The connection between jaw tension and neck pain in athletes

Athletes often look for the source of neck pain in the shoulders, upper back or cervical spine. The jaw can be overlooked, even though clenching and grinding create tension through the muscles that connect the face, skull, neck and ribcage. This matters during heavy lifts, contact sport, sprinting and any effort that encourages an athlete to brace hard.

The connection between jaw tension and neck pain in athletes is usually related to coordination rather than a single damaged structure. Improving breathing, posture, jaw position and movement quality may reduce unnecessary load before strength and intensity are increased. The strategies below can suit Australian athletes training in a gym, on an oval, at a surf club or during a weekend competition.

How jaw tension affects the neck

The temporomandibular joints, commonly called the TMJs, sit just in front of the ears. Several muscles that close and move the jaw attach around the cheek, temple and base of the skull. When these muscles remain active, they can increase tone through the sternocleidomastoid, upper trapezius and small muscles beneath the skull.

Clenching also changes how an athlete breathes and braces. A person may hold their breath, lift the shoulders or push the head forwards to create a feeling of stability. That strategy can be useful briefly during a maximal lift, but it becomes inefficient when repeated through a training session, a full AFL match or a long ride.

Neck discomfort may then appear as stiffness, a dull headache, restricted rotation or pain when looking over one shoulder. The jaw is not always the sole cause, but it can be part of the same tension pattern.

Why athletes clench during training

Jaw clenching is common during heavy resistance training, striking, sprinting and contact situations. The nervous system often associates a firm jaw with effort and protection. A lifter preparing for a deadlift may press the tongue hard into the roof of the mouth, bite down and brace every muscle before the bar has even left the floor.

Stress outside training can add to this habit. Poor sleep, work pressure, driving in peak-hour traffic around Sydney or Melbourne, and repeated screen use can leave the jaw partially clenched before an athlete reaches the gym. Caffeine and high training loads may make the pattern more noticeable.

Mouthguards can help protect teeth in contact sport, particularly in rugby league, rugby union and combat sports. They do not automatically correct neck posture or excessive jaw pressure. If an athlete bites aggressively on a mouthguard throughout training, the neck may still receive unnecessary load.

Signs the jaw may be involved

Jaw-related neck pain often comes with clues around the face and upper body. You may notice morning jaw fatigue, tooth sensitivity, clicking, tenderness near the temples or difficulty opening the mouth smoothly. A headache around the forehead or behind the eyes can also occur alongside tight neck muscles.

The symptoms may be more obvious after a stressful match, a hard gym session or a night of teeth grinding. Some athletes report that turning the head feels limited on one side, while chewing, yawning or speaking increases discomfort. Ear fullness or facial pain can occasionally be present as well.

Useful signs to track

These observations do not prove that the jaw is causing the problem. They simply help a physiotherapist, dentist or sports physician build a more accurate picture.

Assess movement before adding load

Begin with a simple resting check. Let the lips meet lightly while keeping the teeth slightly apart, then breathe quietly through the nose if comfortable. Notice whether the tongue, throat, shoulders and jaw soften. This position should feel relaxed rather than forced.

Next, rotate the neck slowly to each side and compare the range without pushing into pain. Open and close the mouth in front of a mirror, watching for deviation, clicking or a sudden shift. Avoid repeatedly testing a painful movement, as irritation can increase when an athlete chases a symmetrical result.

A quick movement screen

A movement screen is a starting point, not a diagnosis. Neck pain can also result from cervical joint irritation, nerve sensitivity, shoulder dysfunction or training errors. The aim is to identify patterns that deserve attention rather than label the source too quickly.

Practical ways to reduce unnecessary tension

Use lower-intensity drills to practise control. During warm-ups, keep the jaw loose, exhale through the effort and allow the neck to remain long. Gentle thoracic extensions, controlled chin nods and scapular movement can improve coordination without aggressively stretching sensitive tissues.

During strength work, brace the trunk without crushing the teeth together. A useful cue is “steady face, strong body”. This does not mean the jaw must hang open during a heavy lift; it means the athlete should use only the pressure needed for the task. Reduce the load if the neck tightens before the target muscles are working.

Simple habits between sessions

Do not force the jaw into a wide stretch or massage directly over a painful joint. If night grinding is suspected, a dentist can assess tooth wear and discuss suitable protection. An exercise professional can then help transfer relaxed jaw control into lifting, running and sport-specific drills.

When professional assessment is important

Seek assessment when pain persists, repeatedly returns or affects training quality. A physiotherapist with experience in neck and jaw disorders can examine cervical movement, breathing mechanics, shoulder function and jaw control. A dentist can investigate grinding, tooth damage and TMJ irritation, while a GP or sports physician can coordinate care when symptoms are complex.

Prompt medical attention is appropriate for severe or sudden headache, weakness, numbness, dizziness, fainting, difficulty swallowing, vision changes or pain following significant trauma. Jaw pain with chest pressure, sweating or breathlessness should be treated as urgent rather than assumed to be a training issue.

For Australian athletes, access may vary between a metropolitan sports clinic, a local physio near a suburban gym and services in regional areas. Many clubs already work with allied health providers, but self-treatment should not replace an examination when symptoms are escalating.

A strong programme should restore comfortable movement first, then build capacity through the neck, upper back, shoulders and trunk. Whether you train for the NRL season, a Parkrun, a surf lifesaving carnival or weekend footy, reducing jaw tension can make bracing and breathing more efficient.

Use the checks and low-load strategies above during your next warm-up, and record what changes across several sessions. If neck pain or jaw symptoms remain, book an assessment with a qualified physiotherapist, dentist or sports physician so your training can progress with a clearer plan.