Contribution of a Muscle Fatigue Protocol to a Dynamic Stability Screening Test for Exertional Medial Tibial Pain

Context: Glenohumeral external rotation (GH ER) muscle fatigue might contribute to shoulder injuries in overhead athletes. Few researchers have examined the effect of such fatigue on scapular kinematics and muscle activation during a functional movement pattern. Objective: To examine the effects of GH ER muscle fatigue on upper trapezius, lower trapezius, serratus anterior, and infraspinatus muscle activation and to examine scapular kinematics during a diagonal movement task in overhead athletes. Setting: Human performance research laboratory. Design: Descriptive laboratory study. Patients or Other Participants: Our study included 25 overhead athletes (15 men, 10 women; age = 20 ± 2 years, height = 180 ± 11 cm, mass = 80 ± 11 kg) without a history of shoulder pain on the dominant side. Intervention(s): We tested the healthy, dominant shoulder through a diagonal movement task before and after a fatiguing exercise involving low-resistance, high-repetition, prone GH ER from 0° to 75° with the shoulder in 90° of abduction. Main Outcome Measure(s): Surface electromyography was used to measure muscle activity for the upper trapezius, lower trapezius, serratus anterior, and infraspinatus. An electromyographic motion analysis system was used to assess 3-dimensional scapular kinematics. Repeated-measures analyses of variance (phase × condition) were used to test for differences. Results: We found a decrease in ascending-phase and descending-phase lower trapezius activity (F1,25 = 5.098, P = .03) and an increase in descending-phase infraspinatus activity (F1,25 = 5.534, P = .03) after the fatigue protocol. We also found an increase in scapular upward rotation (F1,24 = 3.7, P = .04) postfatigue. Conclusions: The GH ER muscle fatigue protocol used in this study caused decreased lower trapezius and increased infraspinatus activation concurrent with increased scapular upward rotation range of motion during the functional task. This highlights the interdependence of scapular and glenohumeral force couples. Fatigue-induced alterations in the lower trapezius might predispose the infraspinatus to injury through chronically increased activation.

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The effect of Soft Tissue Manipulation and Rest on Knee Extensor Muscles Fatigue: Do torque Parameters and Induced Perception Following Muscle Fatigue Have Enough Reliability?

10.21203/rs.2.11322/v1 ◽

2019 ◽

Author(s):

Cobra Ghasemi ◽

Ali Amiri ◽

Javad Sarrafzadeh ◽

Hasan Jafari ◽

Mehdi Dadgoo

Keyword(s):

Soft Tissue ◽

Muscle Fatigue ◽

Visual Analog Scale ◽

Average Power ◽

Knee Extensor ◽

Peak Torque ◽

Analog Scale ◽

Fatigue Protocol ◽

Tissue Manipulation ◽

The Stability

Abstract Background The aim of the study is comparison of the effects of soft tissue manipulation and rest on the knee extensor muscle fatigue after maximal isokinetic contractions. Methods Fifteen healthy females aged 20-30 years selected for research. This study implemented a semi-experimental test-retest measurement method. Each of the volunteers was evaluated three sessions. The first session was to familiarize the volunteers with the test and isokinetics. For the main test, each of the volunteers was evaluated twice with a one-week interval between evaluations. In each session, after warm-up, perceived fatigue using a visual analog scale (VAS), average of peak torque (APT), and average power (AP) for maximal concentric isokinetic output of the quadriceps was measured at a velocity of 60 degrees per second. Then¸ in order to apply the fatigue protocol, the subjects were asked to perform successive maximal quadriceps contractions until three consecutive quadriceps torque outputs reached below 50 percent maximal torque output. Afterwards, for remeasurement, the average of peak torque and average power were calculated. The extent of perceived fatigue was evaluated as before. Subjects then either rested or received soft tissue manipulation on the knee extensors for a 15-minute duration. After intervention (soft tissue manipulation or rest) parameters were evaluated for third time. Results The stability of average peak torque¸ average power, and visual analog scale before performing fatigue protocol was 85%, 83%, and 31.9%, respectively. The stability after fatigue was 43%, 50%, and 93%, respectively. After maximal fatigue and a decrease in torque output to below 50 percent maximal torque, 15 minutes of soft tissue manipulation could change the APT after fatigue from a mean of 58.3 (nm) to 91.5 (nm), the AP from 39.4 to 63.6 (nm/s), and the VAS from 90.0 to 12 (mm). But 15 minutes of rest could change the APT from 52.5 to 68.1 (nm), the AP from 37.6 to 48 (nm/s) and the VAS from 90.0 to 27.3 (mm). Conclusion The study showed that soft tissue manipulation was more effective than rest as a strategy to return muscles to a normal state and caused more relief in perceived fatigue.

