Discover our app

Fire Hydrant

The fire hydrant may seem like a strange name for an exercise. In fact, it perfectly captures the action of the exercise, simulating a dog lifting his leg to relieve himself. It’s a terrific bodyweight exercise for the hip abductors and the glutes. These muscles are often neglected, so adding the fire hydrant to your routine may help balance your routine. 

In this article, we provide a comprehensive overview of the fire hydrant exercise. In addition to a step-by-step guide, we provide expert tips and set and rep guidance. We’ll also discuss who should and should not do this exercise.

How To Do

  1. Get on the floor on your hands and knees. Your hands should be directly under your shoulders, and your knees should be under your hips.
  2. Lift your right leg off the floor to the side by moving your knee out and up. Keep your knee bent.
  3. Keep your core engaged by drawing your belly button toward your spine.
  4. Hold this position for a count of three. Maintain a neutral spine at all times.
  5. Bring your knee back to the floor.
  6. Breathe out as you raise your leg. Breathe in as you lower it.

Fitness made for you

PT-designed routines and recipes.
Get real results without the high price tag.

Tips From Expert

  • Ensure your glutes are directly under your knees and your shoulders are directly under your hands. This provides a stable body position to work from.
  • Keep your head facing down in a neutral position. This helps to limit neck strain and injury risk.
  • Your legs should come directly out to each side at 90 degrees. Ensure they come back to the same position to ensure stability.
  • Keep a straight line from your head to your lower back. This helps to reduce lower back strain.
  • Inhale and engage your core before lifting each leg out. Exhale as you bring them back in.

Optimal Sets and Reps

Here are set and repetition recommendations for the fire hydrant exercise based on four common training goals. 

Training TypeSetsReps
Strength Training3–44–6
Hypertrophy3–48–12
Endurance Training3–415–20
Power Training3–41–5 (explosive)
Optimal Sets & Reps of Fire Hydrant

How to Put in Your Workout Split

The fire hydrant exercise strengthens and stabilizes the hip abductors and glutes. That makes it a lower-body exercise. Perform it on your leg workout days to activate the glutes and stabilize the hips.

This bodyweight exercise can be part of your dynamic warm-up prior to a leg workout. You can also use it as an accessory exercise after your heavy compound exercises, like squats and deadlifts. 

The fire hydrant can even be used as one of your cool-down exercises

This movement can also be part of a glute-focused workout on a 5-day workout split. Combine it with exercises like hip thrusts, glute machine kickbacks, and reverse lunges. 

If you are following a 3-day workout split, like push/pull/legs, do the fire hydrant on leg day.

Use the chart in the previous section for the number of sets and reps according to your training objective.

Beginners should perform the bodyweight version of this exercise. If you want to increase the load, you can add ankle weights or use a mini-loop resistance band. The resistance you choose should still allow for proper form and controlled movement. 

Primary Muscle Groups

Hip Abductors

Muscles located between your lower back and perineum. Consists of three muscle groups.

Hip Abductors

The hip abductors are a group of muscles that work together to move the upper leg away from the body’s midline. These muscles also stabilize the pelvis in standing and walking positions.

The main hip abductor muscles are the gluteus medius, gluteus minimus, and tensor fasciae latae. The gluteus medius and minimus both lie under the much larger gluteus maximus. They are responsible for moving the leg out to the side. This is the action you take when doing the fire hydrant exercise.

The gluteus medius and minimus also help stabilize the pelvis when you are walking, running, or standing on one leg.

The TFL is a small muscle on the outer hip that assists with hip abduction and stabilizes the pelvis. 

Secondary Muscle Groups

Gluteus

Large, superficial muscles located at your buttocks just below your lower back area.

Hip Adductors

Muscles located at the upper inside part of your legs between your quads and hamstrings.

Gluteus 

The gluteus is the largest and, potentially, the strongest muscle in the body. It is commonly referred to as the butt muscle. Its primary function is to extend (straighten) the hip joint. This happens when you stand from a seated position. 

In the fire hydrant exercise, the gluteus plays a secondary role in hip abduction. The upper muscle fibers help lift the leg out to the side and stabilize the pelvis during the exercise.

Hip Adductors

The hip adductors consist of the following muscles located on the inner thigh:

  • Adductor Longus.
  • Adductor Brevis.
  • Adductor Magnus.
  • Pectineus.
  • Gracilis.

The primary function of this muscle group is to bring the thighs together. During the fire hydrant exercise, they help stabilize the pelvis so that it doesn’t tilt as you lift your leg. They also provide a counterbalance to the abduction that occurs as the leg is raised. 

