Research

Hormonal

Whey protein hydrolysate (WPH) may offer superior recovery of muscle function (torque) compared to intact whey protein isolate (WPI) or placebo after eccentric exercise.

If you perform intense eccentric workouts (like heavy lifting with long lowering phases) and feel your strength drop significantly for a day or two, try whey protein hydrolysate (WPH) immediately after. It may help you regain your strength (torque) faster (within 6 hours) compared to standard whey isolate.

ModerateSupportsMEDIUM confidence
when previously untrained subjects consumed either 25 g WPI or 25 g of its extensive hydrolysate (WPH), peak isometric torque was fully recovered by 6 hours post-fatiguing eccentric exercise for subjects consuming the WPH, whereas recovery was still significantly depressed by 24 hours post-exercise in both the WPI and placebo groups
Juha J. Hulmi et al. · Nutrition & Metabolism · 2010

Why this rating

Based on a single study cited (Buckley et al.) with a small sample and specific context (eccentric exercise).

Source

Effect of protein/essential amino acids and resistance training on skeletal muscle hypertrophy: A case for whey protein

Juha J. Hulmi et al. · Nutrition & Metabolism · 2010

DOI 10.1186/1743-7075-7-51

narrative_reviewCited 237×
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DOI resolved against Crossref · corpus check 2026-06-10

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