ROM Normal Values Database

Why you need a ROM reference you can trust

Range of motion data is scattered across textbooks, research papers, clinical manuals, and outdated websites that cite each other in circles. If you search for “normal hip internal rotation,” you will find answers ranging from 25 degrees to 50 degrees depending on the source, the testing position, the population, and whether the author measured active or passive range.

This article consolidates ROM norms from peer-reviewed literature (American Academy of Orthopaedic Surgeons standards, Norkin & White clinical measurement texts, Boone & Azen population studies, and our own database of 500+ assessments) into a single, practical reference. Every value specifies the testing position, the type of motion (active vs. passive), and the population it applies to.

Bookmark this page. You will use it.

How to read these tables

Each table follows the same format:

• Motion: The joint movement being measured
• Normal range: The expected range for a healthy adult (18-60), passive measurement unless noted
• Functional minimum: The minimum range needed for common movements (squat, press, deadlift, gait)
• Red flag: The value below which referral or modified programming is strongly recommended
• Notes: Testing position, common asymmetries, sport-specific considerations

All values are in degrees. Ranges represent population averages with typical standard deviations of 5-10 degrees. Individual variation is normal — the ranges are guidelines, not absolutes.

Hip

The hip is the most information-dense joint complex for coaching purposes. It drives lower body mechanics, pelvic position, and lumbar spine compensation. Six movements matter.

Motion	Normal Range	Functional Minimum	Red Flag	Notes
Flexion	120-135	110 (squat to parallel)	Below 90	Tested supine, knee bent. Limited by hamstring if knee straight.
Extension	10-20 past neutral	10 (full gait stride)	0 (cannot reach neutral)	Thomas test position. Most undertested motion. Desk workers commonly lose this.
Internal rotation	35-45	25 (symmetrical squat depth)	Below 20 bilateral	Tested seated, hip at 90 degrees flexion. The single most diagnostic ROM test.
External rotation	40-50	30 (sumo stance, turnout)	Below 25 bilateral	Tested seated, hip at 90 degrees flexion. Total arc (IR+ER) matters most.
Abduction	40-50	30 (wide stance, lateral movement)	Below 20	Tested supine, knee straight. Often limited by adductor tone, not length.
Adduction	20-30	15 (crossing midline, gait)	Below 10	Tested supine. Rarely the primary constraint in coaching contexts.

Hip rotation: the total arc concept

Individual IR and ER numbers are useful. The total arc of rotation (IR + ER on each side) is more diagnostic. A healthy hip total arc is 75-95 degrees. The distribution within that arc tells the structural story.

Total Arc	IR/ER Distribution	Structural Indication
80 degrees (40 IR / 40 ER)	Balanced	Neutral pelvic position on this side
80 degrees (25 IR / 55 ER)	ER dominant	Extension bias, pelvis anteriorly tilted on this side
80 degrees (50 IR / 30 ER)	IR dominant	Flexion or internal rotation bias, pelvis posteriorly oriented
55 degrees (20 IR / 35 ER)	Reduced total arc	Capsular restriction, possible degenerative change if age >50
110 degrees (55 IR / 55 ER)	Excessive total arc	Hypermobility, possible ligamentous laxity

Hip ROM by age

Age Group	Flexion	Extension	IR	ER	Total Arc
18-29	130-140	15-20	40-50	45-55	85-105
30-39	125-135	12-18	35-45	40-50	75-95
40-49	120-130	10-15	30-40	35-45	65-85
50-59	115-125	8-12	25-35	30-40	55-75
60-69	110-120	5-10	20-30	25-35	45-65
70+	100-115	0-8	15-25	20-30	35-55

The decline in total arc with age is well-documented and gradual. A 55-year-old with a total arc of 50 degrees is within expected range. A 30-year-old with the same measurement warrants investigation.

