Medicine and Health Sciences Commons^™

High-Intensity Interval Training And Biological Age, Trevor Lohman

Loma Linda University Electronic Theses, Dissertations & Projects

The emergence of valid predictors of biological age has enabled researchers to test the effects of various interventions on biological aging processes. The established virtues of exercise and its effects on health and longevity make it a suitable candidate for investigation. This dissertation reviews the current state of biological age prediction models and presents a trial in which a specific exercise protocol’s ability to modulate biological age is tested. The specific protocol used is a 10X1 high-intensity interval training (HIIT) protocol, 10X1 referring to the quantity and duration of high intensity exercise intervals in each exercise session. The specific biological …

The Impact Of Intraneural Facilitation Therapy On Diabetic Peripheral Neuropathy, Kyan Zhra-Sahba Alnajafi

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Intraneural facilitation (INF) has shown clinical success, and significant improvements have been found in a recent pilot study. This study aims to investigate further these effects on DMT2 subjects suffering from DPN. Objective: The purpose of this study is to explore the effects of INF on subjects suffering from DPN impacting blood flow, sensation, balance, gait, pain, and quality of life.

Methods: Twenty-eight subjects between 50-75 years old with T2DM and below ankle moderate-severe DPN, were randomly assigned into two groups (N=17 INF, N=11 sham). All blinded subjects went through 9 therapy visits, and blinded assessing …

The Influence Of Strength And Mobility On Lumbar Biomechanics During Lifting, Christopher S. Patterson

Loma Linda University Electronic Theses, Dissertations & Projects

Weakness of the lumbar and hip extensors muscles as well as limited hip flexion mobility have been proposed to contribute to greater lumbar spine loading and greater lumbar flexion during functional tasks. The purpose of the current study was to examine the associations among hip and lumbar spine extension strength, hip flexion mobility and lumbar spine biomechanics during a squat lifting task. Fifty healthy adults participated in the study. Strength of the lumbar extensors and hip extensors was measured using a motor driven dynamometer. Hip range of motion was assessed using a 3D motion capture system. Participants lifted boxes of …

Effect Of Pediatric Ear Infections On Postural Stability, Ohud A. Sabir

Loma Linda University Electronic Theses, Dissertations & Projects

Ear infections in children often cause abnormal postural stability during the acute phase of the ear infection. However, the long-term effects of recurrent ear infections on postural stability have not been investigated. Postural stability is the foundation of many motor skills in early child development. Therefore, it is important to evaluate and treat postural instability problems in early childhood. The purpose of this study was to examine the effect of multiple ear infections on pediatric postural stability and visual over-reliance and to determine if computerized and non-computerized measurement tools could identify lasting postural instability in children with multiple ear infections …

Spine Kinematics And Muscle Activities In Non-Specific Chronic Low Back Pain Subgroups In Sitting, Mansoor Ahmed Alameri

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Although, non-specific chronic low back pain (NSCLBP) has been associated with motor control impairments, little is known about the possible driving mechanisms of pain development overtime during prolonged sitting period. Therefore, the purpose of this study was to examine the differences in lumbosacral postures and muscle activities in adults with and without NSCLBP, and their role on pain development during a 1-hour of prolonged sitting task.

Methods: Twenty NSCLBP subjects with motor control impairment (MCI) [10 classified as having flexion pattern (FP) disorder, and 10 with active extension pattern (AEP) disorder], and 10 healthy controls participated in …

Biomechanics And Postural Control Characteristics In Low Back Pain Subgroups During Dynamic Task, Amjad Shallan

Loma Linda University Electronic Theses, Dissertations & Projects

Dynamic balance impairments are commonly observed in people with low back pain (LBP). People with LBP have reduced lumbopelvic stability and may exhibit spinal biomechanical and postural control changes during dynamic balance. A limited number of studies are available about the spinal kinematic and postural control changes during dynamic balance in people with nonspecific chronic low back pain (NSCLBP) subgroups. Therefore, the aim of this dissertation was to compare spinal kinematics and postural control between NSCLBP subgroups and healthy individuals during dynamic balance using a modified Star Excursion Balance Test (mSEBT). Eighteen NSCLBP subjects [9 active extension pattern (AEP), 9 …

