How to Use Circuits, AMRAPs, and Intervals in On-Demand Coaching

Every workout you build in HubFit’s Workout Studio is one of four types. Understanding each type and when to use it is the difference between a good library and a great one.

Regular workouts are the foundation. But circuits, AMRAPs, and intervals? These are the workout types that keep clients engaged and give you variety to work with. In this guide, we’ll deep dive into each type, show you exactly how to structure them, and tell you which clients benefit most from which format.

The Four Workout Types Explained

Before we go deeper, here’s a quick overview of all four:

Regular Workouts: Traditional sets and reps. “5 sets of 5 reps of squats” with defined rest periods. This is your standard strength template.

Circuit Workouts: Exercises performed in sequence with minimal rest between movements. Once you complete one round through all exercises, rest, then repeat for multiple rounds.

AMRAP Workouts: “As Many Rounds As Possible” in a fixed time window. Clients see how many rounds they can complete and it becomes a measurable benchmark.

Interval Workouts: Structured work/rest periods at higher intensity. “30 seconds of work, 30 seconds of rest” repeated for multiple rounds. Think HIIT.

Now let’s build each one.

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Regular Workouts: The Foundation

Regular workouts are your bread and butter. Standard sets, reps, and rest. This is what most strength coaches build.

Structure

A regular workout typically looks like this:

• Exercise 1: 4 sets of 6 reps, 2-minute rest between sets
• Exercise 2: 3 sets of 8 reps, 90-second rest
• Exercise 3: 3 sets of 10 reps, 60-second rest
• Accessory: 2 sets of 12 reps, 45-second rest

Each exercise has clear parameters. The client knows exactly what to do and how long to rest.

When to Use Regular Workouts

Strength focus: When you want clients to lift heavy and control the load, regular workouts are ideal. Rest periods allow nervous system recovery between hard sets.

Progression tracking: Regular workouts make it easy to track progress. “Last month I did 5x5 at 185 lbs. Today I did 5x5 at 190 lbs.” Clear improvement.

Beginner clients: New lifters benefit from the structure and simplicity of regular workouts. They learn movement patterns without adding complexity.

Injury rehab: When clients need controlled loading, regular workouts are safer than circuits or intervals.

Pro Tips for Regular Workouts

• Vary rep ranges across your studio’s regular workouts. 5-rep sessions, 8-rep sessions, 10+ rep sessions. This gives clients options for different goals.
• Specify rest periods exactly. “90 seconds” instead of “rest adequately.” Clients need clarity.
• Include exercise variations. Some clients have access to barbells, some have dumbbells, some have machines. Offer multiple versions of the same lift.

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Circuit Workouts: The Engagement Driver

Circuits are exercises performed back-to-back with minimal rest, then repeated for multiple rounds. They’re time-efficient, metabolically demanding, and fun for clients who like that style of training.

Structure

Here’s what a circuit looks like:

Warm-up: 5 minutes

Main Circuit (4 rounds):

• Dumbbell Squat: 12 reps
• Push-ups: 10 reps
• Dumbbell Rows: 12 reps
• Burpees: 8 reps
• (30-60 second rest between rounds)

Cool-down: 3 minutes

Total workout: 20-25 minutes

How Many Exercises in a Circuit?

3-4 exercises: Shorter, more intense, faster completion. Good for time-constrained clients.

5-6 exercises: Sweet spot for most coaches. Balanced intensity and duration. Good mental break between exercises.

7+ exercises: Very long, lower intensity per round. Can work but risks fatigue and form breakdown on later rounds.

When to Use Circuits

Time efficiency: Circuits deliver metabolic stimulus in 20-30 minutes. No long rest periods to manage.

Conditioning goals: Clients who want cardiovascular benefits alongside strength get both in circuits.

Variety seekers: Clients who love rotating through different movements prefer circuits over single-focus sessions.

Intermediate+ clients: Circuits require coordination and work capacity. They’re less beginner-friendly than regular workouts.

Engagement: Circuits create momentum. Clients feel like they’re “doing something” continuously. This keeps them engaged with your studio.

Designing a Good Circuit

Rule 1: Alternate movement patterns. Don’t do three leg exercises in a row. Alternate upper/lower or pushing/pulling to let body parts recover between sets.

Rule 2: Balance intensity. If exercise 1 is extremely demanding, exercise 2 should be slightly easier. This sustains effort across the round.

