BeFreed
    Categories>Health>Shoulder Impingement: Causes of Subacromial Impingement Syndrome

    Shoulder Impingement: Causes of Subacromial Impingement Syndrome

    14 min
    |
    |
    15 mag 2026
    HealthScienceEducation

    Learn about Subacromial Impingement Syndrome (SIS), a common cause of shoulder pain where the supraspinatus tendon and bursa become pinched in a crowded space.

    Shoulder Impingement: Causes of Subacromial Impingement Syndrome

    Miglior citazione da Shoulder Impingement: Causes of Subacromial Impingement Syndrome

    “

    Subacromial impingement is a 'crowded house' situation where the focus must shift from just strengthening a tendon to integrated shoulder mechanics. You can create more room through better mechanics, stronger stabilizers, and smarter movement patterns rather than relying on surgery.

    ”

    Questa lezione audio è stata creata da un membro della comunità BeFreed

    Domanda di input

    Teaching on assessment, testing, investigation, diagnosis and physiotherapy treatment of shoulder impingement syndrome

    Voci dei presentatori
    Lenaplay
    Milesplay
    Stile di apprendimento
    Veloce
    Fonti di conoscenza
    Shoulder Impingement Syndrome - StatPearls - NCBI Bookshelf
    link
    https://www.ncbi.nlm.nih.gov/sites/books/NBK554518/
    Diagnosing and Managing Impingement Syndrome of the Shoulder - OrthoNet AI
    link
    https://www.orthonet.on.ca/2025/07/diagnosing-and-managing-impingement-syndrome-of-the-shoulder/
    Effect of scapular stabilization exercises on subacromial pain (impingement) syndrome: a systematic review and meta-analysis of randomized controlled trials - PMC
    link
    http://www.ncbi.nlm.nih.gov/pmc/articles/10940535
    Evidence-based approach to the shoulder examination for ...
    link
    https://link.springer.com/article/10.1186/s12891-024-08144-z
    Conservative Impingement Syndrome
    link
    https://www.allinahealth.org/-/media/files/ortho/shoulder/01-conservative-impingement-syndrome.pdf
    Optimal management of shoulder impingement syndrome - PMC
    link
    https://ncbi.nlm.nih.gov/pmc/articles/PMC3945046/

    Domande frequenti

    Subacromial Impingement Syndrome, or SIS, is a progressive orthopedic condition characterized by a "crowded house" effect within the shoulder. It occurs when the tiny subacromial space, typically only 1 to 1.5 centimeters high, narrows and pinches structures like the supraspinatus tendon, the bursa, and the long head of the biceps. This syndrome is a leading cause of shoulder pain, accounting for approximately 44% to 65% of clinical shoulder complaints.

    Shoulder impingement is often caused by a lack of space within the subacromial area, which can be due to an individual's physical anatomy or specific movement patterns. While many associate it with bone spurs, it is actually a dynamic clinical syndrome that overlaps with rotator cuff-related pain. When the space narrows, the internal tendons and bursa are squashed, leading to symptoms that can progress from simple swelling to more serious tissue damage.

    According to the Neer stages of this orthopedic condition, the syndrome is progressive. It typically begins as Stage I, which involves reversible edema or swelling within the shoulder tissues. If the impingement continues without intervention, it can lead to Stage II and beyond, resulting in more permanent changes such as fibrosis, tendinosis, and eventually full-blown rotator cuff tears as the tendons and bursa remain chronically pinched.

    In a crowded subacromial space, several key structures are at risk of being pinched or squashed. These include the supraspinatus tendon, the subacromial bursa, and the long head of the biceps tendon. Because these tissues must all function within a very narrow gap of about 1 to 1.5 centimeters, any reduction in space due to inflammation or structural issues can lead to the cluster of symptoms known as Subacromial Impingement Syndrome.

    Scopri di più

    Fix hip mobility and shoulder injuries

    Fix hip mobility and shoulder injuries

    PIANO DI APPRENDIMENTO

    Fix hip mobility and shoulder injuries

    This learning plan is essential for athletes and sedentary professionals alike who struggle with persistent joint pain or restricted movement. It provides a comprehensive roadmap from understanding anatomical foundations to implementing long-term injury prevention habits.

