Medicine and Health Sciences Commons^™

A Comparison Of The Maximal Torque Production Of The Quadriceps Muscle During Morning And Afternoon Strength Assessment, Shawn Dockter

Physical Therapy Scholarly Projects

The purpose of this study was to compare maximal quadriceps torque production between morning (AM) and afternoon (PM) hours. Thirty healthy male subjects between the ages of 21 and 43 were tested during an AM and PM session on the Kin-Com dynamometer. Six concentric isokinetic contractions of the right quadriceps were tested at a speed of 60° Is. The maximal peak torque measurements were compared between the AM and PM sessions to establish the validity of results taken at differing times of day. No significant difference in strength assessment due to time of day was found. The data collected in …

An Electromyographic Study Of The Effects Of Plyometric Training Shoes On The Lower Extremity, Brian T. Laumb

Physical Therapy Scholarly Projects

Background and Purpose: Plyometric shoes have recently been introduced as an effective training tool to enhance several aspect of an athlete's ability, including vertical jump. The SkyFlex® system utilizes plyomteric training shoes in conjunction with plyometric exercises and drills to achieve maximum athletic performance. There is currently limited research to validate the manufacturer's claims of increasing vertical jump. The purpose of this study is twofold: l)To describe muscle activity during walking and jumping while wearing traditional athletic shoes and plyometric training shoes. 2)To measure the vertical jump of subjects trained with plyometric training shoes and a control group of subjects …

A Comparison Of The Maximal Torque Production Of The Quadriceps Muscle During Morning And Afternoon Strength Assessment, Shawn Mccoul

Physical Therapy Scholarly Projects

The purpose of this study was to compare maximal quadriceps torque production in early morning hours to afternoon hours. Thirty male subjects volunteered to participate in this study and were randomly assigned to an AM or PM testing session. At least one week after the first test, the subjects completed a similar test in the opposite time slot. Each subject was positioned on the Kin-Com (Chattecx Corp., Chattanooga, 'IN) dynamometer and performed six maximal concentric isokinetic repetitions of knee extension at 600/s between the ROM of 10° and 80° of knee flexion. The AM/PM ratios indicated no significant difference between …

An Electromyographic Study Of The Effects Of Plyometric Training Shoes On The Lower Extremity, Heather Phillips

Physical Therapy Scholarly Projects

Background and Purpose: Plyometric shoes have recently been introduced as an effective training tool to enhance several aspect of an athlete's ability, including vertical jump. The SkyFlex® system utilizes plyomteric training shoes in conjuction with plyometric exercises and drills to achieve maximum athletic performance. There is currently limited research to validate the manufacturer's claims of increasing vertical jump. The purpose of this study is twofold: l)To describe muscle activity during walking and jumping while wearing traditional athletic shoes and plyometric training shoes. 2)To measure the vertical jump of subjects trained with plyometric training shoes and a control group of subjects …

A Comparison Of The Maximal Torque Production Of The Quadriceps Muscle During Morning And Afternoon Strength Assessment, Michael Rexin

Physical Therapy Scholarly Projects

The purpose of this study is to compare maximal quadriceps peak torque production in isokinetic strength assessment in the morning and the afternoon. Thn1y male subjects between the ages of21 and 43 volunteered for this study. The subjects were randomly assigned to either an early morning group (7:30 AM to 9 AM) or an afternoon group (2:30 PM to 5 PM). Each subject performed six maximal concentric isokinetic contractions with the quadriceps muscles after a warm up and an initial familiarization session. Data analysis was done using a t-test for paired samples and Pearson's correlation The results showed a .90 …

Electromyographic And Motion Analysis Of The Trunk And Pelvis During The Golf Swing, James A. Vranna

Physical Therapy Scholarly Projects

The purpose of this study was to analyze and compare the trunk muscle activity and range of motion in male and female golfers. With the use of surface electrode electromyography and motion analysis, three male and three female Division II collegiate golfers were evaluated. The EMG activity of the erector spinae, gluteus maximus, and external oblique muscles was measured bilaterally during the golf swing. The main emphasis in analyzing the trunk range of motion was comparing relative pelvis to shoulder rotation (X-factor) throughout the swing. The researchers found definitive differences in the patterns of muscle activity and range of motion …

A Comparison Of The Maximal Torque Production Of The Quadriceps Muscle During Morning And Afternoon Strength Assessment, Denise Willardsen

