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Table 1 (abstract A9). Study characteristics

From: Novelties in Sport Sciences

Study

N

Study design

Intake protocols

Outcome

Ostojic et al. [2]

36

RT,

SB

4 tablets x 3 oral (2g per day)

6 times per day for 20 min topical

14 days

Plasma viscosity ↓

(ROM) recovery ↑

CRP →

Interleukin 6 →

Pain scores →

Drid et al. [4]

8

RT, DB, PC, CO

300 mL of HRW

30 min before exercise

4 days

pH ↑

Bicarbonate (mmol/L) ↔

Lactate (mmol/L) ↓

Heart rate (beats per min) ↔

Aoki et al. [5]

10

RT, DB, PC, CO

500mL × 3 before exercise

7 days

d-ROMs, →

BAP →

CK →

Lactate ↓

Peak torque ↑

Ponte et al.

[6]

8

RT, PC, SB, CO

2 L per day

(pH9.8, free hydrogen content 450 ppb)

14 days

PPO ↑

pH →

Lactate →

HCO3 →

Mikami et al. [7]

159

RT, DB, PC

500mL

0,8mh/L (0,8ppm)

1,0 mg/L (1.0ppm)

VO2max ↑

VAS ↓

Javorac et al. [3]

20

RT, DB, PC, CO

20 min inhalation

7 days

CRP ↓

FER ↓

ESR →

IGF-1 ↓

MVIS ↑

MRS ↑

VO2max →

  1. Legend: RT: randomized trial; DB: double-blinded; PC: placebo-controlled; CO: cross-over; SB: single-blinded; N: participants; HRW: Hydrogen-rich water; d-ROMs: diacron reactive oxygen metabolites; BAP: biological antioxidant potential; CK: creatine kinase; ESR: Erythrocyte sedimentation rate; CRP: C-reactive protein; IGF-1: Insulin-like growth factor 1; MVIS: Maximal voluntary isometric strength; VO2max: Maximal oxygen uptake; VAS: Visual analogue scale; FER: feritin; MRS: maximal running speed; PPO: Peak power output; (ROM) range of motion; ↑- increased; ↓: decrease; ↔ no change