Equipment

Bodyweight

Bodyweight

Requires bodyweight resistance and additional equipment for proper execution.

Variations

Exercises that target the same primary muscle groups and require the same equipment.

Side to Side Leg Swing

Hip Circles

Outer Thigh Raise

Alternatives

Exercises that target the same primary muscle groups and require the different equipment.

Who Should Do?

Athletes

The fire hydrant exercise can help athletes increase their hip stability, strengthen their glutes, and improve their overall body strength. Stable hips will help prevent lower-body injury by increasing joint stability.

Strong glutes also enhance explosive power when driving out of the athletic stance position. Examples of sports that will benefit from this are football, rugby, and wrestling. 

People With Sedentary Lifestyles

Sedentary people often have tight hips and weak hip abductors and glutes. This can result from prolonged periods of sitting and lack of exercise for the lower body muscles. Weak lower body muscles reduce stability and balance, which may increase fall risk. It can also make basic activities, like walking, running, and stair climbing, more challenging.

 The fire hydrant is a bodyweight exercise that is very accessible for beginners. It can be done at home with no equipment. The exercise will start to develop strength and stability in the hip abductors and glutes. 

Rehabilitation Patients

Rehabilitation patients who are recovering from a hip, knee, or lower back injury may benefit from the fire hydrant exercise. It is a low-impact bodyweight movement that can help rebuild a base of strength, mobility, and stability through the hips and pelvis. 

Before adding this exercise to your rehabilitation program, consult with your healthcare provider. While suitable for most people, the fire hydrant may not be appropriate based on your case. Your provider will be able to give you specific guidance.

Who Should Not Do?

People With Severe Hip Pain

The fire hydrant exercise should be avoided if you are suffering from severe hip pain. Since the main movement in the fire hydrant comes from the hip, this exercise may make the pain worse. This could exacerbate any existing injury and delay the healing process. 

Consult a healthcare professional for appropriate rehab exercises that will not aggravate your condition. 

People With Chronic Lower Back Pain

People with chronic lower back pain should not do the fire hydrant exercise. The movement can place additional stress on the erector spinae muscle if performed incorrectly. The positioning of the exercise may also exacerbate lower back pain if you are not bracing your core properly.

We recommend seeking guidance from a physical therapist who can provide you with a safer option. 

People With Poor Core Stability

If you have poor core stability, you will struggle to use proper form on the fire hydrant exercise. The positioning of this exercise demands stability from your core muscles. If you do not possess the appropriate strength, your lower back and hips are likely to sag. This may lead to lower back discomfort. 

If your lower back and hips sag during this exercise, avoid it temporarily. First, build up your core stability with exercises like crunches, Russian twists, and hyperextensions. 

Benefits Of The Fire Hydrant

Builds Strength 

The fire hydrant exercise strengthens the hip abductor muscles. These are the gluteus medius, gluteus minimus and TFL. This will enhance your lower body power, improving your ability to run, jump, and lift. 

Strong hip abductors also contribute to better stability and balance. This is essential for daily activities like climbing stairs and carrying groceries.

Strong adductors support proper knee alignment, reducing the risk of injuries such as knee pain and strain. Strengthening these muscles also supports pelvic stability.  This makes daily movements like walking more efficient, improving functional mobility and quality of life.

Strong hip abductors will also help prevent injury by increasing support and stability to the hip joint and spine. 

Improves Posture 

The fire hydrant exercise helps improve posture by strengthening muscles that help maintain bodily alignment. These muscles are the glutes and hip abductors, which support the pelvis and spine. 

Strong glutes also help prevent the pelvis from tilting forward, maintaining a neutral pelvis and lower back position. This is vital to reduce strain on the spine and prevent lower back pain. It also promotes more efficient movement, reducing injury risk while performing daily activities. 

Enhances Mobility 

The fire hydrant exercise works the hip abductors through their full range of motion. This increases mobility and flexibility in the hip joint. Greater hip mobility improves everyday movements like walking, squatting, and bending. 

Frequently Asked Questions

Do fire hydrants really grow glutes?

Fire hydrants have a limited ability to grow the glutes due to the limited resistance of your body weight. However, you can increase the resistance with ankle weights or a resistance band. This increases muscle-building potential.

What muscles does the fire hydrant exercise target?

The fire hydrant primarily works the hip abductors, which are the gluteus medius, gluteus minimus, and the tensor fasciae latae. Secondary muscles that are also engaged are the gluteus maximus and hip adductors.

Do fire hydrants tone your thighs?

No, fire hydrants will not tone your thighs. This exercise does not engage the four quadricep muscles. To target them, you should do exercises like squats and leg extensions.