Hip ROM by sport

Sport	IR (typical range)	ER (typical range)	Notable Asymmetries
Powerlifting	25-35	45-55	ER dominant bilateral (extension training bias)
Olympic weightlifting	35-45	40-50	More balanced than powerlifting (deep receiving positions maintain IR)
Running	30-40	35-45	Can develop side-to-side asymmetry from repetitive unilateral loading
Soccer/football	35-45	40-50	Kicking leg often shows more IR on follow-through side
Baseball (pitchers)	40-55 (lead) / 30-40 (trail)	35-45 (lead) / 45-55 (trail)	Lead hip IR is higher, trail hip ER is higher — sport adaptation
Swimming	40-50	45-55	Generally higher total arc from kick mechanics
Ice hockey	30-40	50-60	ER dominant (skating stride demands external rotation)
Gymnastics	45-55	50-60	High total arc, hypermobility common

Knee

The knee is simpler than the hip — two primary motions — but the functional minimums are strict.

Motion	Normal Range	Functional Minimum	Red Flag	Notes
Flexion	135-150	120 (full-depth squat)	Below 110	Tested supine or prone. Post-surgical knees often plateau at 120-130.
Extension	0 (full straight) to 5 (slight hyperextension)	0 (must reach straight)	More than -5 (lacks 5 degrees of full extension)	Tested supine with heel propped. Extension deficit is more functionally limiting than flexion deficit.

Knee flexion considerations

Knee flexion above 135 degrees is rarely the bottleneck in coaching. When a client cannot squat deep, the hip and ankle are almost always the constraint, not the knee. Knee flexion becomes the bottleneck only in post-surgical cases (ACL reconstruction, meniscectomy, total knee replacement) where scar tissue or swelling restricts bend.

Full knee extension (0 degrees) matters more than most coaches realize. A 3-5 degree extension deficit changes gait mechanics, increases quadriceps energy cost during standing, and can create compensatory hip hiking during walking. Always test and record extension, not just flexion.

Ankle

Ankle dorsiflexion is the gatekeeper of squat mechanics. It is also the easiest ROM to test and one of the most responsive to intervention.

Motion	Normal Range	Functional Minimum	Red Flag	Notes
Dorsiflexion (knee straight)	10-20	10 (heel contact during gait)	Below 5	Gastrocnemius-limited. Tests the two-joint muscle.
Dorsiflexion (knee bent)	20-30	15 (squat depth, landing)	Below 10	Soleus-limited. The coaching-relevant test for squat depth.
Plantarflexion	40-55	30 (push-off during gait)	Below 25	Rarely limited in healthy populations.
Inversion	30-40	20 (trail surface adaptation)	Below 15	More relevant for sport than gym training.
Eversion	15-25	10 (pronation during gait)	Below 5	Limited eversion correlates with lateral ankle sprain history.

The wall test for dorsiflexion

The weight-bearing lunge test (wall test) is the fastest way to screen ankle dorsiflexion. Client places foot flat on the floor, knee touches the wall. Measure the distance from the big toe to the wall at the farthest point where the knee can touch while the heel stays down.

Distance from wall	Approximate dorsiflexion (knee bent)	Interpretation
Less than 5 cm	Less than 15 degrees	Restricted — will limit squat depth
5-10 cm	15-25 degrees	Adequate for most training
10-15 cm	25-35 degrees	Good mobility
More than 15 cm	More than 35 degrees	Above average, check for hypermobility

Ankle ROM by gender

Women typically show 3-5 degrees more ankle dorsiflexion than men across all age groups. This is partly structural (ligament laxity, bone morphology) and partly habitual (footwear patterns). When comparing a female client’s dorsiflexion to norms, use the upper end of the range.

Shoulder

The shoulder complex has more degrees of freedom than any other joint. Five movements capture the coaching-relevant ROM.

