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Effect of Segment-Body Vibration on Strength Parameters.

Goebel RT, Kleinöder H, Yue Z, Gosh R, Mester J - Sports Med Open (2015)

Bottom Line: At the conclusion of the training, a 2-week detraining was imposed and then the study concluded with posttests and retest.Moreover, the muscle tension at maximum knee angle increased less in VG (approximately 35 %) compared to TG (approximately 46 %).We conclude that segment-body vibrations applied in resistance training can offer an effective tool to increase maximum isometric force, compared to traditional training.

View Article: PubMed Central - PubMed

Affiliation: Sport Science Program, Qatar University, P.O. Box 2713, Doha, Qatar.

ABSTRACT

Background: In this study, we examine the biomechanical advantage of combining localized vibrations to hamstring muscles involved in a traditional resistance training routine.

Methods: Thirty-six male and female participants with at least 2 years of experience in resistance training were recruited from the German Sport University Cologne. The participants were randomized into two training groups: vibration training group (VG) and traditional training group (TTG). Both groups underwent a 4-week training phase, where each participant worked out at 70 % of the individual 1 repeat maximum (RM-maximum load capacity of a muscle for one lift to fatigue) (4 sets with 12 repetitions each). For participants in the VG group, local vibration was additionally applied directly to hamstring muscles during exercise. A 2-week examination phase preceded the pretests. After the pretests, the subjects underwent a prescribed training for 4 weeks. At the conclusion of the training, a 2-week detraining was imposed and then the study concluded with posttests and retest.

Results: The measured parameters were maximum isometric force of the hamstrings and maximum range of motion and muscle tension at maximum knee angle. The study revealed a significant increase in maximum isometric force in both training groups (VG = 21 %, TTG = 14 %). However, VG groups showed an increase in their range of motion by approximately 2 %. Moreover, the muscle tension at maximum knee angle increased less in VG (approximately 35 %) compared to TG (approximately 46 %).

Conclusions: We conclude that segment-body vibrations applied in resistance training can offer an effective tool to increase maximum isometric force, compared to traditional training. The cause for these findings can be attributed to the additional local vibration stimulus.

No MeSH data available.


Related in: MedlinePlus

Development of maximum isometric force (Fmax) in VG and TTG (Tukey post hoc test). Significant differences (α = 5 %) between mean values of measurements were marked with an asterisk
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Fig4: Development of maximum isometric force (Fmax) in VG and TTG (Tukey post hoc test). Significant differences (α = 5 %) between mean values of measurements were marked with an asterisk

Mentions: The progression of the mean maximum isometric force (in percent) over the duration of the study is plotted in Fig. 4. The mean of the pretest values for both groups was normalized to 100 %. The force (F) values of 10.22 in the VG and 8.19 in the TTG became significant in the one-way ANOVA with repeated measurements. Thus, both interventions, i.e., strengthening with and without vibration, produced a significant increase on maximum force. However, more useful information could be gleaned using the post hoc test (Tukey) which provides information about the effects of the training time on maximum force.Fig. 4


Effect of Segment-Body Vibration on Strength Parameters.

Goebel RT, Kleinöder H, Yue Z, Gosh R, Mester J - Sports Med Open (2015)

Development of maximum isometric force (Fmax) in VG and TTG (Tukey post hoc test). Significant differences (α = 5 %) between mean values of measurements were marked with an asterisk
© Copyright Policy - open-access
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4526247&req=5

Fig4: Development of maximum isometric force (Fmax) in VG and TTG (Tukey post hoc test). Significant differences (α = 5 %) between mean values of measurements were marked with an asterisk
Mentions: The progression of the mean maximum isometric force (in percent) over the duration of the study is plotted in Fig. 4. The mean of the pretest values for both groups was normalized to 100 %. The force (F) values of 10.22 in the VG and 8.19 in the TTG became significant in the one-way ANOVA with repeated measurements. Thus, both interventions, i.e., strengthening with and without vibration, produced a significant increase on maximum force. However, more useful information could be gleaned using the post hoc test (Tukey) which provides information about the effects of the training time on maximum force.Fig. 4

Bottom Line: At the conclusion of the training, a 2-week detraining was imposed and then the study concluded with posttests and retest.Moreover, the muscle tension at maximum knee angle increased less in VG (approximately 35 %) compared to TG (approximately 46 %).We conclude that segment-body vibrations applied in resistance training can offer an effective tool to increase maximum isometric force, compared to traditional training.

View Article: PubMed Central - PubMed

Affiliation: Sport Science Program, Qatar University, P.O. Box 2713, Doha, Qatar.

ABSTRACT

Background: In this study, we examine the biomechanical advantage of combining localized vibrations to hamstring muscles involved in a traditional resistance training routine.

Methods: Thirty-six male and female participants with at least 2 years of experience in resistance training were recruited from the German Sport University Cologne. The participants were randomized into two training groups: vibration training group (VG) and traditional training group (TTG). Both groups underwent a 4-week training phase, where each participant worked out at 70 % of the individual 1 repeat maximum (RM-maximum load capacity of a muscle for one lift to fatigue) (4 sets with 12 repetitions each). For participants in the VG group, local vibration was additionally applied directly to hamstring muscles during exercise. A 2-week examination phase preceded the pretests. After the pretests, the subjects underwent a prescribed training for 4 weeks. At the conclusion of the training, a 2-week detraining was imposed and then the study concluded with posttests and retest.

Results: The measured parameters were maximum isometric force of the hamstrings and maximum range of motion and muscle tension at maximum knee angle. The study revealed a significant increase in maximum isometric force in both training groups (VG = 21 %, TTG = 14 %). However, VG groups showed an increase in their range of motion by approximately 2 %. Moreover, the muscle tension at maximum knee angle increased less in VG (approximately 35 %) compared to TG (approximately 46 %).

Conclusions: We conclude that segment-body vibrations applied in resistance training can offer an effective tool to increase maximum isometric force, compared to traditional training. The cause for these findings can be attributed to the additional local vibration stimulus.

No MeSH data available.


Related in: MedlinePlus