Rehabilitation and Therapy Commons^™

Effect Of Keyswitch Design Of Desktop And Notebook Keyboards Related To Key Stiffness And Typing Force, Marcia J. Bufton, Richard W. Marklin, Mark L. Nagurka, Guy G. Simoneau

Mechanical Engineering Faculty Research and Publications

This study aimed to compare and analyse rubber-dome desktop, spring column desktop and notebook keyboards in terms of key stiffness and fingertip typing force. The spring-column keyboard resulted in the highest mean peak contact force (0.86N), followed by the rubber dome desktop (0.68N) and the notebook (0.59N). All these differences were statistically significant. Likewise, the spring-column keyboard registered the highest fingertip typing force and the notebook keyboard the lowest. A comparison of forces showed the notebook (rubber dome) keyboard had the highest fingertip-to-peak contact force ratio (overstrike force), and the spring-column generated the least excess force (as a ratio of …

Effects Of Sprint Training On Extrarenal Potassium Regulation With Intense Exercise In Type 1 Diabetes, Alison R. Harmer, Patricia A. Ruell, Michael J. Mckenna, Donald J. Chisholm, Sandra K. Hunter, Jeanette M. Thom, Norman R. Morris, Jeff R. Flack

Exercise Science Faculty Research and Publications

Effects of sprint training on plasma K⁺ concentration ([K⁺]) regulation during intense exercise and on muscle Na⁺-K⁺-ATPase were investigated in subjects with Type 1 diabetes mellitus (T1D) under real-life conditions and in nondiabetic subjects(CON). Eight subjects with T1D and seven CON undertook 7 wk of sprint cycling training. Before training, subjects cycled to exhaustion at 130% peak O₂ uptake. After training, identical work was performed. Arterialized venous blood was drawn at rest, during exercise, and at recovery and analyzed for plasma glucose, [K⁺], Na⁺ concentration ([Na⁺]), catecholamines, …

A Retrospective, Descriptive Study Of Shoulder Outcomes In Outpatient Physical Therapy, A. Lynn Millar, Philip A. Jasheway, Wendy Eaton, Frances Christensen

Faculty Publications

Study Design: A retrospective, descriptive study of clients with shoulder dysfunction referred to physical therapy. Objectives: To (1) describe the clinical and functional outcomes of clients with shoulder dysfunction following outpatient physical therapy, and (2) to compare the outcomes by type of shoulder dysfunction. Background: Although individuals with shoulder dysfunction are commonly referred to physical therapy, few large descriptive studies regarding outcomes following physical therapy are available. Methods and Measures: Data for 878 clients (468 female, 410 male) were retrieved and analyzed. This database was developed between 1997 and 2000 and included 4 outpatient facilities from 1 healthcare system in …

Rehab Exercise Prescription Sequencing For Shoulder External Rotators, Jason Brumitt, Erik Meira

Faculty Publications - College of Physical Therapy

Overhead athletes are susceptible to shoulder injuries. One component of a complete rehabilitation program is a systematic exercise prescription for the shoulder's external rotators. An overhead athlete should be progressed from basic rehab exercise positions to dynamic, sport-specific positions prior to returning to sport.

Wound Debridement With 25 Khz Ultrasound, Margaret Mccarty Stanisic, Barbara Provo, David L. Larson, Luther C. Kloth

Physical Therapy Faculty Research and Publications

Several methods of wound debridement are described in the literature and are available to health care providers who specialize in wound management. Methods include the use of sharp surgical instruments; mechanical methods, such as whirlpool and pulsed lavage with suction; proteolytic and collagenolytic enzymes; autolysis; and sterile fly larvae (maggots). The use of surgical debridement is generally considered the most efficient method when performed by a skilled physician, who may in one session use his or her discretion to excise some viable tissue along with necrotic tissue in the wound. Sharp debridement performed in a clinical setting is a less …

Variability Of Motor Unit Discharge And Force Fluctuations Across A Range Of Muscle Forces In Older Adults, Brian L. Tracy, Katrina S. Maluf, Jennifer L. Stephenson, Sandra K. Hunter

