scholarly journals Effects of Vibration Rolling with and without Dynamic Muscle Contraction on Ankle Range of Motion, Proprioception, Muscle Strength and Agility in Young Adults: A Crossover Study

2020 ◽  
Vol 17 (1) ◽  
pp. 354 ◽  
Author(s):  
Bo-Jhang Lyu ◽  
Chia-Lun Lee ◽  
Wen-Dien Chang ◽  
Nai-Jen Chang
Keyword(s):  
Young Adults ◽  
Muscle Strength ◽  
Muscle Contraction ◽  
Range Of Motion ◽  
Exercise Performance ◽  
Plantar Flexion ◽  
Ankle Dorsiflexion ◽  
Plantar Flexor ◽  
Flexor Muscle ◽  
Warm Up

Vibration rolling (VR) has emerged as a self-myofascial release (SMR) tool to aid exercise performance when warming up. However, the benefits of VR on exercise performance when combined with dynamic muscle contraction are unclear. The purpose of this study was to investigate the immediate effects of the combination of VR with dynamic muscle contraction (DVR), VR, and static stretching (SS) during warm-up on range of motion (ROM), proprioception, muscle strength of the ankle, and agility in young adults. In this crossover design study, 20 recreationally active adults without musculoskeletal disorders completed three test sessions in a randomized order, with 48 h of rest between each session. Participants completed one warm-up intervention and its measurements on the same day; different warm-up interventions and measurements were performed on each of the three days. The measurements included ankle dorsiflexion and plantarflexion ROM, ankle joint proprioception, muscle strength, and agility. After DVR and VR intervention, ankle dorsiflexion ROM (both DVR and VR, p < 0.001), plantarflexion ROM (both DVR and VR, p < 0.001), plantar flexor muscle strength (DVR, p = 0.007; VR, p < 0.001), and agility (DVR, p = 0.016; VR, p = 0.007) significantly improved; after SS intervention, ankle dorsiflexion and plantar flexion ROM (dorsiflexion, p < 0.001; plantar flexion, p = 0.009) significantly improved, but muscle strength and agility were not enhanced. Compared with SS, DVR and VR significantly improved ankle plantar flexor muscle strength (p = 0.008 and p = 0.001, respectively). Furthermore, DVR significantly improved ankle dorsiflexion compared with VR (p < 0.001) and SS (p < 0.001). In conclusion, either DVR, VR, or SS increased ankle ROM, but only DVR and VR increased muscle strength and agility. In addition, DVR produced considerable increases in ankle dorsiflexion. These findings may have implications for warm-up prescription and implementation in both rehabilitative and athletic practice settings.

scholarly journals The Relationship Between Muscle Strength and Range of Motion in Lower Extremity With Balance and Risk of Falling in Elderl

2020 ◽  
Vol 10 (1) ◽  
pp. 33-40
Author(s):  
Hamed Zarei ◽  
◽  
Ali Asghar Norasteh ◽  
Masoomeh Koohboomi ◽  
◽  
...  
Keyword(s):  
Muscle Strength ◽  
Range Of Motion ◽  
Significant Relationship ◽  
Dynamic Balance ◽  
Plantar Flexion ◽  
The Elderly ◽  
Ankle Dorsiflexion ◽  
Risk Of Falling ◽  
Healthy Elderly ◽  
Hip Extension

Purpose: The present study examined the relationship between muscle strength and range of motion in lower extremity with balance and risk of falling in the elderly. Methods: This was a cross-sectional study. The statistical population included healthy elderly (Mean±SD age: 65.64±4.95 y) in Rasht City, Iran. The study was conducted on 65 healthy elderly males who met the study inclusion criteria and were selected by convenience sampling method. In this study, to measure static and dynamic balance, Sharpened Romberg test and Get Up and Go test were conducted, respectively. Additionally, the falling risk was measured by the Berg Balance Scale. Moreover, the maximum isometric force of the muscle groups in the lower extremities was measured using a hand-held dynamometer, and the range of motion was measured by a goniometer. The obtained data were analyzed using descriptive and analytical statistics by SPSS. Results: The present study results demonstrated that the muscle strength of hip extension, hip abduction, hamstring, quadriceps, and ankle plantarflexion had a significant relationship with static balance; while being negatively related to dynamic balance (P≤0.05). Furthermore, we observed a significant and negative relationship between the muscle strength of ankle dorsiflexion and dynamic balance and risk of falling (P≤0.05). There was also a positive and significant relationship between the range of motion hip extension, knee flexion, plantar flexion, and ankle dorsiflexion and static balance, while indicating a negative and significant relationship between these variables and dynamic balance and risk of falling (P≤0.05). Conclusion: The muscle strength hip abduction, hip extensions, hamstring, quadriceps, plantar flexion, ankle dorsiflexion and range of motion hip extension, knee flexion, ankle plantar flexion, and dorsiflexion seem to affect balance maintenance and fall risk in the elderly.

