Medicine and Health Sciences Commons^™

The Effect Of Menstruation Duration On The Achilles Tendon Cross-Sectional Area In Female Ballet Dancers, Kaitong Li, Wayne Johnson, Steven Allen, Shayla Bott, Chris Dillon, Joshua Sponbeck, Camille Nguyen Jones, Annie Smedley

International Journal of Exercise Science: Conference Proceedings

Females are more likely to suffer Achilles tendon injury that consequently leads to more complications including pain or tendon rupture, and experiencing fewer benefits from therapeutic interventions. There is a lack of knowledge on how estrogen, which may limit collagen synthesis, can affect tendon health and growth. PURPOSE: The objective of this study is to examine the relationship between menstruation duration and cross-sectional area (CSA) of the Achilles tendon over a 5-month period of intensive dance training. We hypothesize the female dancers who reported a menstruation duration of 1-3 days will have the smallest average tendon CSA in comparison …

Efektivitas Manual Therapy Dan Ultrasound Terhadap Peningkatan Fungsi Gerak Bahu Pada Kasus Nyeri Bahu Et Causa Bursitis Subacromialis Dengan Parameter Spadi Di Rsud Muhammad Natsir, Fadhilah Az-Zahra, Ronal Lufitos, Faizah Abdullah Djawas

Jurnal Fisioterapi Terapan Indonesia or Indonesian Journal of Applied Physiotherapy

ABSTRACT: Adhesive Capsulitis is a disorder that occurs in the shoulder area in the form of inflammation of the joint capsule which causes a feeling of stiffness and pain. Glenohumeral joint mobilization with the Maitland mobilization technique is using passive mobilization with physiological oscillatory movements which can produce a stretching effect and release of adhesive on the ligament capsule in the shoulder so that the range of motion of the shoulder joint can be increased. Hold relax is an exercise therapy with the principle of reciprocal inhibition which aims to improve antagonistic pattern relaxation, and mobilization, and to reduce pain. …

Peripheral Heating With Negative Pressure Increases Arterial Blood Flow, Brigitte Fuller, Matthew Fahey, Kevin Paul Eusoof, Paige Straus, Michael Buono Facsm, Jeff Moore

International Journal of Exercise Science: Conference Proceedings

Over half (53%) of adults in the United States have some form of diabetes. Traditional treatments have been inadequate in stopping this epidemic suggesting the need for novel therapies. Peripheral heating with negative pressure has previously been shown to reduce blood glucose. The mechanisms behind this effect are unknown but may be related to changes in blood flow to the treated extremity. PURPOSE: To examine changes in flow rate (time averaged mean velocity (TAMV)), vessel cross-sectional area (CSA), and blood flow in the popliteal artery before and during peripheral heating with negative pressure applied to the feet. METHODS: …

The Relationship Between Acute Exercise-Induced Changes In Extramuscular Connective Tissue Thickness And Delayed Onset Muscle Soreness In Healthy Participants: A Randomized Controlled Crossover Trial, Sarah Tenberg, Kazunori Nosaka, Jan Wilke

Research outputs 2022 to 2026

Background The extramuscular connective tissue (ECT) has been shown to play a significant role in mechanical force transmission between musculoskeletal structures. Due to this and owing to its tight connection with the underlying muscle, the ECT may be vulnerable to excessive loading. The present study aimed to investigate the effect of eccentric elbow flexor exercise on the morphology of the biceps brachii ECT. In view of the high nociceptive capacity of the ECT, an additional objective was to elucidate the potential relationship between ECT damage and the occurrence of delayed onset muscle soreness (DOMS). Methods Eleven healthy participants (♂ = …

Single Running Bout Achilles Tendon Stiffness Adaptations In Elite Male Runners With Various Foot Strike Patterns, Joshua Sponbeck, Iain Hunter, Luke Brogan, Zachary Ludwig, Collette Batty, Wayne Johnson

International Journal of Exercise Science: Conference Proceedings

PURPOSE: Midfoot strike runners experience greater amounts of force through the Achilles Tendon while running compared with heel strike runners which may increase the risk of Achilles tendinopathy. The purpose of this study is to examine the effect of a five-mile running bout, on Achilles tendon stiffness as measured by elastography in elite male runners that exhibit a midfoot or heel strike pattern. METHODS: Ten male runners (age = 21.4 years, height = 179.54 cm, weight = 66.2 kg, average miles run over the last 6 weeks = 6) participated in this study. Runners free from injury and running …

Peaking For Maximal Strength: Muscular Adaptations And Performance Outcomes, Spencer K. Travis

Electronic Theses and Dissertations

The purposes of this dissertation were to 1) determine what tapering and peaking practices appear to be most effective via systematic review, 2) to identify the tapering and peaking practices used by North American powerlifters, 3) to experimentally compare muscular adaptations and performance changes following two different training cessation periods, and 4) to experimentally compare the two most common taper models following a training program aimed at peaking maximal strength. Based on the scientific literature, a step and exponential taper appeared to be the most effective tapering models used when volume-load is reduced by half over 2±1 week. Interestingly, North …

Achilles Tendon Rupture – Young Adult Female Volleyball Player, Katie M. Botterbusch, Lisa A. Vicencio, Abigail G. Seamans, Andreas Stamatis Dr.