    1 h 37 m•3 Sezioni
    Manage hip, back and knee pain

    Manage hip, back and knee pain

    PIANO DI APPRENDIMENTO

    Manage hip, back and knee pain

    Chronic pain often stems from a complex mix of physical inflammation and nervous system responses. This plan is designed for individuals seeking a science-based, non-invasive approach to regaining mobility and managing joint discomfort through expert-led techniques.

    2 h 5 m•4 Sezioni
    Study body & posture basics

    Study body & posture basics

    PIANO DI APPRENDIMENTO

    Study body & posture basics

    Poor posture affects millions of people and contributes to chronic pain, reduced mobility, and decreased quality of life, yet most never learn the fundamentals of body mechanics. This learning plan is ideal for anyone experiencing postural discomfort, desk workers, fitness enthusiasts seeking injury prevention, or individuals wanting to move with greater ease and confidence throughout their lives.

    1 h 40 m•3 Sezioni
    Heal shame & master conflicts

    Heal shame & master conflicts

    PIANO DI APPRENDIMENTO

    Heal shame & master conflicts

    Shame and unresolved conflicts damage relationships, career growth, and mental health, yet most people never learn the skills to address them effectively. This learning plan combines research-backed approaches from psychology, negotiation science, and relationship studies to help anyone struggling with self-criticism, avoiding difficult conversations, or feeling stuck in recurring conflicts. Whether you're navigating workplace tensions, personal relationships, or your own inner critic, these skills are fundamental to living authentically and building meaningful connections.

    2 h 36 m•4 Sezioni
    Social,carer,confidence and not self doubt

    Social,carer,confidence and not self doubt

    PIANO DI APPRENDIMENTO

    Social,carer,confidence and not self doubt

    This plan is designed for professionals and individuals who feel held back by imposter syndrome or social anxiety. It provides a comprehensive roadmap to bridge the gap between internal self-doubt and external leadership, making it ideal for those seeking career growth and deeper social connections.

    3 h 40 m•4 Sezioni
    Become an orthopedic Specialist

    Become an orthopedic Specialist

    PIANO DI APPRENDIMENTO

    Become an orthopedic Specialist

    This comprehensive plan bridges the gap between anatomical theory and advanced surgical practice. It is designed for medical professionals and aspiring surgeons looking to master diagnostic excellence and innovative patient care.

    3 h 17 m•4 Sezioni
    Self healing

    Self healing

    PIANO DI APPRENDIMENTO

    Self healing

    Self-healing is essential for anyone carrying unprocessed trauma, chronic self-criticism, or disconnection from their body and emotions. This learning plan offers a compassionate, structured path for those ready to understand their wounds, release stored pain, and cultivate the self-love necessary for genuine transformation and lasting peace.

    2 h•4 Sezioni
    Listen more to understand social anxiety

    Listen more to understand social anxiety

    PIANO DI APPRENDIMENTO

    Listen more to understand social anxiety

    This learning plan is essential for anyone who feels paralyzed by self-consciousness or social pressure. It provides a holistic approach, combining scientific understanding with practical CBT and mindfulness skills to help individuals move from isolation to meaningful connection.

    3 h 7 m•4 Sezioni

    Creato da alumni della Columbia University a San Francisco

    BeFreed Riunisce Una Community Globale Di 1,000,000 Menti Curiose
    Scopri di piu su come si parla di BeFreed nel web

    "Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

    @Moemenn
    platform
    star
    star
    star
    star
    star

    "I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

    @Chloe, Solo founder, LA
    platform
    comments
    12
    likes
    117

    "Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

    @Raaaaaachelw
    platform
    star
    star
    star
    star
    star

    "Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

    @Matt, YC alum
    platform
    comments
    12
    likes
    108

    "Reading used to feel like a chore. Now it’s just part of my lifestyle."

    @Erin, Investment Banking Associate , NYC
    platform
    comments
    254
    likes
    17

    "Feels effortless compared to reading. I’ve finished 6 books this month already."

    @djmikemoore
    platform
    star
    star
    star
    star
    star

    "BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

    @Pitiful
    platform
    comments
    96
    likes
    4.5K

    "BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

    @SofiaP
    platform
    star
    star
    star
    star
    star

    "BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

    @Jaded_Falcon
    platform
    comments
    201
    thumbsUp
    16

    "It is great for me to learn something from the book without reading it."

