scholarly journals NORMATIVE ISOMETRIC HIP MUSCLE FORCE VALUES ASSESSED BY A MANUAL DYNAMOMETER

2019 ◽  
Vol 27 (2) ◽  
pp. 124-128 ◽  
Author(s):  
Glauber Alvarenga ◽  
Henry Dan Kiyomoto ◽  
Emília Cardoso Martinez ◽  
Giancarlo Polesello ◽  
Vera Lúcia dos Santos Alves
Keyword(s):  
Body Weight ◽  
Muscle Force ◽  
Isometric Force ◽  
Return To Sports ◽  
Level Of Evidence ◽  
Hip Muscle ◽  
Extensor Muscles ◽  
Muscle Groups ◽  
The Impact ◽  
External Rotator

ABSTRACT Objective: Hand-held dynamometry is a quantitative and accessible means of determining the isometric force of muscle groups. Methods: A total of 52 women aged 20–29 years with no complaints of hip pain who were sedentary or sporadically active and had a body mass index of 18.5–24.99 kg/m2 were included. All participants underwent bilateral assessments using hand-held dynamometry of the flexor, extensor, adductor, and abductor muscles as well as the internal and external rotator hip muscles. All hip movements were measured. All contraction data collected by the dynamometer are expressed in kilograms, normalized according to body weight, and expressed as percentages. Results: The flexor muscles exhibited an isometric muscle force of 38.54% of body weight versus a muscle force of 27.04% for the extensor muscles, 16.89% for the adductors, 16.85% for the abductors, and 17.09% for the external rotators, and 23.82% for the internal rotators. Conclusion: Standardization of isometric strength values according to body weight proved feasible. This result is important for clinical practice since it allows the establishment of patterns of normality and criteria for discharge, return to sports, or assessment of the impact of injuries in terms of loss of muscle strength. Level of evidence: III, Development of diagnostic criteria on consecutive patients (with universally applied reference “gold” standard).

Relationship between Shoulder Pain and Selected Variables in Patients with Hemiplegia

1988 ◽  
Vol 2 (2) ◽  
pp. 111-117 ◽  
Author(s):  
Richard W Bohannon
Keyword(s):  
Body Weight ◽  
Shoulder Pain ◽  
External Rotation ◽  
Adhesive Capsulitis ◽  
Independent Variables ◽  
Extensor Muscles ◽  
Shoulder External Rotation ◽  
Muscle Groups ◽  
The Relationship ◽  
External Rotator

This investigation was performed to clarify the relationship between six independent variable categories and shoulder pain (SP) in hemiplegia. In this study, 30 hemiplegic patients served as subjects. The Ritchie articular index was used to measure SP. The independent variables were age, body weight, time since onset of stroke, shoulder subluxation, range of shoulder external rotation, and plegic shoulder muscle group strength. Subluxation was judged by palpation. Range of shoulder external rotation was measured goniometrically. Strength of the shoulder internal and external rotator, abductor and extensor muscles was measured with a hand-held dynamometer and normalized against body weight. A strength balance ratio of the shoulder was also determined (external rotators + abductors/internal rotators + extensors). Variables were measured on admission and prior to discharge. Spearman correlations or chi-squares were determined between the initial and final measurements of the independent variables and SP. More than 80% of the patients had SP. Correlated significantly with SP at both assessments and across time were range of shoulder external rotation (−.574 to −.797), and strength of the shoulder external rotator (−.523 to −.583) and abductor (−.375 to −.519) muscles. Correlated significantly at one or more of the assessments were body weight, time since onset and the strength of the other muscle groups (including the strength ratio). Shoulder subluxation was not correlated with SP. Patients with greater weakness may be more prone to the development of pain because their muscles lack adequate strength to move the joint enough to prevent the development of adhesive capsulitis.

scholarly journals Fear of Reinjury in Athletes

2016 ◽  
Vol 9 (2) ◽  
pp. 162-167 ◽  
Author(s):  
Chao-Jung Hsu ◽  
Adam Meierbachtol ◽  
Steven Z. George ◽  
Terese L. Chmielewski
Keyword(s):  
Return To Sport ◽  
Sports Injury ◽  
Self Report ◽  
Return To Sports ◽  
Psychological Consequences ◽  
Level Of Evidence ◽  
Physical Impairments ◽  
Rehabilitation Outcomes ◽  
Practice Approach ◽  
The Impact