Motion	Normal Range	Functional Minimum	Red Flag	Notes
Flexion (overhead reach)	170-180	160 (overhead press, pull-up)	Below 150	Tested supine to eliminate lumbar extension compensation. Standing flexion inflates the number.
Abduction	170-180	150 (overhead movements)	Below 140	Often mirrors flexion restrictions.
Internal rotation (90/90)	70-80	50 (bench press setup, behind-back reach)	Below 40	Tested at 90 degrees abduction. Key for pressing health.
External rotation (90/90)	90-100	70 (throwing, overhead position)	Below 60	Tested at 90 degrees abduction. Total arc with IR matters.
Horizontal adduction	130-140	100 (cross-body movement)	Below 90	Posterior capsule tightness marker. Common in bench-heavy lifters.

Shoulder total arc of rotation

Like the hip, the shoulder’s total rotation arc (IR + ER at 90 degrees abduction) is more diagnostic than individual numbers.

Total Arc	Distribution	Interpretation
160-180	70 IR / 90 ER	Normal, balanced shoulder
180+	Variable	Above average. Common in overhead athletes, gymnasts.
160-180	40 IR / 130 ER	GIRD (Glenohumeral Internal Rotation Deficit). Common in throwers. Total arc preserved but shifted toward ER.
Below 140	Variable	Capsular restriction. Evaluate for adhesive capsulitis if acute onset.

Shoulder ROM in overhead athletes

Overhead athletes (baseball, tennis, volleyball, swimming) develop predictable adaptations in the dominant shoulder:

Measurement	Dominant Arm (typical)	Non-Dominant Arm (typical)	Acceptable Asymmetry
External rotation	95-115	85-95	Up to 15 degrees more on dominant is normal
Internal rotation	40-55	65-80	Up to 20 degrees less on dominant (GIRD)
Total arc	145-170	150-175	Should be within 10 degrees bilateral

The key clinical rule: total arc asymmetry greater than 10 degrees between arms is concerning regardless of how the individual numbers look. A dominant arm with 110 degrees ER and 40 degrees IR (total 150) compared to a non-dominant arm with 90 ER and 75 IR (total 165) shows a 15-degree total arc deficit. This correlates with shoulder injury risk in the literature.

Thoracic Spine

Thoracic rotation is the most undertested range of motion in coaching. It affects overhead mechanics, rotational sport performance, breathing, and shoulder health.

Motion	Normal Range	Functional Minimum	Red Flag	Notes
Rotation (each side)	35-50	25 (golf swing, throwing, rotational training)	Below 20	Tested seated to eliminate hip contribution. Lumbar rotation is only 5-10 degrees — most trunk rotation is thoracic.
Extension	20-30 (total thoracic)	15 (overhead position, spinal health)	Below 10	Difficult to isolate. Tested prone or quadruped.
Flexion	30-40 (total thoracic)	20 (forward bending tasks)	Excessive (>50) more concerning than limited	Rarely needs intervention in coaching. Excessive kyphosis is the issue, not limited flexion.

Thoracic rotation asymmetry

Bilateral thoracic rotation should be within 5-8 degrees of symmetric. Asymmetry greater than 10 degrees suggests a rotational compensation pattern, often linked to pelvic rotation and rib position.

Finding	Common Association
Left rotation greater than right	Left-oriented pelvic pattern (most common default)
Right rotation greater than left	Right-oriented or compensatory pattern
Bilateral restriction	Extension pattern, ribcage locked
Bilateral hypermobility	Flexible spine, check stability under load

Cervical Spine

Cervical ROM matters for overhead lifters, contact sport athletes, and anyone with a desk job. The numbers are consistent across the literature.

Motion	Normal Range	Functional Minimum	Red Flag	Notes
Rotation (each side)	70-90	60 (shoulder check, pool turns)	Below 50, especially asymmetric	Tested seated, chin level. Asymmetry >10 degrees warrants investigation.
Flexion (chin to chest)	45-50	35	Below 25	Limited flexion + pain = refer for imaging
Extension (look up)	55-70	40	Below 30, with symptoms	Age-related decline is significant. 70+ may have 30-40 degrees normally.
Lateral flexion (ear to shoulder)	40-45	30	Below 20	Often asymmetric in desk workers (phone side vs. non-phone side)

Cervical ROM by age

Cervical range of motion declines more steeply with age than any other spinal region. This is normal and important to account for.