    @OojasSalunke
    platform
    star
    star
    star
    star
    star

    "The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

    @Leo, Law Student, UPenn
    platform
    comments
    37
    likes
    483

    "Makes me feel smarter every time before going to work"

    @Cashflowbubu
    platform
    star
    star
    star
    star
    star

    Creato da alumni della Columbia University a San Francisco

    BeFreed Riunisce Una Community Globale Di 1,000,000 Menti Curiose
    Scopri di piu su come si parla di BeFreed nel web

    "Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

    @Moemenn
    platform
    star
    star
    star
    star
    star

    "I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

    @Chloe, Solo founder, LA
    platform
    comments
    12
    likes
    117

    "Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

    @Raaaaaachelw
    platform
    star
    star
    star
    star
    star

    "Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

    @Matt, YC alum
    platform
    comments
    12
    likes
    108

    "Reading used to feel like a chore. Now it’s just part of my lifestyle."

    @Erin, Investment Banking Associate , NYC
    platform
    comments
    254
    likes
    17

    "Feels effortless compared to reading. I’ve finished 6 books this month already."

    @djmikemoore
    platform
    star
    star
    star
    star
    star

    "BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

    @Pitiful
    platform
    comments
    96
    likes
    4.5K

    "BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

    @SofiaP
    platform
    star
    star
    star
    star
    star

    "BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

    @Jaded_Falcon
    platform
    comments
    201
    thumbsUp
    16

    "It is great for me to learn something from the book without reading it."

    @OojasSalunke
    platform
    star
    star
    star
    star
    star

    "The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

    @Leo, Law Student, UPenn
    platform
    comments
    37
    likes
    483

    "Makes me feel smarter every time before going to work"

    @Cashflowbubu
    platform
    star
    star
    star
    star
    star

    "Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

    @Moemenn
    platform
    star
    star
    star
    star
    star

    "I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

    @Chloe, Solo founder, LA
    platform
    comments
    12
    likes
    117

    "Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

    @Raaaaaachelw
    platform
    star
    star
    star
    star
    star

    "Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

    @Matt, YC alum
    platform
    comments
    12
    likes
    108

    "Reading used to feel like a chore. Now it’s just part of my lifestyle."

    @Erin, Investment Banking Associate , NYC
    platform
    comments
    254
    likes
    17

    "Feels effortless compared to reading. I’ve finished 6 books this month already."

    @djmikemoore
    platform
    star
    star
    star
    star
    star

    "BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

    @Pitiful
    platform
    comments
    96
    likes
    4.5K

    "BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

    @SofiaP
    platform
    star
    star
    star
    star
    star

    "BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

    @Jaded_Falcon
    platform
    comments
    201
    thumbsUp
    16

    "It is great for me to learn something from the book without reading it."

    @OojasSalunke
    platform
    star
    star
    star
    star
    star

    "The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

    @Leo, Law Student, UPenn
    platform
    comments
    37
    likes
    483

    "Makes me feel smarter every time before going to work"

    @Cashflowbubu
    platform
    star
    star
    star
    star
    star

    "Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

    @Moemenn
    platform
    star
    star
    star
    star
    star

    "I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

    @Chloe, Solo founder, LA
    platform
    comments
    12
    likes
    117

    "Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

    @Raaaaaachelw
    platform
    star
    star
    star
    star
    star

    "Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

    @Matt, YC alum
    platform
    comments
    12
    likes
    108

    "Reading used to feel like a chore. Now it’s just part of my lifestyle."

    @Erin, Investment Banking Associate , NYC
    platform
    comments
    254
    likes
    17

    "Feels effortless compared to reading. I’ve finished 6 books this month already."

    @djmikemoore
    platform
    star
    star
    star
    star
    star

    "BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

    @Pitiful
    platform
    comments
    96
    likes
    4.5K

    "BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

    @SofiaP
    platform
    star
    star
    star
    star
    star

    "BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

    @Jaded_Falcon
    platform
    comments
    201
    thumbsUp
    16

    "It is great for me to learn something from the book without reading it."

