scholarly journals Rhythmic arm swing enhances patterned locomotor-like muscle activity in passively moved lower extremities

2015 ◽  
Vol 3 (3) ◽  
pp. e12317 ◽  
Author(s):  
Tetsuya Ogawa ◽  
Takahiko Sato ◽  
Toru Ogata ◽  
Shin-Ichiro Yamamoto ◽  
Kimitaka Nakazawa ◽  
...  
Keyword(s):  
Muscle Activity ◽  
Lower Extremities ◽  
Arm Swing

scholarly journals Pre-Movement Cortico-Muscular Dynamics Underlying Improved Parkinson Gait Initiation after Instructed Arm Swing

2020 ◽  
Vol 10 (4) ◽  
pp. 1675-1693
Author(s):  
Joyce B. Weersink ◽  
Silvano R. Gefferie ◽  
Teus van Laar ◽  
Natasha M. Maurits ◽  
Bauke M. de Jong
Keyword(s):  
Muscle Activity ◽  
Motor Program ◽  
Group Differences ◽  
Gait Initiation ◽  
Movement Onset ◽  
Arm Swing ◽  
Auditory Cue ◽  
Eeg Changes ◽  
Motor Initiation ◽  
Spectral Perturbation

Background: The supplementary motor area (SMA) is implicated in both motor initiation and stereotypic multi-limb movements such as walking with arm swing. Gait in Parkinson’s disease exhibits starting difficulties and reduced arm swing, consistent with reduced SMA activity. Objective: We tested whether enhanced arm swing could improve Parkinson gait initiation and assessed whether increased SMA activity during preparation might facilitate such improvement. Methods: Effects of instructed arm swing on cortical activity, muscle activity and kinematics were assessed by ambulant EEG, EMG, accelerometers and video in 17 Parkinson patients and 19 controls. At baseline, all participants repeatedly started walking after a simple auditory cue. Next, patients started walking at this cue, which now meant starting with enhanced arm swing. EEG changes over the putative SMA and leg motor cortex were assessed by event related spectral perturbation (ERSP) analysis of recordings at Fz and Cz. Results: Over the putative SMA location (Fz), natural PD gait initiation showed enhanced alpha/theta synchronization around the auditory cue, and reduced alpha/beta desynchronization during gait preparation and movement onset, compared to controls. Leg muscle activity in patients was reduced during preparation and movement onset, while the latter was delayed compared to controls. When starting with enhanced arm swing, these group differences virtually disappeared. Conclusion: Instructed arm swing improves Parkinson gait initiation. ERSP normalization around the cue indicates that the attributed information may serve as a semi-internal cue, recruiting an internalized motor program to overcome initiation difficulties.

scholarly journals Gait Patterns and Muscle Activity in the Lower Extremities of Elderly Women during Underwater Treadmill Walking against Water Flow

2007 ◽  
Vol 26 (6) ◽  
pp. 579-586 ◽  
Author(s):  
Tomoki Shono ◽  
Kenji Masumoto ◽  
Kazutaka Fujishima ◽  
Noboru Hotta ◽  
Tetsuro Ogaki ◽  
...  
Keyword(s):  
Water Flow ◽  
Muscle Activity ◽  
Elderly Women ◽  
Lower Extremities ◽  
Treadmill Walking ◽  
Gait Patterns

scholarly journals Effects of Kinesio Taping with Squat Exercise on the Muscle Activity, Muscle Strength, Muscle Tension, and Dynamic Stability of Softball Players in the Lower Extremities: A Randomized Controlled Study

2021 ◽  
Vol 19 (1) ◽  
pp. 276
Author(s):  
Hyeon-Hee Kim ◽  
Kyung-Hun Kim
Keyword(s):  
Muscle Strength ◽  
Lower Extremity ◽  
Dynamic Stability ◽  
Muscle Activity ◽  
Muscle Tone ◽  
Lower Extremities ◽  
Controlled Study ◽  
Kinesio Taping ◽  
Lower Extremity Muscle ◽  
Squat Exercise