Rule 3: Be clear about rest. “30-second rest between rounds” or “no rest, go straight to the next exercise.” Ambiguity kills circuits.

Rule 4: Include modifications. Not everyone can do burpees or full push-ups. Show alternatives in your video so more clients can participate.

Example: Instead of:

• Squat (hard)
• Row (hard)
• Deadlift (hard)
• Burpee (hard)

Do:

• Dumbbell Squat (hard)
• Push-ups (moderate upper body)
• Dumbbell Rows (moderate back)
• Jump Rope (cardio, moderate intensity)

This creates flow. The squat works legs, push-ups work chest/arms, rows work back, jump rope gives movement diversity.

Pro Tips for Circuits

• Film the entire circuit once. Show one complete round at normal speed so clients see the flow.
• Use HubFit’s Circuit workout type (don’t just do a Regular workout and call it a circuit). This signals to clients what they’re getting.
• Provide a “no rest” time estimate. If clients do your circuit with no rest between exercises, how long does one round take? Help them pace.

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AMRAP Workouts: The Benchmark Format

AMRAP stands for “As Many Rounds As Possible.” Set a timer for 12 minutes (or however long) and clients complete as many full rounds as they can. It becomes a measurable benchmark they can track over time.

Structure

Here’s an AMRAP:

Warm-up: 5 minutes

AMRAP (12 minutes):

• 10 Dumbbell Thrusters
• 15 Kettlebell Swings
• 20 Double-Unders (or 40 regular jump rope)

Cool-down: 3 minutes

Goal: Complete as many full rounds as possible in 12 minutes.

Timings That Work

Shorter AMRAPs (5-8 minutes): Higher intensity, fewer rounds expected. Good for advanced clients and finishers.

Standard AMRAPs (10-15 minutes): Most common. Allows 3-6 rounds depending on fitness level. Great middle ground.

Longer AMRAPs (20+ minutes): Very demanding. Requires strong work capacity. Good for conditioning specialists.

When to Use AMRAPs

Progress tracking: A client does “12-minute AMRAP” in Month 1 and completes 4 full rounds + 5 reps. In Month 3, they complete 5 rounds + 8 reps. Clear progress.

Competitive clients: Athletes and competitive-minded folks love AMRAPs. It’s a scoreboard.

Conditioning focus: AMRAPs are metabolically demanding and build work capacity.

Group classes: AMRAPs work great in live classes because everyone’s doing the same thing for the same time period.

Variety-building: With three exercises, clients get movement diversity every round without circuits feeling too long.

Designing a Good AMRAP

Rule 1: Keep it to 3-4 exercises. More than 4 and rounds take too long. Fewer than 3 and it gets boring fast.

Rule 2: Vary rep ranges and movement types. Put a strength move (heavy, low reps) next to a conditioning move (lighter, higher reps) or a skill move.

Rule 3: Choose rep schemes that are achievable in one go. If a client can only do 2 reps of Exercise 1, they’ll be stuck. Make rep counts that clients can hit for 8+ rounds without breaking into multiple sets.

Example AMRAP Structure:

• 10 Barbell Rows (strength move)
• 15 Box Jumps (power move)
• 20 Calorie Row Machine (conditioning move)

This cycles through different demands and lets different muscle groups recover.

Pro Tips for AMRAPs

• Be very clear on round definition. “One round = 10 rows, 15 box jumps, 20 calories. Complete as many full rounds as possible.”
• Suggest a target. “Most clients complete 4-6 full rounds.” This sets expectations.
• Make rep schemes sustainable. If you program 20 heavy deadlifts per round, clients might only do 2 full rounds. Make sure rep schemes allow for multiple rounds.

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Interval Workouts: The HIIT Specialist

Intervals are structured work/rest periods at higher intensity. Classic example: 30 seconds of work, 30 seconds of rest, repeated for 10-15 rounds. These are your true HIIT workouts.

Structure

Here’s an interval workout:

Warm-up: 5 minutes

Intervals (20 rounds of 40/20):

• Round 1-5: High-Knees (40 sec work, 20 sec rest)
• Round 6-10: Burpees (40 sec work, 20 sec rest)
• Round 11-15: Jump Squats (40 sec work, 20 sec rest)
• Round 16-20: Push-ups (40 sec work, 20 sec rest)

Cool-down: 5 minutes

Each round is timed. Clients push hard for work periods and recover during rest.

Work/Rest Ratios That Work

1:1 ratio (30/30, 40/40): High intensity throughout. Good for fit clients. Less recovery time.

