Comparison of whey protein and alpha-lactalbumin in muscle pain, pressure pain threshold and mood states following strenuous prolonged running

Lu QIN, Fenghua SUN, Sinead SHERIDAN, Stephen Heung Sang WONG

Research output: Contribution to conferencePaper

Abstract

PURPOSE: To compare the effect of whey protein and alpha-lactalbumin ingestion on muscle pain, pressure pain threshold (PPT) and mood state following prolonged strenuous running. METHODS: 12 apparently healthy, active male subjects (age: 30.4 ± 2.8 yr., height: 172.7 ± 5.6 cm, weight: 66.7 ± 6.5 kg, VO₂max: 58.0 ± 6.9 ml·kg-1·min-1) participated in the double-blind counterbalance crossover study. During the main trial, two treatments were applied CHO + Whey PRO or CA: CHO + Alpha-lactalbumin. Participants ran at 70% VO₂max on a standardized treadmill and recovered for 4 hours. Treatments were ingested every 30 minutes during the first two hours of the recovery period, with the amount of 0.66g/kg/h CHO and 0.34g/kg/h PRO. PPT and pain intensity at the biceps femoris muscle and mood state (evaluated by Brunel Mood Scale, BRUMS-C) were evaluated before exercise (Ex 0), 90 min during exercise (Ex- 90) and at 120 min (Re-120) and 240 min (Re-240) post recovery. RESULTS: Compared with Ex-0, muscle pain was significantly higher at Ex-90 in both trials (CA: 4.79 ± 0.72 vs. 0.46 ± 0.22, P<0.01; CW: 4.58 ± 0.67 vs. 0.45 ± 0.16, P<0.01). No treatment effect was found in the rating of muscle pain (P>0.05). Compared with CW, PPT was significantly higher at Re-120 min in CA trial (CA vs. CW: 31.55 ± 3.09 vs. 26.99 ± 2.32 N/cm²; F=5.223, P=0.033). Vigor was slightly higher following CA ingestion than CW ingestion. (CA vs. CW: 4.08 ± 0.47 vs. 3.16 ± 0.47; F=4.382, P=0.066). CONCLUSIONS: Strenuous prolonged running increases muscle pain. Compared with whey protein, alpha-lactalbumin elevates PPT in muscle and potentially enhances the feeling of vigor during short term exercise recovery
Original languageEnglish
Publication statusPublished - May 2017

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Lactalbumin
Pain Threshold
Myalgia
Pressure
Eating
Muscles
Cross-Over Studies
Emotions
Weights and Measures
Pain
Whey Proteins
Therapeutics

Citation

Qin, L., Sun, F., Sheridan, S., & Wong, S. H. (2017, May). Comparison of whey protein and alpha-lactalbumin in muscle pain, pressure pain threshold and mood states following strenuous prolonged running. Paper presented at the 65th American College of Sport Medicine annual conference (ACSM 2017), Denver Convention Center, Denver, Colorado.