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Acute Resistance Exercise Performance Is Negatively Impacted by Prior Aerobic Endurance Exercise
Nicholas A Ratamess1, Jie Kang, Tara M Porfido
1Department of Health and Exercise Science, The College of New Jersey, Ewing, New Jersey.
Journal of Strength and Conditioning Research
|September 23, 2016
Summary
Prior aerobic endurance exercise significantly impairs acute resistance exercise performance in men. Different aerobic exercise types and durations reduced total repetitions, power, and velocity, increasing perceived exertion.
Area of Science:
- Exercise Physiology
- Sports Science
Background:
- The impact of preceding aerobic endurance exercise on subsequent resistance exercise performance is not fully understood.
- Optimizing training protocols requires knowledge of how different aerobic exercise variables affect resistance exercise capacity.
Purpose of the Study:
- To investigate the acute effects of four distinct aerobic endurance (AE) exercise protocols on resistance exercise (RE) performance in healthy, resistance-trained men.
Main Methods:
- Eleven men completed a control RE protocol and four RE protocols 10 minutes after varying AE protocols (different intensities, durations, and modes).
- Resistance exercise involved 5 compound movements (high pull, squat, bench press, deadlift, push press) at 70-80% of one repetition-maximum (1RM).
- Aerobic protocols included treadmill running at 60% V[Combining Dot Above]O2R for 45 min (P1), 75% V[Combining Dot Above]O2R for 20 min (P2), high-intensity intervals (90-100% V[Combining Dot Above]O2R) for 5 sets (P3), and 75% V[Combining Dot Above]O2R uphill for 20 min (P4).
- Measurements included repetitions, power, velocity, heart rate (HR), and ratings of perceived exertion (RPE).
Main Results:
- All four AE protocols (P1-P4) led to significant reductions in total repetitions (9.1-18.6%) compared to the control, with the squat exercise most affected.
- Average power and velocity decreased significantly for the high pull, squat, and bench press following most AE protocols.
- RPE for the high pull and squat increased significantly after AE protocols compared to control.
- Heart rate during RE was elevated by 4.3-5.5% after AE protocols compared to the control condition.
Conclusions:
- Acute resistance exercise performance is significantly compromised in healthy men following various types, intensities, and durations of aerobic exercise.
- High-intensity interval aerobic exercise demonstrated the largest detrimental impact on subsequent resistance exercise performance.
- These findings highlight the importance of sequencing aerobic and resistance exercise to optimize training outcomes.
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