Supplementation with a whey protein hydrolysate enhances recovery of muscle force-generating capacity following eccentric exercise.
نویسندگان
چکیده
There is evidence that protein hydrolysates can speed tissue repair following damage and may therefore be useful for accelerating recovery from exercise induced muscle damage. The potential for a hydrolysate (WPI(HD)) of whey protein isolate (WPI) to speed recovery following eccentric exercise was evaluated by assessing effects on recovery of peak isometric torque (PIT). In a double-blind randomised parallel trial, 28 sedentary males had muscle soreness (MS), serum creatine kinase (CK) activity, plasma TNFalpha, and PIT assessed at baseline and after 100 maximal eccentric contractions (ECC) of their knee extensors. Participants then consumed 250 ml of flavoured water (FW; n=11), or FW containing 25 g WPI (n=11) or 25 g WPI(HD) (n=6) and the assessments were repeated 1, 2, 6 and 24h later. PIT decreased approximately 23% following ECC, remained suppressed in FW and WPI, but recovered fully in WPI(HD) by 6h (P=0.006, treatment x time interaction). MS increased following ECC (P<0.001 for time), and remained elevated with no difference between groups (P=0.61). TNFalpha and CK did not change (P>0.45). WPI(HD) may be a useful supplement for assisting athletes to recover from fatiguing eccentric exercise.
منابع مشابه
Whey Protein Supplementation is Associated with Antioxidant Markers Following Severe Eccentric Contractions in Obesity
Objective: Intense muscle contractions are associated with oxidative stress and immune system deficiency, especially in the presence of obesity. This study aimed to determine the effect of whey protein supplementation following eccentric resistance contractions on some determinants of oxidative stress in non-athletic obese students. Materials and Methods: In this double blinded randomized clin...
متن کاملThe effect of L-Arginine supplementation on Delayed Onset Muscle Soreness (DOMS) after eccentric heavy exercise
Introduction: L-Arginine supplementation improves antioxidant defenses through L-Arginine/nitric oxide pathways. This investigation assesses the influences of acuteL-Arginine supplementation on selected markers of delayed onset muscle soreness (DOMS) after one by one heavy eccentric exercise in healthy young females. Methods: Twelve healthy young females students of the University of Mohaghegh...
متن کاملWhey protein isolate attenuates strength decline after eccentrically-induced muscle damage in healthy individuals
BACKGROUND We examined the effects of short-term consumption of whey protein isolate on muscle proteins and force recovery after eccentrically-induced muscle damage in healthy individuals. METHODS Seventeen untrained male participants (23 ± 5 yr, 180 ± 6 cm, 80 ± 11 kg) were randomly separated into two supplement groups: i) whey protein isolate (WPH; n = 9); or ii) carbohydrate (CHO; n = 8). ...
متن کاملاثر مکمّلدهی کیوتن و ریکاوری در آب بر سطوح سرمی اینترلوکین یک بتا و اینترلوکین شش متعاقب تمرینات برونگرا در دختران فعال
Introduction: Exercise-related stress changes the amount of cytokines produced. Dietary supplements can accelerate the muscle recovery process. Q10 is one of the most effective and nutritional supplements that is prescribed to reduce the inflammatory-oxidative damage. Therefore, this study aimed to investigate the effect of Q10 supplementation and recovery in water on serum levels of IL-6 and I...
متن کاملEffect of timing of whey protein supplement on muscle damage markers after eccentric exercise
Whey protein is a nutritional supplement commonly ingested for recovery following exercise. However, the timing when whey protein supplement must be ingested after muscle-damaging exercise is debatable. Therefore, the present study investigated the effects of the timing of supplement ingestion on muscle damage markers after eccentric or muscle-damaging exercise. In total, 32 collegiate male stu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of science and medicine in sport
دوره 13 1 شماره
صفحات -
تاریخ انتشار 2010