Question

1. physical stress
2. plateau
3. progression
4. recovery heart rate
5. specificity
6. stamina
7. the overload principle

a term used to describe the workload placed on the body in general
how quickly your heart rate returns to normal after an activity session
a principle stating that the results you get will be directly related to the type of work you do and to specific muscles or body parts being worked
a principle that refers to the gradual increase in the amount of exercise sustained over a specified period of time
the ability to sustain a workload for an extended period of time
an element of fitness that is characterized by a decrease in improvement or a leveling off of performance
states that the body adapts to increasing demand by developing the ability to handle those specific demands

Explanation:

1. physical stress: Matches "a term used to describe the workload placed on the body in general" as physical stress relates to bodily workload.
2. plateau: Matches "an element of fitness that is characterized by a decrease in improvement or a leveling off of performance" since a plateau is a leveling - off in fitness progress.
3. progression: Matches "a principle that refers to the gradual increase in the amount of exercise sustained over a specified period of time" as progression in fitness is about gradual increase in exercise.
4. recovery heart rate: Matches "how quickly your heart rate returns to normal after an activity session" as recovery heart rate is about heart rate return to normal post - activity.
5. specificity: Matches "a principle stating that the results you get will be directly related to the type of work you do and to specific muscles or body parts being worked" as specificity in fitness is about specific work - muscle/body part relation.
6. stamina: Matches "the ability to sustain a workload for an extended period of time" as stamina is about sustaining workload over time.
7. the overload principle: Matches "states that the body adapts to increasing demand by developing the ability to handle those specific demands" as the overload principle is about body adapting to increased demands.

Answer:

1. physical stress - a term used to describe the workload placed on the body in general
2. plateau - an element of fitness that is characterized by a decrease in improvement or a leveling off of performance
3. progression - a principle that refers to the gradual increase in the amount of exercise sustained over a specified period of time
4. recovery heart rate - how quickly your heart rate returns to normal after an activity session
5. specificity - a principle stating that the results you get will be directly related to the type of work you do and to specific muscles or body parts being worked
6. stamina - the ability to sustain a workload for an extended period of time
7. the overload principle - states that the body adapts to increasing demand by developing the ability to handle those specific demands