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Articles 451 - 480 of 484

Full-Text Articles in Sports Medicine

Determining The Validity Of A New Cycle Ergometer Protocol For Estimating Vo(2)Max, James Allen Parrott Apr 2003

Determining The Validity Of A New Cycle Ergometer Protocol For Estimating Vo(2)Max, James Allen Parrott

Human Movement Sciences Theses & Dissertations

The current American College of Sports Medicine (ACSM) submaximal cycle ergometer protocol has been evaluated by several researchers for its validity in estimating maximal oxygen consumption (VO2max). It has been found that the ACSM protocol overestimates VO2max by 28% on average (Swain and Wright, 1997). It is felt that the short stage duration, only 3 minutes, of the ACSM protocol is largely responsible for this overestimation. The new submaximal cycle ergometer protocol evaluated here utilizes a 6-minute stage in an attempt to reduce the overestimation of VO2max while increasing the overall test validity.

A regression performed ...


Human Performance Lab Newsletter, February 2003, St.Cloud State University Feb 2003

Human Performance Lab Newsletter, February 2003, St.Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Kelly's Corner by David Bacharach
  • Eating the Proper Proportions by Brianne Olson
  • Make Every Day Active by Brian Berntsen
  • Making Sense of the Numbers: Cholesterol by Josh Olson
  • Take Action to Prevent Osteoporosis by Sara Stewart
  • Lab Research Assists Amputees by Glenn Street
  • Free Radicals are more than just People by John Seifert


Human Performance Lab Newsletter, March 2002, St. Cloud State University Mar 2002

Human Performance Lab Newsletter, March 2002, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Kelly's Corner by David Bacharach
  • Warming Up and Stretching by Josh Oien & Karen Walzcak
  • Investigating the SCVJ by Tal Amasay
  • Simple Science On Yet Another Supplement: Hydroxycut
  • Making Sense of the Numbers--Blood Pressure by Julia Devonish
  • 2001 -2002 Publications and Presentations
  • Heart Scan for Calcium Deposits by Brian Berntsen


Bone Mineral Density In Adolescent Female Athletes: Relationship To Exercise Type And Muscle Strength, Craig S. Duncan, Cameron J. Blimkie, Christopher T. Cowell, Stephen Burke, Julie N. Briody, Robert Giles-Howman Jan 2002

Bone Mineral Density In Adolescent Female Athletes: Relationship To Exercise Type And Muscle Strength, Craig S. Duncan, Cameron J. Blimkie, Christopher T. Cowell, Stephen Burke, Julie N. Briody, Robert Giles-Howman

Faculty of Health Sciences Publications

Purpose: This study investigated the influence of different exercise types and differences in anatomical distribution of mechanical loading patterns on bone mineral density (BMD) in elite female cyclists, runners, swimmers, triathletes, and controls (N = 15 per group). Associations between leg strength and BMD were also examined.

Methods: Areal BMD (g·cm−2) was assessed by duel-energy x-ray absorptiometry (DXA) (total body (TB), lumbar spine (LS), femoral neck (FN), legs, and arms). Right knee flexion and extension strength was measured using a Cybex Norm isokinetic dynamometer at 60°·s−1.

Results: Runners had significantly higher unadjusted TB, LS, FN, and leg ...


Biomechanical Difference Between Loaded Countermovement And Static Squat Jumps, S. G. S. Coleman, C. Karatzaferi, Michael H. Stone May 2001

Biomechanical Difference Between Loaded Countermovement And Static Squat Jumps, S. G. S. Coleman, C. Karatzaferi, Michael H. Stone

Michael H. Stone

It was the aim of this study to assess differences between countermovement (CMJ) and static (SJ) unloaded and loaded squat jumps. Eight male national/international level athletes and badminton players performed a series of jumps on two Kistler force plates. Maximum vertical force (Fmax) and rate of force development (RFDmax), net impulse (Impnet) and vertical take-off velocity (VT-O) were calculated and compared using a Two-Way (Jump x Load) ANOVA with two repeated factors. Fmax increased significantly with load and displayed a significant interaction with jump type. RFDmax showed significant jump main and interaction effects. Impnet only changed significantly with load ...