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The Relationship Between Dynamic Stability and Functional Movement Screening Test

Physical Treatments - Specific Physical Therapy ◽

10.32598/ptj.8.2.107 ◽

2018 ◽

pp. 107-114

Author(s):

Mostafa Zarei ◽

Niloufar Rahmani

Keyword(s):

Dynamic Stability ◽

Screening Test ◽

Functional Movement ◽

Movement Screening ◽

The Relationship ◽

Functional Movement Screening

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Ultrasonographic and Myotonometric Evaluation of the Shoulder Girdle After an Isokinetic Muscle Fatigue Protocol

Journal of Sport Rehabilitation ◽

10.1123/jsr.2019-0117 ◽

2020 ◽

Vol 29 (8) ◽

pp. 1047-1052 ◽

Cited By ~ 3

Author(s):

Sebastian Klich ◽

Bogdan Pietraszewski ◽

Matteo Zago ◽

Manuela Galli ◽

Nicola Lovecchio ◽

...

Keyword(s):

Muscle Fatigue ◽

Case Series ◽

Shoulder Girdle ◽

Supraspinatus Tendon ◽

Pectoralis Major ◽

Fatigue Protocol ◽

Upper Trapezius ◽

Stiffness Reduction ◽

Case Series Study ◽

Tendon Thickness

Objectives: The aim of the study was to investigate supraspinatus tendon thickness, acromiohumeral distance (AHD), and stiffness/creep measures of the shoulder girdle in overhead asymptomatic athletes in muscle fatigue conditions. Design: Observational, case series study. Setting: Biomechanics and motion analysis lab. Participants: Twenty-four male overhead volleyball (n = 8), handball (n = 8), and tennis (n = 8) athletes. All subjects were without shoulder injury history. Main Outcome Measure: The subjects were tested for supraspinatus tendon thickness (in short and long axis), AHD using ultrasound scans and stiffness/creep of upper trapezius, infraspinatus, anterior and posterior deltoid, and pectoralis major using the myotonometer device before and immediately after a fatigue protocol. Intervention: The fatigue protocol consisted of 3 sets of 32 maximum isokinetic concentric contractions performing shoulder internal and external rotation at isokinetic speed of 120°/s. Results: A significant increase in supraspinatus tendon thickness (both in short and long axis) (P = .045 and P = .01, respectively) and a reduction in AHD (P = .01) were found after an isokinetic protocol. The stiffness increased significantly in upper trapezius (P ≤ .01), infraspinatus (P = .003), posterior deltoid (P = .047), and pectoralis major (P = .01), whereas the creep showed a significant decrement for upper trapezius (P = .001) and infraspinatus (P = .003). Conclusion: The present study has demonstrated the postexercise fatigue in overhead athletes. The increase of stiffness (reduction of muscle creep) and tendon thickness (simultaneous to the reduction of AHD) may indicate rotator cuff overloading as a primary intrinsic tendon pathology process.

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Impact of resistance training on muscle fatigue in type 2 diabetes mellitus patients during dynamic fatigue protocol

Physiotherapy Theory and Practice ◽

10.1080/09593985.2021.2001882 ◽

2021 ◽

pp. 1-13

Author(s):

Pooja Bhati ◽

M. Ejaz Hussain

Keyword(s):

Diabetes Mellitus ◽

Type 2 Diabetes ◽

Type 2 Diabetes Mellitus ◽

Resistance Training ◽

Muscle Fatigue ◽

Fatigue Protocol ◽

Dynamic Fatigue

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Effect of Trunk-Muscle Fatigue and Lactic Acid Accumulation on Balance in Healthy Subjects

Journal of Sport Rehabilitation ◽

10.1123/jsr.17.4.380 ◽

2008 ◽

Vol 17 (4) ◽

pp. 380-386 ◽

Cited By ~ 10

Author(s):

Ozgur Surenkok ◽

Ayse Kin-Isler ◽

Aydan Aytar ◽

Zuhal Gültekin

Keyword(s):

Lactic Acid ◽

Muscle Fatigue ◽

Dynamic Balance ◽

Peak Torque ◽

Trunk Muscle ◽

Trunk Flexion ◽

Fatigue Protocol ◽

Acid Accumulation ◽

Dependent Samples ◽

Flexion And Extension

Objective:This study sought to determine the effects of trunk-muscle fatigue and blood lactic acid elevation on static and dynamic balance.Intervention:Fatigue was induced by an isokinetic protocol, and static and dynamic balance were assessed during bilateral stance using a Kinesthetic Ability Trainer. Subjects participated in a fatigue protocol in which continuous concentric movements at 60°/s were performed until the torque output for both trunk flexion and extension dropped below 25% of the calculated peak torque for 3 consecutive movements.Measures:Before and immediately after the fatigue protocol, blood lactic acid measurements and static- and dynamic-balance measurements were recorded.Results:An increase in lactic acid levels was detected in all subjects. According to a dependent-samples t test, significant differences in balance and lactic acid values were found after the fatigue protocol. There was no correlation between lactic acid accumulation (change between prefatigue and postfatigue levels) and balance-score differences.Conclusion:Trunk-muscle fatigue has an adverse effect on static and dynamic balance.

