Photo by Grace Anne Bobadilla on Unsplash | Photo by Mathieu Improvisato on Unsplash |
Without the heavy barbells, technical gymnastic skills and Olympic Lifting of CrossFit, HYROX’s combination of 8 'less technical, more accessible' Functional Fitness Stations (or Stages) to complete between 8 separate 1km Runs has led to more gym-goers signing up to compete in a HYROX event, with first-timers often in Pairs (Doubles) or Team (Relay) Event Categories. Only the brave take on an Individual (Singles) comp!
For WOMENS OPEN HYROX this is:
RUN 1KM - SKI ERG 1000m
RUN 1KM – 102KG SLED PUSH 50m
RUN 1KM – 78KG SLED ROPE PULLS 50m
RUN 1KM – BURPEE-BROAD JUMPS 80m
RUN 1KM – ROW ERG 1000m
RUN 1KM – 2x16KG KETTLEBELL FARMERS CARRY 200m
RUN 1KM – 10KG SANDBAG WALKING LUNGES 100m
RUN 1KM – 4KG WALL BALLS to a 2.7metre target 100 Reps
(** For the men the weights are a bit heavier and the Wall Ball target a bit higher but otherwise it's essentailly the same format **)
It goes without saying no-one should enter a competition without an appropriate recent training history.
Photo by Grace Anne Bobadilla on Unsplash HYROX is an all round fitness challenge, it typically requires more cardio endurance than a standard CrossFit Open event or your typical CrossFit Class, WOD, workout, session or whatever the current preferred terminology is.
HYROX is demanding on the body – if you’ve trained appropriately and gradually – it’s demanding in a good way. The mix of more high volume fitness movements, sustained cardio demand; loaded functional exercises, and the fatigue that accumulates, your physical weaknesses, conditioning and training gaps can be exposed, or challenged at the least – for some this can lead to sudden onset or overuse injuries.
Most HYROX injuries are preventable with good event preparation; appropriate balance of training with other activities – a particular issue when people take on a HYROX event on top of concurrent historic training or whilst also training for a half or full running marathon; adequate recovery; good nutrition; and solid movement biomechanics.
Different athletes are prone to different injuries for a variety of reasons. Injury prevention is better than cure and HYROX injury risk, like running injury risk, can be reduced with appropriate knowledge and action;
Knee Pain
Any running based event poses a risk for knee pain and with the addition of broad jumps, wall balls and weighted walking lunges, kettlebell carries and sled pushes there is significant load to the knee. Poor supporting muscle strength, sub-optimal movement patterns and muscle imbalances, and inappropriately paced training programs, as well as problems up at the hip or down at the ankle can all overload the knees.
Things to help: Focus on strengthening your glutes, quads and hamstrings improve your ankle mobility and address tight muscles have your foot by a mechanics checked out and allow appropriate recovery between your training sessions.
Low Back Pain
This is where the repeated resistance work can tax the low back leading to cumulative fatigue fibre failure. The cyclical loading of repeated burpees and broad landings also create significant compressive forces for the low back structures and the more times you put down those kettle bells from the carry, the more times you have to pick them up again, essentially adding dead lifting into the event. Having a well-conditioned core or midline is essential along with adequate hip extensor strength. The more the hips can drive the movement, the less strain on the low back. The better your core, or midline stabilisation, the better you will deal with the fatigue that will hit you in the second half of training sessions and events. Inefficient lifting mechanics will also contribute. An advanced athlete can cope with dead lifting with a very rounded low back and may well achieve optimal stabilisation as they do so; for others the repeated lumbar disc cyclical loading can be the route to low back pain; over-correcting can be the route to facet pain.
Things to help: Ensure you don’t neglect midline stabilisation. improve your core. Improve your hip mobility. Improve your glutes strength and power. Get your squat biomechanics assessed. These are essential for efficient wall ball cycling - the final event stage where you are working under the most fatigue. Get your foot biomechanics assessed - the repeated single leg striking of walking lunges and 8km’s worth of running are going to expose any issues.
Calf Injuries & Achilles Tendon Pain
The volume of running intervals, sled pushes, broad jumps and their landings, provide serious training load to the calves and Achilles, and issues with stiffness or pain can begin subtly, build, and progress into intrusive issues. Chronic Achilles issues can take a few months to get fully on top of so any issues, get them checked out before you drift into the training picture.
Things to help: Structure your training appropriately so that you do not overload the Achilles. Ensure adequate recovery between sessions so that tendon adaptation can occur. Load management includes everything you do over 24 hours, so the stairs in the office or at home, the hilly streets of Bristol, other fitness activities, dancing at the weekend, the list goes on. Proper load management is key. Maintaining good flexibililty of the calves and the Achilles are important. Building tendon strength whilst maintaining elasticity is required. Footwear and rearfoot issues can also play a factor.
