Pomegranate Improve Biological Recovery Kinetics in Elite Weightlifter
关键词
抽象
描述
Participants (i.e., 9 elite weightlifters) performed-as part of their habitual training program from 08h:00 to 09h:45- two training sessions using respectively, PLA and POMj supplementations (500ml), with a recovery period of 48 h in between. Upon arrival for their first test session, each participant's body mass and height were recorded. Moreover, before and after each tested training session, oral temperature was recorded with a calibrated digital clinical thermometer (Omron, Paris, France; accuracy: 0.05°C) inserted sublingually for at least 3 min with the subjects in a seated resting position for at least 15 min. Also, before and after each training session, fasting blood samples (blood sample 2, 3, 4 and 5, Figure1) were collected and heart rate (HR) and systolic arterial pressure (SAP) were recorded using a heart rate monitor and a manual sphygmomanometer. Additionally, to assess the recovery kinetic of the biological parameters, blood sample, temperature, HR and SAP were collected at resting state (i.e., after 10 days of recovery, blood sample 6) and immediately (3min) after the training session which proceed the PLA session (blood sample 1). Given that values of markers of muscle damage remain raised for at least 7 days following intensive weightlifting exercises, a recovery period of 10 days was chosen to evaluate the biological resting state. Additionally, given that (i) using randomized order in this study will results in consuming POMj then PLA supplementations (after 48h) for some participant and (ii) the delayed effect of POMj (which we expect) could alter the results of PLA supplementation, in the present study investigators choose to avoid randomized order and to evaluate the PLA at first then the POMj effect using all the participant together. Supplements (1500ml) of placebo (PLA) or pomegrenate juice (POMj) were taken three times daily in the 48h which proceed the first and the second tested training sessions respectively (i.e. 250ml × 6 times with 8-h intervals between it). Moreover, during these tested sessions, subject consumed an additional 500ml of PLA and 500ml of POMj, respectively. The tested quantity of the natural POMj were prepared from a fresh pomegranate fruit 48h before the beginning of the experimentation and were shipped frozen and stored at -4°C. No additional chemical products were added to the natural POMj. Each 500-mL of the tested POMj contained 2.56g of total polyphenol, 1.08g of ortho-diphenols, 292.59mg of flavonoids and 46.75mg of flavonols. Subjects were reminded verbally through phone communication to consume at the required times their supplements. Placebo juice consisted of an Pomegranate-flavored commercial drink contained water, citric acid, natural flavor and natural identical flavor (Pomegranate), sweeteners (aspartame × (0.3g/l), acesulfame K (0.16g/l)), stabilizers (Arabic gum) and lacked antioxidants, fruit and vegetable extracts or vitamins. Placebo juice contains no polyphenols.
日期
| 最后验证: | 02/29/2016 |
| 首次提交: | 02/23/2016 |
| 提交的预估入学人数: | 03/01/2016 |
| 首次发布: | 03/02/2016 |
| 上次提交的更新: | 03/01/2016 |
| 最近更新发布: | 03/02/2016 |
| 实际学习开始日期: | 12/31/2014 |
| 预计主要完成日期: | 01/31/2015 |
| 预计完成日期: | 01/31/2015 |
状况或疾病
干预/治疗
Dietary Supplement: 9 elite weightlifters
Dietary Supplement: 9elite weightlifters
相
手臂组
| 臂 | 干预/治疗 |
|---|---|
| Experimental: 9 elite weightlifters age: 21 ± 0.5 years, body mass: 80 ± 20 kg, height 175 ± 8.1 cm (mean ± SD). They received "Natural Pomegranate Juice" supplementation during and 48h following the first weightlifting training session. | Dietary Supplement: 9 elite weightlifters Supplements (1500ml) of pomegrenate juice (POMj) were taken three times daily in the 48h which proceed the first tested training sessions (i.e. 250ml × 6 times with 8-h intervals between it). Moreover, during this tested sessions, subject consumed an additional 500ml of POMj. Arm-specific: Experimental: 9 elite weightlifter |
| Placebo Comparator: 9elite weightlifters age: 21 ± 0.5 years, body mass: 80 ± 20 kg, height 175 ± 8.1 cm (mean ± SD). They received "Placebo Juice" supplementation during and 48h following the second weightlifting training session. | Dietary Supplement: 9elite weightlifters Supplements (1500ml) of Placebo juice (PLA) were taken three times daily in the 48h which proceed the second tested training sessions (i.e. 250ml × 6 times with 8-h intervals between it). Moreover, during this tested sessions, subject consumed an additional 500ml of POMj. Arm-specific: Placebo Comparator: 9 elite weightlifter |
资格标准
| 有资格学习的年龄 | 20 Years 至 20 Years |
| 有资格学习的性别 | Male |
| 接受健康志愿者 | 是 |
| 标准 | Inclusion Criteria: - trained at least five sessions per week with 90 to 120 min per session - had an experience of more than 3 years in Olympic weightlifting Exclusion Criteria: - use any antioxidant (e.g., vitamin E, A, C etc..) or anti-inflammatory during the experimentation period and one month before - had injuries during the experimentation period and one month before |
结果
主要结果指标
1. Change in physical performance from using Placebo to using Pomegranate juice [3min after Placebo and Pomegranate training sessions]
2. Change in Acute Hematological responses from using Placebo to using Pomegranate juice [3min after Placebo and Pomegranate training sessions]
3. Change in Acute Biochemical responses from using Placebo to using Pomegranate juice [3min after Placebo and Pomegranate training sessions]
4. Change in Delayed Hematological responses from using Placebo to using Pomegranate juice [48h after Placebo and Pomegranate training sessions]
5. Change in Delayed Biochemical responses from using Placebo to using Pomegranate juice [48h after Placebo and Pomegranate training sessions]
次要成果指标
1. Change in the acute fatigue perception (RPE values) from Placebo to Pomegranate supplementation [3min after Placebo and Pomegranate training sessions]
2. Change in the delayed muscle soreness (DOMS values) from Placebo to Pomegranate supplementation [48 after Placebo and Pomegranate training sessions]
3. Change in the acute oral temperature response from Placebo to Pomegranate supplementation [3min after Placebo and Pomegranate training sessions]
4. Change in the acute Heart rate ( HR) response from Placebo to Pomegranate supplementation [3min after Placebo and Pomegranate training sessions]
5. Change in the acute systolic arterial pressure (SAP) response from Placebo to Pomegranate supplementation [3min after Placebo and Pomegranate training sessions]
6. Baseline values of body mass [at baseline status]
7. baseline values of height [at baseline status]
