No, not planks or sit-ups — here's the one abs exercise you need for elite core strength and stability without weights
The article highlights an alternative to traditional sit-ups and planks for building core strength without weights. It recommends the hollow knee tuck as a low-impact, effective exercise that supports spinal health. The move is presented as suitable for those with back pain or mobility limitations.
- ▪The hollow knee tuck is promoted as a superior, low-impact alternative to sit-ups and planks for core strength.
- ▪Sit-ups may contribute to lower back and neck pain, especially without proper form or core engagement.
- ▪The exercise is part of a broader trend toward personalized, joint-friendly fitness routines.
- ▪Repeated lumbar flexion in sit-ups can place unnecessary pressure on the spine.
- ▪Core exercises like the hollow knee tuck focus on stability and engagement without requiring momentum or heavy movement.
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Story provenance
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Record
| Original publisher | Tom's Guide |
| Canonical URL | https://www.tomsguide.com/wellness/workouts/no-not-planks-or-sit-ups-heres-the-one-abs-exercise-you-need-for-elite-core-strength-and-stability-without-weights |
| Publication time | Sun, 17 May 2026 06:45:00 +0000 |
| Retrieval time | 2026-05-17T06:48:59.053Z |
| Last seen | 2026-05-17T06:48:59.053Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | cwEn_UEQPzHH |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Wellness Fitness Workouts No, not planks or sit-ups — here's the one abs exercise you need for elite core strength and stability without weights How To By Sam Hopes published 17 May 2026 Try the hollow knee tuck instead When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. (Image credit: Getty Images) Copy link Facebook X Reddit Email Share this article 0 Join the conversation Follow us Add us as a preferred source on Google Newsletter Subscribe to our newsletter Are you bored of doing 100s of sit-ups and crunches, but you don't quite know how to diversify your routine? Maybe certain moves are off the table due to back pain, tight hips, or mobility issues.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Tom's Guide.
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