Context: A sports injury has both physical and psychological consequences for the athlete. A common postinjury psychological response is elevated fear of reinjury. Objective: To provide an overview of the implications of fear of reinjury on the rehabilitation of athletes, including clinical methods to measure fear of reinjury; the impact of fear of reinjury on rehabilitation outcomes, including physical impairments, function, and return to sports rate; and potential interventions to address fear of reinjury during rehabilitation. Evidence Acquisition: PubMed was searched for articles published in the past 16 years (1990-2016) relating to fear of reinjury in athletes. The reference lists of the retrieved articles were searched for additionally relevant articles. Study Design: Clinical review. Level of Evidence: Level 3. Results: Fear of reinjury after a sports injury can negatively affect the recovery of physical impairments, reduce self-report function, and prevent a successful return to sport. Athletes with high fear of reinjury might benefit from a psychologically informed practice approach to improve rehabilitation outcomes. The application of psychologically informed practice would be to measure fear of reinjury in the injured athletes and provide interventions to reduce fear of reinjury to optimize rehabilitation outcomes. Conclusion: Fear of reinjury after a sports injury can lead to poor rehabilitation outcomes. Incorporating principles of psychologically informed practice into sports injury rehabilitation could improve rehabilitation outcomes for athletes with high fear of reinjury.

scholarly journals EFFECTS OF A MULTICOMPONENT EXERCISE PROGRAM ON THE FUNCTIONAL FITNESS IN ELDERLY WOMEN

2018 ◽  
Vol 24 (1) ◽  
pp. 36-39 ◽  
Author(s):  
Frank Shiguemitsu Suzuki ◽  
Alexandre Lopes Evangelista ◽  
Cauê Vazquez La Scala Teixeira ◽  
Marcos Rodolfo Ramos Paunksnis ◽  
Roberta Luksevicius Rica ◽  
...  
Keyword(s):  
Body Weight ◽  
Latin American ◽  
Elderly Women ◽  
Exercise Program ◽  
Lower Limbs ◽  
Functional Fitness ◽  
Trained Group ◽  
Level Of Evidence ◽  
Functional Autonomy ◽  
The Impact

ABSTRACT Introduction: Aging is inevitable and irreversible, but with the advancement of technology, life expectancy is increasing every year, bringing proposals for various interventions to improve the quality of life. One such intervention is physical exercise programs. Objectives: To investigate the impact of multicomponent training in circuits on functional autonomy parameters in elderly women. Methods: Elderly were recruited and distributed in two groups: trained (N = 16) and non-trained (N = 15). Those in the trained group performed 75-minute training sessions twice a week over a 56-week period. The resistance training included upper and lower limbs with a relative intensity of 70% of 1RM, exercises using body weight, stretching and specific tasks for agility, performed in a circuit form and totaling three passages. Participants underwent functional autonomy (FA) assessment by the protocol of the Latin American Developmental Group for Maturity, the 6-minute walk test (T6M), and the sit-and-reach (SR) test. Results: The trained group had a significant decrease in body weight (p=0.02) and body mass index (p=0.015). Significant improvements (p=0,009) were also observed in FA, SR, and T6M after the intervention Compared with the untrained group, the trained group also obtained significant differences in all functional parameters analyzed. Conclusion: A long-term multicomponent training program conducted on a circuit and applied twice a week was enough to improve multiple components of the functional autonomy of elderly women. Level of Evidence II; Prognostic studies - Investigating the effect of a patient characteristic on the outcome of disease.

scholarly journals FORCE-VELOCITY RELATIONSHIP OF LEG EXTENSORS OBTAINED FROM THREE DIFFERENT TYPES OF LOAD

2018 ◽  
Vol 15 (3) ◽  
pp. 467
Author(s):  
Marko Ćosić ◽  
Saša Đurić ◽  
Milena Živković ◽  
Aleksandar Nedeljković
Keyword(s):  
Concurrent Validity ◽  
Isometric Force ◽  
Maximal Velocity ◽  
Muscle System ◽  
Different Types ◽  
Force Velocity ◽  
Muscle Groups ◽  
Leg Extensors ◽  
Relationship Of ◽  
The Impact