Human Performance Lab Newsletter, February 2001, St. Cloud State University Feb 2001

Human Performance Lab Newsletter, February 2001, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Boomeritis by Julia Devonish
  • Kelly's Corner by David Bacharach
  • The Lowdown on Antioxidants by Steve Vrieze
  • What is Exercise Physiology?
  • 2000-2001 Papers and Abstracts


The Effects Of Four Gymnastics Skills On Vertebral Column Hyperextension In Young Female Gymnasts, Tonia Mcclure Burke Jan 2001

The Effects Of Four Gymnastics Skills On Vertebral Column Hyperextension In Young Female Gymnasts, Tonia Mcclure Burke

Human Movement Sciences Theses & Dissertations

There is very limited information available on the effects of gymnastics skills on spinal hyperextension. Eleven young female gymnasts between the ages of 11 and 15 participated in this study. The subjects height and weight were taken then they were screened for musculoskeletal injuries, normal abdominal and back extensor strength, normal hip flexor and hamstring flexibility, spondylolisthesis, and scoliosis. Hyperextension of the spinal column was measured during normal standing, hyperextending the spine in standing, and during four different gymnastics skills, using the Peak5 motion analysis system. Each subject performed five acceptable trials of four different gymnastics skill including a back ...


Temporal And Emg Relationships Among The Phases Of Vertical And Depth Jumps, Amanda Albright Apr 2000

Temporal And Emg Relationships Among The Phases Of Vertical And Depth Jumps, Amanda Albright

Master's Theses

Plyometric exercises blend speed and strength training and are often used to help an athlete reach his or her ultimate power potential. Specifically, plyometric training is a technique that enhances neuromuscular excitability, which may in tum increase the ability to achieve a greater work output.

The purpose of this study was to examine the temporal and EMG differences between two different jumping techniques: a vertical jump and depth jumps of varying heights. The study consisted of 20 female physical education majors grouped as skilled or unskilled. Temporal and EMG data were collected for (a) the duration of time spent in ...


Human Performance Lab Newsletter, March 2000, St. Cloud State University Mar 2000

Human Performance Lab Newsletter, March 2000, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Entering the Zone by Angela Frelich (book review)
  • Dr. Blair Visits SCSU by Wayne Board (Steve Blair, Cooper Aerobic Institute)
  • Measuring Vertical Jump Height by Mike Rasmussen
  • Assisting Amputees by Tracy Beil
  • Kelly's Corner by David Bacharach
  • Exercise Induced Asthma by Jeremy Frost
  • Lower Body Power And CrossCountry Skiing by Kristi Chupurdia
  • Ribose: What can it do for you by Eric Fenstad
  • 1999 Papers and Abstracts


Human Performance Lab Newsletter, March 1999, St.Cloud State University Mar 1999

Human Performance Lab Newsletter, March 1999, St.Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Metabolife Review by Mollee Ludtke
  • Medial Tibial Stress Syndrome aka Shin Splints By Erie Fenstad and Mike Rasmussen
  • Division I Women's Hockey comes to SCSU by Scott McMillan
  • Thesis Work in Progress
  • Internship Experience by Jason Lahr


Looking Back: Synthetic Turf And Football Injuries, Allan Mazur, Jennifer Bretsch Jan 1999

Looking Back: Synthetic Turf And Football Injuries, Allan Mazur, Jennifer Bretsch

RISK: Health, Safety & Environment (1990-2002)

From the Astrodome to Astro-Turf, the authors revisit the issue of sports injuries and synthetic surfaces. The first in a series of comments exploring historic risk topics.


Acute Blood Pressure Responses To Static And Dynamic Exercise: Racial Differences, Reuben Leon Wright Apr 1998

Acute Blood Pressure Responses To Static And Dynamic Exercise: Racial Differences, Reuben Leon Wright

Theses and Dissertations in Urban Services - Urban Education

African Americans have a higher incidence of hypertension than other racial groups. Furthermore, some research suggests that normotensive individuals who exhibit exaggerated blood pressure (BP) responses to exercise may be at risk for future hypertension. This study sought to determine if normotensive African Americans exhibited exaggerated BP responses to static exercise or dynamic exercise relative to Caucasian Americans and Asian Americans. Thirty normotensive subjects participated from each of the three racial groups (15 males and 15 females). Subjects held 30% of maximal voluntary contraction (right knee extension) for 3 minutes, and BP was recorded during the third minute. On a ...