Physical Therapy Scholarly Projects

The purpose of this study was to compare maximal quadriceps torque production in morning hours (AM) to maximal quadriceps torque production in afternoon hours (PM). Thirty healthy male subjects between the ages of 19 and 45 were tested during an AM and a PM session on the Kin-Com dynamometer. A trial of six concentric isokinetic contractions of the right quadriceps were tested at a speed of 60° Is. The maximal peak torque measurements were compared between the AM and the PM sessions to establish the accuracy of results taken at differing times of the day. No significant difference in strength …

Electromyographic And Motion Analysis Of The Trunk And Pelvis During The Golf Swing, Christopher Lugibihl

Physical Therapy Scholarly Projects

The purpose of this study was to analyze and compare the trunk muscle activity and range of motion in male and female golfers. With the use of surface electrode electromyography and motion analysis, three male and three female Division II collegiate golfers were evaluated. The EMG activity of the erector spinae, gluteus maximus, and external oblique muscles was measured bilaterally during the golf swing. The main emphasis in analyzing the trunk range of motion was comparing relative pelvis to shoulder rotation (X-factor) throughout the swing. The researchers found definitive differences in the patterns of muscle activity and range of motion …

Electromyographic And Kinematic Analysis Of Hockey Skating, Tylan P. Schmidt

Physical Therapy Scholarly Projects

There is a paucity of controlled studies concerning the off-season dryland training of hockey players. PURPOSE: To evaluate muscle activity and joint motion of the trunk and hip of hockey players skating on a hockey treadmill. METHODS: Seven male subjects, ages 18 to 21 years, were tested skating at 8 Mph on 0 percent and 30 percent grades on the treadmill. Electromyographical (EMG) data was collected from the following muscles: Rectus femoris, biceps femoris, adductor longus, gluteus maximus, rectus abdominus, and erector spinae. Motion analysis equipment was used to simultaneously collect kinematic data. RESULTS: There was an overall increase in …

Electromyographic And Kinematic Analysis Of Hockey Skating, Reese Williams

Physical Therapy Scholarly Projects

There is a paucity of controlled studies concerning the off-season dryland training of hockey players.

PURPOSE: To evaluate muscle activity and joint motion of the trunk and hip of hockey players skating on a hockey treadmill.

METHODS: Seven male subjects, ages 18 to 21 years, were tested skating at 8 Mph on 0 percent and 30 percent grades on the treadmill. Electromyographical (EMG) data was collected from the following muscles: Rectus femoris, biceps femoris, adductor longus, gluteus maximus, rectus abdominus, and erector spinae. Motion analysis equipment was used simultaneously.

RESULTS: There was an overall increase in the activity of the …

An Electromyographic Study Of The Effects Of Plyometric Training Shoes On The Lower Extremity, Susan Buckley

Physical Therapy Scholarly Projects

Background and Purpose: P1yometric shoes have recently been introduced as an effective training tool to enhance several aspect of an athlete's ability, including vertical jump. The SkyF1ex@ system utilizes p1yomteric training shoes in conjuction with p1yometric exercises and drills to achieve maximum athletic performance. There is currently limited research to validate the manufacturer's claims of increasing vertical jump. The purpose of this study is twofold: l)To describe muscle activity during walking and jumping while wearing traditional athletic shoes and p1yometric training shoes. 2)To measure the vertical jump of subjects trained with p1yometric training shoes and a control group of subjects …

An Electromyographic Study Of The Effects Of Plyometric Training Shoes On The Lower Extremity, Myles Haugen

Physical Therapy Scholarly Projects

Background and Purpose: Plyometric shoes have recently been introduced as an effective training tool to enhance several aspect of an athlete's ability, including vertical jump. The SkyFlex® system utilizes plyomteric training shoes in conjuction with plyometric exercises and drills to achieve maximum athletic performance. There is currently limited research to validate the manufacturer's claims of increasing vertical jump. The purpose of this study is twofold: l)To describe muscle activity during walking and jumping while wearing traditional athletic shoes and plyometric training shoes. 2)To measure the vertical jump of subjects trained with plyometric training shoes and a control group of subjects …

Plyometrics: A Look At The Biomechanical Basis Of Its Use In The Realm Of Sports Performance Enhancement And Physical Rehabilitation, Sara C. Fetsch

Physical Therapy Scholarly Projects

Plyometrics is a rather new and somewhat foreign concept that is becoming more popular in athletic training programs in the hopes of providing optimal gains in power, which is difficult to obtain by other means of exercise. With its increasing acceptance in the athletic environment, it is also being incorporated into rehabilitation programs as a means of providing strength and proprioceptive feedback.

Little is currently known about the principles that govern the use of plyometrics and the efficacy that has been demonstrated with this training method. The purpose of this independent study is to analyze the basic concepts underlying plyometrics …