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Writer's pictureJohn Mendenhall

7 Essential Strength Training Exercises for Triathletes to Crush Your Next Ironman!

As a triathlete, you're always pushing your limits while swimming, riding, and running to get to the start line. But if you want to excel in your triathlon/Ironman journey, adding strength training to your routine is a game-changer. It not only boosts your performance but also helps keep you injury-free and prepared for any challenge. The triahtlon offseason is the best time to focus on strength!


Here are seven essential strength training exercises that will elevate your performance and build the strength you need for the race.


1. Glute Bridges


Glute Bridge Exercise
Glute bridges build strong glutes for better cycling and running performance.

Glute bridges are a powerful way to engage and strengthen your glutes—key muscles essential for swimming, cycling, and running.


How to do it:


  • Lie on your back with your knees bent and feet flat on the ground, hip-width apart.

  • Press through your heels and lift your hips towards the ceiling, squeezing your glutes at the top.

  • Hold for a moment, then lower back down.

  • Ensure you do not use your back to lift your hips off the ground.


Focus: Aim for 3-5 sets of 12-15 repetitions.


This exercise stabilizes your pelvis which enhances your power output and helps reduce strain on your lower back. Research indicates that strengthening your glutes can lead to a significant increase in your running efficiency.


2. Planks


Plank Exercise
Planks engage your core for better stability and strength.

Core strength is critical for triathletes. Planks provide an excellent base for overall stability. A strong core enhances posture and efficiency across all three disciplines. Being in a time trial position on the bike leg of your next IRONMAN, is like holding a plank. Engage your core and move with those legs!


How to do it:


  • Start in a push-up position, rest on your forearms or your hands.

  • Keep your body in a straight line from head to heels, engaging your core.

  • Hold for as long as you can, aiming for 30-60 seconds.

  • If you find your hips start to sink down towards the ground, then take a break. Most people benefit from short stints of a good plank vs. a poor position for a longer time.


Focus: Practice 3 sets, gradually increasing your hold time.


Strengthening your core through planks can improve your swim strokes, cycling cadence, and running form. Research indicates that core strength can lead to a reduction in the risk of injuries significantly!


3. Deadlifts



Deadlifts are a powerhouse exercise targeting your posterior chain (glutes, hamstrings, and back). This is particularly valuable for athletes logged in long hours of cycling or running.


How to do it:


  • Stand with your feet hip-width apart and a barbell or dumbbells in front of you.

  • With a straight back, hinge at your hips and lower the weight, bending your knees slightly.

  • Press through your heels to return to a standing position.

  • Lift with your hamstrings and glutes, if you feel it in the back or your back is rounding, then you likely need to reduce the weight and focus on maintaining a flat back.


Focus: Start with lighter weights and aim for 3-5 sets of 8-15 repetitions.


Incorporating deadlifts will help you achieve better muscle balance and support the proper running form crucial for longer races, such as the Ironman. Athletes who regularly include deadlifts often see improved run splits by an surprising amount!


4. Lunges


Lunges for Leg Strength
Lunges improve leg strength, balance, and overall endurance.

Lunges increase leg strength and enhance balance, which is vital for maintaining proper form while running and cycling.


How to do it:


  • Stand tall with your feet hip-width apart.

  • Step forward (or backwards) with one leg, lowering your hips while keeping your front knee over your ankle.

  • Push back to the starting position and switch legs.


Focus: Aim for 3-5 sets of 8-15 lunges per leg.


Adding lunges to your routine not only strengthens your legs but also helps address muscle imbalances that could result in injuries.


5. Push-Ups



Upper body strength is often neglected in triathlon training. However, push-ups strengthen your chest, shoulders, and triceps, which are important for buoyancy and propulsion in the water.


How to do it:


  • Start in a high plank position with hands slightly wider than shoulder-width apart.

  • Lower your body until your chest is just above the ground.

  • Press back up to the starting position.

  • Ensure your elbows do not flare out while pushing up or lowering down. This will stress the smaller rotator cuff muscles instead of the bigger triceps and pec muscles.


Focus: Work up to 3-5 sets of 8-15 repetitions.


This exercise not only increases overall body strength but also improves swim stroke mechanics, allowing for more powerful and efficient pulls. Triathletes focusing on upper body strength often report swimming feels easier.


6. Bent-Over Rows



A strong back is essential for stability throughout your triathlon. Bent-over rows target your upper back and lats, both critical for effective swimming.


How to do it:


  • Hold a dumbbell in each hand, bending at the hips while keeping your back flat.

  • Pull the weights to your rib cage, squeezing your shoulder blades together.

  • Lower with control.

  • You can also do this in a plank for added stability control!


Focus: Start with 3 sets of 8-15 repetitions.


Including bent-over rows in your workouts strengthens your back while supporting proper swimming form, which can decrease drag and enhance your speed through the water.


7. Medicine Ball Twists



Core strength is essential for maintaining good form across all three triathlon disciplines. Medicine ball twists build rotational strength and stability.


How to do it:


  • Sit on the ground with your knees bent, holding a medicine ball.

  • Lean back slightly, keeping a straight back, then twist your torso to one side and then the other.

  • Focus on stabilizing your core while moving the medicine ball back and forth.


Focus: Perform 3 sets of 8-15 twists on each side.


This exercise integrates well into your routine, enhancing your posture during the bike and run legs of the triathlon. Varied strength training, like this, can help improve your overall performance, leading to faster race times.


Final Thoughts


Incorporating these seven essential strength training exercises into your triathlon training will empower you to compete at your peak while significantly lowering your injury risk. Each session builds not just physical strength but also mental fortitude as you prepare to tackle your next Ironman race ( or half Ironman).


Building strength sets you up not only for a faster finish but also for a more balanced training regimen. Lace up your trainers, grab some weights, and start integrating these exercises into your routine today! Your body will reward you on race day as you cross the finish line stronger than ever.


Keep challenging yourself—you are capable of greatness!




Coach John

Dr. John Mendenhall II PT, DPT

@Triathlo101 on YouTube


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