Exercise Science Faculty Research and Publications

Variability of motor unit discharge is a likely contributor to the greater force fluctuations observed in old adults at low muscle forces. We sought to determine whether the variability of motor unit discharge rate underlies the fluctuations in force during steady contractions across a range of forces in young (n = 11) and old (n = 14) adults. The coefficient of variation (CV) for discharge rate and force were measured during a force-matching task as the first dorsal interosseous muscle performed isometric contractions. The recruitment thresholds of the 78 motor units ranged from 0.04% to 34% of maximal …

A Comparison Of Outcomes After 8 And 12 Weeks Of Pulmonary Rehabilitation, Michael Fillyaw, Kim Hasegawa, Mary Anne Riley, Burton D. Tepfer

Physical Therapy Faculty Publications

Purpose: To compare changes in functional exercise capacity, dyspnea, functional status, and depression in patients after 8 weeks (24 sessions) and 12 weeks (36 sessions) of pulmonary rehabilitation (PR). Methods: A prospective sample of 31 participants in our PR program completed outcome measures prior to and during the eighth and twelfth weeks of the program. The 6-minute walk test (6MWT) and a stairs climbing test (ST) measured functional exercise capacity. Perceived dyspnea (PD) was measured with a 6-20 scale. The Pulmonary Function Status Scale (PFSS) measured functional status, and the Cardiac Depression Scale (CDS) measured depression. Results : Statistically significant …

Isokinetic Knee Strength In Females With Fibromyalgia, Flora F. Shafiee

Loma Linda University Electronic Theses, Dissertations & Projects

Objectives: To compare knee flexors and extensors muscle strength, total work, and power between females with fibromyalgia (FM) and matched healthy controls.

Methods: This is the first study to measure knee muscle power and total work in females with FM. Thirty-one females with FM and thirty-one healthy females completed isokinetic testing of knee flexors and extensors of their dominant leg using a Cybex Norm Isokinetic Dynamometer. Two knee muscle groups (flexors and extensors) at two angular velocities (607sec and 1807sec) were tested for both groups. Both muscle groups were assessed continuously using five reciprocal concentric-concentric cycles, followed by five eccentric-eccentric …

Muscle Endurance Is Greater For Old Men Compared With Strength-Matched Young Men, Sandra K. Hunter, Ashley Critchlow, Roger M. Enoka

Exercise Science Faculty Research and Publications

The purpose was to compare the time to task failure for a sustained isometric contraction performed at a submaximal intensity with the elbow flexor muscles by young and old men who were matched for strength. Eight young men (18–31 yr) and eight old men (67–76 yr) sustained an isometric contraction at 20% of maximal voluntary contraction (MVC) torque until the target torque could no longer be achieved for at least 5 s. The maximal torque exerted at the wrist was similar for the young and old men before the fatiguing task (65.9 ± 8.0 vs. 65.4 ± 8.7 N·m; P …

The Effects Of An Analgesic (Biofreeze®) On The Motoneuron Pool Excitability Of The Soleus Muscle, Desiree R. Barth

All-Inclusive List of Electronic Theses and Dissertations

Objective: The purpose of this study was to determine the effects on the Hoffman reflex and motor response with an analgesic (Biofreeze®). Design: The study was a 2X6 design. The independent variables in this study were treatment and time. The dependent variables were the H-reflex (volts) and the M response (volts). Treatment was randomly assigned to control for the effects of order. Setting: This study took place in the Exercise Physiology Laboratory located in the Health and Human Performance Building at Indiana State University. Subjects: 14 volunteers who were physically active and had no known neurological problems. Measurements: Skin and …

Central Somatosensory Changes And Altered Muscle Synergies In Subjects With Anterior Cruciate Ligament Deficiency, Carol Courtney, Rose Marie Rine, Penny G. Kroll

Physical Therapy Faculty Research

To clarify the mechanisms of compensation in subjects with anterior cruciate ligament deficiency (ACL-D), we examined proprioception, quadriceps strength, somatosensory evoked potentials (SEPs) and muscle responses during gait in varied combinations of speed and incline. Seventeen subjects with ACL-D were grouped by functional level and report of giving way. Seven subjects without ACL-D served as a control sample for muscle response measures. ACL-D subjects with quadriceps weakness experienced giving way and could not resume sport activities. Those without weakness fell into one of two groups: (1) copers, who had full return to previous activity and no giving way despite proprioceptive …

An Electromyographic Assessment Of Lumbar Paraspinal Muscles During Core Stability Exercises, Alicia Marleina Osuna