Non-linear growth trends of toe flexor muscle strength among children, adolescents, and young adults: a cross-sectional study

2018 ◽  
Vol 118 (5) ◽  
pp. 1003-1010 ◽  
Author(s):  
Noriteru Morita ◽  
Junichiro Yamauchi ◽  
Ryosuke Fukuoka ◽  
Toshiyuki Kurihara ◽  
Mitsuo Otsuka ◽  
...  
Keyword(s):  
Young Adults ◽  
Muscle Strength ◽  
Linear Growth ◽  
Cross Sectional Study ◽  
Adolescents And Young Adults ◽  
Sectional Study ◽  
Flexor Muscle ◽  
Cross Sectional ◽  
Growth Trends ◽  
Non Linear

A Study of Intrinsic Factors in Patients with Stress Fractures of the Tibia

1996 ◽  
Vol 17 (8) ◽  
pp. 477-482 ◽  
Author(s):  
Ingrid Ekenman ◽  
Li Tsai-Felländer ◽  
Pär Westblad ◽  
Ibrahim Turan ◽  
Christer Rolf
Keyword(s):  
Range Of Motion ◽  
Stress Fracture ◽  
Reference Group ◽  
Intrinsic Factor ◽  
Gait Pattern ◽  
Stress Fractures ◽  
Muscle Performance ◽  
Plantar Flexor ◽  
Flexor Muscle ◽  
Intrinsic Factors

We aimed to study intrinsic factors in 29 consecutive patients with well-documented unilateral stress fractures of the tibia. Anthropometry, range of motion, isokinetic plantar flexor muscle performance, and gait pattern were analyzed. The uninjured leg served as the control. A reference group of 30 uninjured subjects was compared regarding gait pattern. Anterior stress fractures of the tibia (N = 10) were localized in the push-off/ landing leg in 9/10 athletes, but were similarly distributed between legs in posteromedial injuries (N = 19). Ten (30%) of the stress fracture subjects had bilateral high foot arches, similar to those found in the reference group. There were no other systematic differences in anthropometry, range of motion, gait pattern, or isokinetic plantar flexor muscle peak torque and endurance between injured and uninjured legs. No other differences were found between anterior and posteromedial stress fractures. We conclude that anterior stress fractures of the tibia occur mainly in the push-off/landing leg in athletes. Within the limitations of our protocol, no registered intrinsic factor was found to be directly associated with the occurrence of a stress fracture of the tibia.

scholarly journals Passive Ankle Stiffness in Subjects With Diabetes and Peripheral Neuropathy Versus an Age-Matched Comparison Group

2000 ◽  
Vol 80 (4) ◽  
pp. 352-362 ◽  
Author(s):  
Gretchen B Salsich ◽  
Michael J Mueller ◽  
Shirley A Sahrmann
Keyword(s):  
Peripheral Neuropathy ◽  
Range Of Motion ◽  
Comparison Group ◽  
Plantar Flexor ◽  
Initial Angle ◽  
Flexor Muscle ◽  
Ankle Stiffness ◽  
Torque Curve ◽  
Muscle Excursion ◽  
Matched Comparison