Background and purpose: Knee injuries are common among female softball players, and the stability of the lower extremities and the strength of the knee are essential factors for them. The purpose of this study was to investigate the effect of Kinesio taping with squat exercise (KTSE) on lower extremity muscle activity, muscle strength, muscle tone, and dynamic stability of softball players. Methods: In this study, 40 softball players were randomly assigned to the KTSE group and sham taping with squat exercise (SKTSE) group. All subjects were tested three times a week for 6 weeks, i.e., for a total of 18 times. To evaluate the lower-extremity muscle activity, muscle strength, and muscle tone of the lower extremities, as well as dynamic stability, we used Noraxon Mini DTS, a digital muscular meter from JTech Medical, MyotonPRO, and the side hop test (a clinical evaluation method), respectively. These items were measured before the experiment and 6 weeks after the start of the experiment. Results: Both groups showed significant differences in lower-extremity muscle activity, muscle strength, muscle tone, and dynamic stability (p < 0.05). After the experiment, significant effects on lower-extremity muscle activity, muscle strength, muscle tone, and dynamic stability were observed in the KTSE group compared with in the SKTSE group (p < 0.05). Conclusions: KTSE did not have a negative effect on all items of the functional performance test. KTSE improved lower-extremity muscle activity, muscle strength, muscle tone, and dynamic stability.

scholarly journals Knee Pads Do Not Affect Physical Performance in Young Female Volleyball Players

Children ◽  
2021 ◽  
Vol 8 (9) ◽  
pp. 748
Author(s):  
Anja Lazić ◽  
Milovan Bratić ◽  
Stevan Stamenković ◽  
Slobodan Andrašić ◽  
Nenad Stojiljković ◽  
...  
Keyword(s):  
Lower Extremities ◽  
Young Female ◽  
T Test ◽  
Arm Swing ◽  
Linear Speed ◽  
Positive Effects ◽  
Explosive Power ◽  
Increased Risk ◽  
Volleyball Players ◽  
Physical Abilities

Knee pads have become increasingly popular among volleyball players. Given the fact high-intensity activities that are crucial to successfully playing this sport lead to an increased risk of a knee injury, the primary use of knee pads is to prevent potential injury. However, no research has been carried out to explain the effects of knee pads on the most important physical abilities in volleyball players, thus directly affecting performance. This study was undertaken to determine the effects of knee pads on the explosive power of the lower extremities, linear speed, and agility in young female volleyball players. In two separated sessions, 84 female volleyball players (age: 14.83 ± 0.72 years; height: 163.19 ± 8.38 cm; body mass: 53.64 ± 10.42 kg; VE: 5.30 ± 3.39 years) completed squat jumps (SJ), countermovement jumps (CMJ) with and without arm swing, linear sprints at 5-m and 10-m, modified t-test, and 5-10-5 shuttle test. Data analyses included descriptive statistics, paired sample T-tests and use of effect size (ES). There was no statistical difference between the two conditions for SJ (p = 0.156; ES = 0.18), CMJ (p = 0.817; ES = 0.03), CMJ with arm swing (p = 0.194; ES = 0.14), linear sprint at 5 m (p = 0.789; ES = 0.03) and 10 m (p = 0.907; ES = −0.01), modified t-test (p = 0.284; ES = 0.13), and 5-10-5 shuttle test (p = 0.144; ES = 0.19). Wearing knee pads has neither an inhibitory nor positive effects on explosive power of the lower extremities, linear speed, and agility in young female volleyball players.

Difference Of Anaerobic Capacity, Muscle Activity Of Lower Extremities In Win-gate Test According To Events Of Cyclists

2017 ◽  
Vol 49 (5S) ◽  
pp. 567
Author(s):  
Da-Woon Park ◽  
Moo-Yeop Ji ◽  
Shun-Zhe Piao ◽  
Dong-Woo Kim ◽  
Tae-Yeon Kim ◽  
...  
Keyword(s):  
Muscle Activity ◽  
Anaerobic Capacity ◽  
Lower Extremities

scholarly journals Walking and Jogging: Quantification of Muscle Activity of the Lower Extremities

10.5772/22727 ◽  
2011 ◽  
Author(s):  
Begona Gavilanes-Miranda ◽  
Juan J. Goiriena De Gandarias ◽  
Gonzalo A.
Keyword(s):  
Muscle Activity ◽  
Lower Extremities
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