Limits...
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

Neutrophils.
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC4590684&req=5

f3-oajsm-6-305: Neutrophils.

Mentions: On day 2, the sham-grounded subjects’ neutrophils decreased, but the grounded subjects’ neutrophils increased (normal range 1.6–8.3 K/µL). The statistical test between groups was not significant (P=0.06). However, the between-group difference on day 3 was significant (P=0.05; Table 5 and Figure 3).


Grounding after moderate eccentric contractions reduces muscle damage.

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

Neutrophils.
© Copyright Policy
Related In: Results  -  Collection

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

f3-oajsm-6-305: Neutrophils.
Mentions: On day 2, the sham-grounded subjects’ neutrophils decreased, but the grounded subjects’ neutrophils increased (normal range 1.6–8.3 K/µL). The statistical test between groups was not significant (P=0.06). However, the between-group difference on day 3 was significant (P=0.05; Table 5 and Figure 3).

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