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Gammal 2018-08-15, 13:34   #1
King Grub
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Reg.datum: Mar 2002
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Skillnader i teknik hos tyngdlyftare på elitnivå jämfört med lyftare under elitnivå

Citat:
OBJECTIVE:

The purpose of this study was to determine the differences in technical characteristics between top-elite and sub-elite male weightlifters performing the snatch style in the 69-kg category. The obtained results can provide valuable information for lower level lifters and coaches to achieve better competition performance by altering their training methods accordingly.

METHODS:

Six top-elite and six sub-elite weightlifters participated in this study. The heaviest successful snatch lift from the three attempts of each subject was analyzed. The video data were recorded under competition conditions at China National Weightlifting Championship and China Olympic Trial, which were analyzed by SIMI°Motion7.50 3D analysis system.

RESULTS:

The results showed that the maximum vertical- and relative vertical height (normalized by athletes' height) of the barbell, the maximal vertical linear velocity and acceleration of the barbell were significantly greater in top-elite lifters (p < 0.05). In addition, the flexion angles of the knee joint were significantly greater in top-elite lifters during the first phase and the third phase of the snatch lift. Sub-elite lifters showed less flexion and significantly slower angular velocity in knee joint than top-elite lifters during the second phase of the snatch lift (p < 0.05).

CONCLUSION:

The findings of the present study demonstrated the differences in technical characteristics between the two levels. According to these findings, coaches of sub-elite lifters should focus on exercises suitable to the strength characteristics of the first and the third phase of the snatch lift. In addition, the flexor muscles of knee joint among the sub-elite lifters should be strengthened and the ability of generating and utilizing elastic energy during the second phase of the snatch lift should be improved.
Heliyon. 2018 Jul 17;4(7):e00658. Comparative 3-dimensional kinematic analysis of snatch technique between top-elite and sub-elite male weightlifters in 69-kg category.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6076374/
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Gammal 2018-08-18, 11:40   #2
robiiiinnnn
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Reg.datum: Jun 2013
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Tack för ödmjukaste svar! Jag ska ta kontakt med en lyftarklubb i Halmstad, ligger 20 minuter härifrån, men får bli att jag kan träna på tyngdlyftning på helgerna, om det blir av. Dock vet jag inte om det finns möjlighet till instruktörer eller annat, kanske ändå blir att man tränar på egen hand även där?
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Gammal 2018-08-21, 12:36   #3
don ramon
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RESULTS:

The results showed that the maximum vertical- and relative vertical height (normalized by athletes' height) of the barbell, the maximal vertical linear velocity and acceleration of the barbell were significantly greater in top-elite lifters (p < 0.05). In addition, the flexion angles of the knee joint were significantly greater in top-elite lifters during the first phase and the third phase of the snatch lift. Sub-elite lifters showed less flexion and significantly slower angular velocity in knee joint than top-elite lifters during the second phase of the snatch lift (p < 0.05).
Intressant! Om jag förstår detta rätt så är det alltså förmågan att bibehålla kroppen över stången i fas 1 samt att explodera och räta ut kroppen i fas 2 & 3.

1. The first phase (M1, a-b): from start position to the instant of first maximum knee extension angle
2. The second phase (M2, b-c): the instant of knee angle from maximum to minimum;
3. The third phase (M3, c-d): from the end of M2 to the maximum vertical rising velocity of barbell
Bifogade bilder
Filtyp: jpg snatch.JPG (140.3 KB, 18 visningar)
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