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Oxygen consumption during concurrent training: influence of intra-session exercise sequence and aerobic exercise
Rodrigo Ferrari1, Cristine Alberton2, Stephanie Pinto2
1Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
Biology of Sport
|November 20, 2018
Summary
Concurrent training order does not impact oxygen consumption (VO2). However, including running in your resistance and aerobic exercise routine can significantly increase VO2 and optimize energy expenditure in young women.
Area of Science:
- Exercise Physiology
- Sports Science
- Human Performance
Background:
- Concurrent training, combining resistance and aerobic exercise, is popular for simultaneous improvements.
- Optimizing concurrent training protocols is crucial for maximizing physiological adaptations.
- Understanding the acute effects of exercise sequencing and modality is essential for effective program design.
Purpose of the Study:
- To compare the acute effects of different intra-session exercise sequences on oxygen consumption (VO2) and energy expenditure (EE).
- To investigate the impact of aerobic exercise modalities (running vs. cycling) within concurrent training sessions.
- To determine the influence of exercise order (resistance-first vs. aerobic-first) on physiological responses in young women.
Main Methods:
- Eleven young women completed four concurrent training sessions: resistance-running (RRu), resistance-cycling (RC), running-resistance (RuR), and cycling-resistance (CR).
- Aerobic exercise was performed at 95% of the second ventilatory threshold for 30 minutes.
- Resistance exercise involved 4 sets of 10 repetitions at 10-repetition maximum (RM), lasting approximately 21 minutes.
- Oxygen consumption (VO2) was continuously measured using a portable gas analyzer.
Main Results:
- No significant differences in VO2 were observed based on the intra-session exercise sequence (RRu vs. RuR; RC vs. CR).
- Concurrent training sessions incorporating running demonstrated significantly higher VO2 compared to those with cycling, irrespective of exercise order.
- VO2 values (ml·kg⁻¹·min⁻¹) were higher for running-based sessions (RRu: 27.5, RuR: 27.1) than cycling-based sessions (RC: 20.2, CR: 20.8).
Conclusions:
- The sequence of resistance and aerobic exercise within a concurrent training session does not acutely affect oxygen consumption (VO2).
- Incorporating running as the aerobic component in concurrent training is more effective for increasing VO2 and optimizing energy expenditure.
- Future research should explore the long-term adaptations and optimal programming strategies for concurrent training.
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