TouchesBalanced over midfoot
Side view
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Roulette

Marseille turn, Zidane roulette

3 reps · advanced

The roulette: the right sole drags the ball back as the body spins on the left foot; half way round, the left sole takes over and drags it on as the spin continues on the right foot, a full 360 degrees, the back always between the defender and the ball. Then the other way round, starting with the left.

8°Ankle dorsiflexion
36°Knee flexion
43°Hip flexion
24°Trunk from vertical
35°Arm to trunk
55°Elbow flexion
21Ankle spacing, cm
89Hand spacing, cm
1Knee outside ankle, cm
0°Knee cave, ° inside toe line
50 / 50Load left / right, %
0Pelvis drop, cm

Load and joint demand

A size 5 football and your own bodyweight: no weights.

Lower back
64 / 64
Hip extensors
41 / 41
Knee extensors
2 / 48
Calves
45 / 91

N·m now / peak over the rep.

Faults

Faults grow with knee bend and apply to lifts standing on the floor. The fault check flags a knee caving more than 10° inside the line of the toes and a load split beyond 60/40. Knee cave shows best in the front camera.

Body

Femur changes keep standing height fixed by shortening or lengthening the torso. Longer femurs force more forward lean in any squat.

Muscles worked

Adductors
29 pts
Calves and shins
22 pts
Glutes
18 pts
Abs and core
16 pts

Effort and your quota

4.5/10 effort4.5fatigue per set

3 reps (a rep is the whole move as shown): light touches, the ball kept close. Ball mastery is practised for touch, balance and coordination, never to failure, so this does not change with your limits.

Level: advanced. One round counts like light conditioning work: 62 legs points, 16 core points.

Prime movers

Gluteus medius (stabilising the pivot), adductors, calves, obliques, hip flexors.

What to look for

  • Drag with one sole, then the other.
  • Spin all the way round, back to the defender.
  • Stay low and keep the ball close.
How the model works, and its limits

One 3D skeleton drives both views. Segment lengths and widths are Winter's anthropometric ratios of height; segment masses and centre-of-mass positions follow Dempster's data. For free-standing lifts the whole-body angle is found numerically so the combined centre of mass of lifter and load sits over the middle of the foot. Arms and legs use two-link inverse kinematics with a pole direction. Rep timing follows a minimum-jerk profile.

Balance is quasi-static, so ballistic lifts are shown slowed down. Cable pull and pad support forces are not modelled. The spine is one rigid segment and joints have no range-of-motion limits or muscle forces.