Abstract Background and Purpose. Patients with diabetes mellitus and peripheral neuropathy (DM and PN) often complain of joint stiffness. Although stiffness may contribute to some of the impairments and functional limitations found in these patients, it has not been quantified in this population. The purpose of this study was to quantify and compare passive ankle stiffness and dorsiflexion (DF) range of motion in subjects with DM and PN versus an age-matched comparison group. Subjects. Thirty-four subjects were tested (17 subjects with DM and PN and 17 subjects in an age-matched comparison group). There were 10 male subjects and 7 female subjects in each group. Methods. A Kin-Com dynamometer was used to measure passive plantar flexor torque as each subject's ankle was moved from plantar flexion into dorsiflexion at 60°/s. The following variables were compared using a Student t test: initial angle (angle of onset of plantar flexor torque), maximal dorsiflexion angle, plantar flexor muscle excursion (difference between initial angle and maximal dorsiflexion angle), slope of the first half of the plantar flexor torque curve (stiffness 1 measurement), and slope of the second half of the plantar flexor torque curve (stiffness 2 measurement). Results. The subjects with DM and PN group had smaller maximal dorsiflexion angles and less plantar flexor muscle excursion than the comparison group. There was no difference in initial angle, stiffness 1 measurement, or stiffness 2 measurement. Conclusion and Discussion. Although the subjects with DM and PN had less dorsiflexion range of motion than did the comparison group, there was no difference in stiffness between the groups. This finding suggests that people with DM and PN have “short” versus “stiff” plantar flexor muscles.

Does clinically measured ankle plantar flexor muscle strength or weakness correlate with walking performance in healthy individuals?

2018 ◽  
Vol 31 (6) ◽  
pp. 1201-1209
Author(s):  
N. Ekin Akalan ◽  
Shavkat Kuchimov ◽  
Adnan Apti ◽  
Yener Temelli ◽  
Merve Ören ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Plantar Flexor ◽  
Healthy Individuals ◽  
Flexor Muscle ◽  
Walking Performance

scholarly journals Calf-raise senior: a new test for assessment of plantar flexor muscle strength in older adults: protocol, validity, and reliability

2016 ◽  
Vol Volume 11 ◽  
pp. 1661-1674 ◽  
Author(s):  
Helô André ◽  
Filomena Carnide ◽  
Edgar Borja ◽  
Fátima Ramalho ◽  
Rita Santos-Rocha ◽  
...  
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Plantar Flexor ◽  
Validity And Reliability ◽  
Flexor Muscle

scholarly journals Association ankle function and balance in community-dwelling older adults

PLoS ONE ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. e0247885
Author(s):  
David Hernández-Guillén ◽  
Catalina Tolsada-Velasco ◽  
Sergio Roig-Casasús ◽  
Elena Costa-Moreno ◽  
Irene Borja-de-Fuentes ◽  
...  
Keyword(s):  
Older Adults ◽  
Muscle Strength ◽  
Dynamic Balance ◽  
Weight Bearing ◽  
Community Dwelling ◽  
Plantar Flexor ◽  
Flexor Muscle ◽  
Ankle Mobility ◽  
Ankle Function ◽  
Community Dwelling Older Adults

Background and purpose Ankle function declines with age. The objective of this study was to investigate the association between ankle function and balance in older adults, with a focus on range of motion (ROM) and strength. Methods This was a cross-sectional study that included 88 healthy community-dwelling older adults. Ankle mobility was measured while bearing weight (lunge test) and not bearing weight. The plantar-flexor muscle strength was assessed using a hand-held dynamometer. Balance was measured in terms of dynamic balance and mobility (timed up and go test), monopodal and bipodal static balance with open and closed eyes (single-leg stand test and platform measures), and margins of stability (functional reach test). Linear correlation and multiple regression analyses were conducted with a 95% CI. Results and discussion Most participants had limited ankle mobility (n = 75, 86%). Weight-bearing ankle dorsiflexion ROM was the strongest predictor of dynamic balance and included general mobility and stability (Radj2 = [0.34]; β = [-0.50]). In contrast, plantar-flexor muscle strength was a significant predictor of static standing balance with open eyes (Radj2 = [0.16–0.2]; β = [0.29–0.34]). Overall, weight-bearing ankle dorsiflexion ROM was a more representative measure of balance and functional performance; however, a non-weight-bearing mobility assessment provides complementary information. Therefore, both measures can be used in clinical practice. Conclusion This study supports the concept that ankle mobility contributes to the performance of dynamic tasks, while the plantar-flexor muscle strength helps to develop a standing static balance. Identification of alterations in ankle function is warranted and may assist in the design of tailored interventions. These interventions can be used in isolation or to augment conventional balance training in order to improve balance performance in community-dwelling older adults.

scholarly journals Effect of Electroacupuncture versus Sham Electroacupuncture in Patients with Knee Osteoarthritis: A Pilot Randomized Controlled Trial

