Question

how should students best approach physical challenges?
setting appropriate challenges and working systematically
attending only familiar activities
pushing beyond safe limits
avoiding all difficult activities
which of the following is an example of the principle of specificity.
a runner lifting weights to improve jump height
a basketball player doing only yoga
a swimmer practicing sprints in the pool
a soccer player studying rules of baseball
muscular endurance is best defined as:
the flexibility of muscles and joints
the ability to lift very heavy weights once
the speed at which muscles can contract
the ability of a muscle to perform repeated contractions over time

Explanation:

• For the first question, setting appropriate challenges and working systematically is a balanced and effective approach. Avoiding difficult activities (\(4^{th}\) option) or only doing familiar ones (\(2^{nd}\) option) won't help in overall physical development, and pushing beyond safe limits (\(3^{rd}\) option) can cause harm.
• For the second question, the principle of specificity states that training should be relevant to the sport or activity. A swimmer practicing sprints (\(3^{rd}\) option) is specific to their sport. Lifting weights for a runner (\(1^{st}\) option) is more about general strength, a basketball - player only doing yoga (\(2^{nd}\) option) lacks sport - specific training, and a soccer player studying baseball rules (\(4^{th}\) option) is not physical training related to their sport.
• For the third question, muscular endurance is about a muscle's ability to perform repeated contractions over time (\(4^{th}\) option). Flexibility (\(1^{st}\) option) is a different physical component, lifting very heavy weights once (\(2^{nd}\) option) is related to strength, and the speed of muscle contraction (\(3^{rd}\) option) is about power or speed - strength.

Answer:

1. Setting appropriate challenges and working systematically
2. A swimmer practicing sprints in the pool
3. The ability of a muscle to perform repeated contractions over time