ± 12%) across all participants, significantly higher than phosphagen (WPCr) or glycolytic (WLa-) systems (p < 0.001).
- Older adults exhibited significantly lower total energy demands (72.1 ± 28 kJ) and oxidative system contributions (70.3 ± 24.1 kJ) compared to adults and adolescents (p < 0.05).
Conclusions:
- Exergames predominantly rely on the oxidative energy system, with age influencing overall metabolic work and energy system utilization.
- Future research should focus on quantifying exergame intensity and volume to optimize their effectiveness in promoting physical activity, especially in space-constrained environments.
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