scholarly journals Changes in Ankle Function of University Female Volleyball Players during the Menstrual Cycle: Muscle Strength, Joint Position Sense and Flexibility

2017 ◽  
Vol 32 (4) ◽  
pp. 503-507
Author(s):  
Akina HIGUCHI ◽  
Miku HONMA ◽  
Miyu YAMAMOTO ◽  
Yasuo TANAKA ◽  
Rena HAMANO ◽  
...  
Keyword(s):  
Menstrual Cycle ◽  
Muscle Strength ◽  
Position Sense ◽  
Joint Position Sense ◽  
Joint Position ◽  
Volleyball Players ◽  
Ankle Function

scholarly journals Efficacy of throwing exercise with TheraBand in male volleyball players with shoulder internal rotation deficit: a randomized controlled trial

2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Mohsen Moradi ◽  
Malihe Hadadnezhad ◽  
Amir Letafatkar ◽  
Zohre Khosrokiani ◽  
Julien S. Baker
Keyword(s):  
Rotator Cuff ◽  
Muscle Strength ◽  
Muscle Activation ◽  
Position Sense ◽  
Joint Position Sense ◽  
Emg Activity ◽  
Control Group ◽  
Joint Position ◽  
Rotator Cuff Muscle ◽  
Volleyball Players

Abstract Background The Glenohumeral internal-rotation deficit (GIRD) is related to the altered eccentric external-rotator (ER), the concentric internal-rotator (IR), muscle strength, and the ER: IR ratio. GIRD has been documented as a risk factor for shoulder injuries. However, few studies have investigated the effect of an exercise training on these parameters in athletes with GIRD. Therefore, the purpose of this study was to evaluate the effects of an 8-week throwing exercise with a TheraBand for retraining the rotator cuff on Electromyography (EMG) activity of selected muscles, rotator cuff muscle strength, the glenohumeral (GH) joint IR range of motion (ROM) and GH joint position sense in asymptomatic male volleyball players with GIRD. Methods Sixty male volleyball players with GIRD were randomized into either a training group or a control group. The experimental group underwent an 8-week throwing exercise with a TheraBand including 5 sessions of stretching and 3 sessions of strengthening exercises per week. The control group received an active self-exercise program. EMG (onset time and muscle activation), shoulder range of motion (ROMs), strength and GH joint position sense were all assessed pre and post trainings. Results There were statistically significant within-group differences in the EMG activity of the anterior deltoid (p = 0.005), middle deltoid (p = 0.007), posterior deltoid (p = 0.004), infraspinatus (p = 0.001) and supraspinatus (p = 0.001) muscles, IR ROM (p = 0.001), rotator cuff muscle strength ratio (p = 0.001), and GH joint position sense (p = 0.033) in the experimental group. A 2 × 2 analysis of variance with a mixed model design and independent and paired t-tests were used for statistical analysis. Conclusions Throwing exercise with a TheraBand improved shoulder muscle activation, IR ROM, rotator cuff muscle strength ratio and GH joint position sense in participants with GIRD. These findings may improve the treatment of GIRD in a clinical setting. Although the results are significant, further studies should follow up the long-term effects of the Throwing exercise with a TheraBand on GIRD. Trial registration Current Controlled Trials using the UMIN-RCT website with ID number of, UMIN000038416 “Retrospectively registered” at 2019/10/29.

scholarly journals Effects of Tai Chi versus Proprioception Exercise Program on Neuromuscular Function of the Ankle in Elderly People: A Randomized Controlled Trial

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Jing Liu ◽  
Xue-Qiang Wang ◽  
Jie-Jiao Zheng ◽  
Yu-Jian Pan ◽  
Ying-Hui Hua ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Elderly People ◽  
Outcome Measures ◽  
Tai Chi ◽  
Exercise Program ◽  
Neuromuscular Function ◽  
Position Sense ◽  
Joint Position Sense ◽  
Elderly Subjects ◽  
Joint Position

