Based on the description you provided—Rashad has been on the treadmill for 10 minutes, his breathing is moderate, and he feels like he could sustain his current pace for a while—he is likely working at a level of effort that corresponds to a moderate intensity on the Rate of Perceived Exertion (RPE) scale.
The RPE scale typically ranges from 1 to 10, where:
- 1 is very light activity (e.g., sitting, watching TV)
- 2-3 is light activity (e.g., walking slowly)
- 4-5 is moderate activity (e.g., brisk walking, light jogging)
- 6-7 is somewhat hard (e.g., running at a steady pace)
- 8-9 is hard (e.g., high-intensity interval training)
- 10 is maximal effort (e.g., sprinting)
Given Rashad's description, his level of effort may be around 4 to 5 on the RPE scale, suggesting he is engaging in moderate exercise. This level allows him to maintain his activity without feeling overly fatigued.