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Resistance Training

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Exercises performed through a full joint range of motion maintains joint ... Speed of repetition is determined by the goal of the exercise ... – PowerPoint PPT presentation

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Title: Resistance Training


1
Resistance Training Spotting Procedures
  • University of Massachusetts Boston
  • Strength Conditioning
  • Timothy R. Morgan, D.C.

2
Hand Grips
  • Supinated Grip aka underhand grip
  • palms up, knuckles down
  • Pronated Grip aka overhand grip
  • palms down, knuckles up
  • Alternated Grip one hand is pronated
  • and one hand is supinated used with
  • heavy lifts, i.e. deadlift, and during
  • spotting maneuvers
  • Hook Grip pronated grip with thumb
  • tucked under index and middle finger used
  • when extra hand strength is needed, i.e.
    snatch

3
Grip Width Body Positioning
  • Depending on the goal of the exercise,
    different grip widths are utilized.
  • Common Grip Width approximately shoulder width
  • Wide Grip Width - wider than shoulder width
  • Narrow Grip Width narrower than common grip
  • Hand positioning for all exercises should result
    in a balanced, even bar care should be taken to
    assure symmetrical distance between plates and
    hands
  • Standing exercises typically require a stable
    body position, with feet spread slightly wider
    than shoulders
  • Seated or supine exercises should be carried out
    with five points of contact in order to
    maintain maximal stability and spinal support

4
Body Positioning (cont.)
  • 5 Point body contact position - Back of head,
    Upper back shoulders, Lower back/buttocks,
    right left feet

Cam or lever based machines have positioning
requirements depending on body size, proportions
and axis of rotation primary joint axis of
rotation is aligned with the machines A of R.
5
Movement ROM Speed
  • Exercises performed through a full joint range of
    motion maintains joint mobility and provides for
    dynamic flexibility of the musculature
  • Safety concerns must be considered when
    prescribing exercises through a joints full ROM.
    If the muscle/joint mechanical advantage is lost
    as the joint ROM increases, injury likelihood
    also increases
  • Speed of repetition is determined by the goal of
    the exercise
  • Isometric used in rehab, early strength
    training and with muscle activation protocols
    no movement is made, therefore no speed
  • Slow controlled movements allow for a full
    joint ROM if applicable
  • Accelerated, quick movement utilized with power
    lifts PW/t

6
Speed of Movement
  • Tempo the speed of a singular repetition Tempo
    can be expressed in numerical terms, based on
    three phases of the repetition
  • Eccentric/Pause/Concent
    ric
  • i.e. 3/1/2 2/0/2
    4/1/2
  • Set a group of repetitions
  • Time Under Tension (TUT) the time it takes to
    complete a set TUT reflects the total time that
    the muscle is under tension Muscle response is a
    function of TUT
  • Hypertrophy (increase in size) - TUT must be
    between 30-70 sec/set
  • Strength TUT must be between 1-20 sec/set

7
Breathing Considerations
  • Exhale through the sticking point of the lift
    which is the most difficult and strenuous portion
  • Inhale through the easier portion of the lift
  • Generally speaking, the athlete should attempt to
    maintain a normal breathing pattern but may
    alter it to relieve the stress of the strenuous
    portion of the lift
  • Valsalva Maneuver when expiration is
    intentionally restrained due to a closed glottis
    air is not moving out or in during the maneuver
  • The Valsalva maneuver has potentially negative
    consequences, i.e. an increase in BP, changes in
    hemodynamics, dizziness, blackouts and
    significantly increases intra-abdominal pressure
  • This increase in abdominal pressure can be
    utilized in a positive manner it can help to
    stabilize the spine during heavy lift it helps
    to maintain lumbar spine flat back posture,
    reduces intervertebral disc compression as it
    temporarily increases the rigidity of the spine
  • If the Valsalva Maneuver is utilized as a
    technique, breath holding should be limited to
    1-2 seconds at most

8
Weight Belts
  • Weight Belts are used to prevent excess stress
  • on the lower back during sets that use
    near-maximal
  • or maximal loads.
  • Overuse of or dependence on weight belts
    effectively detrains the abdominal muscles
  • Weight belts should not be used during lifts
    that do not place near maximal strains on the
    lumbar spine
  • Lumbar spine stabilization provided by
    functionally strong core musculature is much
    preferred over a weight belt
  • Powerlifters may benefit from training
    sub-maximal lifts without the use of a belt they
    can then use a belt when attempting maximal lifts

9
Spotting Free Weight Exercises
  • Spotter someone who supervises, monitors and
    provides for the safety of the athlete while
    he/she performs an exercise the spotter assists
    in the execution of an exercise to help protect
    the athlete from injury the spotter may provide
    verbal encouragement and motivation, and may
    provide assistance in the form of partner
    assisted repetitions when the athlete is unable
    to perform the repetition successfully
  • Higher risk exercises may require more than one
    spotter
  • Two spotters are used when weight is lifted
    overhead when the weight is carried on the back
    or on the anterior shoulders or when weight is
    lifted over the face
  • Overhead exercises and those involving the bar on
    the back or front shoulders should be performed
    inside of a power rack
  • Dumbbell exercises typically require more spotter
    skill experience and the spotter should spot
    as close to the dumbbells as possible
  • Power exercises should not be spotted out of
    concern for the spotters safety

10
Spotting (cont.)
  • Depending on the type of lift and the amount of
    weight being lifted, two or more spotters may be
    utilized however this occurs only in special
    circumstances such as very heavy strength
    training and powerlifting competitions

11
Spotting
  • Olympic lifting does not call for spotters as
    it is potentially very dangerous
  • Olympic style lifting is done on specialized
    platforms, with abundant space if the lifter
    cannot handle the lift, he/she has the option of
    dropping the weight
  • The SC professional must teach the athlete how
    to manage the weight when the lift is missed.
    If the weight is being carried in front, the
    lifter pushes the weight forward and allows it to
    drop to the platform. If the weight is carried
    behind the head, the lifter releases the bar and
    jumps forward. The SC professional is therefore
    responsible for maintaining a safe, clear
    exercise space. No injuries !

12
Spotter/Lifter Communication
  • Clear communications between the lifter and the
    spotter regarding
  • How the weight is to be lifted
  • How the weight is to be racked
  • How many repetitions are expected
  • How much assistance the lifter requires
  • Whether or not a Liftoff is to be used
  • Liftoff lifting the bar from the supports to a
    position in which the athlete can begin the
    exercise a liftoff is not always required but
    must be communicated before the lift, i.e. on
    the count of three
  • With the failure of a repetition, the lifter
    must communicate with the spotter when to assist
    with the lift, i.e. take it

13
Various Free Weight Equipment
Dumbbells
Power Squat Racks
Collars
Lifting Platform
Barbell
14
References
  • Baechle, TR. Earle, RW. Essentials of Strength
    Training and Conditioning, 2nd Ed. 2000. Human
    Kinetics.
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