Thursday, February 24, 2011

Roll Over


Description
Begin in Basic Pilates Stance, lying on back with legs straight up, hips in 90 degree angle, extending through heels, small arch in lower back, arms by sides on floor. Inhale. Lower legs 6”.

Exhale. Using lower abs, raise legs back to Pilates Stance and rock legs back while lifting hips. Continue using abdominals and draw hips and legs over until legs are parallel to chest. Release lower back. Keep chest open and use pressure from backs of arms and hands to help push over and stabilize the movement. Continue the deepening of the abdominals as you roll onto broad part of shoulders. Do not roll on to neck.

Inhale. Flex feet, lengthen back of legs and send energy out through heels. Take legs to shoulder width apart. Exhale. Allow legs to lower toward chest as you use abdominal control to slowly place each vertebrae down on mat, one at a time.

When sacrum reaches floor, bring legs back together in Pilates Stance. Inhale. Bring legs together and lower slightly to begin again.

Analysis:
This open kinetic chain exercise is divided into four phases for analysis: (1) Basic Pilates Stance; (2) trunk flexion to roll-over position; (3) roll over position to curl down position; (4) Basic Pilates Stance.

1. Roll Over Stance Phase (Basic Pilates Stance): Begin in Basic Pilates Stance, lying on back with legs straight up, hips in 90 degree angle, extending through heels, small arch in lower back, arms by sides on floor. Inhale. Lower legs 6”.





Shoulder Girdle L&R:
Movement: Stabilization
Agonist(s)-(contraction type): Pectoralis minor and lower trapezius (concentric)

Shoulder Joint L&R:
Movement: Extension
Agonist(s)-(contraction type):Latissimus dorsi, teres major, pectoralis major, subscapularis (concentric)

Elbow L&R:
Movement: Extension
Agonist(s)-(contraction type): triceps brachii, anconeus (eccentric)

Radioulnar joints L&R:
Movement: assist in extension of elbow
Agonist(s)-(contraction type): exgtensor carpi ulnaris, extensor carpi radialis brevis, extensor carpi radialis longus, extensor digitorum (eccentric)

Wrist and Hand L&R:
Movement: Weak extension of the elbow
Agonist(s)-(contraction type): extensor carpi ulnaris, extensor digitorum, extensor digiti minimi (eccentric)

Hip L&R:
Movement:Extension
Agonist(s)-(contraction type): Adductor magnus, semitendinosus, semimembranosus, biceps femoris, gluteus maximus, gluteus medius posterior fibers (eccentric)



2. Roll Over Prepatory Phase (trunk flexion to roll-over position): Exhale. Using lower abs, raise legs back to Pilates Stance and rock legs back while lifting hips. Continue using abdominals and draw hips and legs over until legs are parallel to chest. Release lower back. Keep chest open and use pressure from backs of arms and hands to help push over and stabilize the movement. Continue the deepening of the abdominals as you roll onto broad part of shoulders. Do not roll on to neck.


Shoulder Girdle L&R:
Movement: Stabilization
Agonist(s)-(contraction type): Pectoralis minor and lower trapezius (concentric)

Shoulder Joint L&R:
Movement: Extension
Agonist(s)-(contraction type):Latissimus dorsi, teres major, pectoralis major, subscapularis (concentric)

Elbow L&R:
Movement: Extension
Agonist(s)-(contraction type): triceps brachii, anconeus (eccentric)

Radioulnar joints L&R:
Movement: assist in extension of elbow
Agonist(s)-(contraction type): exgtensor carpi ulnaris, extensor carpi radialis brevis, extensor carpi radialis longus, extensor digitorum (eccentric)

Wrist and Hand L&R:
Movement: Weak extension of the elbow
Agonist(s)-(contraction type): extensor carpi ulnaris, extensor digitorum, extensor digiti minimi
(eccentric)


Hip L&R:

Movement: Flexion
Agonist(s)-(contraction type): illiapsoas, rectus femoris, Sartorius, pectineus, adductor brevis, adductor longus, gracilis, gluteus medius anterior fibers, gluteus minimus, tensor fasciae latae (concentric)


3. Roll Over Movement Phase (roll over position to curl down position): Inhale. Flex feet, lengthen back of legs and send energy out through heels. Take legs to shoulder width apart. Exhale. Allow legs to lower toward chest as you use abdominal control to slowly place each vertebrae down on mat, one at a time.
:



Shoulder Girdle L&R:
Movement: Stabilization
Agonist(s)-(contraction type): Pectoralis minor and lower trapezius (concentric)

Shoulder Joint L&R:
Movement: Extension
Agonist(s)-(contraction type):Latissimus dorsi, teres major, pectoralis major, subscapularis (concentric)

Elbow L&R:
Movement: Extension
Agonist(s)-(contraction type): triceps brachii, anconeus (eccentric)

Radioulnar joints L&R:
Movement: assist in extension of elbow
Agonist(s)-(contraction type): exgtensor carpi ulnaris, extensor carpi radialis brevis, extensor carpi radialis longus, extensor digitorum (eccentric)

Wrist and Hand L&R:
Movement: Weak extension of the elbow
Agonist(s)-(contraction type): extensor carpi ulnaris, extensor digitorum, extensor digiti minimi
(eccentric)


Hip L&R: Abduction & Extension

Movement: Abduction & Extension
Agonist(s)-(contraction type): EXTENSION: Adductor magnus, semitendinosus, semimembranosus, biceps femoris, gluteus maximus, gluteus medius posterior fibers (eccentric). ABDUCTION: Sartorius, gluteus medius, gluteus minimus, tensor fasciae latae (concentric)

4. Roll Over Recovery Phase (Basic Pilates Stance): When sacrum reaches floor, bring legs back together in Pilates Stance. Inhale. Bring legs together and lower slightly to begin again.





Shoulder Girdle L&R:
Movement: Stabilization
Agonist(s)-(contraction type): Pectoralis minor and lower trapezius (concentric)

Shoulder Joint L&R:
Movement: Extension
Agonist(s)-(contraction type):Latissimus dorsi, teres major, pectoralis major, subscapularis (concentric)


Elbow L&R:

Movement: Extension
Agonist(s)-(contraction type): triceps brachii, anconeus (eccentric)

Radioulnar joints L&R:
Movement: assist in extension of elbow
Agonist(s)-(contraction type): exgtensor carpi ulnaris, extensor carpi radialis brevis, extensor carpi radialis longus, extensor digitorum (eccentric)

Wrist and Hand L&R:
Movement: Weak extension of the elbow
Agonist(s)-(contraction type): extensor carpi ulnaris, extensor digitorum, extensor digiti minimi
(eccentric)


Hip L&R:

Movement: Flexion & Adduction
Agonist(s)-(contraction type): FLEXION: illiapsoas, rectus femoris, Sartorius, pectineus, adductor brevis, adductor longus, gracilis, gluteus medius anterior fibers, gluteus minimus, tensor fasciae latae (concentric). ADDUCTION: Pectineus, adductor brevis, adductor longus, adductor magnus, gracilis (concentric)

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