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IB Diploma Programme: Sports, exercise and health science - Theme B: Biomechanics

Physical Education

Diploma

Level 3

5 chapters

54 Lessons

1 Free lessons

Welcome to the International Baccalaureate Diploma Programme in Sports, exercise and health science (SEHS) - Theme B: Biomechanics. This course should be studied alongside Theme A: Exercise physiology and nutrition of the human body and Theme C: Sports psychology and motor learning. This course is designed to develop knowledge, understanding and skills of the IB Sports, exercise and health science specification. This course is Standard Level (SL) content with the final chapter covering the additional Higher Level (HL) content only. Look out for the **2026 Hot Topics** These are lessons that we highly recommend that students specifically overlearn in preparation for the 2026 exams. Revision infographics, hot topics, mock exam papers, notes and live shows are available to all subscribers.

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Generating movement

Human skeleton

Lesson (1/0) 1

Structure and functions of the skeleton

Lesson (2/0) 2

Positional terminology

Movements

Lesson (1/0) 1

Planes

Lesson (2/0) 2

Axes

Lesson (3/0) 3

Movement patterns

Connective tissues and joints

Lesson (1/0) 1

Connective tissues

Lesson (2/0) 2

Types of joints

Muscular function

Lesson (1/0) 1

Motor units

Lesson (2/0) 2

Role of ATP

Lesson (3/0) 3

Muscle fibre types

Lesson (4/0) 4

Hypertrophy and atrophy

Lesson (5/0) 5

Types of muscular contraction

Lesson (6/0) 6

Antagonistic pairs

Levers in movement

Lesson (1/0) 1

Levers inside the body

Lesson (2/0) 2

Levers outside the body

Forces, motion and movement

Newton's laws of motion

Lesson (1/0) 1

Introduction to Newton's laws of motion

Lesson (2/0) 2

Stability

Lesson (3/0) 3

**2026 HOT TOPIC** Net Forces: Vertical

Lesson (4/0) 4

**2026 HOT TOPIC** Net Forces: Horizontal

Lesson (5/0) 5

**2026 HOT TOPIC** Linear motion

Lesson (6/0) 6

Impulse

Lesson (7/0) 7

Angular motion and angular momentum

Fluid mechanics

Lesson (1/0) 1

**2026 HOT TOPIC** Factors affecting the motion of projectiles

Movement analysis

Lesson (1/0) 1

Phases of movement

Injury

Causes of injury

Lesson (1/0) 1

Intrinsic factors

Lesson (2/0) 2

Extrinsic factors

Lesson (3/0) 3

Acute trauma

Interventions related to injury

Lesson (1/0) 1

Methods of reducing the risk of injury

Lesson (2/0) 2

Injury treatment

Lesson (3/0) 3

Concussion treatment

Higher Level (HL) only content

Anthropometry and body segments (HL)

Lesson (1/0) 1

Anthropometry and anthropometric databases (HL)

Sliding filament theory (HL)

Lesson (1/0) 1

Sliding filament theory 1 (HL)

Lesson (2/0) 2

Sliding filament theory 2 (HL)

Collisions (HL)

Lesson (1/0) 1

Coefficient of restitution (HL)

Lesson (2/0) 2

Friction (HL)

Work done (HL)

Lesson (1/0) 1

Work, power and energy (HL)

Fluid mechanics (HL)

Lesson (1/0) 1

Effect of environmental conditions (HL)

Lesson (2/0) 2

Buoyancy, lift and drag (HL)

Lesson (3/0) 3

Bernoulli principle (HL)

Lesson (4/0) 4

Magnus effect (HL)

Causes of injury (HL)

Lesson (1/0) 1

Chronic injuries (HL)

**2026 HOT TOPICS**

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