2:1 ratio (40/20, 30/15): Popular. Clients work more than they rest. High effort but achievable.

3:1 ratio (45/15, 60/20): Longer work periods. Better for building conditioning. Higher intensity possible.

1:2 ratio (20/40, 15/30): More recovery. Good for beginners or very high-intensity movements (like sprints).

When to Use Intervals

Metabolic conditioning: Intervals are the gold standard for conditioning work. They build work capacity and cardiovascular fitness.

Time efficiency: A 20-minute interval workout is more conditioning-focused than a 20-minute regular workout.

Beginner clients: Surprisingly, intervals work for beginners if you use the right movements and rest ratios. A beginner HIIT with bodyweight and plenty of rest can be perfect for cardio conditioning.

Finishers: 5-10 minute intervals are great add-ons to strength workouts. Quick, metabolic, done.

Variety: Clients get different movements in each round (as shown in the example), keeping things interesting.

Designing a Good Interval Workout

Rule 1: Match work/rest to fitness level.

• Beginners: 20 seconds work, 40 seconds rest (1:2 ratio)
• Intermediate: 30 seconds work, 30 seconds rest (1:1) or 40 seconds work, 20 seconds rest (2:1)
• Advanced: 45 seconds work, 15 seconds rest (3:1) or longer

Rule 2: Use movements clients can sustain. If an exercise requires 100% max effort, clients can only do 1-2 rounds hard. Choose movements that allow for solid effort for 8+ rounds.

Rule 3: Include movement variety across rounds. If clients do burpees for all 10 rounds, it’s boring. Swap movements each 5 rounds or every round.

Rule 4: Be precise about timing. “Approximately 30 seconds” is not good enough. Show a timer on screen or call out the timing clearly.

Pro Tips for Interval Workouts

• Display a visible timer. Clients need to know when work periods start/end. Film with a timer on screen or use an overlay.
• Cue intensity clearly. “This is a 7/10 effort interval” or “go hard here” helps clients pace appropriately.
• Show modifications for every movement. In a 10-round interval, clients need alternatives when fatigue sets in. Show easier and harder versions.
• Use HubFit’s Interval workout type. This signals to clients exactly what they’re getting.

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Putting It All Together in Your Studio

Here’s how to mix these workout types for maximum engagement:

Monday Studio: 3 Regular workouts (strength focus), 2 Circuit workouts Tuesday Studio: 2 AMRAP workouts, 3 Interval workouts (conditioning focus) Your General Studio: 4 Regular, 3 Circuit, 2 AMRAP, 2 Interval

The variety keeps your studio fresh and gives clients options based on what they need that day.

When Each Type Shines

Workout Type	Best For	Energy Level	Experience Level
Regular	Strength building, progression tracking	Low-Moderate	All levels
Circuit	Efficiency, conditioning + strength	Moderate-High	Intermediate+
AMRAP	Benchmarking, competitive clients, work capacity	High	Intermediate+
Interval	Cardio conditioning, time efficiency	Very High	Intermediate+

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Video Tutorial: Building These Workouts

To see the Workout Builder in action and understand how to set up each type:

This video shows how to structure workouts with sections and exercises, which applies to all four workout types.

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The Tracking Advantage

Here’s something that makes HubFit powerful: each workout type supports different trackable metrics.

For Regular workouts, clients track: Weight, Reps, Rest periods. For Circuits, clients track: Rounds completed, difficulty level. For AMRAPs, clients track: Total rounds completed (the score). For Intervals, clients track: How consistently they sustained effort.

This built-in tracking gives your clients data and motivation. They can see themselves getting stronger, faster, or more efficient over time.

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Your Action Plan

1. Audit your studio. How many Regular workouts do you have? Circuits? AMRAPs? Intervals?
2. Identify gaps. Which type is underrepresented?
3. Add variety. Build 1-2 workouts in your weaker categories.
4. Mix them in strategically. Place them where they make sense contextually in your sections.

The coaches with the most engaging studios don’t rely on one workout type. They master all four and use each one where it shines.

You’ve got the tools. HubFit’s Workout Studio supports all four types with full tracking and client engagement. It’s time to build the variety that keeps clients coming back.

Ready to deepen your studio? See our complete Workout Studio guide for online coaches, explore 5 ready-to-use studio templates that use these workout types effectively, and learn how to track your clients’ progress across all workout types.