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Table 3 Between-group comparisons

From: Effects of Methylsulfonylmethane (MSM) on exercise-induced oxidative stress, muscle damage, and pain following a half-marathon: a double-blind, randomized, placebo-controlled trial

Outcome

Group

N

T1 (15 Min.)

T2 (90 Min.)

T3 (1 Day)

T4 (2 Day)

8OHdG (ng/mL)

MSM

11

10.87 (9.90–11.83)

10.72 (9.55–11.89)

9.12 (8.09–10.15)

9.13 (8.13–10.13)

Placebo

11

10.32 (9.36–11.29)

9.79 (8.61–10.96)

8.08 (7.05–9.11)

7.86 (6.86–8.86)

ΔGroup

0.54 (−0.84–1.92)

0.94 (−0.74–2.61)

1.04 (−0.43–2.51)

1.27 (−0.17–2.71)

MDA (μM)

MSM

11

26.6 (21.7–31.4)

18.8 (14.9–22.6)

15.7 (13.3–18.1)

15.9 (13.0–18.8)

Placebo

11

22.9 (18.1–27.7)

17.9 (14.0–21.7)

16.7 (14.3–19.2)

18.7 (15.8–21.6)

ΔGroup

3.7 (−3.2–10.5)

0.9 (−4.6–6.4)

−1.1 (−4.5–2.4)

−2.8 (−6.9–1.4)

logCK (U/L)

MSM

11

2.26 (2.08–2.43)

2.33 (2.15–2.52)

2.67 (2.38–2.95)

2.40 (2.14–2.66)

Placebo

11

2.24 (2.07–2.41)

2.30 (2.12–2.48)

2.49 (2.21–2.78)

2.29 (2.03–2.55)

ΔGroup

0.02 (−0.23–0.26)

0.03 (−0.23–0.29)

0.18 (−0.24–0.58)

0.11 (−0.26–0.48)

LDH (U/L)

MSM

11

224.3 (199.2–249.3)

228.3 (199.3–257.2)

191.0 (172.2–209.7)

183.1 (163.4–202.7)

Placebo

11

236.5 (211.5–261.5)

236.6 (207.6–265.5)

185.8 (167.0–204.5)

177.1 (157.5–196.7)

ΔGroup

−12.2 (−47.8–23.4)

−8.3 (−49.5–32.9)

5.2 (−21.5–31.9)

6.0 (−22.0–33.9)

Muscle Pain (mm)

MSM

11

28.7 (11.6–45.9)

28.3 (9.9–46.8)

31.2 (14.3–48.2)

21.8 (7.6–35.9)

Placebo

10

48.5 (32.2–64.9)

38.9 (21.2–56.5)

41.2 (25.0–57.3)

21.1 (7.6–34.6)

ΔGroup

−19.8 a (−43.7–4.1)

−10.6 a (−36.3–15.2)

−10.0 a (−33.5–13.7)

−0.7 (−20.4–19.1)

Joint Pain (mm)

MSM

11

29.1 (14.7–43.5)

26.6 (9.6–43.6)

18.6 (2.9–34.2)

14.9 (−2.8–32.5)

Placebo

10

38.0 (24.2–51.7)

35.7 (19.5–51.9)

29.3 (14.4–44.2)

17.9 (1.1–34.7)

ΔGroup

−8.9 (−29.1–11.3)

−9.1 (−33.0–14.7)

−10.7 a (−32.7–11.2)

−3.0 (−27.8–21.7)

  1. Results adjusted for mean-centered baseline. Group results reported as Mean (95% confidence interval). ΔGroup indicates between group differences at each timepoint (MSM – Placebo), results reported with 95% confidence interval
  2. aClinically significant (ΔGroup ≥ 10) betweeen-group pain outcomes