In the original article, there was a mistake in Table 1 as published. Some of the reference details in Table 1 were not complete. The corrected Table 1 appears below.
Table 1.
Characteristics of the studies include.
| References | Study design | Sample | Age |
Intervention/
control |
Duration | RR extract | Exercise test |
|---|---|---|---|---|---|---|---|
| Williams et al. (6) | Randomized double-blinded, crossover, counterbalanced clinical trial | 10 Resistance-trained individuals (10 M) | 24.8 ± 5.6 years | Group1: 1,500 mg/day of Rhodiola rosea and took an additional 500 mg dose of corresponding treatment 30 min perid to exercise testing. Group2: placebo (PL; gluten-freecornstarch) |
3-day + 30 min prior | NOW Food Inc., Bloomingdale, IL, USA | Resistance exercise: 1set × 2 explosive reps at 75% of one-repetition maximum(1 RM), 3 sets × repetitions to failure (RTF) at 75% 1 RM |
| MedBallmann et al. (7) | Randomized blinded and counter- balanced clinical trial | 11 Physically active participants (11 W) | 19.4 ± 0.8 years | Group1: Supplemented with 500 mg of Rhodiola rosea three times daily (~1,500 mg/day)and took an additional 500 mg dose of corresponding treatment 30 min prior to testing of each trial. Group2: Placebo (glu- ten-free cornstarch) |
3-day+30 min prior | NOW Food Inc., Bloomingdale, IL, USA | Completed 3 × 15 second Wingate Anaerobic Tests (WAnTs) |
| Lin et al. (8) | Randomized double-blind, crossover clinical trial | 12 heathy subjects. (12 M) | 24.7 ± 0.5 years | Group1: Two Rhodiola rosea capsules (400 mg Rhodiola rosea per capsule) daily. Group2: Placebo (hydrox- ymethylcellulose) |
After 3-day exercise period and during 5-day recovery period | Standard Chem & Pharm Co., Taiwan | Continuous endurance exercise: 30-min run at 75% VO2max |
| Jowko et al. (9) | Randomized double-blind clinical trial | 26 healthy students. (26 M) | PL: 20.9 ± 0.2 years. RR: 20.5 ± 0.3 years | Group1: 600 mg/day Rhodiola rosea Group2: Placebo |
4 weeks before exercise test | Naturell, Sweden | Incremental cycle ergometer tests |
| Duncan et al. (10) | Double-blind crossover clinical trial | 10 healthy young individuals and recreation exercisers. (10 M) | 26 ± 6 years | Group1: 3 mg/kg body mass of Rhodiola rosea placed in a colored, opaque gelatin capsule. Group2: Placebo |
60 min before exercise test | Indigo Herbs, Glastonbury, UK | Resistance exercise: completed two 30-min submaximal cycling trials at a workload of 70% VO2maxin a fasted state |
| Shanely et al. (11) | Randomized double-blind clinical trial | 48 runners. (35 M and 13 W) | 25–65 years | Group1: 600 mg/day Rhodiola rosea extract before running a marathon (2 Rhodiola rosea capsule and each capsule contained 300 mg of Rhodiola rosea extract). Group2: Placebo |
30 days prior to and the day of the marathon and seven days after marathon | PL Thomas & Co., Inc. (Morristown New Jersey) | A competitive marathon |
| Noreen et al. (12) | Randomized double-blind,crossover clinical trial | 18 recreationally active subjects. (18 W) | 22 ± 3.3years | Group1: 3 mg/kg of Rhodiola rosea. Group2: Placebo (carbohydrate) |
1 h before test | Bulknutrition.com, Northborough, MA, USA | 10-min warm-up followed by a simulated 6-mile time trial on a variable grade course using the Velotron electronic bicycle ergometer |
| Parisi et al. (13) | Double-blind clinical trial | 14 well-trained athletes. (14 M) | 25 ± 5 years | Group1: 170 mg/day Rhodiola rosea. Group2: Placebo |
4 weeks before exercise test | Unspecified | Cardio-pulmonary exhaustion test with the cycloergometer at 75% VO2max |
| Skarpanska- Stejnborn et al. (14) | Randomized double-blind clinical trial | 22 professional rowers. (22 M) | PL: 21.0 ± 0.9 years. RR: 20.4 ± 1.2 years | Group1: 100 mg of Rhodiola rosea extract twice daily. Group2: Placebo |
4 weeks before exercise test | Unspecified | 2,000-m maximum test on a rowing ergometer |
| Walker et al. (15) | Randomized double-blind clinical trial | 12 resistance -trained subjects. (12 M) | 29.92 ± 4.51 years | Group1: 1,500 mg/day Rhodiola rosea and 1,000 mg the day of the test. Group 2: Placebo |
3-day + the day of the test | Bali Herbal, Singapore | Incremental forearm wrist flexion exercise to volitional fatigue |
The authors apologize for this error and state that this does not change the scientific conclusions of the article in any way. The original article has been updated.
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