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Atlas · Lower Leg

Soleus

Soleus lies beneath gastrocnemius and contributes strongly to ankle support and push-off during walking and running. A deep calf ache can involve it, but perceived depth does not distinguish muscle strain, Achilles pain or a vascular problem. Bent-knee calf work can change the training emphasis while the rest of the calf continues to contribute.

Soleus
Body region
Lower Leg
Trigger points
3
documented in this muscle
Common symptoms
4
patterns cataloged
Contributors
4
Factors to assess

Muscle overview

Symptoms and first steps

Practical first steps

  • Seek assessment before massage or exercise when calf swelling is new or unexplained.
  • For a known load-related problem, begin comfortable seated calf raises and maintain tolerable walking.
  • Use footwear that is comfortable for the task; heel cups and permanent avoidance of flat shoes are not universal soleus treatments.

When to seek assessment

  • New one-sided calf swelling, warmth, redness or unexplained pain needs urgent assessment for DVT. Do not massage, deeply palpate or start a calf exercise program while a clot is a concern.
  • Breathlessness, chest pain, coughing blood or collapse with leg symptoms is an emergency.
  • A sudden pop with loss of push-off, major bruising or inability to walk needs prompt injury assessment. Severe escalating pain with a tense calf, numbness or a cold/pale foot is an emergency.

Bent-knee loading reduces gastrocnemius contribution but does not isolate soleus. Match treatment to the assessed calf or tendon condition and the task that is limited.

Examination, palpation and treatment evidence

Illustrated overview

Soleus

Blue highlights the muscle. Crosses mark representative trigger-point sites; shaded areas show possible referred pain. These examples do not correspond one-to-one with the numbered points below. Patterns vary and cannot diagnose the cause of pain.

Illustrated overview

Soleus · Anatomy and referred pain 1

Representative source regions. The illustrated markers and pain pattern are not individual assignments to the numbered trigger points.

Open full-size image

Trigger points

1. TrP1

Location. Deep calf, under gastrocnemius

Trigger point map · Referred pain map
Soleus — Trigger point map · Referred pain mapOpen full-size image

Regional muscle reference; this is not an individual map of the selected numbered trigger point.

Pain referral. Calf and heel region

Pain Pattern

  • Calf
  • Heel region

What This Pain Feels Like

A gradually building ache during running or walking may warrant calf load assessment, but depth is not diagnostic. Record the location and dose that provoke symptoms, while recognizing that Achilles and other plantar flexors are involved.

What Patients Report

  • A deep calf ache
  • Discomfort during walking or running
  • Reduced tolerance for repeated calf raises

What Makes It Worse

  • Walking
  • Running
  • Standing
  • Going upstairs
  • High heels
  • Ankle dorsiflexion
Browse related exercises (17)

Symptoms patients report

Deep calf discomfort during sustained activity A gradually building ache during running or walking may warrant calf load assessment, but depth is not diagnostic.

Pain or fatigue with bent-knee calf loading Record the location and dose that provoke symptoms, while recognizing that Achilles and other plantar flexors are involved.

Reduced push-off endurance A decline in repeated raises or walking tolerance is a measurable functional issue.

Calf stiffness with ankle dorsiflexion Restricted motion may reflect calf, tendon or ankle-joint factors; it does not prove a contracted soleus.

Contributors to assess

A rise in running volume Longer sessions, consecutive running days and changed terrain can increase calf demand.

Return after injury or reduced training Restore both calf strength and repeated-load capacity before full activity.

Insufficient recovery from the preceding load Next-day calf function can help decide whether to repeat, reduce or progress the session.

An ankle or Achilles condition affecting loading Examine related structures rather than assuming a footwear or posture defect is the cause.

For clinicians and supervised training

Clinical reference

Assess heel pain locally and document calf symptoms with loading; unexplained calf swelling requires vascular assessment.

Anatomy and palpation

Anatomical relationships

Soleus arises from the posterior proximal tibia and fibula and joins the Achilles complex to attach to the calcaneus. It crosses the ankle but not the knee. It lies deep to gastrocnemius within the superficial posterior compartment and contributes to plantarflexion across knee positions.[3]

  • The soleus margins may be felt beside the lower gastrocnemius bulk.
  • The tibial border, fibular head and Achilles tendon orient the region; the fibular neck is not a pressure target.
  • The lower muscle-to-Achilles transition is distinct from the heel insertion.

Nearby structures. Gastrocnemius overlies soleus; the deep posterior compartment and tibial neurovascular structures lie deeper. The common fibular nerve is vulnerable near the fibular neck, and calf veins require attention when swelling is present.

Palpation

Patient position. Seated or prone with the knee comfortably flexed and ankle supported so the calf can relax. Inspect for asymmetrical swelling before any pressure.