The first aim of this study was to evaluate the shape of force-velocity (F-V) relationships in case of gravitational (W), inertial (I) and combined (W+I) type of load assessed from squat jump (SJ) performed on a modified Smith machine. The second aim was to determine whether there were differences between the same parameters (maximal force, F0; maximal velocity, V0; maximal power, P0) obtained from linear F-V relationship among three different loads. The third aim was to evaluate the concurrent validity of the parameters F0 obtained from different types of load in SJ, with maximum isometric force in squat (Fiso), as well as one repetition maximum in squat (1RM). Fifteen male participants were tested in SJ with three different types of load, squat for obtaining 1RM and isometric squat for obtaining the Fiso. The observed F-V relationships were exceptionally strong and approximately linear (median r ≥ 0.98) independently of used load. The differences between same parameters of different types of load were determined in parameters F0 and V0, while there were no differences between P0. Regarding third aim, concurrent validity for F0 showed to be moderate to high and significant in all 3 types of load (r ≥ 0.56), except between F0 and Fiso in W type of load, where it was non-significant (r ≥ 0.47). The significance of the study reflects in better understanding of the mechanisms of the functioning of muscle system in case of different types of load. Future studies should investigate the impact of different types of load to kinetic and kinematic parameters in case of different motoric tasks and muscle groups.

scholarly journals Expediency of change of exercises at power training

2021 ◽  
pp. 16-19
Author(s):  
O.A. Volodchenko ◽  
V.B. Khudiakova ◽  
Yu.O. Volodchenko
Keyword(s):  
Body Weight ◽  
Muscle Mass ◽  
Control Group ◽  
Fat Percentage ◽  
Elastic Band ◽  
Thigh Circumference ◽  
Second Stage ◽  
Muscle Groups ◽  
The Impact ◽  
Experimental Group

The article considers the impact of changing training aids during weight training in the gym, without changing the amount of load and intensity. The study involved twenty-eight visitors to the gyms of the city of Kharkov, from 18 to 32 years and experience of one year. The study was conducted in two stages, the duration of each was 2 months. The control group was engaged without changing the exercises, and the experimental group with changing the exercises in the second stage. The volume and intensity of the load did not differ between the groups. Results. Anthropometric indicators were studied at the beginning and end of the second stage of the study. The equipment used Tanita RD 545 scales, an application for the My tanita mobile device, and an elastic band for measuring circles. The experimental group improved their results in the following indicators: body weight, fat percentage, muscle mass, shoulder circumference, chest and thigh circumference. At the end of the study, the experimental group surpassed the control group as a result of the following indicators: body weight, fat percentage, and muscle mass. The results of the circles of the muscle groups at the end of the study did not differ between the groups. Conclusions. Changing such factors of training influence as exercises has a positive effect on the result of fitness training in the gym. Despite the invariability of the amount of load and its intensity, the change in exercises led the participants of the experimental group to a significant improvement in performance, both in comparison with the beginning of the study and in comparison with the control group.

scholarly journals The Effect of an Isometric Hip Muscle Strength Training Protocol on Valgus Angle During a Drop Vertical Jump in Competitive Female Volleyball Players

2017 ◽  
Vol 5 (4) ◽  
pp. 1 ◽  
Author(s):  
Kaitlin M. Jackson ◽  
Tyson A. C. Beach ◽  
David M. Andrews
Keyword(s):  
Muscle Strength ◽  
Injury Risk ◽  
Acl Injury ◽  
Group Level ◽  
Hip Muscle ◽  
Peak Knee ◽  
Volleyball Players ◽  
Acl Injury Risk ◽  
Muscle Groups ◽  
External Rotator