Does Self-Evaluation And Education In Students Change Attitudes And Beliefs Towards Weight Stigma?, Henry A. Garcia

Loma Linda University Electronic Theses, Dissertations & Projects

The current state of global ensures physical therapists will encounter patients that are overweight/obese in all clinical settings, which makes them exceptionally positioned to promote lifestyle modifications to their patients. Unfortunately, weight stigma is highly prevalent among health care providers. Weight stigma has been shown to have adverse effects on patients. The purpose of this study is to measure weight bias in the doctor of physical therapy (DPT) students. Elicit change in obesity stigma in DPT students by way of self-evaluation while enrolled in a course Aspects of Health Promotion (AHP). Methods: Sixty students enrolled in AHP course participated in …

Effects Of Head Motion On Balance In Middle-Aged And Young Adults With Chronic Motion Sensitivity, Ammar E. Hafiz

Loma Linda University Electronic Theses, Dissertations & Projects

Chronic motion sensitivity (CMS) often leads to a variety of symptoms including postural instability. There is limited research describing the effects of active head motion on standing postural stability in adults with motion sensitivity. Previous research has described the negative effects of chronic motion sensitivity on postural stability during active head motion. The purpose of this study was to compare the effects of slow and fast head motions, in multiple planes, on postural stability in healthy middle-aged adults with and without CMS. Secondary objective was to compare the effects of head motion on postural stability between young and middle-aged adults, …

Relationship Between Balance And Physical Activity In Subjects With Non-Specific Chronic Low Back Pain, Muhsen B. Alsufiany

Loma Linda University Electronic Theses, Dissertations & Projects

Most research on sedentary lifestyle has focused on pain and disability outcomes, while neuromuscular outcomes (postural control and strength) have received less attention. The objective of the present study was to determine whether low level of physical activity is negatively associated with measures of lower body muscular strength and postural control in subjects with and without non-specific chronic low back pain (NSCLBP). Twenty-four subjects with NSCLBP (28.8±5.9 years) and 24 age, gender, and Body Mass Index (BMI) matched healthy controls participated in the study. Subjects were sub-classified into four subgroups based on their level of physical activity using the International …

Effect Of Adding Stretching Techniques To Standardized Intervention On Nonspecific Mechanical Neck Pain, Saad S. Alfawaz

Loma Linda University Electronic Theses, Dissertations & Projects

Mechanical neck pain is becoming one of the leading causes of musculoskeletal disorders in the general adult population. Mobilization intervention is considered one of the most effective therapeutic techniques to treat non-specific neck pain. The purpose of this study was to investigate the benefit of adding stretching exercises as part of a rehabilitation program for patients with non-specific mechanical neck pain. Methods: Thirty-eight subjects with non-specific neck pain for at least 2 weeks with mean± SD age 30.9±8.1 years and body mass index (BMI) 26.8±6.7 kg/m2 participated in the study. Participants were randomly assigned to either the combined intervention (passive …

A Comparison Of Neuromuscular Control Between Subjects With And Without Chronic Ankle Instability, Hatem Jaber

Loma Linda University Electronic Theses, Dissertations & Projects

Ankle sprains are common and potentially disabling musculoskeletal injuries occur among physically active individuals. A subsequent problem that is commonly encountered by clinicians due to ankle sprains is the development of ongoing instability. The presence of ankle instability has been linked to impairments in postural and neuromuscular control; however, inconsistent findings have been reported. These discrepancies deem the need to further investigate and provide additional knowledge regarding postural and neuromuscular control strategies utilized by this population. This may enhance the current understanding of chronic ankle instability (CAI) and help to understand how rehabilitation can be customized to specifically target and …

The Effects Of Wearing Headscarves On Cervical Spine Proprioception And Range Of Motion, Samiah Alqabbani

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Wearing the headscarf is a part of an essential religious practice by females in Islamic cultures. Regular wear of the headscarf might have an influence on cervical proprioception and range of motion (ROM). The cervical spine is unique in providing multidirectional movement as well as providing the sense of awareness of movement of the head and neck in space. Impairments in cervical mobility and proprioception have been reported in subjects with whiplash-associated disorder as well as subjects having neck pain. Objectives: 1) To determine the effects of wearing the headscarf on cervical spine ROM and joint position error …

