Quick Answer
Casein Protein Sleep Muscle Randomized Trial has evidence relevant to strength of evidence and what the studies can or cannot prove, but conclusions should stay close to the cited sources. One representative finding is: After a 5-min warm up at 100 W, workload was set at 150 W and increased 50 W every 2.5 min until exhaustion.
Key Takeaways
- 01After a 5-min warm up at 100 W, workload was set at 150 W and increased 50 W every 2.5 min until exhaustion. [Trommelen Jorn (2023)]
- 02Bonferroni post hoc analysis was performed whenever a significant F ratio was found to isolate specific differences. [Trommelen Jorn (2023)]
- 03Plasma insulin levels increased following protein ingestion (time × treatment interaction: < 0.001), with a subsequent analysis showing a more prolonged rise following whey ingestion when compared with casein protein ingestion ( = 60–90; ANOVA, < 0.05). [Trommelen Jorn (2023)]
- 04Protein ingestion prior to sleep increases myofibrillar and mitochondrial protein synthesis rates during overnight recovery from endurance-type exercise. [Trommelen Jorn (2023)]
The current Migaku evidence database contains 2 reusable source documents for Casein Protein Sleep Muscle Randomized Trial. This answer focuses on strength of evidence and what the studies can or cannot prove.
- After a 5-min warm up at 100 W, workload was set at 150 W and increased 50 W every 2.5 min until exhaustion. [Trommelen Jorn (2023); evidence level 2]
- Bonferroni post hoc analysis was performed whenever a significant F ratio was found to isolate specific differences. [Trommelen Jorn (2023); evidence level 2]
- Plasma insulin levels increased following protein ingestion (time × treatment interaction: < 0.001), with a subsequent analysis showing a more prolonged rise following whey ingestion when compared with casein protein ingestion ( = 60–90; ANOVA, < 0.05). [Trommelen Jorn (2023); evidence level 2]
- Protein ingestion prior to sleep increases myofibrillar and mitochondrial protein synthesis rates during overnight recovery from endurance-type exercise. [Trommelen Jorn (2023); evidence level 2]
- Due to increased need in athletes, protein supplementation has been widely used to support recovery and performance. [Jahan-Mihan A (2025); evidence level 4]
Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording.
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Sources