A Level Sport Science CCEA

This subject is broken down into 38 topics in 4 modules:

  1. Improving Physical Performance (AS) 14 topics
  2. Evaluating and Improving Physical Performance (AS) 4 topics
  3. The Application of Science to Improve Performance (A2) 16 topics
  4. The Improvement and Evaluation of Sports Performance (A2) 4 topics
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  • 4
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  • 38
    topics
  • 15,508
    words of revision content
  • 2+
    hours of audio lessons

This page was last modified on 28 September 2024.

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Sport Science

Improving Physical Performance (AS)

Skeletal System

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Skeletal System

Skeletal System Overview

  • Skeletal system comprises 206 bones and is responsible for providing support, protection and movement to the body.
  • It includes the axial skeleton (skull, vertebral column, rib cage) and the appendicular skeleton (limbs and girdles).
  • The skeletal system also has an important role in blood cell production (in the bone marrow) and mineral storage (calcium and phosphate).

Bone Structure

  • A bone is made up of compact (dense) and spongy bone. The compact bone forms the hard outer shell, while the spongy bone is found within it.
  • Bones are living tissue and consist of different types of cells: osteoblasts (bone building), osteocytes (bone maintaining), and osteoclasts (bone breaking).
  • Periosteum surrounds the bone, providing nourishment, protection, and a location for muscle attachment.

Bone Development and Growth

  • The bones grow from growth plates located near the ends of the long bones.
  • During growth, bones elongate due to the activity of cartilage cells in the growth plates.
  • When growth is finished, usually around age 21, the growth plates close and are replaced by solid bone.
  • The shape and structure of bones continue to change throughout life in response to the forces placed upon them, a process known as bone remodelling.

Types of Bones

  • There are five main types of bones: long, short, flat, irregular, and sesamoid.
  • Long bones, such as the femur, help to create movement.
  • Short bones, like those in the wrist and ankle, provide support and stability with little to no movement.
  • Flat bones, such as the scapula, serve as protection for the body's internal organs.
  • Irregular bones, such as the vertebrae, serve various functions depending on their location.
  • Sesamoid bones, like the patella, are embedded in tendons and protect them from wear and tear.

Function of the Skeletal System in Sport

  • The skeletal system allows for movement by acting as levers during muscle contraction. This is essential in all sports from running to weight lifting.
  • Joints, where bones meet, allow for a range of movement. The type of joint determines the amount and type of movement possible.
  • Without the skeletal system, the body would not be able to maintain its shape or protect vital organs, essential for overall health and sporting performance.
  • In certain sports, advantageous bone structures can provide a performance edge, such as longer leg bones in running, or bone density in contact sports.

Injuries and Conditions

  • Athletes are prone to a number of conditions and injuries affecting the skeletal system such as fractures, osteoporosis, arthritis and rickets.
  • Understanding the skeletal system plays a key role in injury prevention, effective training, and rehabilitation in sport.
  • Proper nutrition, equipment, training, and conditioning can reduce skeletal injuries.

Remember to link the role of the skeletal system with improving physical performance in your answers. Reference specific sports, injuries or conditions when applicable to demonstrate a comprehensive understanding.

Course material for Sport Science, module Improving Physical Performance (AS), topic Skeletal System

Sport Science

The Application of Science to Improve Performance (A2)

Principles of Training

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Principles of Training

Principles of Training

Principles of training are crucial for anyone, from an amateur to a professional athlete, who wishes to improve their performance and reach their training goals. They serve as guidelines that aid in designing, conducting and evaluating training to maximise progress and minimise risk of injury.

Specificity

  • Specificity refers to the training principle asserting that the training must be relevant and appropriate to the sport for which the individual is training.
  • It involves matching training to the specific demands of a chosen sport or event.
  • Performance enhancements should relate to the targeted training activity; this includes focusing on specific muscle groups, energy systems, and movements.
  • For instance, a long-distance runner would need to train primarily their cardiovascular system and correct running form, with exercises such as long runs, intervals and hill running.

Overload

  • The overload principle suggests that to improve, athletes must continually work harder as their bodies adjust to existing workouts.
  • Overloading can be achieved by modifying variables such as frequency, intensity, duration and type of training.
  • Incremental increases allow the body to adapt to the increased demand by becoming stronger, more efficient and durable.
  • However, overloading should be done cautiously, as too much stress can lead to injuries and overtraining.

Progression

  • The principle of progression implies that the workload of an athlete should gradually increase over time to cause adaptive responses.
  • The adaptations include increases in muscle strength and endurance, cardiovascular efficiency, and flexibility.
  • It involves a balance between applying enough stress to the body for adaptation, while allowing enough time for recovery and adaptation.
  • Effective progression avoids both plateaus and overtraining, which can lead to decline in performance and possible injury.

Reversibility

  • The reversibility principle states that athletes will lose the effects of training when they stop exercising, also referred to as use it or lose it.
  • The timing and rate of loss depend on the level of physical fitness, the type of fitness—strength, endurance, speed, flexibility—and the duration of inactivity.
  • Reconditioning after a break requires careful planning, as attempting to swiftly return to previous levels of training can risk injury.
  • Maintaining at least a minimal level of activity can help to retard or eliminate the loss of conditioning.

Tedium

  • The principle of tedium emphasises avoiding boredom and fatigue by varying workouts.
  • Changing routines or introducing new activities enhances motivation and keeps the exercises interesting.
  • Variety also helps by reducing the risk of overuse injuries and promoting balanced muscle usage.
  • Different types of workouts can stimulate different systems (e.g., strength training vs. cardiovascular), which can result in a comprehensive fitness level for the individual.

Individualisation

  • The principle of individualisation posits that programmes should be fitted to individual needs, fitness levels and capabilities.
  • This includes taking into account age, gender, sports competency, injury history, and physical and psychological conditions.
  • For example, an individual with a lower level of fitness may require a slower progression rate, or adjustments to the type and amount of exercise.
  • Training modifications should not only be tailored to an individual's unique traits, but also adapt over time as their performance improves.

Understanding these principles can aid in the design and evaluation of effective training programs. It enables adjustments to be made according to an individual’s progression, promoting optimal performance and reducing the risk of injury.

Course material for Sport Science, module The Application of Science to Improve Performance (A2), topic Principles of Training

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