Human Performance Lab Newsletter, February 1998, St. Cloud State University Feb 1998

Human Performance Lab Newsletter, February 1998, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Kelly's Corner by David Bacharach
  • Welcome Dr. Seifert
  • What is the 40-30-30 Diet? Is It Better than the Typical By Debbi Pauison
  • Dietary Supplements: Can They Improve Exercise Performance? By Kira Camp
  • Super-oxygenated water? By Dr. John Seifert
  • Eliminating the Bounce Dr. Glenn Street
  • Research Publications
  • Thesis Work in Progress
  • Internship Experience by Joel French


Human Performance Lab Newsletter, 1997, St. Cloud State University Jan 1997

Human Performance Lab Newsletter, 1997, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Kelly's Corner by Jack Kelly
  • The Effect of Exercise on Infection and Immunity by Shae Wilson
  • Thank you, Jack Kelly
  • Training by the Numbers by Al Kraft
  • The Myth of the "Total Body Workout" by Joel French
  • Thesis Work in Progres
  • The Future of Fitness and Health in America by Lloyd Hilgart


A Validation Of Target Heartrate Formulas Used In Swimming, Tasha Kay Litwinski Apr 1996

A Validation Of Target Heartrate Formulas Used In Swimming, Tasha Kay Litwinski

Master's Theses

The purpose of this study was to explore whether procedures used to establish target heart rates (THRs) for running are applicable to front crawl swimming. Eight male and 22 female fitness swimmers from Western Michigan University participated in this study. Their exercise durations under three experimental conditions were compared. The conditions were: (a) Condition 1, a treadmill run at an intensity equal to a THR of 85% of heart rate reserve (HRR); (b) Condition 2, a front crawl swim at an intensity equal to 85% of HRR; and (c) Condition 3, a front crawl swim at an intensity equal to ...


Human Performance Lab Newsletter, 1996, St. Cloud State University Jan 1996

Human Performance Lab Newsletter, 1996, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Kelly's Corner: Why We Choose to be Physical by Jack Kelly
  • Anti-What? by Dean Stulz (on anti-oxidants)
  • Getting Started in Resistance Training by Jamie Jerdee
  • Internship at the U.S. Olympic Training Center
  • What's Going On in the HPL?


Human Performance Lab Newsletter, Spring 1995, St. Cloud State University Apr 1995

Human Performance Lab Newsletter, Spring 1995, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Kelly's Corner by Jack Kelly
  • ACSM Promotes Healthy People 2000 by Bryan Huft
  • Publications and Presentations
  • Recipes
  • Turn off the TV - Turn on the Fitness! by Deb Meierhofer
  • Drink Up! by Janice Engebretson


Long Term Restoration Of Peak Torque, Endurance And Muscle Activation Post Anterior Cruciate Ligament Reconstruction, Darryl Alan Turner Jan 1995

Long Term Restoration Of Peak Torque, Endurance And Muscle Activation Post Anterior Cruciate Ligament Reconstruction, Darryl Alan Turner

Theses : Honours

In recent years, Accelerated Rehabilitation (A.R.) protocols have been used following Anterior Cruciate Ligament (A.C.L.) reconstructions, the longer term effects of these programs are seldom analysed. This study examined musculoskeletal mechanisms that might affect long term functional restoration, the control subjects (n = 19) of mixed age and gender, had no previous knee deficiencies and were recreationally fit. The experimental subjects (n = 17) had undergone intra-articular A.C.L reconstruction, using bone patellar-tendon bone grafts performed by the same surgeon and had also participated in the A.R. protocol, similar to that described by Shelbourne and Nitz (1990 ...


Human Performance Lab Newsletter, February 1994, St. Cloud State University Feb 1994

Human Performance Lab Newsletter, February 1994, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Kelly's Corner by Jack Kelly
  • The Fit Philosopher by Sonya Hansen (about Prof. Myron Anderson)
  • Heart at Work by Mary Kazemba
  • HPL Research


The Biomechanical Analysis Of Two Types Of Place Kicks: The Toe And Instep Kicks, Kaylynn Albers Dec 1993

The Biomechanical Analysis Of Two Types Of Place Kicks: The Toe And Instep Kicks, Kaylynn Albers

Master's Theses

This study described the biomechanical differences between two styles of the place kick; the toe kick and instep kick. The biomechanical variables included joint angles, velocities, and displacements. Five high school age subjects kicked five trials of the toe kick and five trials of the instep kick at both 20 and 35 yards. The place kicks were filmed with a high speed camera, digitized and analyzed with peak 4.2 computer software.

The findings for joint angles were consistent with those found in the literature. The velocity for the kicking foot and the ball were lower in this study than ...


