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Sports, exercise and health science (SEHS)

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Student Questions

Sports, exercise and health science (SEHS)

A.3.3 Fatigue and recovery (HL)

What Causes Fatigue During Exercise (Phosphocreatine Depletion; Glycogen Depletion; Acidosis)?

Learn how phosphocreatine depletion, glycogen depletion and acidosis cause exercise fatigue, with precise IB SEHS HL mechanisms and exam guidance.

A.3.3 Fatigue and recovery (HL)

How Does Dehydration or Hyperthermia Impair Performance?

Learn how dehydration and hyperthermia impair cardiovascular function, temperature regulation, muscle activity and cognition in IB SEHS performance.

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A.3.3 Fatigue and recovery (HL)

How Does Sleep Quality Affect Recovery and Performance?

Learn how sleep quality affects muscle repair, glycogen restoration, cognitive function and sporting performance in IB SEHS HL A.3.3 fatigue and recovery.

A.3.3 Fatigue and recovery (HL)

What Nutritional Strategies Aid Recovery (Protein; Carbohydrates; Creatine)?

Learn how protein, carbohydrates and creatine aid recovery through muscle repair, glycogen restoration and phosphocreatine availability in IB SEHS.

A.3.2 Benefits to health of being active

What Is Energy Balance (Intake; Consumption; Storage)?

Learn how energy intake, consumption and storage determine energy balance, body mass and health, with precise IB SEHS terminology and clear exam guidance.

A.3.3 Fatigue and recovery (HL)

What Recovery Techniques Exist (Myofascial Release, Compression Garments, and Thermotherapy)?

Learn how myofascial release, compression garments, and thermotherapy support recovery from fatigue in IB SEHS HL, including mechanisms and limits.

B.1.1 Anatomical position, planes and movement

What's the Difference Between the Axial and Appendicular Skeleton?

Compare the axial and appendicular skeleton by bones, functions, and movement, with key IB SEHS examples, misconceptions, and exam guidance included.

B.1.1 Anatomical position, planes and movement

What Do Anatomical Position Terms Mean (Superior; Inferior; Proximal; Distal; Medial; Lateral)?

Learn what superior, inferior, proximal, distal, medial and lateral mean in IB SEHS, with clear anatomical-position examples and practical exam guidance.

A.3.3 Fatigue and recovery (HL)

How Does Travel Across Time Zones Affect Sleep and Recovery?

Learn how time-zone travel disrupts circadian rhythms, sleep quality and athletic recovery, with jet-lag mechanisms and IB SEHS HL exam guidance.

B.1.1 Anatomical position, planes and movement

What's the Difference Between Flexion, Extension, Abduction, and Adduction?

Learn how flexion, extension, abduction, and adduction differ by joint angle, body midline, anatomical plane, and sports movement in IB SEHS exams.

B.1.1 Anatomical position, planes and movement

What's the Difference Between Pronation and Supination?

Learn how pronation and supination differ in forearm position, bone movement, and sporting examples for IB SEHS anatomical movement exam questions.

B.1.1 Anatomical position, planes and movement

What's the Difference Between Plantarflexion and Dorsiflexion?

Learn how plantarflexion and dorsiflexion differ at the ankle, including movement direction, muscles, sporting examples, and IB SEHS exam tips.

B.1.1 Anatomical position, planes and movement

What's the Difference Between Inversion and Eversion?

Learn how inversion and eversion differ by sole direction, movement plane, axis and sporting examples for IB SEHS anatomy and movement exam questions.

B.1.1 Anatomical position, planes and movement

What Is Anthropometry and How Is It Used in Sports Equipment Design? (HL)

Learn how anthropometric measurements and percentile data guide safe, effective sports equipment design, with IB SEHS HL examples and clear exam advice.

B.1.1 Anatomical position, planes and movement

How Does Ergonomic Design Improve Sporting Performance? (HL)

Learn how ergonomic equipment aligns anatomical position, planes and joint movements to improve efficiency, control, comfort and sporting performance.

B.1.2 Structure and function of connective tissues and joints

What's the Difference Between Fibrous, Cartilaginous, and Synovial Joints?

Compare fibrous, cartilaginous, and synovial joints by connective tissue, joint cavity, movement, examples, and IB SEHS exam relevance.

B.1.2 Structure and function of connective tissues and joints

What Classes of Synovial Joints Exist and How Do They Differ in Stability and Range of Motion?

Learn the six classes of synovial joints, their axes of movement, sporting examples, and the relationship between joint stability and range of motion.

B.1.2 Structure and function of connective tissues and joints

What's the Difference Between Bone, Ligament, Cartilage, Fascia, and Tendon?

Compare bone, ligament, cartilage, fascia, and tendon by structure and function for IB SEHS B.1.2, using precise terminology and practical exam guidance.

B.1.3 Muscular function

How Do Muscle Hypertrophy and Atrophy Affect Motor Unit Recruitment?

Learn how muscle hypertrophy and atrophy alter force per motor unit, recruitment demands, firing rate, and maximal force in accurate IB SEHS exam responses.

B.1.3 Muscular function

What Does Acetylcholine Do in Muscle Contraction?

Learn how acetylcholine carries a motor neuron signal across the neuromuscular junction to initiate skeletal muscle contraction for IB SEHS exams.

B.1.3 Muscular function

What Is a Motor Unit and How Does the “All-or-None” Principle Work?

Learn how a motor unit links a motor neuron to muscle fibres, how the all-or-none principle works, and how recruitment controls force in IB SEHS exams.

B.1.3 Muscular function

What's the Difference Between Type I, IIa, and IIx Muscle Fibers?

Learn how type I, type IIa, and type IIx muscle fibers differ in contraction speed, force, fatigue resistance, metabolism, and sporting roles in IB SEHS.

B.1.3 Muscular function

What Roles Do Actin, Myosin, Troponin, and Tropomyosin Play in Muscle Contraction? (HL)

Learn how actin, myosin, troponin, and tropomyosin regulate cross-bridge cycling and sarcomere shortening for IB SEHS HL muscular function exams.

B.1.3 Muscular function

What's the Difference Between Isometric, Isotonic Concentric, Isotonic Eccentric, and Isokinetic Contractions?

Compare isometric, concentric, eccentric, and isokinetic muscle contractions, including changes in muscle length, joint movement, and sporting examples.

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