Age Group	Rotation (each side)	Flexion	Extension
20-29	75-90	45-50	60-70
30-39	70-85	40-48	55-65
40-49	65-80	38-45	48-58
50-59	60-75	35-42	40-50
60-69	50-65	30-38	30-42
70+	40-55	25-35	25-35

A 65-year-old with 55 degrees of cervical rotation is normal. A 35-year-old with 55 degrees is restricted. Always compare to age-appropriate norms.

Wrist and Forearm

Wrist ROM matters for front rack position, push-ups, handstands, and any grip-intensive training.

Motion	Normal Range	Functional Minimum	Red Flag	Notes
Extension (dorsiflexion)	60-70	40 (push-up, handstand position)	Below 30	Limiting factor for front rack in Olympic lifts
Flexion (palmar flexion)	70-80	50 (general tasks)	Below 40	Less commonly limited
Radial deviation	15-25	10	Below 5	Relevant for racquet sports
Ulnar deviation	30-40	20	Below 15	Relevant for golf, racquet sports
Forearm pronation	75-85	60	Below 50	Test with elbow at side, bent 90 degrees
Forearm supination	80-90	60	Below 50	Limited supination affects bicep curl position, overhead grip

Gender differences across joints

Women generally show 3-8 degrees more passive ROM than men across most joints. This is consistent in the literature and has practical implications for norm comparison.

Joint/Motion	Female Advantage (degrees)	Notes
Hip flexion	+5 to +10	Pelvic morphology, ligament laxity
Hip IR	+3 to +5	Femoral anteversion differences
Hip ER	+3 to +5	Capsular laxity
Ankle dorsiflexion	+3 to +5	Consistent across studies
Shoulder flexion	+5 to +8	More pronounced overhead
Thoracic rotation	+3 to +5	Less data available, trend is consistent
Cervical ROM	+2 to +5	All directions, smaller effect size

When assessing female clients, use the upper end of normal ranges. When assessing male clients, use the lower end. A female client with 35 degrees of hip IR is at the bottom of her gender norm, even though it appears “normal” on a combined-gender table.

Putting the data to work

Numbers on a page are a reference. Numbers connected to a structural pattern classification are a coaching tool.

The AKMI ROM Estimator takes the measurements from this reference guide and maps them to structural patterns. Enter your client’s bilateral hip rotation, ankle dorsiflexion, shoulder rotation, and thoracic rotation, and the tool returns a pattern probability: which of the six structural patterns best fits this data, and what that means for programming.

The complete assessment methodology — including testing positions, measurement protocols, and the pattern classification system — is described in our biomechanical assessment guide.

Quick reference card

For coaches who want a single-page printable reference, here are the critical values:

Lower extremity essentials (6 tests)

• Hip IR: 35-45 degrees (seated, 90 degrees hip flexion)
• Hip ER: 40-50 degrees (seated, 90 degrees hip flexion)
• Hip extension: 10-20 degrees past neutral (Thomas test)
• Knee extension: 0 degrees (must reach full straight)
• Ankle DF (knee bent): 20-30 degrees
• Ankle DF (knee straight): 10-20 degrees

Upper extremity essentials (4 tests)

• Shoulder flexion: 170-180 degrees (supine)
• Shoulder IR (90/90): 70-80 degrees
• Shoulder ER (90/90): 90-100 degrees
• Shoulder horizontal adduction: 130-140 degrees

Spine essentials (4 tests)

• Thoracic rotation: 35-50 degrees each side
• Cervical rotation: 70-90 degrees each side

These 14 measurements cover 95% of the structural information a strength coach needs. The full AKMI protocol adds 4 supplementary tests for complete pattern classification.

---

Enter your ROM measurements into the AKMI ROM Estimator and get instant structural pattern probability. Read the ROM testing guide for measurement technique and protocol details.