The Effect of Asymmetric Lower-Extremity Muscle Force of Elementary Students on Dynamic Balance during Walking

Abstract Background and Purpose.Measures of postural control may be useful for determining fall risk in older people and for determining the outcomes of treatments aimed at improving balance. Commonly used tools measure the output of the postural control system. The purpose of this study was to determine the degree to which one component of postural control (muscle force) contributes to scores on 3 functional balance measures. Subjects. Fifty community-dwelling volunteers between 65 and 91 years of age (X̄=74.82, SD=6.11) participated. Based on their histories, 11 subjects were classified as being at risk for falling. Methods. Measures were the Berg Balance Scale (BBS), the Functional Reach Test (FRT), and the Timed Get Up & Go Test (GUG). The force generated by 12 lower-extremity muscle groups was measured using a handheld dynamometer. Results. In the group reporting no falls, dorsiflexor and subtalar evertor force accounted for 58% of the score on the BBS, ankle plantar-flexor and subtalar invertor force accounted for 48.4% of the score on the GUG, and ankle plantar-flexor force accounted for 13% of the score on the FRT. Ankle dorsiflexor and hip extensor forces were lower in subjects reporting falls, and force of the ankle dorsiflexors predicted fall status. Conclusion and Discussion. Distal muscle force measures may be able to contribute to the prediction of functional balance scores; however, the muscles involved in the prediction differ depending on the measure of balance.

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Influence of Lower-extremity Muscle Force, Muscle Mass and Asymmetry in Knee Extension Force on Gait Ability in Community-dwelling Elderly Women

Journal of Physical Therapy Science ◽

10.1589/jpts.18.73 ◽

2006 ◽

Vol 18 (1) ◽

pp. 73-79 ◽

Cited By ~ 13

Author(s):

Hayato Nakao ◽

Takahiro Yoshikawa ◽

Tatsuya Mimura ◽

Taketaka Hara ◽

Katsuo Nishimoto ◽

...

Keyword(s):

Lower Extremity ◽

Muscle Mass ◽

Muscle Force ◽

Elderly Women ◽

Knee Extension ◽

Community Dwelling ◽

Lower Extremity Muscle ◽

Extension Force

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The Influence of Lower-Extremity Muscle Force on Gait Characteristics in Individuals With Below-Knee Amputations Secondary to Vascular Disease

Physical Therapy ◽

10.1093/ptj/76.4.369 ◽

1996 ◽

Vol 76 (4) ◽

pp. 369-377 ◽

Cited By ~ 33

Author(s):

Christopher M Powers ◽

Lara A Boyd ◽

Catherine A Fontaine ◽

Jacquelin Perry

Keyword(s):

Lower Extremity ◽

Vascular Disease ◽

Muscle Force ◽

Gait Characteristics ◽

Lower Extremity Muscle

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The Effects of Lower Extremity Muscle Fatigue on Dynamic Balance in Volleyball Players

Iranian Rehabilitation Journal ◽

10.32598/irj.19.1.1003.1 ◽

2021 ◽

Vol 19 (1) ◽

pp. 51-58

Author(s):

Nastaran Ghotbi ◽

Keyword(s):

Lower Extremity ◽

Muscle Fatigue ◽

Repeated Measures ◽

Dynamic Balance ◽

Knee Extensors ◽

Balance Test ◽

Lower Extremity Muscle ◽

Adductor Muscles ◽

Volleyball Players ◽

Muscle Groups

Objectives: Lower extremity muscles are critical for maintaining dynamic balance and athletic performance. Fatigue of these muscles may affect dynamic balance. It is unclear whether fatigue in a particular muscle group can affect dynamic balance more than that in other groups. This study was conducted to evaluate and compare the effects of fatigue in 5 muscle groups on dynamic balance in volleyball players. Methods: Fifteen healthy male volleyball players separately performed the Star Excursion Balance Test before and immediately after the occurrence of fatigue of ankle Plantar Flexor (PF), knee extensor, knee flexor, hip abductor, and hip adductor muscles. Composite reach distance and distance in anterior, posteromedial, and posterolateral directions were recorded, accordingly. Results: Repeated-measures Analysis of Variance (ANOVA) data indicated that fatigue of all muscle groups significantly decreased the mean score of composite (P<0.001). Anterior, posteromedial, and posterolateral distance scores decreased following muscle fatigue of knee extensors and ankle PFs (P<0.05). Discussion: This study suggested that regarding composite reach score, fatigue of ankle, knee, and hip muscles similarly decreased dynamic balance. However, evaluating three main directions revealed that knee extensors and ankle PFs muscles fatigue presented more prominent effects on the explored volleyball players’ balance, compared to the other muscles.

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Clinical Rehabilitation Effect of Postoperative Lower-Limb Training on the Patients Undergoing OLIF Surgery: A Retrospective Study

Pain Research and Management ◽

10.1155/2020/1065202 ◽

2020 ◽

Vol 2020 ◽

pp. 1-6

Author(s):

Haoming Wang ◽

Yachong Huo ◽

Yachao Zhao ◽

Botong Zhang ◽

Dalong Yang ◽

...

Keyword(s):

Lower Extremity ◽

Lower Limb ◽

Muscle Force ◽

Statistical Significance ◽

Intervention Group ◽

Control Group ◽

Postoperative Rehabilitation ◽

Lower Extremity Muscle ◽

Rehabilitation Exercise

Background. In this study, it was aimed to investigate the clinical rehabilitation effect of lower-limb training on the patients that undergo oblique lumbar interbody fusion (OLIF) procedures. Methods. The eligible participants undergoing OLIF procedures between 01/2017 and 07/2019 were identified. All the patients underwent one-segment fusion operation (L3-4 or L4-5). Based on whether the participants received postoperative rehabilitation training, they were divided into two groups: intervention group and control group. Postoperatively, the participants in the intervention group were trained with lower-extremity rehabilitation exercise and maintained for three months. All participants got reexamined at the first postoperative week, the second postoperative week, the first postoperative month, and the third postoperative month (last follow-up). Comparisons were made in terms of the lower-extremity muscle force, visual analogue scale (VAS) score, lumbar JOA score, Oswestry disability index (ODI), the incidence of deep venous thrombosis (DVT), and patient satisfaction. Results. Seventy-seven participants in the intervention group (32 males and 45 females) and 82 in the control group (39 males and 43 females) were incorporated in this study. The median age of the participants was 57 years (39∼73) in the intervention group and 54 years (35∼71) in the control group. No statistical significance between the two groups was found (P>0.05). ODI score was less in the intervention group as compared to the control group in the first week after surgery (P=0.029). VAS and JOA scores were better in the intervention group in the first two weeks after surgery (P<0.05). DVT incidence in the intervention group was lower than the control group at final follow-up (P=0.037). Both group participants have achieved good grading in muscle force rehabilitation but no significant differences between the two groups. Additionally, satisfaction was higher in the intervention group than the control group. Conclusions. In summary, postoperative lower-extremity rehabilitation exercise can effectively accelerate patients’ health recovery from the OLIF surgery and increase their satisfaction.

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Faculty Opinions recommendation of Effect of Sexual Intercourse on Lower Extremity Muscle Force in Strength-Trained Men.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.733230892.793545907 ◽

2018 ◽

Author(s):

R Taylor Segraves

Keyword(s):

Lower Extremity ◽

Sexual Intercourse ◽

Muscle Force ◽

Lower Extremity Muscle

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