Determine if acute supplementation with antioxidant vitamins (vitamin C and vitamin E) influences the muscle damage and fatigue caused after an acute session of eccentric training.
A randomized, single-blind, placebo-control parallel trial will be conducted. In a previous session volunteers will be interviewed to determine if they meet the inclusion criteria. Participants should avoid ingesting of foods that contain high amounts of antioxidant compounds: more than two juices of fruits, more than four cups of coffee or tea. Juices with high antioxidant content should be avoided. Alcoholic beverages should also be avoided. Participants will be divided in to groups and will performance one resistance exercise sessions. Prior to exercise, one group will intake supplementation VitC (1000 mg) + VitE (235 mg) and the other supplementation with placebo. The following sequence will be performed in each session: 1) baseline assessment (analysis of the composition body, blood draw and parameters of performance) prior to exercise session ; 2) administration of vitamin or placebo supplementation 2 hours before exercise session ; 3) post-exercise assessments (blood biomarkers and performance parameters) immediately after the session and after 24 hours. DOMS will also be assessed 48 h and 72 h after training. The training session implemented will be designed by a Sport Scientific
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
18
Antioxidant supplementation
Placebo administration
Universidad Europea de Madrid
Madrid, Spain
Percentage of body fat and muscle mass
Determination of body composition using skinfolds measurements
Time frame: Prior to the intervention
DOMS
Delayed onset muscle soreness. This outcome will be measure with a 10-point visual analogic scale (0= no pain; 10 = worst possible pain)
Time frame: 0 hours post exercise
DOMS
Delayed onset muscle soreness. This outcome will be measure with a 10-point visual analogic scale (0= no pain; 10 = worst possible pain)
Time frame: 24 hours post exercise
Blood malondialdehyde (MDA)
MDA will be analyzed from a blood sample
Time frame: 2 hours prior to exercise
Blood creatine quinase (CK)
CK will be analyzed from a blood sample
Time frame: 2 hours prior to exercise
Blood malondialdehyde (MDA)
MDA will be analyzed from a blood sample
Time frame: Inmediatly after exercise
Blood malondialdehyde (MDA)
MDA will be analyzed from a blood sample
Time frame: 24 hours after exercise
Blood creatine quinase (CK)
CK will be analyzed from a blood sample
Time frame: 24 hours after exercise
Jump height in a Counter Movement Jump
Jump height (cm) in a counter movement jump measured with Octojump Platform
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.
Time frame: 2 hours prior to exercise
Jump height in a Counter Movement Jump
Jump height (cm) in a counter movement jump measured with Octojump Platform
Time frame: Inmediatly after exercise
Jump height in a Counter Movement Jump
Jump height (cm) in a counter movement jump measured with Octojump Platform
Time frame: 24 h after exercise
Jump Height in a Squat Jump
Jump Height (cm) in a Squat Jump measured with Octojump Platform
Time frame: 24 h after exercise
Jump Height in a Squat Jump
Jump Height (cm) in a Squat Jump measured with Octojump Platform
Time frame: Inmediately after exercise
Jump Height in a squat Jump
Jump height (cm) in a squat jump with Octojump Platform measured with Octojump Platform
Time frame: 2 hours prior to exercise
Jump Height in a Drop Jump
Jump height (cm) was measured in different drop jumps with Octojump Platform
Time frame: 2 hours prior to exercise
Jump Height in a Drop Jump
Jump height (cm) was measured in different drop jumps with Octojump Platform
Time frame: Inmediately after exercise
Contact time in a Drop Jump
Contact time (s)measured in different drop jumps with Octojump Platform
Time frame: Inmediately after exercise
Jump Height in a Drop Jump
Jump height (cm) measured in different drop jumps with Octojump Platform
Time frame: Inmediately after exercise
Contact time in a Drop Jump
Contact time (s) measured in different drop jumps with Octojump Platform
Time frame: 24 hours after exercise
Jump Height in a Drop Jump
Jump height (cm) measured in different drop jumps with Octojump Platform
Time frame: 24 hours after exercise
Contact time in a Drop Jump
Capillary blood lactate evaluated with Lactate Pro 2
Time frame: Inmediately after exercise
Concentration of blood lactate
Capillary blood lactate with Lactate Pro 2
Time frame: 2 hours before exercise