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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 MT (muscle tension) of VG and TTG and results of the Tukey post hoc test. Significant differences (α = 5 %) between mean values of measurement are marked with an asterisk
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Fig5: Development of maximum MT (muscle tension) of VG and TTG and results of the Tukey post hoc test. Significant differences (α = 5 %) between mean values of measurement are marked with an asterisk

Mentions: Figure 5 illustrates the course of the mean muscle tension (MT) at maximum knee angle over the duration of the study. The conclusion we can draw from the significant F values for both groups (F = 8.1 for the VG; F = 6.91 for the TTG) is that maximal strength training with and without vibration influences the maximum ROM and maximum MT of the trained musculature. The Tukey post hoc test showed that the increase of MT in the posttest differed significantly from all previous measurements of VG. This is also true for the retest values of VG when compared to all other measurements except for the pretest. Similarly, we cannot assess any changes in MT for the TTG’s first 3 weeks of training (i.e., the pretest period). Statistically significant differences were measured between the pretest, first and third measurements, and posttest. These changes indicate an increase in MT at maximum knee angle. Finally, a significant decrease in MT can be ascertained between posttest and retest. The significant changes from the post hoc analysis were illustrated in Fig. 5. The subsequent t test for dependent samples showed the changes in both groups from pretest to posttest (see Table 6).Fig. 5


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 MT (muscle tension) of VG and TTG and results of the Tukey post hoc test. Significant differences (α = 5 %) between mean values of measurement are 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

Fig5: Development of maximum MT (muscle tension) of VG and TTG and results of the Tukey post hoc test. Significant differences (α = 5 %) between mean values of measurement are marked with an asterisk
Mentions: Figure 5 illustrates the course of the mean muscle tension (MT) at maximum knee angle over the duration of the study. The conclusion we can draw from the significant F values for both groups (F = 8.1 for the VG; F = 6.91 for the TTG) is that maximal strength training with and without vibration influences the maximum ROM and maximum MT of the trained musculature. The Tukey post hoc test showed that the increase of MT in the posttest differed significantly from all previous measurements of VG. This is also true for the retest values of VG when compared to all other measurements except for the pretest. Similarly, we cannot assess any changes in MT for the TTG’s first 3 weeks of training (i.e., the pretest period). Statistically significant differences were measured between the pretest, first and third measurements, and posttest. These changes indicate an increase in MT at maximum knee angle. Finally, a significant decrease in MT can be ascertained between posttest and retest. The significant changes from the post hoc analysis were illustrated in Fig. 5. The subsequent t test for dependent samples showed the changes in both groups from pretest to posttest (see Table 6).Fig. 5

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