High muscular endurance refers to the ability of a muscle or group of muscles to sustain repeated contractions over an extended period of time. In the given options, the activity that is a result of high muscular endurance is hiking up a mountain trail.
Here's why hiking up a mountain trail requires high muscular endurance:
1. Hiking involves repetitive movements of the leg muscles (quadriceps, hamstrings, calf muscles) as well as the core muscles for balance and stability.
2. The continuous uphill climb challenges the muscles to work for an extended period without getting fatigued quickly.
3. Muscular endurance is essential for sustaining the physical effort needed to climb steep terrain for an extended period.
In contrast, folding laundry, watching TV, and raising a 100-pound barbell one time do not specifically test or require high muscular endurance as they either involve minimal muscle effort (folding laundry, watching TV) or a single short burst of strength (raising a heavy barbell once).