    @OojasSalunke
    platform
    star
    star
    star
    star
    star

    "The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

    @Leo, Law Student, UPenn
    platform
    comments
    37
    likes
    483

    "Makes me feel smarter every time before going to work"

    @Cashflowbubu
    platform
    star
    star
    star
    star
    star
    1.5K Ratings4.7
    Inizia il tuo percorso di apprendimento, ora
    BeFreed App
    BeFreed

    Impara qualsiasi cosa, personalizzato

    DiscordLinkedIn
    Riassunti di libri in evidenza
    Crucial ConversationsThe Perfect MarriageInto the WildNever Split the DifferenceAttachedGood to GreatSay Nothing
    Categorie di tendenza
    Self HelpCommunication SkillRelationshipMindfulnessPhilosophyInspirationProductivity
    Liste di lettura delle celebrita
    Elon MuskCharlie KirkBill GatesSteve JobsAndrew HubermanJoe RoganJordan Peterson
    Collezione premiata
    Pulitzer PrizeNational Book AwardGoodreads Choice AwardsNobel Prize in LiteratureNew York TimesCaldecott MedalNebula Award
    Argomenti in evidenza
    ManagementAmerican HistoryWarTradingStoicismAnxietySex
    Migliori libri per anno
    2025 Best Non Fiction Books2024 Best Non Fiction Books2023 Best Non Fiction Books
    Autori in evidenza
    Chimamanda Ngozi AdichieGeorge OrwellO. J. SimpsonBarbara O'NeillWinston ChurchillCharlie Kirk
    BeFreed vs altre app
    BeFreed vs. Other Book Summary AppsBeFreed vs. ElevenReaderBeFreed vs. ReadwiseBeFreed vs. Anki
    Strumenti di apprendimento
    Knowledge VisualizerAI Podcast Generator
    Informazioni
    Chi siamoarrow
    Prezziarrow
    FAQarrow
    Blogarrow
    Carrierearrow
    Partnershiparrow
    Programma Ambassadorarrow
    Directoryarrow
    BeFreed
    Try now
    © 2026 BeFreed
    Termini di utilizzoInformativa sulla privacy
    BeFreed

    Impara qualsiasi cosa, personalizzato

    DiscordLinkedIn
    Riassunti di libri in evidenza
    Crucial ConversationsThe Perfect MarriageInto the WildNever Split the DifferenceAttachedGood to GreatSay Nothing
    Categorie di tendenza
    Self HelpCommunication SkillRelationshipMindfulnessPhilosophyInspirationProductivity
    Liste di lettura delle celebrita
    Elon MuskCharlie KirkBill GatesSteve JobsAndrew HubermanJoe RoganJordan Peterson
    Collezione premiata
    Pulitzer PrizeNational Book AwardGoodreads Choice AwardsNobel Prize in LiteratureNew York TimesCaldecott MedalNebula Award
    Argomenti in evidenza
    ManagementAmerican HistoryWarTradingStoicismAnxietySex
    Migliori libri per anno
    2025 Best Non Fiction Books2024 Best Non Fiction Books2023 Best Non Fiction Books
    Strumenti di apprendimento
    Knowledge VisualizerAI Podcast Generator
    Autori in evidenza
    Chimamanda Ngozi AdichieGeorge OrwellO. J. SimpsonBarbara O'NeillWinston ChurchillCharlie Kirk
    BeFreed vs altre app
    BeFreed vs. Other Book Summary AppsBeFreed vs. ElevenReaderBeFreed vs. ReadwiseBeFreed vs. Anki
    Informazioni
    Chi siamoarrow
    Prezziarrow
    FAQarrow
    Blogarrow
    Carrierearrow
    Partnershiparrow
    Programma Ambassadorarrow
    Directoryarrow
    BeFreed
    Try now
    © 2026 BeFreed
    Termini di utilizzoInformativa sulla privacy