Human Performance Lab Newsletter, February 1993, St. Cloud State University Feb 1993

Human Performance Lab Newsletter, February 1993, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • A Lesson from Grandma by Moira Petit
  • Two Steps to Better Health by Jack Kelly
  • Home Exercise Equipment: What's Right for Me? by Kari Brown
  • Quality Quenching
  • Just a Reminder (on frostbite) by Mike Reid
  • Stress Buster by Mary Kazemba
  • Nutrition Update by Lori Hyink
  • HPL Research
  • Graduate Programs & Research


Regulation Vs. The Market: The Case Of Bicycle Safety (Part Ii), Ross D. Petty Mar 1991

Regulation Vs. The Market: The Case Of Bicycle Safety (Part Ii), Ross D. Petty

RISK: Health, Safety & Environment (1990-2002)

In this part, Professor Petty examines bicycle Risk in detail, comparing the accomplishments of the CPSC's bicycle standard with market forces resulting in, e.g., the development and use of hardshell bicycle helmets. Moreover, he briefly discusses the role of tort liability in managing Risk. Ultimately he concludes that, in the case of bicycle safety, regulation has failed to be as effective as other forces tending to reduce bicycle injuries. [Part I appears at 77.]


Regulation Vs. The Market: The Case Of Bicycle Safety (Part I), Ross D. Petty Jan 1991

Regulation Vs. The Market: The Case Of Bicycle Safety (Part I), Ross D. Petty

RISK: Health, Safety & Environment (1990-2002)

This part of the article describes events leading to the creation of the Consumer Product Safety Commission - and the on-going debate between those who believe safety regulation is necessary and those who believe that market forces can achieve acceptable levels of Risk. The author also sets the stage for a detailed examination of bicycle Risk. In the next issue, he compares the accomplishments of the CPSC's bicycle standard with, e.g., the development and use of hard-shell bicycle helmets. Moreover, he discusses the role of tort liability in managing Risk and ultimately concludes that, in the case of bicycle ...


Design And Implementation Of A Sports Medicine Clinic With Emphasis On The High School Student-Athlete, Christopher Allen Mumaw Jan 1989

Design And Implementation Of A Sports Medicine Clinic With Emphasis On The High School Student-Athlete, Christopher Allen Mumaw

Theses Digitization Project

No abstract provided.


Human Performance Lab Newsletter, Vol. 6, No. 1, St. Cloud State University Apr 1987

Human Performance Lab Newsletter, Vol. 6, No. 1, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Motivation Remains Key to Successful Exercise Program
  • Stretching: An Exercise for All Seasons
  • Laughter and Longevity
  • The Sun: Good or Bad?
  • Meet Our Graduate Students
  • The Battle Against High Cholesterol
  • Is Your Heart at Risk?


Human Performance Lab Newsletter, Vol 5, No. 1, St. Cloud State University Dec 1985

Human Performance Lab Newsletter, Vol 5, No. 1, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Record Number of Graduate Students Enrolled
  • To Your Health!
  • Eating Fish is a Healthy Bet
  • Exercise...Too Little or Too Much?


Human Performance Lab Newsletter, Vol. 4, No. 2, St. Cloud State Univesity Apr 1984

Human Performance Lab Newsletter, Vol. 4, No. 2, St. Cloud State Univesity

Human Performance Lab Newsletter

Contents of this issue include:

  • A Gift to Yourself
  • Nutrition Counseling
  • What is Nutrition? by Kathy McLaughlin
  • Cholesterol - Diet - Health
  • Another Reason for Warming Down
  • Your Best Foot Forward
  • Inspiration for Walkers


Human Performance Lab Newsletter, Vol 4, No. 1, St. Cloud State University Oct 1983

Human Performance Lab Newsletter, Vol 4, No. 1, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue includes:

  • The Glory in Mediocrity by George Sheehan
  • Proper and Improper Weight Loss
  • More on Smoking
  • On Drinking
  • The Danger of Sedentary Lifestyles


Human Performance Lab, Vol. 3, No. 1, St. Cloud State University Apr 1983

Human Performance Lab, Vol. 3, No. 1, St. Cloud State University

Human Performance Lab Newsletter

Contents of this issue include:

  • Minnesota Life Expectancy Beats the Nation
  • Lowering the Slope of the Hill
  • Where There's Smoke, There's a Rat! By Art Buchwald
  • Rise and Shine by Bev Oehrlein, Graduate Assistant


Human Performance Lab Newsletter, Vol. 2, No. 2, St. Cloud State University Apr 1982

Human Performance Lab Newsletter, Vol. 2, No. 2, St. Cloud State University

Human Performance Lab Newsletter

Contents for this issue include:

  • Listening
  • Fund Raising
  • Noon Fitness by Sue Strand
  • Is Physical Fitness Good Business by Oehrlein, Graduate Student
  • Depression: Challenge/Opportunity? by Deb Krippner, Graduate Student