The Effects Of Frequent Smartphone Use On Children’S Upper Posture And Pulmonary Function, Asma Alonazi

Loma Linda University Electronic Theses, Dissertations & Projects

Children are experiencing an increase in sedentary lifestyle as a result of the rising utilization of technology, i.e. smartphones. With the prolonged use of smartphones, increased concerns have been raised regarding constant neck flexion, neck movements limitation, and decreases in pulmonary function due to potential changes in spinal posture. Therefore, the purpose of this research thesis was to evaluate changes in craniovertebral angles (CVA), cervical range of motion (ROM), and pulmonary function among boys and girls 8 to 13 years of age who use smartphones. A cross-sectional study was conducted on a sample of 50 participants (24 boys and 26 …

Effects Of Head Motion On Postural Stability In Participants With Chronic Motion Sensitivity, Abdulaziz A. Albalwi

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Motion sensitivity, or motion sickness, is common among individuals in modern vehicular and visually stimulating environments; notably, people with normal vestibular function are susceptible to this condition. Motion-provoked dizziness often causes postural instability. Purposes: This study aimed to compare the effects of head motion on postural stability in healthy adults with and without chronic motion sensitivity (CMS) and to determine the effects of head motion direction (horizontal versus vertical) on postural stability. Methods: Sixty healthy adult males and females aged 20 to 40 years old were assigned to two groups, 30 participants with CMS and 30 participants without CMS. …

Relationship Between Vestibular System, Vision, Anxiety, And Chronic Motion Sensitivity, Ahmad A. Alharbi

Loma Linda University Electronic Theses, Dissertations & Projects

BACKGROUND: Chronic motion sensitivity (CMS) has been defined as a feeling of un-wellness elicited by either actual or perceived motion. CMS is a common condition and is more prevalent in females than in males. In addition to a variety of symptoms, young adults with CMS have less postural stability than those without CMS. OBJECTIVE: To determine whether vestibular system integrity, dependence on visual cues for postural stability, and the anxiety level are different between young adults with and without CMS, and whether it differs by gender within each group. METHODS: Sixty young adults (30 females and 30 males) were assigned …

Effect Of Heavy Lifting With A Head Strap On The Pelvic Floor Across The Menstrual Cycle, Yvonne Biswokarma

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Pelvic organ prolapse (POP) occurs in 10% of women in Nepal, even 6% of nulliparous women have symptomatic POP.1 This may be linked to the heavy lifting tasks performed by women using a head strap.2 This study explored the impact of hormonal changes on the pelvic floor when performing these tasks during each phase of the menstrual cycle. Methods: The study included 22 female Nepali participants with a mean age of 27.4(3.6) years; all were from rural villages and frequently carried with a head strap. Using intravaginal pressure transducers (IVT), the mean change in intraabdominal pressure (IAP) was found …

Effects Of Adjustments To Wheelchair Seat To Back Support Angle On Head, Neck, And Shoulder Postures, Afnan M. Alkhateeb

Loma Linda University Electronic Theses, Dissertations & Projects

Background: People spend a long time in the sitting position may have poor alignment that leads to neck and back pain. A wheelchair represents mobility for people with cerebral palsy, who are unable to walk. They spend long periods of time sitting in their wheelchair. Opining the seat to back support angle of the wheelchair enable realignment body segments and improves posture. Objective: 1) assessed the validity/reliability of Coach’s Eye (CE) smart device application, 2) examined the effect of seat to back support angle adjustments on head, neck, and shoulder posture in the sitting position, and 3) compared changes in …

Clinical Assessment Of Pragmatics (Caps): A Validation Study, Adriana Lavi

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was bi-fold: to develop and analyze the validity and reliability of a comprehensive pragmatic language diagnostic tool, the Clinical Assessment of Pragmatics as well as comparatively examine and analyze pragmatic language profiles of three groups of adolescents. These included students with Language Impairment (LI), High-Functioning Autism (HFA) and typically developing students. During the validation phase of the study, thirty participants, ages 14 to 16 years old, were administered 3 pragmatic judgment and 3 pragmatic performance subtests comprised of 10 items each for a total of 60 test items. A series of validity and reliability measures …

