Primary Goal
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When to use it
Use Explosive Big-Rung Campusing to develop upper-body pulling power, dynamic contact coordination, and the ability to generate force rapidly during climbing-specific movements.
This exercise works particularly well as a supplementary power block:
- After a Finger Strength Integration session.
- After a relatively short Limit Bouldering session, provided explosive pulling capacity remains high.
- During training phases emphasizing upper-body power and dynamic climbing performance.
- As a progression from controlled pulling exercises toward more explosive climbing movements.
Large rungs reduce the grip-strength limitation compared with conventional small-rung campusing, allowing greater emphasis on powerful pulling and coordinated movement.
Keep the preceding climbing session sufficiently short to preserve the ability to generate explosive force. If pulling speed or movement quality has already deteriorated, omit the exercise rather than forcing additional power work.
Preparation
Complete the Standard Preparation Protocol, including progressive finger, elbow, and shoulder recruitment.
Before performing explosive reaches, complete several easier campus-board movements on large rungs. Begin with controlled bilateral hanging and short, comfortable hand movements, gradually increasing pulling speed and reach distance.
If campusing follows a climbing session, the athlete should already be warm, but a few specific preparatory movements are still recommended before maximal explosive efforts.
Starting position
Start on a campus board equipped with large, positive rungs. Hang with both hands on the same rung or on two adjacent rungs, depending on the selected progression.
- Use a comfortable, open-handed grip on the large rungs.
- Maintain active shoulder engagement without excessive shrugging.
- Keep the trunk controlled and avoid excessive swinging.
- Position the body so the first upward reach can be initiated powerfully and smoothly.
- Ensure that the landing area is clear and suitable for a controlled dismount.
Choose starting rung positions and movement distances appropriate to your current pulling strength, coordination, and experience.
Execution
Perform short sequences of explosive upward reaches, alternating hands and progressing through increasingly demanding campus-board patterns.
Beginner — Controlled Laddering
- Consecutive laddering: Begin with both hands on rung 1. Move one hand to rung 2, then the other to rung 3, continuing upward one rung at a time.
- Matching ladder: Move from rung 1 to rung 2, match both hands, then progress to rung 3 and match again (1–2–2–3–3–4).
- Emphasize controlled body positioning, secure catches, and alternating hand use before increasing reach distance.
Intermediate — Extended and Staggered Reaches
- Extended reach: Start with both hands on rung 1. Move one hand to rung 2, then reach to rung 3 with the opposite hand before matching.
- Staggered start: Begin with one hand on rung 1 and the other on rung 2. Drive upward and move the lower hand from rung 1 to rung 3.
- Increase reach distance progressively while maintaining powerful pulling, controlled catches, and coordinated body movement.
Advanced — Explosive Long-Distance Laddering
- Perform larger rung progressions such as 1–3–5 or 1–3–6.
- Progress toward longer reaches, such as 1–3–7, only when sufficient pulling power and contact control have been developed.
- Prioritize rapid upward acceleration and accurate catches rather than simply reaching the highest possible rung.
Alternate the starting hand between sets to distribute loading more evenly. End each set before explosive movement quality deteriorates.
Dosage
- Sets: 3–5, with 4 sets as the standard prescription.
- Repetitions: 2–4 reaches per side per set, alternating hands.
- Effort: RPE 7–9/10, emphasizing explosive movement rather than muscular failure.
- Recovery: 2–4 minutes between sets, with approximately 3 minutes as the default.
- Movement duration: Approximately 2–3 seconds per reach, including the catch and transition.
- Session duration: Approximately 10–15 minutes, depending on volume and recovery.
A standard prescription is 4 sets of 3 reaches per side (6 total reaches per set), with 3 minutes of recovery between sets.
For advanced, long-distance reaches, fewer repetitions may be more appropriate. Preserve movement speed and contact accuracy rather than completing a fixed repetition target at the expense of quality.
Progression
Progress by increasing reach distance and movement complexity while preserving explosive execution and controlled catches.
- Stage 1 — Basic laddering: Practice consecutive rung movements and matched-hand sequences on large rungs.
- Stage 2 — Extended reaches: Introduce movements spanning two rungs and controlled staggered-hand starts.
- Stage 3 — Explosive laddering: Progress to longer sequences such as 1–3–5 and 1–3–6.
- Stage 4 — Advanced power: Introduce larger reach distances only when pulling speed, shoulder control, and catching precision remain consistently high.
Progression should be determined by movement quality rather than completing increasingly difficult patterns at any cost. Increase reach distance gradually and reduce the number of repetitions when necessary to maintain explosive power.
Important
- Explosive campusing is a high-intensity exercise and requires adequate finger, elbow, and shoulder preparation.
- Large rungs reduce grip-strength limitations but do not eliminate high forces during dynamic catches.
- Beginners should begin with controlled, short-distance laddering before attempting explosive long reaches.
- Avoid excessive swinging, uncontrolled catches, and abrupt loading of the shoulders or elbows.
- Do not perform maximal reaches when fatigued or when pulling speed has noticeably decreased.
- Keep the preceding climbing session short enough to preserve explosive performance.
- Allow sufficient recovery between sets and avoid training to muscular failure.
- Ensure a clear landing area and dismount safely rather than jumping from excessive height.
- Reduce intensity or stop if finger, elbow, or shoulder pain develops.
Expected effects
- Improved explosive upper-body pulling power.
- Greater ability to generate force rapidly during dynamic climbing movements.
- Improved coordination between shoulder, elbow, and trunk movements.
- Better dynamic contact accuracy and control on large holds.
- Improved ability to perform successive powerful upward reaches.
- Development of climbing-specific neuromuscular power with less emphasis on maximal finger strength than small-rung campusing.