Find the landmarks

  • Locate the lower gastrocnemius borders and Achilles tendon.
  • Use gentle contact at accessible medial or lateral calf margins, avoiding the fibular neck and popliteal region.

Examination sequence

  1. Compare light regional contact on both sides and ask whether the sensation matches the presenting complaint.
  2. Use gentle broad contact beside the lower gastrocnemius rather than pushing through it to reach an assumed deep knot.
  3. A small seated plantarflexion may help correlate local symptoms with loading; document the region, not an unverified isolated soleus point.

Document the findings

  • Familiar regional tenderness can complement the load examination.
  • A deep ache or pressure-sensitive spot does not distinguish soleus from neighboring muscle, tendon or vascular pathology.

Limits and precautions

  • Defer massage and deep pressure for acute swelling or possible DVT; a negative Homan sign is not clearance.
  • Do not add body weight over a ball to reach deeper tissue.
  • Stop for tingling, sharp pain or an unexpected change in foot sensation or color.
[3][4][6]

Examination and tests

2

Ankle dorsiflexion with the knee straight and bent[3][4]

Compare ankle motion and symptom behavior as gastrocnemius length changes.

Position
Supported standing lunge on level ground, tested heel down and foot facing forward; first a straight rear knee, then a bent knee. Use a seated or supine clinician-assisted version if weight bearing is unsuitable.
Technique
Move slowly toward dorsiflexion without lifting the heel or rolling onto the inside of the foot. Record angle or a consistently measured distance and the pain location. Repeat with knee flexion using the same heel and foot alignment; compare sides.
Positive finding
Reproducible restriction, familiar calf pain or a change between positions is an impairment finding. No single difference establishes a muscle lesion.
Interpretation
Greater motion with knee flexion can suggest a gastrocnemius contribution to limitation. Restriction in both positions also invites ankle-joint, Achilles and other calf assessment.
Limitations
Knee flexion reduces gastrocnemius length demand but does not isolate soleus. Foot posture, joint restriction, pain and measurement technique affect the result. Do not force stretch during acute injury or suspected DVT.

Bent-knee calf-raise loading assessment[3][4][5]

Assess plantar-flexor tolerance with gastrocnemius in a shortened knee position.

Position
Seated on a stable chair with knee near a right angle and the forefoot flat; progress to supported standing with a maintained knee bend if suitable.
Technique
Raise and lower the heel through a comfortable repeatable height. Record knee angle, support, external load, repetitions, pain location and fatigue. A clinician can add measured resistance over the distal thigh without loading the kneecap. Compare sides using the same setup.
Positive finding
Familiar calf pain or a reproducible loss of heel height or capacity is an impairment finding, not a diagnosis.
Interpretation
Use the measured starting capacity to choose bent-knee strength work, while comparing straight-knee performance and Achilles symptoms.
Limitations
Seated unloaded raises may be too easy to reveal a strength deficit. Knee flexion shifts contribution without isolating soleus; tendon pain, effort and the chosen load affect performance. There is no validated trigger-point cutoff.

Distinguishing other causes

Deep vein thrombosis[6]

Findings that matter. New unilateral swelling or unexplained calf pain, especially with recent immobilization, surgery, prior clot or other thrombotic risk. DVT may occur without every typical sign.

Next step. Urgent clinical assessment using the DVT probability pathway. Neither a tender muscle nor a negative Homan sign excludes DVT; defer massage and loading.

Achilles tendinopathy or rupture[5][4]

Findings that matter. Pain located in the tendon with loading and first-step stiffness suggests tendon involvement. A sudden pop, altered resting ankle position or marked loss of push-off raises concern for rupture.

Next step. Examine the Achilles separately; a clinician can assess tendon continuity and request imaging when uncertain. A possible rupture requires prompt assessment before loading.

Calf muscle strain[4]

Findings that matter. A distinct running, jumping or acceleration event, focal pain on loading and subsequent bruising suggests injury; soleus symptoms can also develop less abruptly.

Next step. Assess walking, pain on stretch and contraction, and the extent of impairment. Use imaging selectively if severity or diagnosis is unclear.

Vascular or compartment-related exertional pain[3][4]

Findings that matter. Predictable exertional calf pain that settles with rest, marked tightness with exercise, numbness or a change in foot temperature/color needs assessment beyond trigger points.

Next step. Arrange vascular or sports-medicine examination as appropriate. Acute severe escalating pain, neurological change or a cold foot needs emergency assessment.

Local heel or ankle disorder[5][3]

Findings that matter. Pain focused at the plantar heel, Achilles insertion or another ankle structure may persist independently of calf tenderness.

Next step. Examine the heel and ankle directly. Do not treat a presumed soleus referral as an explanation for unexplained heel pain.