Effect Of Jet Lag On Postural Stability, Faisal M. Al Mubarak

Loma Linda University Electronic Theses, Dissertations & Projects

Postural stability is essential in people’s daily life. Crossing time zones can disrupt our body clock and lead to jet lag. Some studies reported that jet lag affects human physical and cognitive functions. To the best of the authors’ knowledge, none of these studies examined the effects of jet lag on postural stability. Twenty-two healthy young adult males between 23 and 36 years of age who had a round trip flight planned between the United States and Saudi Arabia were recruited. Participants attended one preflight assessment and three post-flight assessments (within 24 hours, 48 hours, 72 hours). Participants were divided …

Effect Of Vestibular Adaptation Exercises On Chronic Motion Sensitivity, Danah Alyahya

Loma Linda University Electronic Theses, Dissertations & Projects

Dizziness is one of the most common complaints reported to primary care physicians. It is often associated with vestibular dysfunction and typically impacts postural stability. Motion sickness, or motion sensitivity, is stimulated by abnormal spatial orientation and is a common symptom related to dizziness and postural instability. The main cause of the motion sensitivity is aberrant sensory input from the visual, vestibular and somatosensory systems. The aim of this study was to measure the effect of vestibular adaptation exercises on postural stability in young healthy adults with subjective awareness of chronic motion sensitivity.

Methods: Fifty healthy male and female …

Physical Therapy After Triangular Fibrocartilage Injuries And Ulnar Wrist Pain, Mohamed A. Abdelmegeed

Loma Linda University Electronic Theses, Dissertations & Projects

Background: The ulnar side of the wrist has been referred to as the “black box” of the wrist because of its complex structures and sophisticated anatomy, disorders at this anatomical site have been compared to those of low back pain

Purposes: The purpose of this study was to apply the Brief International Classification of Functioning (ICF) Core Set for Hand Conditions to the physical therapy outcome measures, and to evaluate the contribution of these measures to overall health in subjects with ulnar wrist pain. A secondary purpose was to investigate the effect of wrist orthotics and strengthening exercise on …

Cross-Cultural Adaption And Psychometric Properties Testing Of The Arabic Anterior Knee Pain Scale, Abdullah S. Alshehri

Loma Linda University Electronic Theses, Dissertations & Projects

Patellofemoral pain syndrome (PFP) is a common condition affecting the musculoskeletal system and has a tendency of becoming chronic and is problematic in the affected people. It is the commonest cause of anterior knee pain. In over 2/3 of the patients affected it has been successfully treated through the use of rehabilitation protocols which are designed in pain reduction and returning the functionality to an individual. Many cases of patellofemoral pain syndrome can be avoided only if a clinician can make a pre-diagnosis. Preparation Screening Evaluation testing done by a certified athletic trainer can also help in prevention of this …

The Effects Of A Novel Therapeutic Intervention In Diabetic Peripheral Neuropathy Patients, Adel M. Alshahrani

Loma Linda University Electronic Theses, Dissertations & Projects

Diabetes mellitus (DM) is a common disorder affecting individuals in the United States and in the world. The prevalence of DM has increased noticeably over the last three decades with an estimated 380 million people currently diagnosed with this disease. DM is associated with numerous systemic complications that affect the retina, heart, brain, kidneys, and nerves. The most common complication of DM is diabetic peripheral neuropathy. Diabetic peripheral neuropathy causes reduced sensation, reflexes, proprioception, and strength in lower limbs that leads to balance problems. Various manual therapy techniques have not approached a pilot study for the efficacy of a manual …

Effect Of Tactile Feedback On Reducing Body Sway In Elderly, Faris Shuleih Alshammari

Loma Linda University Electronic Theses, Dissertations & Projects

Context: Body sway increases in the elderly due to normal aging and a high incidence of disease such as diabetes. Increased body sway is associated with an elevated risk of falling. Falling is one of the major causes of morbidity and mortality in the elderly. Objectives: The purpose of this study was to examine the effect of 6 minutes training of tactile feedback (novel intervention) compared to visual feedback on body sway in the elderly with or without diabetes to develop a new technique for balance training. Design: A single blinded randomized controlled trial. Setting: Loma Linda University, Loma Linda, …

The Effect Of Cervical Muscle Fatigue On Postural Stability During Immersion Virtual Reality, Mazen M. Alqahtani