How many fire hydrants should I do a day?

The number of sets and reps you should perform on the fire hydrant exercise depends on your training objective. For strength, perform 3–4 sets of 8–12. You will build endurance with 15–20 reps, while 1–5 reps against resistance will develop power.

Resources

Endomondo.com refrains from utilizing tertiary references. We uphold stringent sourcing criteria and depend on peer-reviewed studies and academic research conducted by medical associations and institutions. For more detailed insights, you can explore further by reading our editorial process.

  1. Schoenfeld, B.J., Grgic, J., Van, D.W. and Plotkin, D.L. (2021). Loading Recommendations for Muscle Strength, Hypertrophy, and Local Endurance: A Re-Examination of the Repetition Continuum. Sports, [online] 9(2), pp.32–32. doi:https://doi.org/10.3390/sports9020032.
  2. Opplert, J. and Babault, N. (2017). Acute Effects of Dynamic Stretching on Muscle Flexibility and Performance: An Analysis of the Current Literature. Sports medicine, [online] 48(2), pp.299–325. doi:https://doi.org/10.1007/s40279-017-0797-9.
  3. Flack, N.A.M.S., Nicholson, H.D. and Woodley, S.J. (2013). The anatomy of the hip abductor muscles. Clinical Anatomy, [online] 27(2), pp.241–253. doi:https://doi.org/10.1002/ca.22248.
  4. Shah A;Bordoni B (2023). Anatomy, Bony Pelvis and Lower Limb, Gluteus Medius Muscle. [online] Available at: https://pubmed.ncbi.nlm.nih.gov/32491441/.
  5. Neto (2020). Gluteus Maximus Activation during Common Strength and Hypertrophy Exercises: A Systematic Review. Journal of sports science & medicine, [online] 19(1). Available at: https://pubmed.ncbi.nlm.nih.gov/32132843/.
  6. Jeno (2023). Anatomy, Bony Pelvis and Lower Limb: Thigh Adductor Magnus Muscle. [online] Available at: https://pubmed.ncbi.nlm.nih.gov/30521263/.
  7. Dumont, G.D. (2016). Hip Instability. Clinics in sports medicine, [online] 35(3), pp.435–447. doi:https://doi.org/10.1016/j.csm.2016.02.008.
  8. Sirpa Niinimäki, Härkönen, L., Riku Nikander, Abe, S., Knüsel, C. and Harri Sievänen (2016). The cross-sectional area of the gluteus maximus muscle varies according to habitual exercise loading: Implications for activity-related and evolutionary studies. Homo, [online] 67(2), pp.125–137. doi:https://doi.org/10.1016/j.jchb.2015.06.005.
  9. Abderrahmane Boukabache, Preece, S.J. and Brookes, N. (2021). Prolonged sitting and physical inactivity are associated with limited hip extension: A cross-sectional study. Musculoskeletal Science and Practice, [online] 51, pp.102282–102282. doi:https://doi.org/10.1016/j.msksp.2020.102282.
  10. Coulombe, B.J., Games, K.E., Neil, E.R. and Eberman, L.E. (2017). Core Stability Exercise Versus General Exercise for Chronic Low Back Pain. Journal of athletic training, [online] 52(1), pp.71–72. doi:https://doi.org/10.4085/1062-6050-51.11.16.
  11. Tang, Y., Li, Y., Yang, M., Zheng, X., An, B. and Zheng, J. (2022). The effect of hip abductor fatigue on knee kinematics and kinetics during normal gait. Frontiers in Neuroscience, [online] 16. doi:https://doi.org/10.3389/fnins.2022.1003023.
  12. Dumont, G.D. (2016). Hip Instability. Clinics in sports medicine, [online] 35(3), pp.435–447. doi:https://doi.org/10.1016/j.csm.2016.02.008.
  13. Sánchez-Morales, S., Belén Gutiérrez-Martín, Alfonso Javier Ibáñez-Vera, Rodríguez-Almagro, D., Pecos-Martín, D. and Achalandabaso-Ochoa, A. (2024). Effectiveness of a specific strength program of the gluteus maximus muscle to improve dynamic postural control in female basketball players. A randomized controlled trial. Gait & Posture, [online] 108, pp.90–96. doi:https://doi.org/10.1016/j.gaitpost.2023.11.010.

0 Comments

Cancel

Download App For Free!

Join thousands starting their fitness journey with expert guidance, personalized plans – No fees, no limits, just results!

Download now and start achieving your fitness goals for free!

Feedback

Help us rate this article

Thank you for your feedback

Keep in touch to see our improvement

0
    Your Cart
    Your cart is emptyReturn to Shop