Background: Hip muscle weakness is associated with higher peak knee valgus angles (VA) during drop vertical jumps (DVJ) and linked to ACL injury risk. Objective: To determine if isometric strengthening (IST) of the hip extensor, abductor, and external rotator muscle groups would reduce VA exhibited during a DVJ. Methodology:  Fourteen female volleyball players (7 training (TG), 7 control (CG), VA≥9˚ during DVJ) participated. Pre- and post-test gluteal, quadriceps and hamstring strength were measured with a digital force gauge. Three-dimensional kinematics were collected during 15 DVJ trials. TG participated in a 6-week IST program that targeted the hip extensor, abductor, and external rotator muscle groups. Two-way mixed ANOVAs compared mean differences of VA and strength. Single-participant analyses examined if athlete-specific adaptations went undetected in the analyses of aggregated data. Results: TG hip extension, abduction, and knee flexion strength increased, respectively, by 20.5%, 27.5% and 23.5% (P<0.05). No group-level changes in VA were detected. Unilateral VA decreased for 5 TG participants, and bilateral VA decreased in 2 TG participants. Conclusions: IST increased isometric hip muscle strength, but its effect on VA is inconclusive based on group-level analyses. Using single-participant designs, future studies should assess IST and/or dynamic resistance/neuromuscular training in a larger sample to determine its effect on ACL injury risk factors.

Movement Analysis of Philippine Folk Dance Tinikling

2019 ◽  
Vol 2 (1) ◽  
pp. 30-34
Author(s):  
Sanchez Jorielle C ◽  
Manlutac Crisalyn T ◽  
Salas Joven V ◽  
Soriano Marilou R ◽  
Santos Michael E ◽  
...  
Keyword(s):  
Movement Analysis ◽  
Adductor Muscle ◽  
Mechanical Analysis ◽  
The Philippines ◽  
Folk Dance ◽  
Dance Movement ◽  
Cardiovascular Endurance ◽  
Hip Muscle ◽  
Health Related ◽  
Muscle Groups

The purpose of the study was to describe the dance movements of the folk dance Tinikling which is the most popular traditional dance and former national dance of the Philippines.  The researchers adopted the movement analysis method similar to that of Mackenzie that involves the (1) description of the actual movements which occur at the joints involved; (2) the plane in which the movement occurs; and (3) the muscles producing the movement (agonist & antagonist). In addition, the researchers also had done a mechanical analysis on the lever type involved in the execution of the dance movement in terms of force, axis, and resistance. The prominent dance steps in the Philippine local dance Tinikling are the (1) running, (2) tinikling steps, (3) diagonal step, and (4) straddle jump with a turn step. The joints involved are: hip muscle which is ball and socket type of joint; and knee and ankle which are hinge joints. The major muscles involved in the dance include mostly the lower body muscle groups such as the quadriceps, hamstring, gluts, adductor muscle group, and calves. The type of lever used in performing the dance comprise majority of 1st, 2nd and 3rd class levers. Thus, the Tinikling is a viable dance which could improve the health related fitness of the performers in terms of muscular strength, muscular endurance, cardiovascular endurance and flexibility. Also, the dance could improve skill-related fitness such as power, agility, balance and coordination.

scholarly journals Is Hip Muscle Strength Associated with Dynamic Knee Valgus in a Healthy Adult Population? A Systematic Review

2021 ◽  
Vol 18 (14) ◽  
pp. 7669
Author(s):  
Ali Mohammed Alzahrani ◽  
Msaad Alzhrani ◽  
Saeed Nasser Alshahrani ◽  
Wael Alghamdi ◽  
Mazen Alqahtani ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Adult Population ◽  
Knee Valgus ◽  
Journal Articles ◽  
Hip Muscle ◽  
Hip Abductor ◽  
Hip Muscles ◽  
Analysis System ◽  
The Relationship ◽  
External Rotator

