Stronger, Faster: Does Heavy Lifting Boost Endurance PRs?

The goal of every good strength and conditioning coach is to enhance the physical preparedness of athletes for their sport. This kind of training is done outside of working with a technical coach—for example, a running coach. For endurance athletes, especially runners, this often includes lifting heavy as a strategic tool to build strength and resilience. Strength and conditioning coaches have three primary goals for their athletes: improve performance, increase capacity for training, and reduce the risk of injury.

Myths about strength training for runners: 

• Will adding heavy lifts to my training program cause more soreness, and affect my ability to complete longer runs? No. An effective S&C program will focus on intensity over volume through selecting exercises that are pertinent to improving strength and coordination of movements that are specific to runners. You’ll avoid unnecessary “junk volume,” with ample recovery time integrated into the program to optimize your progress.
• Will lifting heavy add unwanted muscle bulk that will slow me down? No. A well designed S&C program for endurance runners would focus on power production, strength, and functional exercises to improve performance without increasing bulk. 

How does strength and conditioning benefit running performance?

S&C programs are designed to cause several adaptations to the neuromuscular system. They will improve your body’s ability to generate force, more effectively use elastic energy from tendons, and help you run with more efficiency which will help you run farther by preventing muscle fatigue. 

All of this is to say – When you’re an athlete, you should train like an athlete. Here is how you can incorporate S&C into your endurance training program:

Building Endurance That Lasts

Plyometrics/Power: Plyometrics: 3x/week @ 50 reps per session// Power: 30-70% of 1RM performed @ high velocity for 3-5 reps per set. 

Plyometrics are exercises that are used to make you more explosive in your movements – like pushing off the ground more forcefully as you’re running, and accepting the force through your tendons as you land. When you teach your body to rely on the elastic properties of tendons to repeatedly create force off the ground, your muscles will fatigue at a slower rate and you can run farther. 

Power exercises should focus on lifting a lighter weight fast. Because of the focus on speed you should reduce weight to 30-70% of your 1RM and focus on patterns that include “triple extension” (more on that later). Including plyometrics and power in your training benefits your feet, achilles/calves, hips, knees, and ankles which are all common sites of injury for runners. 

Speed Starts with Strength

Strength training: 2-3x/week @ 80% or more of your 1RM for 3-6 reps/set

Strength is required for muscle groups to produce force during coordinated movements. If you want to run faster, you need to be able to produce a high level of force rapidly. Running speed is directly related to the amount of force your body is able to produce against the ground. Also, it is no surprise that runners tend to suffer from common overuse injuries, known as tendinopathies. These occur due to the high volume and repetitive loading on the body (joints and lower limbs in particular for runners). When you strength train you are strategically placing load through a muscle with the goal of increasing its tolerance to repetitive stress. Training in this way helps reduce the risk of injury. 

My advice is to focus on one major lift, that you will perform heavy, per training block (4 week period). If you are training for strength you should focus on 80% or more of your 1RM for 3-6 reps/set. A heavy stimulus and fewer reps per set are required to create these adaptations. 

Train Running Mechanics to Build a More Resilient Body

Dynamic warm up/functional exercises: 3x/week @ 15-30 minute sessions. These can be performed after a short duration/high intensity training run. 

As discussed above, focus on selecting exercises specifically for runners so we don’t waste time/effort on “junk volume.” For runners, a dynamic warm up should include hip mobility, single leg stability, hamstring activation, calf strength, and trunk control. Strength that you acquire in the gym does not always translate to activity unless you train it to do so. We want to make sure the strength you are acquiring from heavy lifting can be used to express force well during running. 

Runners should choose exercises that will develop force to improve running and should involve the lower body producing “triple extension,” which is the action of the ankles, knees, and hips straightening in a coordinated pattern. Think of jumping straight up to create this movement. This type of training allows your body to accelerate at a high level of force similar to a running stride.  

In conclusion… 

Nobody falls in love with strength training through bridges and core work. Real change comes from lifting heavy, training power, and teaching your body to handle force.

So, will heavy lifting help you PR? If you follow a smart S&C plan, progress your lifts, and recover well—absolutely.

The takeaway: If you’re serious about running stronger, faster, and longer, it’s time to train like it.

Written by Cassie Santana – PTA, CSCS, NASM| Physio Room

Sources: “Strength and Conditioning for Endurance Runners,” (Blagrove)