Tag: GHD Sit Ups

On Saturday, May 17th, I hit a demanding Hyrox workout focused on building chest strength, muscular endurance, and overall conditioning – all vital for the Hyrox in Toronto this October. The session clocked in at 37 minutes and 52 seconds, with an average heart rate of 145 bpm and an estimated 451 calories burned. Beyond my personal grind, I want to break down this session to show you how these movements contribute to Hyrox performance and how you might structure similar training.

This Hyrox Workout Blueprint: Chest Strength & Endurance

This workout was structured in couplets, pairing a strength movement with a cardiovascular or metabolic conditioning piece to simulate the demands of a Hyrox race.

The Workout:

• 1. 3 Rounds:
  • 400m Run
  • 20 Barbell Bench Press @ 135 lbs
• 2. 3 Rounds:
  • 300m Ski Erg
  • 20 DB Incline Press (40lb dumbbells)
• 3. 3 Rounds:
  • 300m Row Erg
  • 20 Push Ups
• 4. 3 Rounds:
  • 400m Run
  • 20 GHD Sit Ups

Movement Breakdown & Rationale:

Let’s explore why these exercise pairings are effective for a chest-focused Hyrox workout:

400m Run & Barbell Bench Press: The run elevates your heart rate and pre-fatigues you slightly before hitting the bench press. This simulates lifting under compromised conditions often found in Hyrox. The Barbell Bench Press itself is a foundational movement for raw chest, shoulder, and triceps strength.
Why I chose them: To build strength endurance and the ability to perform skilled lifts when breathing hard. 135lbs for 20 reps is a challenging but manageable weight for multiple sets in this context.

300m Ski Erg & DB Incline Press: The Ski Erg is a potent full-body metabolic conditioner that also heavily engages the upper body pulling and pushing muscles. Pairing it with the DB Incline Press targets the upper chest effectively while requiring significant stabilization from the dumbbells.
Why I chose them: To build upper chest strength with a different stimulus (dumbbells promote unilateral stability) and to keep the heart rate high with a Hyrox-specific machine.

300m Row Erg & Push Ups: The Row Erg provides another full-body cardio blast with a focus on pulling, offering a contrast to the pushing movement of the push-ups. Push Ups are a fantastic bodyweight exercise for chest, shoulder, and triceps endurance.
Why I chose them: To develop chest endurance with a bodyweight movement and incorporate a different cardio machine that also engages the back, promoting balance.

400m Run & GHD Sit Ups: The final runs are designed to push your aerobic capacity to its limit, especially when combined with a high-skill, intense core movement like GHD Sit Ups. These sit-ups develop powerful hip flexor and abdominal strength.
Why I chose them: To finish with a high-intensity core challenge and empty the tank with more running, building that end-of-race grit.

My Experience & Key Takeaways:

Last Saturday’s session was a true “throwdown.” The initial runs and bench presses felt strong, but as expected, those bench reps got progressively tougher as fatigue from the run and previous sets started to creep in. My run times for those 400s were pretty consistent early on.

The Ski Erg and Incline Press combo was a real lung and shoulder burner. Keeping the Ski Erg pace up and then immediately stabilizing those 40lb dumbbells required a lot of focus. Similarly, the Row Erg pushed the pace before dropping down for push-ups, where maintaining a steady rhythm was key.

Those final runs after the GHD Sit Ups were a pure mental game – my heart rate peaked at 184 bpm on the first run of that final block! It’s in those moments you build the resilience needed for race day.

Why This Type of Hyrox Workout Is Effective:

This kind of Hyrox workout structure, with its blend of strength movements and varied cardio intervals, is incredibly effective because:

• It directly mimics the stop-start, strength-to-cardio nature of a Hyrox race.
• It builds phenomenal work capacity and strength endurance.
• It challenges you to maintain good form and mental focus when fatigued.
• It develops a well-rounded athleticism crucial for all Hyrox stations.

If you’re looking to build a powerful chest that can also go the distance, give a structure like this a try, scaling the weights and reps to your current abilities.

What’s your go-to Hyrox workout for building chest strength and endurance? Share in the comments!

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Workout Summary

• Workout Name: HYROX CHEST BLAST
• TOTAL TIME: 37:52
• CALORIES: 451
• AVG HR: 145 bpm
• Date: Sat, May 17, 2025
• Synced: Synced from Watch
• Focus: Chest Strength & Metabolic Conditioning
• Type: FOR TIME

Detailed Workout Log

CHEST DAY
FOR TIME – 37:52

#	TYPE	LB	TIME	HR
1	400m Run		01:46	116
2	20 Barbell Bench Press	135	00:55	137
3	400m Run		01:53	135
4	20 Barbell Bench Press	135	01:20	147
5	400m Run		01:53	154
6	20 Barbell Bench Press	135	01:21	143
7	400m Run		01:54	134
8	20 DB Incline Press	40s	01:20	139
9	300m Ski Erg		01:20	148
10	20 DB Incline Press	40s	01:30	144
11	300m Ski Erg		01:26	138
12	20 DB Incline Press	40s	01:40	125
13	300m Ski Erg		01:23	134
14	20 Push Ups		01:57	134
15	300m Row Erg		01:13	144
16	20 Push Ups		01:37	142
17	300m Row Erg		01:16	136
18	20 Push Ups		01:43	142
19	300m Row Erg		01:17	142
20	20 GHD Sit Ups		01:05	154
21	400m Run		02:00	184
22	20 GHD Sit Ups		01:05	171
23	400m Run		01:58	162
24	20 GHD Sit Ups		01:04	162
25	400m Run		01:52	163
	FOR TIME		37:52	–

Run Pace Analysis (min/km)

#	Activity	Time (MM:SS)	Pace (min:sec/km)
1	400m Run	01:46	4:25 min/km
3	400m Run	01:53	4:43 min/km
5	400m Run	01:53	4:43 min/km
7	400m Run	01:54	4:45 min/km
21	400m Run	02:00	5:00 min/km
23	400m Run	01:58	4:55 min/km
25	400m Run	01:52	4:40 min/km