All-Inclusive List of Electronic Theses and Dissertations

Objective: Clinicians often use Swiss balls in exercise regimens to recruit activity of the paraspinal musculature. However, we do not know if muscle activity differences exist while performing an exercise on a stable or unstable surface. Design and Settings: A 1 X 2 factorial with repeated measures design guided this study. The single within-subjects factor was a core stability exercise with 2 levels: a stable condition (chair) and an unstable condition (Thera-band® exercise ball). The dependent variables were the integrated electromyography (I-EMG) amplitude of the left and right lumbar paraspinal musculature. Subjects: Sixteen moderately active and healthy male subjects (age: …

Therapeutic Benefits Of Ultrasound Can Be Achieved And Maintained With 1 Mhz, 4 Era Ultrasound Treatment, Lori B. Meyer

All-Inclusive List of Electronic Theses and Dissertations

Context: Thermal ultrasound has been used for the past two decades because of its ability to increase underlying local tissue temperatures promoting healing. It is recommended that ultrasound treatment be performed on a 2-3 ERA area for 10 minutes. However, clinicians often need to treat larger areas using ultrasound, clinicians may add to the possible treatment sights and not rely on or purchase other machines. Research has yet to investigate if therapeutic levels can be obtained by increasing the treatment time. Objective: To investigate if increasing the duration of an ultrasound treatment with a treatment area of 4 timesthe sound …

The Importance Of Athletic Training Students Performing On-Field Evaluations, Amisha Patel

All-Inclusive List of Electronic Theses and Dissertations

Context: It is unclear the frequency with which athletic training students perform on-field evaluations. Objective: The purpose of this study is to: (1) quantify the frequency senior ATSs observe, assist, and perform on-field evaluations during their clinical rotations; and (2) assess the senior ATSs perceptions of their experiences during on-field evaluations. Design: A 28-item survey entitled Survey of Senior Level Athletic Training Students Perceptions of Quality and Quantity of On-Field Evaluations During Clinical Rotations was developed based on a comprehensive literature review. The survey was grouped as follows: 3 demographic questions, 8 Likert scale statements, 9 "check all that apply", …

Knee And Hip Angle And Moment Adaptations During Cutting Tasks In Subjects With Anterior Cruciate Ligament Deficiency Classified As Noncopers, Jeff R. Houck, Andrew Duncan, Kenneth E. De Haven

Faculty Publications - College of Physical Therapy

Study Design: Two-factor mixed-design study, with factors including group (control and noncoper) and task (sidestep, crossover, and straight).

Objectives: To compare the knee and hip joint angles and moments of control subjects and subjects with an anterior cruciate ligament (ACL) deficient knee classified as noncopers, during a sidestep, crossover, and straight-ahead task.

Background: Subjects with ACL deficiency primarily note difficulty with cutting tasks as opposed to straight-ahead tasks. Yet, previous studies have primarily focused on straight-ahead tasks.

Methods and Measures: Fifteen subjects with ACL deficiency classified as noncopers, based on the number of giving-way episodes (1) and global question of …

The Effect Of Positioning On Pelvic Floor Muscle Activity As Evaluated With Surface Electromyography In Normals, Karen R. Whitter-Brandon

Loma Linda University Electronic Theses, Dissertations & Projects

Physical therapists who treat patients with urinary incontinence commonly utilize sEMG biofeedback. Practitioners compare resting tone, maximal contraction, and muscle endurance measures before and after pelvic floor exercise instruction to determine intervention and demonstrate progress. There is little research that supports the use of biofeedback in positions other than supine. The purpose of this study was to examine the effect of positioning on pelvic floor muscle activity as measured by surface electromyography (sEMG) in supine, sitting, and standing. Subjects were healthy nulliparous and multiparous women, 23-74 years old, with no symptoms, history, diagnosis, or treatment of incontinence. Subjects were randomized …

The Effect Of Posterior Versus Anterior Glide Joint Mobilization On External Rotation Range Of Motion Of Patients With Shoulder Adhesive Capsulitis, Andrea J. Johnson

Loma Linda University Electronic Theses, Dissertations & Projects

Study Design: Repeated measures, randomized comparison of two treatment groups.

Objective: To compare effectiveness of two manual therapy procedures, posterior and anterior glide joint mobilization, for improving external rotation in patients with adhesive capsulitis of the shoulder.

