Table 2.
Frequency of Hypoglycemia by Exercise Characteristics
| No. of exercise sessions n (%) | % of exercise sessions with CGM <70 mg/dL | |
|---|---|---|
| Overall | 8,827 (100%) | 8% |
| Type of exercise | ||
| Study video aerobic | 657 (7%) | 4% |
| Study video interval | 652 (7%) | 3% |
| Study video resistance | 668 (8%) | 3% |
| Sports | 580 (7%) | 9% |
| Chores and physical labor | 605 (7%) | 10% |
| Walking/hiking | 2897 (33%) | 6% |
| Workout aerobic | 2191 (25%) | 4% |
| Workout strength | 577 (7%) | 3% |
| Exercise intensity level | ||
| High | 1145 (13%) | 9% |
| Medium | 4239 (48%) | 9% |
| Low | 3443 (39%) | 8% |
| Exercise time of day | ||
| Morning (3 AM−<12 PM) | 3111 (35%) | 8% |
| Afternoon (12 PM−<6 PM) | 3621 (41%) | 6% |
| Evening (6 PM−<9 PM) | 1624 (18%) | 9% |
| Night (9 PM−<3 AM) | 471 (5%) | 12% |
| Glucose at start of exercise | ||
| 70−<100 mg/dL | 1332 (15%) | 23% |
| 100−<140 mg/dL | 3158 (36%) | 9% |
| 140−<180 mg/dL | 2318 (26%) | 5% |
| 180−<250 mg/dL | 1637 (19%) | 2% |
| ≥250 mg/dL | 382 (4%) | 2% |
| Glucose rate of change at start of exercise | ||
| <-0.5 mg/dL/min | 2490 (28%) | 16% |
| -0.5 to <0.5 mg/dL/min | 3909 (44%) | 6% |
| ≥0.5 mg/dL/min | 2428 (28%) | 5% |
| % time <70 mg/dL 24 hours before exercise | ||
| <1% | 3961 (45%) | 5% |
| 1%−<4% | 2505 (28%) | 8% |
| ≥4% | 2361 (27%) | 14% |
| IOB at start of exercise | ||
| <1 U | 3874 (44%) | 6% |
| 1−<2 U | 1788 (20%) | 9% |
| 2−<3 U | 1191 (13%) | 10% |
| ≥3 U | 1974 (22%) | 12% |
| Heart rate at start of exercise | ||
| <75 beats/min | 2066 (23%) | 7% |
| 75−<95 beats/min | 4256 (48%) | 9% |
| ≥95 beats/min | 2505 (28%) | 9% |
IOB, insulin on board.