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Ruth Performance Lab

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2 contributions to Ruth Performance Lab
The Four Primary Purposes of Using Intervals in CrossFit Training
Intervals are one of the most versatile tools we have in CrossFit programming. When used intentionally, they allow us to shape volume, speed, pacing, and intensity in ways that continuous Metcons simply cannot. Below are the four primary reasons I prescribe mixed-modal intervals inside a competitive CrossFit framework, along with examples to illustrate each. 1. Extending Volume Beyond Metcon Limits Most Open and Quarterfinal workouts fall within predictable volume ranges.For example, 100–120 toes-to-bar is a common upper bound inside a traditional Metcon. Trying to exceed that volume within a continuous workout usually leads to speed deterioration and diminishing returns. Intervals give us a way around this: - Breaking the work into repeatable sets allows athletes to accumulate 125–150+ reps at high quality. - This builds tissue tolerance and repeatability beyond what the sport typically asks for. - The athlete gets exposure to higher total volume without the compounding fatigue that would destroy movement quality in a continuous Metcon. 2. Training at Speeds Faster Than Sport Pace Intervals allow athletes to train at supra-maximal speeds: faster than what they can sustain in a continuous workout. Example using toes-to-bar: - Inside a Metcon, an athlete may operate at 15 reps per minute. - With structured intervals, you can train them at 20 reps per minute. Why this matters: - You develop capacity at a speed that’s above sport demand, training TOWARD the goal cadence. - You can progress density and intensity without the accumulated fatigue of long continuous efforts. 3. Developing Pacing Skill and Decreasing Density in Longer Workouts One of the biggest issues in CrossFit is that athletes fundamentally don't know how to pace. Continuous formats make pacing errors hard to identify until a post-session review. Intervals solve this: - Each round gives immediate feedback: if Round-1 is 3:30, Round-2 is 3:40, and Round-3 is 4:25, the pacing error is obvious. - You can intentionally drop density (with built-in rest) to help athletes learn the right effort level. - This builds long-term pacing skill that directly transfers to longer Metcons and Semifinal-style workouts.
The Four Primary Purposes of Using Intervals in CrossFit Training
0 likes • 2d
Great content Coach! Question regarding: do you think this style of intervals progression needs a specific timing in a season prep or is it fully athlete-dependent? To clarify, I refer to intervals created to focus on pacing improvement, not movement capacity / efficiency.
Welcome to The Ruth Performance Lab!
I’ve created this as a community for athletes and coaches in the competitive fitness space to learn and collaborate. I’ll be sharing deep dives of training concepts, program design breakdowns, and inviting subject matter experts in everything from mental performance training and nutrition to niche topics like breathing and BFR. What to expect here: For my individual coaching clients: 1. Weekly Office Hours starting the first week after Thanksgiving 2. A full library of all Office Hours recordings 3. A resource library for everything training and performance related from the Competitors Manual, travel guidelines, pacing breakdowns, to nutrition and supplement guides. For everyone else: 1. Training education, system breakdowns, and long-form posts. 2. A place to ask questions and learn alongside other serious athletes and coaches. Thanks for being here, I’m excited to grow this alongside you!
3 likes • 12d
That's me knowing how much great stuff is going to be here
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Jan Lenczuk
1
2points to level up
@jan-lenczuk-8585
12 years of trying to become a professional football player ended with an already 9-year-long CrossFit addiction. Full-time CF coach & dogs owner.

Active 10h ago
Joined Nov 24, 2025
Wrocław