Analysis

The vertical green line in the middle of the graph indicates the player's position on the video. The real-time velocity data at every point in the swimming cycle is represented by a "Velocity Curve" (continuous white line shown below the athlete).

He was tested in a series of 20-yard race-pace swims including pulling with a pull buoy, sprint freestyle and dribbling with a water polo ball.

Based on the data represented by the Velocity Curve, SwiMetrics analysis and recommendations are as follows:

Head Position
1. His head rotates to the right during his left arm stroke.
SwiMetrics Recommendation: He should keep stronger neck muscles to connect his head to the spine, extend his neck and re-orient his head by looking straight down. To keep his lower head position, he can imagine that he is swimming downhill.

Body Position
1. His shoulders are driving his stroke which results in additional body movements.
SwiMetrics Recommendation: Focus on hip rotation. Drive his entire stroke from his hips and his shoulders will automatically rotate with his hips .

2. His body twists when his shoulders rotate too much and his hips rotate less.
SwiMetrics Recommendation: Do swimming drills that develop hips rotation (e.g., swim with a pull buoy between his ankles).

Arm Stroke
1. His body is not moving forward at the beginning of his stroke.
SwiMetrics Recommendation: Swim against resistance (surgical tubing) in order to develop a connection between his arm/hand and his lower abdominal muscles.

2. He has no high-elbow position.
SwiMetrics Recommendation: Develop early catch muscles on land by using tubing and pulling exercises. He should swim more with hand paddles in order to develop a feeling of an early catch with high elbow.

3. Straight arm catch at the beginning of every stroke.
SwiMetrics Recommendation: Swim with small hand paddles and point his fingertips down at the beginning of each stroke.

4. His hand underwater path is S-shaped.
SwiMetrics Recommendation: Establish a high-elbow position and move his body above his elbow. Utilize his core muscles at every point of his stroke and move his arm/hand with increased acceleration toward the end of the stroke.

5. His right arm is weaker then his left arm.
SwiMetrics Recommendation: strengthen right arm by swimming with a paddle on the right hand.

Head-up Swimming (Water Polo)
1. His hands slide inside in the middle of his stroke.
SwiMetrics Recommendation: Keep a higher elbow position and pull his arm/hand straight backward using his abdominal muscles. Avoid the S-shaped hand path by using his core muscles to pull his arm/hand backward.

2. The second half of his stroke is too long.
SwiMetrics Recommendation: Move his elbow out of the water earlier, begin each stroke with a high-elbow catch and point his fingertips downwards.

3. Kicking has too large amplitude.
SwiMetrics Recommendations: strengthen the kick using different exercises, such as kicking with tennis shoes in the water, freestyle kick in vertical position, kicking using thera-band loop.