Can Cardio Make Powerlifters Stronger? Here’s What the Science Says

Written by: José A. Díaz Ramos, RDN, NSCA-CPT, IPF Trainer (Lv.2), ISAK N-1, Reviewed by: Rocío Rivera-Ortega, MS, RD, LND and Tatiana Vélez, MS, RD, CSSD, LND

You’re a powerlifter and your goal is to get stronger in the Squat, Bench, and Deadlift. You’ve probably heard the phrase: “cardio kills gains.” But what if that isn’t true? What if adding a small amount of low-intensity cardio could help you recover faster, train better, and perform better on the platform?

The reality is that aerobic capacity plays a bigger role in strength performance than many powerlifters realize. In this article, we’ll explain why low-intensity cardio is beneficial, how it improves recovery and endurance, and how to include it in your training without affecting your strength gains.

Why Should Strength Athletes Care About Aerobic Fitness?

Powerlifting focuses on short, explosive movements. So why should you care about your aerobic system? Because your body still relies on aerobic energy for recovery, work capacity, and training efficiency.

Benefits of Cardio for Powerlifters and Strength Athletes

Faster recovery – Low-intensity cardio increases blood flow, helping clear metabolic waste (like lactate) from muscles more quickly. This means less soreness and faster recovery between sets and sessions.
Improved work capacity – A well-trained aerobic system allows you to handle more total training volume without fatiguing as quickly. This is key for long squat and deadlift sessions.
Improved fat oxidation – When your body uses fat as fuel, it spares glycogen, helping you maintain strength and energy during training. It also supports bodyweight control without extreme dieting.
Stronger heart efficiency – A stronger heart pumps more oxygen and nutrients to muscles, allowing you to stay resilient during longer training sessions.

How Aerobic Fitness Improves Strength Training

Although powerlifting is primarily an anaerobic sport (high-intensity, short-duration efforts), your aerobic system is still working in the background to support performance.

How does this translate into strength gains?

Faster recovery between sets – A better-conditioned athlete clears metabolic waste more efficiently, allowing shorter rest times without performance drops.
More productive training sessions – If you fatigue too quickly, training quality declines. Better aerobic fitness helps you maintain strength across all sets.
Faster recovery between training days – If you struggle with soreness and fatigue after heavy sessions, improving aerobic capacity helps you recover better and come back stronger next session.

Think of your aerobic system as the foundation of your overall conditioning. The stronger it is, the better you perform both in training and on the platform.

How to Add Low-Intensity Cardio Without Losing Strength Gains

Adding cardio doesn’t mean running miles or spending hours on a bike. The key is keeping it low-impact and low-intensity so it supports strength training instead of interfering with it.

Strategies to implement cardio without losing strength

Start small – 2–3 sessions per week of 20–30 minutes are enough to see benefits.
Choose low-impact activities – Walking, cycling, rowing, or swimming are ideal because they don’t add joint stress and are easy to recover from.
Keep intensity low – Keep heart rate at 60–70% of max (you should be able to hold a conversation). Avoid HIIT if recovery and strength are priorities.
Place it strategically – Do cardio after lifting or on rest days to minimize interference with strength performance.

Why Cardio Should Be Part of Your Training Periodization

Low-intensity cardio isn’t just for endurance athletes. For powerlifters, it can be a secret tool to improve recovery, increase training capacity, and optimize overall performance.

By strategically integrating aerobic work, you can lift heavier, recover faster, and train better—without losing strength or muscle mass.

So don’t fear cardio. Use it to your advantage and get even stronger.

References

Effect of Aerobic Training on Fat Loss and Physical Fitness: Frontiers in Physiology
Aerobic Capacity and Recovery in Strength Athletes: Journal of Strength and Conditioning Research
Fat Oxidation and Performance in Endurance Training: Sports Medicine Journal