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Effects of Double-Taped Kinesio Taping on Pain and Functional Performance due to Muscle Fatigue in Young Males: A Randomized Controlled Trial

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph17072364 ◽

2020 ◽

Vol 17 (7) ◽

pp. 2364

Author(s):

Haneul Lee ◽

Hyoungwon Lim

Keyword(s):

Muscle Fatigue ◽

Functional Performance ◽

Controlled Trial ◽

Vertical Jump ◽

Male Students ◽

Healthy Male ◽

Young Males ◽

Fatigue Protocol ◽

Kinesio Taping ◽

Key Factor

Kinesio taping (KT) is widely applied for pain control and rehabilitation in clinical settings. Tape tension is a key factor in the taping method. However, limited evidence exists regarding the reinforced tension effects of KT on functional performance and pain in healthy individuals. This study aimed to investigate the immediate effects of double-taped Kinesio taping (DTKT) on functional performance and pain caused by muscle fatigue after exercise. A total of 44 healthy male students (mean age, 23.3 ± 2.2 years) were randomly assigned to the following three groups: DTKT, normal-tape Kinesio taping (NTKT), and placebo. The single-hopping (SH) distance, vertical jump height (VJH), and power (VJP) were assessed at baseline. The muscle fatigue protocol was then applied to induce muscle soreness. Outcome measures including subjective pain, SH distance, VJH and VJP were evaluated immediately after the muscle fatigue protocol, and KT was then applied; the measures were then again evaluated immediately and 24 h after KT application. No significant interactions between pain and functional performance were observed (p > 0.05), and there were no significant differences in SH, VJH, and VJP among the groups (p > 0.05). Notably, the DTKT had an immediate effect on the alleviation of pain caused by muscle fatigue. The present findings indicate that DTKT is not superior to NTKT or placebo in terms of pain relief and enhancing functional performance after tape application in healthy male students.

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Effect of vibration vs non-vibration foam rolling techniques on flexibility, dynamic balance and perceived joint stability after fatigue

PeerJ ◽

10.7717/peerj.8000 ◽

2019 ◽

Vol 7 ◽

pp. e8000 ◽

Cited By ~ 2

Author(s):

Ana María de Benito ◽

Raúl Valldecabres ◽

Diego Ceca ◽

Jim Richards ◽

Joaquín Barrachina Igual ◽

...

Keyword(s):

Lumbar Spine ◽

Muscle Fatigue ◽

Repeated Measures ◽

Dynamic Balance ◽

Ankle Dorsiflexion ◽

Repeated Measures Anova ◽

Fatigue Protocol ◽

Ankle Stability ◽

Treatment Conditions ◽

Exercise Induced

Background Foam roller and vibration techniques are currently used to assist in recovery after fatigue. The main purpose of this study was to determine the effects of the use of a foam roller with and without vibration on dynamic balance, ankle dorsiflexion, hamstring and lumbar spine flexibility and perceived knee and ankle stability after an induced fatigue protocol. Methods A total of 24 healthy recreationally active participants (17 males and seven females) were recruited to a randomized cross over trial consisting of; no treatment (NT), foam roller treatment (FR) and vibration foam roller treatment (VFR). The assessments included; the Sit & Reach test, Y balance test and post-treatment perceived knee and ankle stability. Measurements were taken after a standardized warm up (baseline) and repeated following an exercise-induced muscle fatigue protocol consisting of repeated lunges until volitional fatigue. The three treatment conditions were assessed on three separate days in a randomized order. A 3 × 3 repeated measures ANOVA was used to investigate differences between the three treatments over the three time points and a one factor repeated measures ANOVA was used to determine any differences between treatments using the Global Rate of Change scale when considering perceived stability. Results FR and VFR conditions both showed a greater ankle dorsiflexion range of motion (ROM) (p < 0.001), greater posteromedial and posterolateral reach distances (p < 0.001) and a better knee and ankle perceived stability (p < 0.001) when compared to the NT condition. A trend toward significance was observed in the hamstring and lumbar spine flexibility (p = 0.074) in both treatment conditions when compared to the NT condition. However, no differences were seen between the FR and VFR conditions. Conclusions Both FR conditions seem to assist in exercise-induced muscle fatigue recovery with improvements in ROM, balance and perceived stability.

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