International Journal of Exercise Science: Conference Proceedings

CASE HISTORY: A 25-year-old professional volleyball player, who was playing in a game in Iceland, was transitioning off the net back-pedaling and pivoting as she felt something pop in her right calf. Initially, the athlete denied having any pain but was unable to plantarflex her foot or weight bear. At the time of injury, she was taking Sertraline (HCL 50 mg), Trazodone (50 mg), Wellbutrin XL (Bupropion HCL) 150 mg, Adderall (5mg) and birth control. PHYSICAL EXAM: The athlete was evaluated at an emergency room, where a Thompson squeeze test was performed and determined positive for an acute Achilles tendon …

Manual Versus Semi-Automated Detection Of Muscle Fascicle Pennation Angle Of The Vastus Lateralis, Natalie Walker, Jesus Hernandez-Sarabia, Carlos Estrada, Jocarlo Shields, Rob Maclennan, Jason Defreitas, Scott Crawford, Micheal Luera

International Journal of Exercise Science: Conference Proceedings

Muscle pennation angle (PA) is a key characteristic in muscle function. However, current methodologies are tedious, time consuming, and usually only include a few representative fascicles for the PA measures. Leveraging image processing methods could improve the efficiency of PA measurements while still providing valuable insight into architectural changes during specific tasks. PURPOSE: To compare manual (MAN) versus semi-automated (SA) analyses for muscle PA within the vastus lateralis (VL) utilizing ultrasound images taken during isometric knee extensions at different intensities relative to maximum volitional effort. METHODS: Sixteen lower-body resistance trained males (n =7, mean ± SD; 21±7 yrs; 77.7 ± …

The Acute Effects Of Citrulline Malate And Bonded Arginine Silicate Supplementation On Vasodilation Of Young Adults, Jeffrey Rogers

Health, Human Performance and Recreation Undergraduate Honors Theses

Abstract

Background

Clinicians, professional athletes, and recreational athletes are interested in supplementation that up-regulates nitric oxide (NO) production in blood vessel endothelium, increasing arterial vasodilation. Benefits from these supplements include improvements in blood pressure, muscle hyperemia, and exercise performance. Citrulline Malate (CM) is a pre-workout ingredient, popular for its ability to increase exercise performance and blood serum concentrations of L-arginine, resulting in NO production. Recently, Inositol-Stabilized Arginine Silicate (ASI, Nitrosigine) has been added to many of the most popular pre-workout blends, following a group of studies showing ASI increases serum arginine and reduces post-workout muscle damage. Research has yet to …

Assessing The Validity And Reliability Of A Freehand Tool Method For Analysis Of Ultrasound Cross-Sectional Area Images, Donald J. Marsh, Dylan Suarez, Luis Rodriguez-Castellano, Kyle Rochau, Ai Ishida, Caleb D. Bazyler

ETSU Faculty Works

No abstract provided.

Fascicle Arrangement In College-Aged Athletes, Jacob Goodin

Electronic Theses and Dissertations

Purpose: To compare muscle architecture variables between sport and sex in competitive athletes, and to compare muscle architecture with performance variables in strong versus weak athletes, and good versus poor jumpers. Methods: The vastus lateralis (VL) and lateral gastrocnemius (LG) muscles of 139 collegiate athletes were collected using ultrasonography to determine muscle thickness (MT), pennation angle (PA), fascicle length (FL), and relative fascicle length (FL_rel). Absolute and relative peak power, absolute and relative isometric peak force, and jump height were measured in a subset of baseball and soccer athletes. A 5x2 factorial analysis of variance (ANOVA) was used …

Fascicle Arrangement In College-Aged Athletes, Jacob Goodin

Jacob Goodin

The Effects Of Static Stretching On Pennation Angle And Muscle Power Production In The Triceps Surae Complex, Lacey G. Dennis

Honors College Theses

Many studies have examined how power is affected by static stretching. However, little research has been completed to examine why the muscle power production is affected by static stretching. The purpose of this study is to see the correlation of how pennation angle (PA) and muscle power production (MPP) is affected by a static stretching protocol. For the methodology, PA of the medial and lateral gastrocnemius muscle will be measured using Terason ultrasound machine. After the PA is measured participants will perform a vertical jump on a force plate while utilizing a Vertec, to determine the height of their jump …

The Relationships Between Hip And Knee Extensor Cross-Sectional Area, Strength, Power, And Potentiation Characteristics, Timothy J. Suchomel, Michael H. Stone

ETSU Faculty Works

The purpose of this study was to examine the relationships between muscle cross-sectional area (CSA), maximal strength, power output, and maximum potentiation characteristics. The vastus lateralis and biceps femoris CSA, one repetition maximum (1RM) back squat, 1RM concentric-only half-squat (COHS) strength, static jump power output, and maximum potentiation characteristics of 17 resistance-trained men was assessed during several testing sessions. Pearson’s correlation coefficients were used to examine the relationships between CSA, strength, power output, and maximum potentiation measures. Moderate-to-strong relationships existed between CSA and strength measures (r = 0.462–0.643) as well as power output (r = 0.396–0.683). In addition, moderate-to-strong relationships …

The Effects Of Flexor Pronator Mass Fatigue On Medial Elbow Stability, Nathaniel Harvey Millard

Theses, Dissertations and Capstones

Introduction: The medial elbow is supported from valgus loading with the ulnar collateral ligament (UCL), the flexor pronator mass (FPM), and the radial head. Fatigue of muscle can lead to a decrease in force production. The decrease in force production can lead to a decrease in joint stability. This study tested the effect of fatigue of the FPM muscles on the width of the medial joint space.

