Published on February 21, 2014
Muscle Strength Testing 1RM and 4-6 RM Testing Dinh Nguyen Michelle Rumpel Kristian Blanco
Muscular Strength • • • Ability of a muscle group to develop maximal contractile force against a resistance in a single contraction. Static strength = maximal force produced when limb is not moving Dynamic strength = maximal force produced in a single contraction at a specified velocity
Reasons for Testing Muscle Strength Establish baselines before training Monitor progress while training Assess effectiveness of programs In KRG- to have information to compare to the bone scanning data Diagnose Certain disorders/pathologies that may affect muscle strength or nerve damage causing muscles to not activating.
Ways to Test Muscle Strength Manual Muscle Tests Functional Performance Training Dynamometer- force exerted on machine measured in Kg and lbs 1 Rep Max- highest weight that one repetition of movement can be performed with proper form before muscle failure 4-6 Rep Max- highest weight that 4-6 repetitions of movement can be performed with proper form before muscle failure
Muscles used in Grip Strength
Muscles Used in Leg Extension Quadriceps: Rectus femoris Vastus Intermedius Vastus Medius Vastus Lateralis
Muscles Used in Leg Flexion Hamstrings: Biceps Femoris Semimebranosus Semitendinosus
Muscles Used in Plantar Flexion Gastocnemius Soleus Plantaris Flexor Hallucis Longus Flexor Digitorum Longus Tibialis Posterior
Muscles used in Dorsiflexion Tibialis Anterior Extensor Hallucis Longus Extensor Digitorum Longus Peroneus Tertius
Significance of Research 1 rep max is not always practical, especially with older patients Less chance of injury with a 4-6 rep max because of lower weight
Research Question Research Question- How accurate is the 4-6 rep max prediction equation in determining the actual 1 rep max?
Methodology 6 Participants: 4 Males and 2 Females Ages: 19 - 23 Activity Level: Active -Grip strength (Dynamometer) -Quads (Leg Extension Machine) 5 minute rest -Hamstring (Leg Curl Machine) 5 minute rest -Plantarflexion (Rotary Calf Machine)
Methodology For each 1 rep max test: 1. 8-10 reps of light weight for warm up and to gain proper form 2. 30 second rest 3. Increase weight and try 1 rep 4. Continue to increase weight until failure For each 4-6 rep max test: 1. 8-10 reps of light weight for warm up and to gain proper form 2. 30 second rest 3. Increase weight and and try 4-6 rep max 4. Continue to increase weight until failure
Assessment Tools Hand Dynamometer (Grip) Cybex leg extension machine→ quadriceps
Assessment Tools Cybex seated leg curl machine→ hamstrings Cybex rotary calf machine→ plantarflexion
Assessment Tools Handheld Dynamometer for Dorsiflexion and Plantar Flexion
Assessment Tools Cybex leg extension machine→ quadriceps Cybex seated leg curl machine→ hamstrings Cybex rotary calf machine→ plantarflexion Just learned we have a portable dynamometer
1 RM Prediction Equations
Current Literature - LaSuer, D. et al. “The accuracy of Prediction Equations for Estimating 1-RM Performance in the Bench Press, Squat and Deadlift” (1997). - Dohoney, P. et al. “Prediction of One Repetition Maximum (1-RM) Strength from a 4-6 RM and a 7-10 RM Submaximal Strength Test in Healthy Young Adult Males” (2002).
Possible Errors in Procedure Rest Time/warm-ups Correct Form Reps until reaching max Practice Bias Order of testing No familiarization with equipment
Challenges Faced Getting in touch as a group Lack of time to meet up Time for preparation Time for conducting research Lack of equipment
Muscle Strength Assessment ... 1. Muscle Strength Testing 1RM and 4-6 RM Testing Dinh Nguyen Michelle Rumpel Kristian Blanco
LAB 3: UPPER EXTREMITY: PART II – MUSCLE TESTING FOR SHOULDER, WRIST, AND HAND Group 4 Tyler Hyvarinen Aaron Ruberto Allison Pruys Kelly Heikkila Dr. Tony.
Based on the concept of internal energy fundamental to traditional Chinese medicine, muscle testing is a noninvasive way of evaluating the body’s ...
Workshop on Therapeutic Approaches for Duchenne Muscular Dystrophy - Presentation ... quantitative muscle testing and ... Research Group
Strength of Individual Muscle Groups ... It is wise to pair the testing of each muscle group immediately with testing of its contralateral counterpart ...
lecture 1,INTRODUCTION TO MANUAL MUSCLE TESTING ... Presentations; People; Groups; Help; FAQ; Feedback; RSS; Latest; Most Viewed; Most Rated; Sidebar ...
Title: PowerPoint Presentation Author: Amy Rene Dolgener Last modified by: Forrest A Dolgener Created Date: 1/10/2003 10:37:37 PM Document presentation format
Preferred Testing Order of MMT8 Muscle Groups. This table provides a preferred order to the testing of muscle groups for manual muscle testing.