The Effect of Vicia Faba Hydrolysate Supplementation on Muscle Strength Recovery

To investigate the effect of Vicia faba protein concentrate, a protein derived from Fava bean extract, on delayed onset muscle soreness (DOMS). Participants receive either 2.4g/day of PeptiStrong® supplement capsules or placebo capsules for 14 days until a strenuous exercise session. For the last 3 days, 2/3 of them stay on the same treatment and 1/3 of them switch from placebo to PeptiStrong®.

Delayed onset muscle soreness (DOMS) is the result of eccentric muscle contraction and is caused by small tears in the myofibrils. Damage to the muscle fibers causes pain, inflammation, and reduced range of motion which can delay recovery. Peak effects are often experienced 48 - 72 hours following the exercise session but can last up to 7 days post-exercise. Various modalities are utilized to reduce DOMS such as cryotherapy, massage, and compression. However, nutritional supplements have also been studied including Omega 3 fatty acids, creatine monohydrate, tart cherry juice, vitamin D, and probiotics. A recent study (Kerr, et al., 2023) investigated the effects of a protein supplement (PeptiStrong®) from Vicia faba protein concentrate, a protein derived from Fava bean extract. Results showed that 17 days of 2.4 grams of PeptiStrong® significantly improved muscle strength, reduced muscle fatigue, and reduced myostatin expression during the 72 hour recovery period compared to placebo following a strenuous bout of eccentric exercise. This study aims to repeat the methods of Kerr, et al. with the addition of females and a third experimental group. In addition to 17 days of supplementation with Vicia faba Hydrolysate or placebo, a third group will be given 14 days of placebo followed by 3 days of the Vicia faba Hydrolysate supplement to determine if short-term supplementation results in a similar benefit.