# Equipment-free core exercise trends

> Live situation record from CLSTR: https://clstr.news/situations/equipment-free-core-exercise-trends
> Updated: 2026-08-06T14:01:08.000Z. Sources: 7. Developments: 2.

In early August 2026, the Bear Plank—a quadruped, equipment‑free variation on traditional sit‑ups—began attracting attention alongside a 30‑Day Plank Challenge that encourages participants to build up to a five‑minute hold. Both were promoted for improving core stability, posture, and back health without special gear.

The following day, personal trainer Stephanie Schappert expanded the conversation, highlighting three additional equipment‑free moves—the dead bug, bird dog, and an up‑and‑down plank—to target deep core muscles. She also cautioned against constant, rigid core bracing, recommending dynamic stability that allows the muscles to engage and relax, thereby avoiding over‑tension and related discomfort.

Together, the snapshots trace a brief progression from the popularization of specific plank‑based challenges to a broader endorsement of varied, equipment‑free core exercises and a nuanced view of proper core engagement.

## Timeline

### 2026-08-06: Trainer Recommends Equipment-Free Deep Core Exercises

Trainer Stephanie Schappert recommends dead bug, bird dog, and up‑down plank for deep core strength, while experts caution that constant core bracing can limit mobility and breathing.

5 sources. https://clstr.news/cluster/fitness-expert-dana-santas-warns-against-constant-core-bracing

### 2026-08-05: Core Strength Boost: Bear Plank and 30‑Day Plank Challenge Gain Traction

The Bear Plank and a 30‑Day Plank Challenge are highlighted as equipment‑free core workouts that improve posture, back health and mental endurance.

2 sources. https://clstr.news/cluster/core-strength-boost-bear-plank-and-30day-plank-challenge-gain-traction

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Cite as: Equipment-free core exercise trends. CLSTR, https://clstr.news/situations/equipment-free-core-exercise-trends