Treatment selection and progression

Clinician-delivered care

Calf shockwave as an adjunct in a plantar-heel-pain pathway[1]

Consider when. Diagnosed plantar fasciitis when a clinician is already considering heel ESWT and associated calf tenderness is present.

Assess the heel and Achilles separately, then discuss whether adding calf treatment to the heel treatment is worthwhile. This is a heel-pain indication, not treatment for unexplained calf pain or acute strain.

Dose and review
A small study reported three treatments; ambiguous timing and unverified device mode are not converted into a prescription.
Progression
Compare first-step heel pain and walking tolerance at about eight weeks after the course.
Stop or reassess
Reassess new unilateral swelling, vascular symptoms or an acute loss of push-off before treatment.
Evidence and limits
A 40-person trial favored heel-plus-calf ESWT over heel alone for pain and function at eight-week follow-up. Both groups received heel treatment, so it does not establish effectiveness for isolated gastrocnemius/soleus pain.

Clinician-delivered care

Soleus dry needling for assessed medial tibial stress syndrome[2]

Consider when. Athletes with diagnosed medial tibial stress syndrome (MTSS), after focal tibial bone stress injury and other exertional leg disorders have been considered.

A sports clinician may offer soleus DN with stretching for short-term symptom relief while addressing running load. Tibial pain needs its own examination; a tender calf alone does not establish MTSS.

Dose and review
The trial used three sessions in one week with stretching; this is the studied course, not a return-to-running protocol.
Progression
Recheck walking and tibial pain at one week, then use a separate graded loading and return-to-sport assessment.
Stop or reassess
Stop for increasingly focal bone pain, pain at rest, new swelling or neurological symptoms and revisit the diagnosis.
Evidence and limits
In 50 university athletes, reported pain after one week was 2/10 with DN plus stretching versus 7 with normal activity; dorsiflexion did not improve significantly. No sham, combined treatment and absent long-term/sport endpoints limit inference.

Exercise and rehabilitation

Progressive seated calf raises[4][3]

Consider when. An assessed calf load-tolerance problem when supported seated work is a manageable starting point.

Sit with the knee near a right angle. Raise and lower the heel on level ground while the forefoot stays planted. Add a comfortable padded load over the distal thigh, away from the kneecap, only if unloaded raises are easy.

Dose and review
Clinician-adjusted example: 2 sets of 10 controlled repetitions on alternate days. Choose a load that preserves repeatable height and does not worsen next-day walking. This is not a validated soleus trigger-point prescription.
Progression
Increase resistance before indefinitely adding easy repetitions, then consider supported bent-knee standing raises. Retain straight-knee work when the activity requires it.
Stop or reassess
Stop for sharp pain, a new limp, swelling or loss of push-off. Reduce resistance for a sustained next-day decline.
Evidence and limits
Expert calf-strain rehabilitation supports restoring strength in relevant positions. Knee position biases loading but does not isolate soleus; exact dosage is extrapolated.

Exercise and rehabilitation

Build bent-knee weight-bearing capacity[4][5]

Consider when. A person who tolerates seated resistance and needs greater standing, stair or running capacity.

Hold a stable support in a shallow squat and raise both heels without straightening the knees. Use a comfortable heel height on level ground. Choose enough hand support to maintain control.

Dose and review
Clinician-adjusted example: 2 sets of 6–8 slow repetitions on 2 nonconsecutive days weekly. Begin with less if needed; this is a task-loading example, not trial-derived soleus dosing.
Progression
Reduce hand support, add load or move toward single-leg work one step at a time. Do not lower below a step by default, especially if the Achilles insertion is painful.
Stop or reassess
Stop for worsening focal pain or loss of movement quality; obtain review for a pop, acute swelling or neurological symptoms.
Evidence and limits
Calf rehabilitation principles support progressing toward weight-bearing demand. Achilles guideline evidence applies to diagnosed tendon disease and cannot be presented as proof of muscle trigger-point treatment.

Exercise and rehabilitation

Stage the return to running and jumping[4]

Consider when. A medically assessed calf problem once walking and controlled calf raises are tolerated; not the initial response to acute swelling or a possible tear.

Build comfortable brisk walking first. Add low-amplitude bilateral hopping only when strength work is tolerated and a clinician considers it suitable; then introduce short easy run/walk intervals on level ground. Restore speed, hills and cutting separately.

