This study published in the Journal of Strength and Conditioning provided information about the best use of speed
during the lifting phase of weight training.
They reported low to moderate levels of medial (23 — 32 %) and lateral (37 — 51 % of MVIC) gastrocnemius muscle activity
during the lifting phase.
Not exact matches
During the push - off
phase when running, the big toe may stay flat and doesn't
lift to push off.
During the initial
phase of her investigation, she also stuck to noninvasive mapping methods, which allowed her to locate a number of major camp landmarks without
lifting a shovel.
A standard tempo on a movement like a bench press might be as follows: 2 -0-1, which is 2 seconds down
during the eccentric
phase when you're lowering the weight to your chest, no pause (when you change from eccentric to concentric) and 1 second up when you
lifting the bar upwards.
A good way to reduce this risk is to move through a complete range of motion
during both lower and
lifting phase of the movement and to avoid lowering the bar too far.
While technically accommodating resistance doesn't speed up the
lift dramatically as a whole, what it does do well is make sure the entire stroke has great effort slightly longer
during the concentric
phase.
By focusing on balance exercises
during the General Physical Preparedness
Phase, I have been not only deconstructing my technique in basic
lifts such as the bench, squat, deadlift, kettlebell snatches and cleans, etc..., I have also been working on joint stability, abdominal strength, and postural imbalances.
During this next
phase of your training, which can last up to six months, you are going to
lift more weight, getting closer to your one - rep max (aka your 1RM, the most you can
lift for a single rep).
You will focus on dynamic effort
lifting during the switching
phase.
The combination of upright upper body and low squat depth makes it an effective training exercise for the Olympic
Lifts, as it trains the deceleration required
during the catch
phase and the final completion of the
lift in the recovery
phase.
Change the amount of time
during the eccentric and concentric
phases of your
lifts.
Tempo Changes: Change the amount of time
during the eccentric and concentric
phases of your
lifts.
Overall, it appears that the middle trapezius muscle activity is greater
during the start and middle
phases of the deadlift compared to the top of the
lift.
Comparing the
phase of
lift, Carb et al. (2014) investigated the muscle activity of the upper trapezius
during conventional deadlifts performed with a 1RM load, and further compared the muscle activity at the moment of
lift - off and as the bar passed the knees.
In contrast, with the same absolute load (load
lifted in both movements equal to 90 % of overhead squat), there was no difference in gastrocnemius muscle activity
during the concentric
phase yet greater muscle activity
during the eccentric
phase when performing the overhead squat.
During the eccentric phase, both the medial and lateral gastrocnemius displayed superior muscle activity during the lock - out and mid-range, compared to the lift - off pos
During the eccentric
phase, both the medial and lateral gastrocnemius displayed superior muscle activity
during the lock - out and mid-range, compared to the lift - off pos
during the lock - out and mid-range, compared to the
lift - off position.
Power output actually increases with increasing load in the snatch
lift (Hadi et al. 2012) is greater
during the snatch
lift in the second pull than in the first pull, being around 2,000 — 3,000 W in the second pull
phase and 600 — 1,000 W in the first pull
phase (Garhammer, 2001; Gourgoulis et al. 2009; Harbili, 2012; Akkuş, 2012; Harbili & Alptekin, 2014).
The movement remains controlled, biomechanical analyses could show, that proficient
lifters even have a 5 — 10 % decrease in bar velocity
during the transition
phase.
During this
phase, it is important to keep the bar close to you, if you look at the movement from the side,
lift the bar in a straight line.
The wilfleming.com Olympic Weightlifting technique poster is a brief guide to showing you exactly the positions you should hit in your
lifts and even delivers helpful coaching cues
during each
phase of the
lifts.
Other details: longer rest intervals of 2 - 3 minutes in between sets are required
during heavy
lifting phases.
However some papers have investigated the effect of varying rep speed
during both the concentric (
lifting) and the eccentric (lowering)
phases.
During that
phase, your
lifts should be kept as basic as possible.
Remember to keep proper form
during every
phase of the
lift and only pull what you are capable of.
Comparing the effect external resistance type, Saeterbakken et al. (2014) explored erector spinae muscle activity
during the back squat with 6RM loads using either a barbell or a combination of a barbell and elastic resistance (where elastic resistance comprised between 25 — 40 % total load, depending on the
phase of the
lift).
They reported no difference in either upper or lower erector spinae muscle activity
during the ascending
phase of the
lift.
Assessing the effect of external resistance, Saeterbakken et al. (2014) explored muscle activity of the abdominals
during the back squat with either a barbell or a combination of a barbell and elastic resistance (where elastic resistance comprised between 25 — 40 % total load, depending on the
phase of the
lift), using 6RM.
I understand that
lifting weights with higher reps and lower weight can increase heart rate which would put you in an anaerobic state, so this would not be good to do
during the endurance building
phase.
Vertical force is needed
during both accelerating and maximal speed sprinting to
lift the center of mass in every stride, as the flight
phase involves falling downwards due to gravity (Weyand, 2000; 2010).
Moreover, Jakobsen et al. (2013) reported that
during lunges with both free weights and elastic resistance, EMG amplitude of most of the leg muscles is greatest at the point of peak hip and knee flexion, where ground reaction forces are exerted in order to start the
lifting phase but that in the elastic resistance condition, there was a trend towards a more even level of EMG amplitude across joint angles.
Just a couple of days back we reported that the Federal Aviation Administration has finally
lifted restrictions that were previously in place, restrictions regarding use of personal electronic devices
during certain
phases of the flight.
According to California Watch investigative reporter Susanna Rust, a private consultant hired by California school officials in 2009 inserted a new section in the teacher's edition of the 11th - grade Mass Production, Marketing and Consumption in the Roaring Twenties textbook entitled «The Advantages of Plastic Shopping Bags,» which includes passages
lifted verbatim from letters the American Chemistry Council sent
during the public comment
phase of the curriculum's drafting.