When it comes to endurance sports like ultramarathons, Spartan races, and high-intensity challenges, functional strength can be a game-changer. It’s not just about muscle power but about building a foundation that supports resilience, balance, and movement efficiency. Personally, I’ve found that the more I focus on functional strength, the better prepared I feel for the grueling miles and unexpected obstacles. So, I want to share what I’ve learned and what’s been backed by research to help you improve your endurance performance safely and effectively.
Why Functional Strength is Essential for Endurance Athletes
Functional strength isn't about lifting the heaviest weights but about training for movements that support your sport. For endurance athletes, this type of strength can really make a difference in handling the long hours, rough terrain, and unpredictability that come with the territory.
Injury Prevention: Research shows that functional strength training reduces the risk of common overuse injuries by improving joint stability and correcting muscle imbalances (Witvrouw et al., 2004). After taking this seriously myself, I’ve noticed a huge reduction in my injury frequency.
Improved Efficiency: Strengthened muscles and joints make each movement more efficient. I’ve felt how functional training helps me conserve energy and stay consistent over long distances.
Faster Recovery: Functional strength can also improve muscle recovery, meaning you can bounce back quicker after those intense workouts or races .
Training Functional Strength for Endurance
If you’re new to functional training, or just want to refine your approach, here are the essentials I follow for a well-rounded program that supports my endurance goals.
Balance and Stability First: I start with exercises that engage my core and stabilize my hips, knees, and ankles. This is the foundation; without it, endurance training can lead to more harm than good as its the little muscles that need the most love.
Focus on Compound Movements: Compound exercises, like squats or deadlifts, target multiple muscle groups. They’ve been especially helpful when training for endurance events as so much of my time is spent running that I need the most bang for my buck when Im in the gym for my strength sessions.
Include Explosive Exercises: Adding plyometrics (like box jumps) might seem intense for endurance athletes, but trust me, they make a noticeable difference in agility and power, particularly on rough terrain or hilly courses.
EXERCISES you need to be doing!
These exercises have made a massive impact on my performance especially over the course of my racing season, and I’m confident they can do the same for you.
Here’s how to incorporate them effectively:
Single-Leg Deadlifts
Benefits: Strengthens hamstrings, glutes, and lower back while improving balance.
How to Do It: Stand on one leg, hinge forward at the hips, and lower the weight. This one’s killer for lower body stability and works wonders for injury prevention.
Goblet Squats
Benefits: Builds strength in the quads, glutes, and core. If you’re racing on steep trails, goblet squats prepare you for the climb.
How to Do It: Hold a kettlebell or dumbbell at chest height, squat, and press through your heels to stand up.
Bulgarian Split Squats
Benefits: A fantastic move for knee stability and balanced leg strength, which I find invaluable for endurance.
How to Do It: With one foot on a bench behind you, squat on the front leg. The first few reps burn, but they’re worth it.
Farmers Carry
Benefits: Great for grip, shoulder, and core strength. This exercise simulates carrying gear or handling obstacles.
How to Do It: Hold a weight in each hand, keep your posture tall, and walk in a straight line. Keep it steady – form is everything here.
Bear Crawls
Benefits: Builds core and shoulder stability. It’s also a natural movement that I find incredibly functional for obstacle courses.
How to Do It: Crawl forward on all fours, keeping your hips low.
Weighted Step-Ups
Benefits: Mimics uphill movement, which is a must for races with elevation.
How to Do It: Step onto a bench with one leg, then the other. Repeat, switching sides.
Sample Functional Strength Workout
Here’s a sample workout I’d recommend doing twice a week. It’s designed to be challenging but effective for building endurance-specific functional strength.
Warm-Up
5-10 minutes of light cardio (jogging or cycling)
Dynamic stretching (focus on hips, quads, hamstrings, shoulders)
STRENGTH:
Focus on controlled, compound movements for functional strength.
Single-Leg Deadlifts – 3 sets of 10 reps per leg
Goblet Squats – 4 sets of 12 reps
Bulgarian Split Squats – 3 sets of 10 reps per leg
Farmers Carry – 4 sets of 30 seconds (hold a moderate weight in each hand)
Weighted Step-Ups – 3 sets of 12 reps per leg (use a moderate weight dumbbell)
Rest for 1-2 minutes between each set to allow for proper recovery.
CONDITIONING:
400m Jog at a moderate pace
Bear Crawls – 30 seconds
200m Sprint (or fast pace)
Push-Ups – 20 reps
400m Jog at a moderate pace
Bodyweight Squats – 30 reps
200m Sprint
Plank Hold – 45 seconds
Complete 2 rounds of this conditioning circuit, resting for 1-2 minutes between rounds.
COOLDOWN:
5-10 minutes of stretching (focus on lower body and core to aid recovery).
This split will give you a solid mix of functional strength and endurance training, challenging both power and cardiovascular capacity. The addition of sprints and moderate-pace runs between bodyweight exercises will condition your body to handle bursts of speed and effort—ideal for endurance events that demand sustained performance.
Tips for Making the Most of Functional Strength Training
Prioritize Form Over Load: Go lighter and work on control, especially if you’re new to these movements. Research supports that correct form reduces the risk of injury and improves muscle activation (Cholewicki et al., 2000).
Add Variety: Mixing up your exercises not only keeps things fresh but also ensures you’re hitting all the necessary muscle groups for balanced strength.
Don’t Skip Core Work: Building a strong core directly supports your lower back, which is essential for elong term performance.
Wrapping Up
Functional strength training has been essential for my journey as an endurance athlete. I’ve found that it’s what holds me up in the final miles or reps, helping me move with purpose rather than pain. Whether you’re training for your first ultramarathon, Spartan race, or looking to step up your functional fitness, I highly recommend making these exercises part of your program. Trust me, your future self will thank you.
References
Behm, D. G., Drinkwater, E. J., Willardson, J. M., & Cowley, P. M. (2010). Canadian Society for Exercise Physiology position paper: Resistance training in children and adolescents. Applied Physiology, Nutrition, and Metabolism, 35(6), 748-758.
Cholewicki, J., Greene, H. S., Polzhofer, G. K., & Galloway, M. T. (2000). Neuromuscular function in athletes following injury. Clinical Biomechanics, 15(3), 176-183.
Shinohara, M., Moritani, T., & Katayama, K. (2003). Recovery of muscle strength following high-intensity resistance training in elderly. European Journal of Applied Physiology, 88(2), 119-125.
Witvrouw, E., Mahieu, N., Roosen, P., & McNair, P. (2004). The role of stretching in injury prevention and treatment: Current concepts. Sports Medicine, 34(7), 443-449.
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