📖 Static demo — read-only snapshot

You’re browsing a static build of the Body IQ knowledge graph, so everything loads with no backend. A few things that need the live server are turned off here:

  • Global search (sidebar) is disabled — it queries the API.
  • The JSON API and the API “Try it” playgroundaren’t included.
  • The data is a snapshot — it refreshes only when the demo is rebuilt, not live from the database.

Everything else — the body map, progression ladders, coverage heatmap, exercise finder, and all anatomy/exercise/source pages — works fully. The full app (live search + API + database) runs from the source on GitHub.

Hamstrings (Group)

Posterior thigh muscle group comprising biceps femoris (long and short heads), semitendinosus, and semimembranosus. Primary knee flexors and hip extensors.

Draft95%

Anatomy

Origin
Ischial tuberosity (long heads); biceps short head: lateral lip of linea aspera
Insertion
Biceps: head of fibula; Semimembranosus: posterior medial tibial condyle; Semitendinosus: pes anserinus
Action
Knee flexion, hip extension; medial hamstrings assist internal rotation of knee; biceps assists external rotation
Innervation
Tibial division of sciatic nerve (L5-S2) for long heads and medial hamstrings; common fibular division for biceps short head
Blood Supply
Perforating branches of profunda femoris artery

Movements (3)

MovementJointRoleNotes
Hip ExtensionHip Joint (Coxofemoral)Primary—
Knee FlexionTibiofemoral JointPrimaryGroup reference
Hip External RotationHip Joint (Coxofemoral)SynergistBiceps femoris assists

Exercises (68)

ExerciseRole
Leg CurlPrimary
Nordic Hamstring ExercisePrimary
Kettlebell Swing (Two-Hand)Primary
Bodyweight Hip HingePrimary
Hip Flexor and Hamstring StretchingPrimary
Single Leg Hip Hinge with BenchPrimary
Towel Hamstring CurlPrimary
Hamstring and Calf StrengtheningPrimary
Hip Hinge / Deadlift PatternPrimary
Glute Bridge with MarchSecondary
BridgeSecondary
Split Squat / Bulgarian Split SquatSecondary
Power Clean (Hang Variation)Secondary
A-Skip / B-Skip Running DrillsSecondary
Foam Roller BridgeSecondary
Kettlebell Good MorningSecondary
Sit-to-StandSecondary
Neuromuscular Exercise (Step-Downs / Single-Leg Balance)Secondary
Goblet SquatSecondary
Reverse LungeSecondary
Walking Lunges with Trunk RotationSecondary
Hip ThrustSecondary
BurpeeSecondary
Jump SquatSecondary
SupermanSecondary
Standing Hip CirclesSecondary
Prone Hip Extension (Active, Slow Tempo)Secondary
Isometric Glute SqueezeSecondary
Eccentric Stair DescentStabilizer
Barbell RowStabilizer
Step-Up Variations (Forward, Lateral, Cross-Over)Stabilizer
Depth Jump (Drop Jump)Stabilizer
Thoracic Extension with Hip Hinge on WallStabilizer
Bent-Over RowStabilizer
Cobra PoseStabilizer
Leg Press (Limited ROM, 0-60°)Stabilizer
SquatStabilizer
Knee Split Squat Isometric HoldsStabilizer
Backwards WalkingStabilizer
Eccentric Step-DownStabilizer
Forward LungeStabilizer
Wall Ball SquatStabilizer
Wall Sit IsometricStabilizer
Spanish Squat (Belt-Assisted)Stabilizer
Bird Dog to Elbow-KneeSynergist
Single Leg Squat / Pistol SquatSynergist
Single-Leg Sit-to-StandSynergist
Back Squat (Barbell)Synergist
Front SquatSynergist
Wall SitSynergist
Backpack Weighted CarrySynergist
Countertop-Supported SquatSynergist
Step-Up on StairsSynergist
Cook Hip Lift (Single-Leg Bridge with Contralateral Hip Flexion)Synergist
Standing Quad StretchSynergist
Straight Leg Raiselengthening
Legs-Up-the-Walllengthening
World's Greatest Stretchlengthening
Mindfulness-Integrated Stretchinglengthening
Downward Dog (Adho Mukha Svanasana)lengthening
Standing Hamstring Stretch (Foot on Step)lengthening
Hanging Leg Raiselengthening
Quadriceps Strengthening (SLR / Terminal Knee Extension)lengthening
Supine Hamstring Stretch (Strap-Assisted)lengthening
Leg Extensionlengthening
Seated Knee Extension (Bodyweight)lengthening
Wall Hamstring Stretchlengthening
Active Straight Leg Raise (ASLR)lengthening

Sources