House of Hypertrophy
Cable and dumbbell lateral raises produce similar side shoulder muscle growth when volume and range are matched.
Evidence shows no meaningful difference in side delt growth between cable and dumbbell lateral raises under matched conditions.
We checked the science
our breakdown of the video
10 claims, each mapped to its moment in the video
When trained individuals perform cable lateral raises and dumbbell lateral raises with the same number of sets, reps, weight, and effort to muscle failure, both exercises result in the same amount of muscle growth in the side shoulder muscle.
Multiple causal studies (randomized trials and reviews) support this claim.
In people who regularly train, using cables or dumbbells for side shoulder raises produces the same amount of muscle growth in the side deltoid when the number of sets, effort level, and movement range are kept identical.
Multiple causal studies (randomized trials and reviews) support this claim.
In people who already train regularly, 8 weeks of weight training causes a small increase in muscle size that is often too small to measure reliably, making it hard to tell which training methods are better.
Multiple causal studies (randomized trials and reviews) support this claim.
Performing shoulder exercises with the arm raised above 90 degrees results in greater growth of the side shoulder muscle compared to exercises performed at or below 90 degrees.
Not enough evidence yet — take this with caution.
When training volume and intensity are the same, lifting weights with greater resistance at longer muscle lengths results in the same amount of muscle growth as lifting with greater resistance at shorter muscle lengths.
Multiple causal studies (randomized trials and reviews) support this claim.
When trained people lift weights using either a partial range of motion at long muscle lengths or a full range of motion, and both methods use the same total workload and effort, the amount of muscle growth is the same.
Evidence points in both directions — no clear conclusion yet.
When performing leg extensions with the hip fully extended, the rectus femoris muscle grows larger than the vastus lateralis muscle because the rectus femoris spans two joints and is stretched more during this movement.
Evidence contradicts this claim.
For people who are already trained, lifting weights with muscles stretched out does not result in more muscle growth than lifting with muscles shortened, and it does not result in less muscle growth than lifting through a full range of motion.
Multiple causal studies (randomized trials and reviews) support this claim.
When trained individuals exercise biarticular muscles with their joints in positions that stretch the muscles more, those muscles grow larger than when exercised in positions where the muscles are less stretched.
Multiple causal studies (randomized trials and reviews) support this claim.
In trained individuals, lifting weights through partial ranges of motion or at longer muscle lengths produces the same amount of muscle growth as lifting through full ranges of motion.
Multiple causal studies (randomized trials and reviews) support this claim.
Key Takeaways
Summary
Based on the video transcript only.
- 1Problem: People think cables are better for side shoulders because they stretch the muscle more, but no one knew if that actually made a difference.
- 2Core methods: Dumbbell lateral raises, cable lateral raises.
- 3How methods work: Dumbbells get harder when arms are out to the side (shorter muscle length), cables get harder earlier (longer muscle length), but both move the arm the same distance.
- 4Expected outcomes: Both methods built similar amounts of side shoulder muscle after 8 weeks of training.
- 5Implementation timeframe: Results were seen after 8 weeks of training twice per week with 5 sets per session.
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