Photo by Mathieu Improvisato on Unsplash Shoulder Pain
Ski erg, rope pulls, the rower, kettlebell carries, and high volume wall balls are repeated demand on shoulder mechanics and sustained and repetitive loading of the shoulder can lead to sub-acromial impingement and rotator cuff issues can ensue, especially if dynamic shoulder stability is suboptimal or you have restricted mobilities. These problems can develop gradually or quite suddenly, again fatigue plays a factor. Do not ignore repeated shoulder discomfort linked to HYROX training.
Things to help: Don’t neglect your rotator cuff. Ensure you have good thoracic spine mechanics, good scapular control, and warm up well before heavy repetitive shoulder loading sessions. If you are struggling with your thoracic spine mobility get checked out by a physio. Targeted mobilisation exercises or hands-on joint mobilisation and manipulation (manips) can get you the mobility you’re gonna need to protect those shoulders.
Shin Pain
The muscles on the front of the shin absorb force. In HYROX is the biggest risk is soft tissue related pain rather than the stress fractures that marathon runners may be exposed to. In HYROX, the high impact exercises and the volume of running all contribute, and along with poor foot biomechanics can put you at risk. Aggressive increases in running and burpee volume will definitely put you at risk. Running volume combined with a heavy loading tighten up your calves and are a combination your body may not appreciate.
Things to help: Build repetitive impact loading gradually. Get your foot biomechanics checked out. Make sure you were appropriate training footwear. Go for more shock absorbency if this has been an issue for yourself in the past. Like tennis elbow get checked out when signs are mild before pain becomes more intractable and more difficult to address.
Foot Pain
Sharp heel pain and pain under the sole of the foot, with stiffness on rising and over the first few steps, especially on waking up, and pain worse after the training are classic signs of plantar fasciitis - a well-known issue for runners. The running and jump landing in HYROX expose the same tissues to high impact forces. The plantar fascia’s role is to absorb this force and it needs to be both appropriately strong and elastic to be able to do this efficiently. Tight calves and poor foot mechanics are big contributing factors.
Things to help: Make sure you have adequate calf muscle stretch range. You should be seeking to address training-related calf tightness every week. Build up training gradually and wear appropriate footwear for your event. Get foot pain checked out early. Build adequate recovery into your training structure. Again, what you do over 24 hours matters it’s not just all down to your HYROX training but total life load. Consider cycling to work rather than walking. Consider reducing running and taking a break from sled pushes and broad jumps that are driving forcefully through the balls of the feet and plantar fascia.
Elbow Pain
Five of the HYROX stations involve grip strength and further load is driven through the forearm bones into the elbows with burpees and repeatedly catching wall balls. Watch out for pain on the outside of the elbow, also known as tennis elbow. Overload of the common extensor origin through repeated gripping activities can lead to intrusive elbow pain developing, which then interferes with multiple stages of training, and the event itself and should be addressed early.
Things to help: Build your grip strength gradually in your training. Stretch your forearm muscles. Overload in the grip - too much too soon is a classic training error. Get any signs of tennis elbow assessed by your physiotherapist before they really take hold.
THE THING ABOUT HYROX..... is that it attracts people who love pushing themselves and their bodies to see how much they can do. That’s part of the fun! But recovery, mobility, and injury prevention deserve just as much attention as the workouts themselves and what their bodies can do. .
So if you don’t fancy your back, shoulders, elbows, knees, shins, Achilles, feet playing up and holding you back then a functional fitness physio assessment, rehab strategies and/or supportive accessory training exercises, along with an appropriate HYROX training programme structure for you is the better way to go.
Working with Pete Jowsey, Sports Physiotherapist can help identify muscle imbalance, joint dysfunction, signs of tendon overload, ligament issues, muscle weaknesses, and nerve irritations before they become intrusive injuries, improve your biomechanics and movement efficiency, and shape a more sustainable long-term training approach.
Cross the finish line satisfied, buzzing, exhausted but not broken! I’m sure you’ll love it.
For physiotherapy advice and structured prehab/rehab in relation to Hyrox BOOK IN for a 60 minute appointment for a single specific problem; or book in for an extended 90 minute appointment for a full HYROX musculoskeletal review.
Pete Jowsey MSc MMACP MCSP HCPC
Member of the Association of Chartered Physiotherapists in Sports and Exercise Medicine (ACPSEM)
Member of the Musculoskeletal Association of Chartered Physiotherapists (MACP)