Background: Joint mobilization procedures are often used by physical therapists to treat the accessory motion impairments associated with shoulder adhesive capsulitis. However opinions differ regarding the value of posterior versus anterior glide mobilization. especially for improving external rotation.

Methods and Measures: Subjects with idiopathic adhesive capsulitis exhibiting a specific external rotation range deficit, were randomly assigned to one of two treatment groups. For …

The Effect Of Electrical Stimulation On Blood Flow In Chronic Wounds In Patients With And Without Diabetes, Daryl J. Lawson

Loma Linda University Electronic Theses, Dissertations & Projects

Background and Purpose. Only 3% of the U S population is afflicted by diabetes, yet one of the most common chronic wounds is the diabetic ulcer. Decrease in blood flow may be one reason why only 31% of neuropathic diabetic ulcers heal in 20-weeks. The purpose of this investigation was to compare healing rates and blood flow of chronic stage III and IV wounds in people with diabetes and those without diabetes over four weeks of treatment. Blood flow was measured before, during, and after stimulation using one of two different electrical stimulation waveforms in a 32°C room.

Subjects …

Difference In Transverse Plane Scapular Position Of Professional Baseball Players Relative To Baseball Field Position, James M. Syms

Loma Linda University Electronic Theses, Dissertations & Projects

The objective of this study was to identify the variation of the scaption angle of professional baseball players among field position played. Subjects consisted of 109 minor league professional baseball players reporting for the 2002 spring training season, who were under contract with the Anaheim Angels professional baseball organization. Subjects reported to a sports medicine/physical therapy clinic for their 2002 spring training pre-participation physical examination. The scaption measurements were taken as a component of the examination.

Goniometric measurements were taken with the players in a relaxed standing position. Players were instructed to remain looking forward, roll their shoulders forward three …

Time To Task Failure Differs With Load Type When Old Adults Perform A Submaximal Fatiguing Contraction, Sandra K. Hunter, Ludovic Rochette, Ashley Critchlow, Roger M. Enoka

Exercise Science Faculty Research and Publications

Young adults exhibit a longer time to task failure when performing a submaximal isometric contraction by pushing against a force transducer (force task) than when supporting an equivalent inertial load (position task). The purpose of this study was to compare the time to failure for old adults when they performed a force task and a position task with the elbow flexor muscles. Eighteen old adults (72 ± 4 years) performed the force and position tasks at 20% maximal voluntary contraction (MVC) force until task failure. The time to task failure was briefer for the position task (10.6 ± 6.1 min) …

Feasibility Of Electromyography-Triggered Neuromuscular Stimulation As An Adjunct To Constraint-Induced Movement Therapy, Stacy L. Fritz, Yi-Po Chiu, Matthew P. Malcolm, Tara S. Patterson, Kathye E. Light

Physical Therapy Faculty Research

Background and Purpose. The purpose of this case report is to explore the feasibility of electromyography-triggered neuromuscular stimulation (EMG-stim) as an adjunct to constraint-induced movement therapy (CIMT).

Case Description. The patient was a 72-year-old man, 10 years poststroke, who did not meet traditional CIMT criteria. The EMG-stim was applied to the wrist extensors of the patient's weaker arm for one half of the CIMT training hours.

Outcomes. The intervention was feasible for this individual. Improvements were observed in motor behavior, quality and amount of use, muscle activity, wrist range of motion, and reaction time of the more-affected extremity. These improvements …

Plyometric Training Considerations To Reduce Knee Injuries, Erik Meira, Jason Brumitt

Faculty Publications - College of Physical Therapy

Strength and conditioning programs can serve a role in the prevention of injuries. Athletes who are at risk for a serious knee injury may benefit from a plyometric training program. The program that a high school coach develops or implements should be evidence based and address lower-extremity strength and biomechanical techniques.

In-Season Functional Shoulder Training For High School Baseball Pitchers, Jason Brumitt, Erik Meira, Greg Davidson

Faculty Publications - College of Physical Therapy

The overhead throwing motion is used in numerous sports including track, football, and baseball. Among these sports, the baseball pitch is unique in the demands placed upon the shoulder. The forces created in the shoulder can potentially lead to pathology affecting the athlete's career. To enhance performance and decrease the risk of injury, it is important that the athlete participate in a year-round periodized program. Inappropriate or deficient training combined with the stress that the shoulder experiences during a season can lead to strains, impingement, tendon or labral tears, and instabilities.

