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Grounding after moderate eccentric contractions reduces muscle damage.

Brown R, Chevalier G, Hill M - Open Access J Sports Med (2015)

Bottom Line: On day 2, the sham-grounded group experienced significant CK increase (P<0.01) while the CK of the grounded group did not increase significantly; the between-group difference was significant (P=0.04).Grounding significantly reduced the loss of CK from the injured muscles indicating reduced muscle damage.These results warrant further study on the effects of earthing on delayed onset muscle damage.

View Article: PubMed Central - PubMed

Affiliation: Department of Human Physiology, University of Oregon, Eugene, OR, USA.

ABSTRACT
Grounding a human to the earth has resulted in changes in the physiology of the body. A pilot study on grounding and eccentric contractions demonstrated shortened duration of pain, reduced creatine kinase (CK), and differences in blood parameters. This follow-up study was conducted to investigate the effects of grounding after moderate eccentric contractions on pain, CK, and complete blood counts. Thirty-two healthy young men were randomly divided into grounded (n=16) and sham-grounded (n=16) groups. On days 1 through 4, visual analog scale for pain evaluations and blood draws were accomplished. On day 1, the participants performed eccentric contractions of 200 half-knee bends. They were then grounded or sham-grounded to the earth for 4 hours on days 1 and 2. Both groups experienced pain on all posttest days. On day 2, the sham-grounded group experienced significant CK increase (P<0.01) while the CK of the grounded group did not increase significantly; the between-group difference was significant (P=0.04). There was also an increase in the neutrophils of the grounded group on day 3 (P=0.05) compared to the sham-grounded group. There was a significant increase in platelets in the grounded group on days 2 through 4. Grounding produced changes in CK and complete blood counts that were not shared by the sham-grounded group. Grounding significantly reduced the loss of CK from the injured muscles indicating reduced muscle damage. These results warrant further study on the effects of earthing on delayed onset muscle damage.

No MeSH data available.


Related in: MedlinePlus

Creatine kinase levels.
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f2-oajsm-6-305: Creatine kinase levels.

Mentions: The moderate eccentric contractions produced moderate muscle damage. In Table 3 and Figure 2 it can be seen that the CK significantly increased 24 hours after the eccentric contractions in the sham-grounded subjects (P<0.01). However, CK did not increase significantly in the grounded subjects (P=0.14). On day 2, there was a significant difference between the sham-grounded and the grounded groups (P=0.04). On day 3, both groups had CK below their pre-exercise levels (P<0.01).


Grounding after moderate eccentric contractions reduces muscle damage.

Brown R, Chevalier G, Hill M - Open Access J Sports Med (2015)

Creatine kinase levels.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4590684&req=5

f2-oajsm-6-305: Creatine kinase levels.
Mentions: The moderate eccentric contractions produced moderate muscle damage. In Table 3 and Figure 2 it can be seen that the CK significantly increased 24 hours after the eccentric contractions in the sham-grounded subjects (P<0.01). However, CK did not increase significantly in the grounded subjects (P=0.14). On day 2, there was a significant difference between the sham-grounded and the grounded groups (P=0.04). On day 3, both groups had CK below their pre-exercise levels (P<0.01).

Bottom Line: On day 2, the sham-grounded group experienced significant CK increase (P<0.01) while the CK of the grounded group did not increase significantly; the between-group difference was significant (P=0.04).Grounding significantly reduced the loss of CK from the injured muscles indicating reduced muscle damage.These results warrant further study on the effects of earthing on delayed onset muscle damage.

View Article: PubMed Central - PubMed

Affiliation: Department of Human Physiology, University of Oregon, Eugene, OR, USA.

ABSTRACT
Grounding a human to the earth has resulted in changes in the physiology of the body. A pilot study on grounding and eccentric contractions demonstrated shortened duration of pain, reduced creatine kinase (CK), and differences in blood parameters. This follow-up study was conducted to investigate the effects of grounding after moderate eccentric contractions on pain, CK, and complete blood counts. Thirty-two healthy young men were randomly divided into grounded (n=16) and sham-grounded (n=16) groups. On days 1 through 4, visual analog scale for pain evaluations and blood draws were accomplished. On day 1, the participants performed eccentric contractions of 200 half-knee bends. They were then grounded or sham-grounded to the earth for 4 hours on days 1 and 2. Both groups experienced pain on all posttest days. On day 2, the sham-grounded group experienced significant CK increase (P<0.01) while the CK of the grounded group did not increase significantly; the between-group difference was significant (P=0.04). There was also an increase in the neutrophils of the grounded group on day 3 (P=0.05) compared to the sham-grounded group. There was a significant increase in platelets in the grounded group on days 2 through 4. Grounding produced changes in CK and complete blood counts that were not shared by the sham-grounded group. Grounding significantly reduced the loss of CK from the injured muscles indicating reduced muscle damage. These results warrant further study on the effects of earthing on delayed onset muscle damage.

No MeSH data available.


Related in: MedlinePlus