Machine Back Extension vs Machine Seated Crunch
Overall Comparison
| Metric | Machine Back Extension | Machine Seated Crunch | Difference | Percent |
|---|---|---|---|---|
| Daily count | 13 | 56 | -43 | -77% |
| Total lifts entered | 36,195 | 88,511 | -52,316 | -59% |
Male Comparison
| Metric | Machine Back Extension | Machine Seated Crunch | Difference | Percent |
|---|---|---|---|---|
| Average lift | 263.8 lb | 187.3 lb | 76.5 lb | 41% |
| Elite lift | 591.4 lb | 390.5 lb | 200.8 lb | 51% |
| Average bodyweight | 172.4 lb | 172 lb | 0.4 lb | 0% |
| Lifts analysed | 635 | 1,350 | -715 | -53% |
Female Comparison
| Metric | Machine Back Extension | Machine Seated Crunch | Difference | Percent |
|---|---|---|---|---|
| Average lift | 89.6 lb | 84.7 lb | 4.9 lb | 6% |
| Elite lift | 186.7 lb | 167.2 lb | 19.5 lb | 12% |
| Average bodyweight | 140.8 lb | 143.6 lb | -2.8 lb | -2% |
| Lifts analysed | 0 | 0 | 0 | - |