Dose and review
Clinician-adjusted example: an initial run/walk exposure might use 1 minute of easy jogging and 2 minutes of walking for 4 cycles, with a recovery day before the next running exposure. This is an illustrative starting structure, not a validated return-to-sport protocol.
Progression
Review the response during the session and the following day. Increase one demand at a time and include the actual sport or work task before unrestricted return; a calendar date alone is insufficient.
Stop or reassess
Stop for a new sharp focal pain, limp, swelling, a pop or deteriorating push-off. Reduce the next exposure if next-day walking or calf-raise performance declines.
Evidence and limits
Calf-strain expert interviews support staged loading and task-based reassessment. Evidence does not establish these interval numbers or prove an effect on calf trigger points.

Clinician-delivered care

Calf and ankle manual care for plantar heel pain[8][7]

Consider when. Assessed plantar heel pain with a relevant calf flexibility or ankle-joint mobility deficit.

A clinician selects tolerable calf soft-tissue mobilization and, when examination indicates it, ankle-joint mobilization. Record bent-knee dorsiflexion and walking symptoms; broad calf contact does not demonstrate isolated treatment of soleus.

Dose and review
The heel-pain guideline does not prescribe a single pressure dose or visit count. Agree a brief trial directed at the measured deficit and reassess the movement after treatment.
Progression
Continue only if ankle motion or walking improves in a useful way. Pair manual care with the stretching, loading and footwear plan chosen for the heel diagnosis.
Stop or reassess
Do not apply calf massage to unexplained swelling, suspected thrombosis, an acute tear or focal bone pain. Reassess lasting worsening or failure to improve function.
Evidence and limits
The 2023 plantar-heel-pain guideline recommends joint and soft-tissue mobilization for relevant lower-limb mobility and calf flexibility deficits. This supports regional care; the gastrocnemius manual-treatment trial did not establish an isolated soleus treatment effect or a soleus-MPS protocol.

Reassessment and follow-up

  • Repeat bent-knee calf raises with the same angle, load and heel height, noting symptoms and quality.
  • Compare straight-knee capacity so a changed knee angle is not mistaken for full calf recovery.
  • Track walking and running duration plus next-day calf and Achilles symptoms.
  • Reassess dorsiflexion and any new swelling; local tenderness alone is not the recovery target.

Evidence and sources

  1. Moghtaderi et al. Extracorporeal shock wave therapy of gastroc-soleus trigger points in patients with plantar fasciitis

    2014 · Randomized clinical trial

    40 patients with plantar fasciitis; heel plus calf-point ESWT versus heel alone, outcomes at eight weeks after treatment. Device mode and schedule wording are not sufficiently clear for a protocol; not an isolated-calf-pain trial.

  2. Singh et al. Short-term effectiveness of dry needling on pain and ankle range of motion in athletes with medial tibial stress syndrome

    2025 · Randomized clinical trial

    Online 2024, 2025 issue; 50 university athletes, soleus DN plus stretching versus normal activity. Three sessions in one week; no durable follow-up or return-to-sport endpoint.

  3. Anatomy, Bony Pelvis and Lower Limb: Leg Posterior Compartment

    2026 · Anatomy reference

    Updated May 2026; muscle attachments, compartment and neurovascular relationships. Knee angle changes relative loading but cannot isolate a single plantar flexor.

  4. The Assessment, Management and Prevention of Calf Muscle Strain Injuries: A Qualitative Study of the Practices and Perspectives of 20 Expert Sports Clinicians

    2022 · Primary qualitative study

    Elite-sport expert interviews support a staged, criteria-based approach. They do not establish treatment efficacy, a universal dose or a guaranteed return date.

  5. Achilles Pain, Stiffness, and Muscle Power Deficits: Midportion Achilles Tendinopathy Revision 2024

    2024 · Clinical practice guideline

    Evidence for progressive tendon loading applies to diagnosed midportion Achilles tendinopathy, not automatically to calf trigger points, acute tears or insertional disease.

  6. Venous thromboembolic diseases: diagnosis, management and thrombophilia testing

    2023 · Clinical guideline

    Suspected DVT requires a clinical probability pathway with D-dimer and/or ultrasound as indicated. A muscle test or Homan sign cannot exclude DVT.

  7. Effectiveness of myofascial trigger point manual therapy combined with a self-stretching protocol for the management of plantar heel pain: a randomized controlled trial

    2011 · Randomized trial

    60 people with plantar heel pain; gastrocnemius pressure and longitudinal stroking plus calf/plantar-fascia stretching versus stretching alone. SF-36 physical function and bodily pain favored combined care at the one-month treatment endpoint. The described manual target was gastrocnemius, not an isolated soleus intervention; later durability was not established.

  8. Heel Pain–Plantar Fasciitis: Revision 2023

    2023 · Clinical practice guideline

    Recommends lower-extremity joint and soft-tissue mobilization for relevant joint mobility and calf flexibility deficits in plantar heel pain. Supports examination-led regional care, not a soleus-MPS diagnosis or one fixed manual-treatment dose.

Associated Trigger Points