This study aimed to systematically review research investigating the association between hip muscle strength and dynamic knee valgus (DKV). Four databases (MEDLINE, PubMed, CINAHL, and SPORTDiscus) were searched for journal articles published from inception to October 2020. Seven studies investigating the association between hip muscle strength and DKV using a two-dimensional motion analysis system in healthy adults were included. The relationship between hip abductor muscle strength and DKV was negatively correlated in two studies, positively correlated in two studies, and not correlated in three studies. The DKV was associated with reduced hip extensor muscle strength in two studies and reduced hip external rotator muscle strength in two studies, while no correlation was found in three and five studies for each muscle group, respectively. The relationship between hip muscle strength, including abductors, extensors, and external rotators and DKV is conflicting. Considering the current literature limitations and variable methodological approaches used among studies, the clinical relevance of such findings should be interpreted cautiously. Therefore, future studies are recommended to measure the eccentric strength of hip muscles, resembling muscular movement during landing. Furthermore, high-demand and sufficiently challenging functional tasks revealing lower limb kinematic differences, such as cutting and jumping tasks, are recommended for measuring the DKV.

scholarly journals Body Mass, Physical Activity and Eating Habits Changes during the First COVID-19 Pandemic Lockdown in Poland

2021 ◽  
Vol 18 (11) ◽  
pp. 5682
Author(s):  
Hubert Dobrowolski ◽  
Dariusz Włodarek
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
Body Mass ◽  
Social Life ◽  
Eating Habits ◽  
High Energy ◽  
High Energy Density ◽  
Average Weight ◽  
Study Participants ◽  
The Impact

The outbreak of the COVID-19 pandemic caused a number of changes in social life around the world. In response to the growing number of infections, some countries have introduced restrictions that may have resulted in the change of the lifestyle. The aim of our study was to investigate the impact of the lockdown on body weight, physical activity and some eating habits of the society. The survey involving 183 people was conducted using a proprietary questionnaire. The mean age of the study participants was 33 ± 11 and mean height 169 ± 8 cm. An average increase in body weight was observed in 49.18% by 0.63 ± 3.7 kg which was the result of a decrease in physical activity and an increase in food consumption. We also observed a decrease in PAL from 1.64 ± 0.15 to 1.58 ± 0.13 and changes in the amount of food and individual groups of products consumption, including alcohol. Among the study participants who did not lose body mass, there was an average weight gain of 2.25 ± 2.5 kg. In conclusion, an increase of weight was shown in about half of the respondents in the study group which was associated with a decrease in physical activity and an increase in the consumption of total food and high energy density products.

scholarly journals Patients with complex proximal tibial fractures overestimate the prognosis of their injury

2021 ◽  
Author(s):  
Lena Keppler ◽  
Alexander Martin Keppler ◽  
Christoph Ihle ◽  
Philipp Minzlaff ◽  
Julian Fürmetz ◽  
...  
Keyword(s):  
Return To Work ◽  
Tibial Fracture ◽  
Knee Function ◽  
Physical Work ◽  
Return To Sports ◽  
Work Intensity ◽  
Proximal Tibial Fracture ◽  
Level Of Evidence ◽  
Patient Comprehension ◽  
Group B

Abstract Purpose To investigate, if patients with complex proximal tibial fracture have realistic expectations on open reduction and internal fixation. Methods 114 patients (mean 49 years, SD ± 13) with closed AO-type B and C proximal tibial fracture were grouped (group B, respectively C). Prior to surgery expectations concerning knee function, pain, return to work/sports, and the risk for osteoarthritis was assessed with the Hospital for Special Surgery-Knee Surgery Expectations Survey (HFSS-KSE) and a non-validated ten-item survey. Results 92% of patients expected at least an almost natural knee postoperatively. All items regarding restoring knee function were ranked to be at least important in both groups. 65% in group B and 47% in group C expected at most occasional pain. 83% in group B and 67% in group C expected full return to work without any limitations. Patients with low physical work intensity expected significantly shorter incapacity to work in both groups (7.8, respectively 8.9 weeks). 71% in group B and 60% in group C expected to return to sports with at most small limitations. 33% in group B and 22% in group C assumed risk for osteoarthritis will be prevented by surgery. Conclusion Expectations on surgery for complex proximal tibial fracture are high regardless of fracture type. The prognosis of many health and lifestyle domains was overestimated. The risk for osteoarthritis was underestimated. This study should sensitize surgeons to discuss realistic expectations. This may help to improve patient comprehension what leads to sensible expectations, resulting in improved patients´ satisfaction. Level of evidence IV. Trial registration number 14104, Date of registration: 06/2015.

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