Uploaded May 2025 | Updated September 2026, 10 hours ago
Stray Dog Strength ISO Cups: shop.straydogstrength.com/products/iso-cups
This tiny rack attachment could break your PR plateaus. I’ve been using the Triphasic ISO Cups from Stray Dog Strength for a month across every push/pull day, and after integrating them into isometric holds, I’m confident these are one of the most underrated pieces of strength gear in the home gym market.
In this video, I break down how I use them on front squats, deadlifts, rows, and more—and share the science behind why isometric holds work so well.
🧠 Research Cited in This Video:
1. Zou et al., 2023 – PubMed Link
Effects of Different Isometric Training Programs on Muscle Size and Function in the Elbow Flexors.
2. Beckham et al., 2012 – Full PDF
Isometric Strength of Powerlifters in Key Positions of the Conventional Deadlift
🔥 Want to support the channel and keep reviews coming? Use these affiliate links when you shop:
💪 My Blog with All Links: https://www.thekurtlocker.blog/affiliate-links
🏋️♂️ Rogue Fitness: roguefitness.com/?a_aid=627d13d7cc995
🏠 Rep Fitness: repfitness.com/#6175840ff3e95
🐶 Bells of Steel: bellsofsteel.us/#a_aid=Kurtlocker
🧱 AbMat: abmat.com/#a_aid=kurtlocker
👟 Bearfoot Shoes: https://bearfoot.store/discount/kl10
🎯 Stray Dog Strength (CODE: KL10): shop.straydogstrength.com/?ref=KurtLocker
⸻
🕒 Chapters:
0:00 Intro & Use Case for ISO Cups
1:05 Why Isometric Holds Work
2:18 Build Quality & Bar Compatibility
5:44 Final Verdict + Discount Code
⸻
📲 Follow me for more gear reviews and gym wisdom:
Blog – https://www.thekurtlocker.blog/
Instagram – instagram.com/the_kurtlocker
MUSIC CREDIT
Music for these videos provided by Epidemic Sound
DISCLOSURE: Some of the links above are affiliate links. At no additional cost to you, I will earn a (small) commission if you click through and make a purchase.
Stray Dog Strength ISO Cups: shop.straydogstrength.com/products/iso-cups
This tiny rack attachment could break your PR plateaus. I’ve been using the Triphasic ISO Cups from Stray Dog Strength for a month across every push/pull day, and after integrating them into isometric holds, I’m confident these are one of the most underrated pieces of strength gear in the home gym market.
In this video, I break down how I use them on front squats, deadlifts, rows, and more—and share the science behind why isometric holds work so well.
🧠 Research Cited in This Video:
1. Zou et al., 2023 – PubMed Link
Effects of Different Isometric Training Programs on Muscle Size and Function in the Elbow Flexors.
2. Beckham et al., 2012 – Full PDF
Isometric Strength of Powerlifters in Key Positions of the Conventional Deadlift
🔥 Want to support the channel and keep reviews coming? Use these affiliate links when you shop:
💪 My Blog with All Links: https://www.thekurtlocker.blog/affiliate-links
🏋️♂️ Rogue Fitness: roguefitness.com/?a_aid=627d13d7cc995
🏠 Rep Fitness: repfitness.com/#6175840ff3e95
🐶 Bells of Steel: bellsofsteel.us/#a_aid=Kurtlocker
🧱 AbMat: abmat.com/#a_aid=kurtlocker
👟 Bearfoot Shoes: https://bearfoot.store/discount/kl10
🎯 Stray Dog Strength (CODE: KL10): shop.straydogstrength.com/?ref=KurtLocker
⸻
🕒 Chapters:
0:00 Intro & Use Case for ISO Cups
1:05 Why Isometric Holds Work
2:18 Build Quality & Bar Compatibility
5:44 Final Verdict + Discount Code
⸻
📲 Follow me for more gear reviews and gym wisdom:
Blog – https://www.thekurtlocker.blog/
Instagram – instagram.com/the_kurtlocker
MUSIC CREDIT
Music for these videos provided by Epidemic Sound
DISCLOSURE: Some of the links above are affiliate links. At no additional cost to you, I will earn a (small) commission if you click through and make a purchase.
