Module3

• What is the purpose of classifying movement?

  It helps coaches, clinicians, and trainers target conditioning, diagnose issues, and improve skill development.
• What are the types of movements classified in the lecture?

  • Muscle Activity: in-phase and anti-phase
  • Muscle Contractions: concentric, eccentric, isometric
  • Types of Training: resistance, endurance, plyometric
  • Open vs. Closed Skills
  • Speed-Accuracy Trade-Off
  • Kinetic Chain: open chain and closed chain
• What are the two types of muscle activity?

  In-phase and anti-phase.
• What is an example of in-phase muscle activity?

  Breaststroke.
• What is an example of anti-phase muscle activity?

  Walking.
• What are the three types of muscle contractions?

  Concentric, eccentric, and isometric.
• What is a concentric contraction?

  It is when the muscle shortens, such as during lifting.
• What is an eccentric contraction?

  It is when the muscle lengthens, such as during lowering.
• What is an isometric contraction?

  It is when the muscle doesn’t change length, such as holding.
• What are the types of training discussed in the lecture?

  • Resistance: strength training using weights
  • Endurance: sustaining effort over time
  • Plyometric: explosive movements to build power
• What is resistance training primarily focused on?

  Strength, often using weights.
• What does endurance training focus on?

  Sustaining effort over time.
• What is plyometric training aimed at developing?

  Explosive movements to build power.
• What is the difference between open skills and closed skills?

  Open skills are performed in a changing environment, while closed skills are in a stable environment.
• What is the speed-accuracy trade-off?

  Faster movements often reduce accuracy.
• What is an open chain movement?

  The limb’s end moves freely, like a bicep curl.
• What is a closed chain movement?

  The limb’s ends are fixed, leading to higher stability and muscle engagement, like squats.
• What is force defined as?

  A push or pull applied to an object to cause movement.
• How do muscles generate force?

  By contraction in response to an external stimulus.
• What factors influence force generation?

  Anatomical, physiological, and mechanical factors.
• What does the length-tension relationship refer to?

  Force production is related to muscle length.
• What is the implication of engaging the full range of motion in exercise?

  It recruits more muscles and builds strength.
• What type of training activates more muscle fibers?

  High weight, low velocity training.
• What are direct methods for measuring muscle force?

  Fiber-optic transducers measure force within muscle fibers.
• What are indirect methods for measuring muscle force?

  Ground reaction force and dynamometry assess the reaction force generated by muscle activity.
• What is work defined as in the context of force and muscle contraction?

  Work is the product of force and distance.
• What is power in relation to work?

  Power is the rate of doing work.
• What is the formula for work?

  $W =$$F \times s$
• What is the formula for power?

  $P =$$\frac{W}{t} \text{ or } P =$$\frac{F \times s}{t}$
• Why is power important in sports?

  It reflects the ability to apply high force rapidly.
• How can power be measured?

  Directly with devices or estimated using field tests like the vertical jump.
• What does VO2max represent?

  Maximal oxygen usage, indicating aerobic power.
• What is the anaerobic threshold?

  It marks the transition from aerobic to anaerobic energy use.
• What does economy of movement refer to?

  Efficiency in movement reduces energy costs and fatigue.
• Why is VO2max important?

  It is a predictor of performance in various endurance contexts.
• What are indirect tests for measuring aerobic power?

  Incremental tests like the beep test predict endurance capacity based on heart rate and pace.
• What are direct tests for measuring aerobic power?

  They measure oxygen consumption directly during max-effort tests.
• What are the system responses to exercise intensity?

  • Cardiovascular
  • Respiratory & Metabolic
  • Neuroendocrine
• What factors affect endurance by task duration?

  Short tasks require aerobic and anaerobic fitness, while long tasks focus on aerobic capacity.
• What are anabolic reactions?

  Synthesis of molecules.