    Punti chiave

    1

    The Subacromial Crowded House

    0:00
    0:30
    1:01
    1:19
    1:45
    2

    Primary Versus Secondary Friction

    2:09
    2:30
    2:45
    3:06
    3:21
    3:47
    3

    The Detective Work of the Physical Exam

    4:07
    4:30
    4:46
    5:04
    5:16
    5:36
    5:41
    6:03
    4

    Imaging When the Story Doesn't Add Up

    6:15
    6:32
    3:21
    7:12
    7:26
    7:41
    7:55
    5

    The Scapular Engine and the Serratus Secret

    8:09
    8:34
    8:49
    9:07
    9:23
    3:21
    9:57
    6

    From Protection to Plyometric Power

    10:17
    10:38
    10:53
    11:10
    3:21
    11:30
    11:44
    7

    The Reality of the Surgical Option

    12:03
    12:20
    12:36
    12:51
    13:08
    9:07
    8

    Building a Resilient Shoulder

    13:36
    13:53
    14:12
    14:29
    14:40

    Contenuti simili

    Copertina del libro The Scapula: Rethinking Shoulder Movement
    Frontiers | Effect of scapular stabilization exercises on subacromial pain (impingement) syndrome: a systematic review and meta-analysis of randomized controlled trialsEffectiveness of specific scapular therapeutic exercises in patients with shoulder pain: a systematic review with meta-analysis - PubMedManaging Scapular Dyskinesisuntitled
    6 sources
    The Scapula: Rethinking Shoulder Movement
    Shoulder pain often stems from a breakdown in movement rhythm. Learn how to assess scapular dyskinesis and use integrated rehab to restore function.
    15 min
    Copertina del libro The Scapula: Solving Shoulder Instability
    Shoulder Instability from Scapular Dyskinesia: How Rebalancing the Scapula Stabilizes the Shoulder | Current Reviews in Musculoskeletal Medicine | Springer Nature LinkClinically Feasible Quantitative Assessments of Dynamic Scapular Motion: A Scoping Review | Published in International Journal of Sports Physical TherapyThe reliability of physical examination tests for the clinical assessment of scapular dyskinesis in subjects with shoulder complaints: A systematic reviewEffectiveness of specific scapular therapeutic exercises in patients with shoulder pain: a systematic review with meta-analysis - PubMed
    7 sources
    The Scapula: Solving Shoulder Instability
    When shoulder pain plateaus, the scapula is often the hidden culprit. Learn to assess muscle imbalances and restore stability through a phased rehab plan.
    17 min
    Copertina del libro Scapular Dyskinesis: The Hidden Shoulder Driver
    Scapular Dyskinesia, the forgotten culprit of shoulder pain and how to rehabilitateCurrent Views of Scapular Dyskinesis and its Possible Clinical RelevanceManaging Scapular DyskinesisWinging of the Scapula - StatPearls - NCBI Bookshelf
    5 sources
    Scapular Dyskinesis: The Hidden Shoulder Driver
    Shoulder pain often stems from poor scapular mechanics rather than the joint itself. Learn how to assess movement patterns and rebuild the kinetic chain.
    20 min
    Copertina del libro Shoulder Pain: Triage and Clinical Pathways
    [PDF] MSK Shoulder Assessment Clinical Pathway - Alberta Health ServicesShoulder Pain Diagnosis, Treatment and Referral Guidelines for Primary, Community and Intermediate Care - PMCEvidence-based approach to the shoulder examination for subacromial bursitis and rotator cuff tears: a systematic review and meta-analysis | BMC Musculoskeletal Disorders | Springer Nature Linksource 4
    6 sources
    Shoulder Pain: Triage and Clinical Pathways
    Sifting through 180 shoulder tests can be overwhelming. Learn to identify red flags and use a triage mindset to guide patients toward the right care.
    19 min
    Copertina del libro Shoulder Bursitis: The Path to Recovery
    Shoulder bursitis and its Physiotherapy Treatment | Elite PhysioSubacromial Bursitis - StatPearls - NCBI BookshelfShoulder Bursitis - Pure PhysiotherapyShoulder Bursitis Rehab: Your Fun & Professional Guide to a Pain-Free Shoulder - Physio for Surgery
    8 sources
    Shoulder Bursitis: The Path to Recovery
    Shoulder pain can make even simple movements feel impossible. Learn how to identify bursitis and follow a physiotherapy roadmap to regain mobility.
    14 min
    Copertina del libro Rotator Cuff Tears: The 2025 Care Roadmap
    source 1
    7 sources
    Rotator Cuff Tears: The 2025 Care Roadmap
    Shoulder pain is common, but knowing when to choose rehab over surgery is complex. Learn the latest diagnostic layers and evidence-based recovery paths.
    16 min
    Copertina del libro Built to Move
    Built to Move
    Kelly Starrett & Juliet Starrett
    A practical guide offering 10 essential habits to improve mobility, health, and longevity for people of all fitness levels.
    8 min
    Copertina del libro Imposter Cure
    Imposter Cure
    Dr. Jessamy Hibberd
    Overcome imposter syndrome with expert advice and strategies to boost self-belief and confidence.
    8 min