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Qi Wang ◽  
Hui Lv ◽  
Zhao-Tian Sun ◽  
Jian-Feng Tu ◽  
Yong-Wei Feng ◽  
...  
Keyword(s):  
Randomized Controlled Trial ◽  
Muscle Strength ◽  
Knee Osteoarthritis ◽  
Range Of Motion ◽  
Controlled Trial ◽  
Dropout Rate ◽  
Flexor Muscle ◽  
Randomized Controlled ◽  
Significant Difference ◽  
Pilot Randomized Controlled Trial

Objective. To explore the feasibility of evaluating the effectiveness and safety of electroacupuncture versus sham electroacupuncture for patients with knee osteoarthritis (KOA). Method. A pilot randomized controlled trial was conducted at a teaching hospital in Beijing. A total of 30 patients with KOA (Kellgren grade II or III) were randomly allocated to an eight-week treatment of either electroacupuncture or sham electroacupuncture. Patients and outcome assessors were blinded to group allocation. The primary outcome was the proportion of responders achieving at least 1.14 seconds decrease in the Timed Up and Go Test (TUG) at week eight compared with baseline. The secondary outcomes included the knee range of motion, the knee extensor and flexor muscle strength, Lequesne index, 9-step stair-climb test (9-SCT), and TUG. Results. Of 30 patients allocated to two groups, 27 (90%) completed the study. The proportion of responders was 53.3% (8 of 15) for electroacupuncture group and 26.7% (4 of 15) for sham electroacupuncture group by the intention-to-treat analysis (P=0.264). There was no statistically significant difference in TUG between the two groups at eight weeks (P=0.856). The compliance rate measured according to patients who conformed to the protocol and had received treatments ≥20 times was 93.3% (28 of 30). The dropout rate was 20% (3 of 15). Adverse effects were not reported in the study. Conclusion. Our research demonstrated that further evaluation of the effectiveness of electroacupuncture versus sham electroacupuncture was feasible and safe for patients with KOA. Whether or not the electroacupuncture can improve the physical functions of knee joint, expand the knee range of motion, and increase the extensor and flexor muscle strength more significantly than sham electroacupuncture, future studies can be designed with larger sample size, randomization design and less biases. This trial is registered with NCT03366363.

scholarly journals Effectiveness of Warm-Up Routine on the Ankle Injuries Prevention in Young Female Basketball Players: A Randomized Controlled Trial

Medicina ◽  
2019 ◽  
Vol 55 (10) ◽  
pp. 690
Author(s):  
Elvira Padua ◽  
Agata Grazia D’Amico ◽  
Anas Alashram ◽  
Francesca Campoli ◽  
Cristian Romagnoli ◽  
...  
Keyword(s):  
Range Of Motion ◽  
Center Of Pressure ◽  
Young Female ◽  
Ankle Dorsiflexion ◽  
Core Stability ◽  
Ankle Injuries ◽  
Control Group ◽  
Basketball Players ◽  
Warm Up ◽  
Experimental Group

Background and Objectives: Ankle joint is the most common site of injury for basketball athletes. An effective warm-up (WU) is a period of preparatory exercise to improve training performance and reduce sports injuries. Continuous examination of effective WU routines in basketball players is a necessity. The aim of this study was to investigate the effects of general and combined warm up on ankle injury range of motion (ROM) and balance in young female basketball players. Materials and Methods: A sample of 28 young female basketball players were randomly allocated to either global warm up control group (GWU) (n = 11) or combined warm up experimental group (CWU) (n = 17). All participants performed 7-min of run. The CWU group performed a single leg stance barefoot with eyes closed, plank forearm position and triceps sural stretching. Participants in GWU performed walking ball handling and core stability using a Swiss ball. Both WU routines were conducted 3 times per week for 10 weeks. Outcome measurements were the Stabilometric platform and dorsiflexion lunge test. Results: Twenty-eight young female basketball players completed the study. Participants in the experimental group improved significantly in the range of motion (ROM) in right and left ankle and the center of pressure displacement (CoP). The control group did not show any changes in ankle dorsiflexion and a significant reduction in all body balance parameters. Conclusions: An 8-min combined warm-up routine for 10 weeks improves the ankle dorsiflexion ROM and CoP displacement that plays a key role in ankle injuries prevention in basketball players. Further studies are strongly needed to verify our findings.

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