Methods: Thirty-one participants volunteered for this study (18 female and 12 male, 1 excluded; mean height 170.2±10.1 cm, mean weight 71.2±15.6 kg, mean age 21.53±1.87 years old). Ultrasound images of the width of …

An Ultrasonographic Analysis Of The Structures Of The Subacromial Space, As They Relate To The Postures Of Upper String Musicians, Elliot V. Smithson

Theses, Dissertations and Capstones

Background: The leading source of general population shoulder pain is subacromial impingement syndrome (SAIS) which can contribute to rotator cuff disease (RCD). 1 It has been reported that up to 12% of musicians end their musical career due to musculoskeletal injury.2 SAIS is a common source of shoulder pain in the bowing arm of upper string musicians.3 However, the mechanisms leading to shoulder pain in upper string musicians are not well known.

Purpose: The purpose of this study was to characterize aspects of the subacromial space anatomy while in standard playing positions of upper string musicians, specifically measurements …

Relationships Between Lower-Body Muscle Structure And, Lower-Body Strength, Explosiveness And Eccentric Leg Stiffness In Adolescent Athletes, Josh Secomb, Sophia Nimphius, Oliver R. Farley, Lina Lundgren, Tai T. Tran, Jeremy M. Sheppard

Research outputs 2014 to 2021

The purpose of the present study was to determine whether any relationships were present between lower-body muscle structure and, lower-body strength, variables measured during a counter-movement jump (CMJ) and squat jump (SJ), and eccentric leg stiffness, in adolescent athletes. Thirty junior male (n = 23) and female (n = 7) surfing athletes (14.8 ± 1.7 y; 1.63 ± 0.09 m; 54.8 ± 12.1 kg) undertook lower-body muscle structure assessment with ultrasonography and performed a; CMJ, SJ and an isomet-ric mid-thigh pull (IMTP). In addition, eccentric leg stiffness was calculated from variables of the CMJ and IMTP. Moderate to very large …

Influence Of Tendon Tears On Ultrasound Echo Intensity In Response To Loading, Kayt E. Frisch, David Marcu, Geoffrey S. Baer, Darryl G. Thelen, Ray Vanderby

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

Acoustoelastic (AE) ultrasound image analysis is a promising non-invasive approach that uses load-dependent echo intensity changes to characterize stiffness of tendinous tissue. The purpose of this study was to investigate whether AE can detect localized changes in tendon stiffness due to partial and full-thickness tendon tears. Ovine infraspinatus tendons with different levels of damage (Intact, 33%, 66% and full thickness cuts initiated on the articular and bursal sides) were cyclically loaded in a mechanical testing system while cine ultrasound images were recorded. The load-induced changes in echo intensity on the bursal and articular side of the tendon were determined. Consistent …

Short Term Sensory And Vascular Responses To Physical Agent Modalities And Exercise In Healthy Volunteers And Patients With Distal Radius Fracture., Shaguftha Shaik

Electronic Thesis and Dissertation Repository

Currently, there is weak evidence on the effectiveness of different rehabilitation regimens following distal radius fracture (DRF). This thesis evaluated sensory and vascular effects of exercise, thermal and ultrasound interventions that can be used in the mobilization phase (cast removal) after DRF.

Methods

• This thesis includes 3 studies. The first study compared responses to Immersion in Cold water Evaluation (ICE) in the DRF and uninjured hands. Skin blood flow (Sbf), skin temperature (temp.) and sensory perception thresholds (sPT) at 2000Hz for A –beta fibres and at 5 Hz for C fibres were obtained before, immediately after ICE and 10 min …

Ultrasound Echo Is Related To Stress And Strain In Tendon, Sarah Duenwald, Hirohito Kobayashi, Kayt E. Frisch, Roderic Lakes, Ray Vanderby Jr.

Faculty Publications - Biomedical, Mechanical, and Civil Engineering

The mechanical behavior of tendons has been well studied in vitro. A noninvasive method to acquire mechanical data would be highly beneficial. Elastography has been a promising method of gathering in vivo tissue mechanical behavior, but it has inherent limitations. This study presents acoustoelasticity as an alternative ultrasound-based method of measuring tendon stress and strain by reporting a relationship between ultrasonic echo intensity (B-mode ultrasound image brightness) and mechanical behavior of tendon in vitro. Porcine digital flexor tendons were cyclically loaded in a mechanical testing system while an ultrasonic echo response was recorded. We report that echo intensity …