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تعداد آیتم قابل مشاهده باقیمانده : 3 مورد
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Hamstring injury prevention program

Hamstring injury prevention program
This table outlines a hamstring injury prevention program for athletes at high-risk for recurrent strain.
3 days per week maintenance and prevention:
Warm-up: Stationary bike or light jogging, 5 minutes
Exercises
1. Side shuffle: 30 m, 3 x 1 min
2. Grapevine jog: 30 m, 3 x 1 min
3. Boxer shuffle: 30 m, 3 x 1 min
4. Advanced skipping: A hop-step forward movement that alternates from leg to leg and mimics arm position in running. During the hop, the opposite knee is lifted in a flexed position. Then the opposite knee extends prior to hip extension, recreating the terminal swing phase of running. The leg is then pulled backward in a pawing type action.
5. Forward-backward accelerations, 3 x 1 min, start at 10 m, progress to 20 m
6. Rotating body bridge, 5 second hold each side, 2 x 10 reps. Advance to performing with dumbbells as able.
a. Begin in push-up extended position, then rotate to side plank position with arm extended, hold for 5 seconds, then rotate torso placing weight on opposite arm in side plank position on this side and repeat
7. Supine single-limb chair bridge, 3 x 15 reps
8. Single-limb balance windmill touches, 3 x 15. Advance to performing with dumbbells as able.
a. Balance on 1 leg, rotate trunk to touch cone alternating right and left hands, twisting at torso
Eccentric hamstring strengthening
Include in the prevention program a progression of eccentric hamstring strengthening exercises, such as the following:
Nordic hamstring exercise ("Nordic lowers"):
1. Kneel on the ground and stabilize your lower legs by having a partner push down firmly on the back of your ankles or by wedging your feet or ankles under a heavy object
2. While keeping your body perfectly straight from your knees to the top of your head, and with your hands placed just in front of your chest, slowly lower your torso until your hands touch the ground
3. Push yourself back up to the kneeling position and repeat for suggested number of repetitions
Note that this exercise is challenging; progress slowly
The following schedule can be used for the Nordic hamstring exercise:
  Sessions per week Sets and repetitions
Week 1: 1 2 x 5
Week 2: 2 2 x 6
Week 3: 3 3 x 6-8
Week 4: 3 3 x 8-10
Week 5 (and thereafter): 3 1 x 12, 1 x 10, 1 x 8
Adapted from:
  1. Heiderscheit BC, Sherry MA, Silder A, et al. Hamstring strain injuries: recommendations for diagnosis, rehabilitation, and injury prevention. J Orthop Sports Phys Ther 2010; 40:67.
  2. Mjølsnes R, Arnason A, Østhagen T, et al. A 10-week randomized trial comparing eccentric vs. concentric hamstring strength training in well-trained soccer players. Scand J Med Sci Sports 2004; 14:311.
  3. Arnason A, Andersen TE, Holme I, et al. Prevention of hamstring strains in elite soccer: an intervention study. Scand J Med Sci Sports 2008; 18:40.
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