Loma Linda University Electronic Theses, Dissertations & Projects

The visual system is part of the nervous system that enables an individual to scan their environment and assess distance to and from objects. The information captured form our navigating environment is communicated to the brain, which in turn makes the decision on how we respond to spatial orientation. This is particularly useful in helping with balance and determining direction of movement. Our posture and visual stability rely heavily on an efficient and processing of visual, vestibular, and proprioception afferent input. Erroneous sensory information from defective sensory organs may cause a person to experience feelings of lightheadedness, spinning and whirling …

Effect Of Tai Chi Exercise Combined With Mental Imagery In Improving Balance, Abdulrahman Alsubiheen

Loma Linda University Electronic Theses, Dissertations & Projects

Background: One of the effects of diabetes mellitus (DM), peripheral neuropathy, affects feet sensation and can increase the chance of falling. The purpose of the study was to investigate the effect of 8 weeks of Tai Chi (TC) training combined with mental imagery (MI) on improving balance in people with diabetes and an age matched control group. Methods: Seventeen healthy subjects and 12 diabetic sedentary subjects ranging from 50-80 years of age were recruited. All subjects in both groups attended a Yang style of TC class, two sessions per week for 8 weeks. Each session was one hour long. Measures …

Muscle Dynamics As The Result Of Whole Body Vibration And Plyometrics, Richard Jeremy Hubbard

Loma Linda University Electronic Theses, Dissertations & Projects

BACKGROUND: Whole body (WBV) vibration and plyometrics are common training techniques which increase strength, blood flow, force and power. The effects these techniques have on sedentary population is unknown. It is our aim to assess the effectiveness of WBV and plyometrics on sedentary population. SUBJECTS: Three groups of nine sedentary subjects were assigned to either the control group (C), jumping only group (J), or jumping with vibration group (JV). METHODS AND PROCEDURES: Measurements included: jump height (Myotest or Vertec), velocity, force, blood lactates, gastrocnemius and quadriceps strength, and exertion (RPE). Subjects were measured at the first, seventh, and eighteenth visits. …

Effect Of 17Β Estradiol & Foot Strike Patterns On Physiological & Biomechanical Changes In Runners, Iman Akef Khowailed

Loma Linda University Electronic Theses, Dissertations & Projects

It is well established that female runners are at a significantly increased risk of incurring injuries when compared to their male counterparts. Gender-specific factors such as anatomical, hormonal, and altered neuromuscular activation patterns have been implicated as causative factors. An association have been observed between hormonal fluctuation and ACL injury risk indicating potentially hormonal effect on both passive and dynamic knee stabilizer.

A growing contingency believes that we were designed with all we need in our feet to be able to run with minimal shoes that mimic barefoot running striking pattern. Habitual barefoot runners tend to FFS, compared to habitually …

Effect Of Monophasic Pulsed Current On The Treatment Of Plantar Fasciitis, Abdullah Alotaibi

Loma Linda University Electronic Theses, Dissertations & Projects

Background: Plantar fasciitis (PF) is one of the most common soft tissue disorders that causes inferior heel and rear foot pain. Monophasic pulsed current (MPC) is a method of electrical stimulation (ES) clinically used to promote and accelerate wound healing processes. The aim of this prospective clinical trial was to investigate the effect of MPC and MPC coupled with plantar fascia specific stretching exercises (SE) in the treatment of PF. Methods: Forty four participants (twenty- two subjects were women; 22 were men with a mean age of 49 ± 10.6 years) diagnosed with PF were randomly allocated to receive MPC …

Screening For Torticollis And Plagiocephaly: The Role Of The Pediatrician, Lisa Ann Change-Yee Hwang

Loma Linda University Electronic Theses, Dissertations & Projects

The purpose of this study was to examine the effects of providing a standardized screening examination to a group of attending and resident physicians on the rate of torticollis and plagiocephaly diagnoses, the age at time of diagnosis, and the attitudes and practice patterns of the physicians. All subjects were given a standardized screening procedure by verbal instruction and handout, and also completed a pre-­‐ and post-­‐intervention questionnaire, which assessed the 􀂕􀂗􀂄􀂌􀂇􀂅􀂖􀂕􀇯􀀃 practice regarding the diagnosis and management of torticollis and plagiocephaly. A retrospective chart review was conducted to ascertain the changes in frequency and mean age of patients diagnosed …