Obesity: Prevalence, Theories, Medical Consequences, Management, And Research Directions, C. Wilborn, J. Beckham, B. Campbell, T. Harvey, M. Galbreath, P. La Bounty, E. Nassar, J. Wismann, R. Kreider

Physical Therapy

No abstract provided.

Obesity: Prevalence, Theories, Medical Consequences, Management, And Research Directions, C. Wilborn, J. Beckham, B. Campbell, T. Harvey, M. Galbreath, P. La Bounty, E. Nassar, J. Wismann, R. Kreider

Pharmacy

No abstract provided.

Rabbit Knee Joint Biomechanics: Motion Analysis And Modeling Of Forces During Hopping, David L. Gushue, Jeff Houck, Amy L. Lerner

Faculty Publications - College of Physical Therapy

Although the rabbit hindlimb has been commonly used as an experimental animal model for studies of osteoarthritis, bone growth and fracture healing, the in vivo biomechanics of the rabbit knee joint have not been quantified. The purpose of this study was to investigate the kinematic and kinetic patterns during hopping of the adult rabbit, and to develop a model to estimate the joint contact force distribution between the tibial plateaus. Force platform data and three-dimensional motion analysis using infrared markers mounted on intracortical bone pins were combined to calculate the knee and ankle joint intersegmental forces and moments. A statically …

Electromyographic (Emg) Analysis Of Trunk Muscles At The Point Of Puck Contact During Slap And Wrist Shots Of Female Ice Hockey Athletes, Lon Donald, Kristi Kjellgren, Jodi Young, Michael Young

Physical Therapy Scholarly Projects

The number of female hockey players has increased significantly in the last decade. The first recorded female hockey game was in Ottawa in 1889. Since that time, hockey has spread into the United States .. Today, USA Hockey, Inc. reports 40,000 registered females and the Canadian Hockey Association has 55,000 female hockey players. Despite the rising popularity of the sport among females, there is little research specifically related to female hockey players.

Golf, tennis, and hockey swings utilize similar rotational components about the trunk. Trunk rotation is controlled and produced by the erector spinae, external oblique and rectus abdominus muscles. …

A Comparison Of The Effects On Throwing Velocity Of Straight Plane Versus Diagonal Plane Shoulder Exercises On 18-30 Year Old Non-Athletes, Jason Allred, Kevin O'Brien, Peter Tran

Physical Therapy Scholarly Projects

The purpose of this study was to examine changes in throwing velocity exhibited by subjects placed in a straight-line resistance-training group, a proprioceptive neuromuscular facilitation (PNF) resistance-training group, and a control group in order to compare benefits between training programs. Subjects were comprised of 42 college students between the ages of 18 and 30. The subjects were placed in one of the three experimental groups (straight-line resistance-training, PNF resistance training, and control) using Theraband™ elastic tubing. Each subject's overhand throwing velocity was measured on two separate occasions separated by 8-weeks of training. Rate of perceived exertion (RPE) was used to …

Survey Of The Use Of Pedometers And Knowledge Of Caloric Intake And Expenditure, Tera Bahl, Holly Freudenberg, Tara Hynek, Lynae Jost

Physical Therapy Scholarly Projects

Background and Purpose. As the prevalence of obesity continues to rise, medical professionals are searching for ways to combat this epidemic. One of the first steps is to assess the activity levels and eating habits of those who are obese and look for ways to modify these two areas in order to assist the obese individual in achieving a desirable and healthy weight. The purpose of this study is to determine if pedometer use, gender, or body mass influence one's knowledge of caloric consumption and expenditure.

Subjects and Methods. 253 questionnaires were sent out to randomly selected faculty and staff …

Effects Of Ankle Taping On Postural Stability, Jessica Brown, Andrea Foley, Michelle Hager, Andrea Kresel

Physical Therapy Scholarly Projects

Ankle taping is a common practice used to support the ankle joint after injury when engaging in activities. Balance is a crucial component of athletic performance that relies on input from the vestibular, somatosensory, and visual systems. Proprioception plays a role in the somatosensory portion of balance and postural control. Ankle taping, which is used to improve performance, may alter a person's proprioception, balance, and postural control.

The purpose of this study is to determine if ankle taping has an effect on postural control in an individual free of chronic or acute ankle dysfunction. Thirty-two subjects were tested on a …