Background. Tai Chi is a traditional Chinese medicine exercise used for improving neuromuscular function. This study aimed to investigate the effects of Tai Chi versus proprioception exercise program on neuromuscular function of the ankle in elderly people.Methods. Sixty elderly subjects were randomly allocated into three groups of 20 subjects per group. For 16 consecutive weeks, subjects participated in Tai Chi, proprioception exercise, or no structured exercise. Primary outcome measures included joint position sense and muscle strength of ankle. Subjects completed a satisfaction questionnaire upon study completion in Tai Chi and proprioception groups.Results. (1) Both Tai Chi group and proprioception exercise group were significantly better than control group in joint position sense of ankle, and there were no significant differences in joint position sense of ankle between TC group and PE group. (2) There were no significant differences in muscle strength of ankle among groups. (3) Subjects expressed more satisfaction with Tai Chi than with proprioception exercise program.Conclusions. None of the outcome measures on neuromuscular function at the ankle showed significant change posttraining in the two structured exercise groups. However, the subjects expressed more interest in and satisfaction with Tai Chi than proprioception exercise.

scholarly journals Influence of Menstrual Cycle Phases on Neural Excitability in the Primary Somatosensory Cortex and Ankle Joint Position Sense

2020 ◽  
Vol 1 (1) ◽  
pp. 167-178
Author(s):  
Koyuki Ikarashi ◽  
Kaho Iguchi ◽  
Yudai Yamazaki ◽  
Koya Yamashiro ◽  
Yasuhiro Baba ◽  
...  
Keyword(s):  
Menstrual Cycle ◽  
Somatosensory Cortex ◽  
Ankle Joint ◽  
Position Sense ◽  
Joint Position Sense ◽  
Primary Somatosensory Cortex ◽  
Joint Position ◽  
Neural Excitability

scholarly journals The Effects of Estrogen and Progesterone Hormones on Active Hip Joint Position Sense in Healthy Women in Different Phases of a Menstrual Cycle

2021 ◽  
Author(s):  
Maliheh Mosavi Ghomi ◽  
Mehrdad Shariati ◽  
Mokhtar Mokhtari ◽  
Fatemeh Ramezani Nowrozani
Keyword(s):  
Menstrual Cycle ◽  
Hip Joint ◽  
Position Sense ◽  
Joint Position Sense ◽  
Follicular Phase ◽  
Joint Position ◽  
Activity Increase ◽  
Healthy Women ◽  
Significant Difference ◽  
The Brain

Introduction: The proprioceptive system is a sensory system based on an individual’s knowledge of his or her body. This knowledge is transmitted to the brain through inputs received from joints, muscles, tendons, and ligaments. As a result, these inputs inadvertently inform the brain of the state of the body’s muscles. Numerous factors can affect this system. This study aimed to investigate the effect of estrogen and progesterone hormones on understanding and recognizing the proprioceptive sense of hip joint in healthy women during the menstrual cycle. Materials and Methods: In this quasi-experimental study, 15 healthy women participated voluntarily. They had regular menstrual cycles without any history of disease and drug use. The concentration of estrogen and progesterone during a cycle in the follicular (4-6 days), ovulation, and luteal phases were evaluated to detect their effects on the sense of perception and cognition of the proprioceptive joint in the two movements of abduction and flexion by the target angle reconstruction method (30°). Results: The errors of active joint position sense were reduced in abduction and flexion during ovular and luteal phases compared to the follicular phase. However, in the flexion direction of hip movement, there was a significant difference in absolute error during hormonal changes in the menstrual cycle (P=0.000). Conclusion: The results showed that due to more involvement of motor control of hip muscles joint by motor neuron activity (increase release of estrogen hormone), all errors reduced in ovular and luteal phases compared to the follicular phase. The flexion movement is more disturbed, and due to more flexibility in this direction, absolute errors are significantly reduced. This reduction of errors in ovular and luteal phases compared to the regular stage of hormone release (follicular phase) may cause some rigidity in the hip joint and an increase of trauma  in external mechanical forces. This study’s findings showed that the lowest proprioception sensation is in the follicular phase. Decreasing the concentration of sex hormones in this phase is likely to reduce the sense of recognition of the joint, thus increasing the likelihood of injury in this phase. Findings from this study showed that the lowest proprioceptic sensation is in  the follicular phase. The results of this study showed that the least sense is Prvpryvsptyk in Fazfvlykvlar.

The effects of menstrual cycle on the knee joint position sense: preliminary study

2005 ◽  
Vol 13 (8) ◽  
pp. 649-653 ◽  
Author(s):  
Sedat Tolga Aydoğ ◽  
Zafer Hasçelik ◽  
H. Ali Demirel ◽  
Onur Tetik ◽  
Ece Aydoğ ◽  
...  
Keyword(s):  
Menstrual Cycle ◽  
Knee Joint ◽  
Position Sense ◽  
Joint Position Sense ◽  
Joint Position ◽  
Preliminary Study
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