SFMAI.org: Karate Classes, Martial Arts & Boxing in NYC

New at SFMAI

Lunch Box is Back! Wednesdays and Fridays in Feb. 12:15 - 12:45

MADLEAPS: Busting Out Party: Sunday March 7, 2010.

Infant Developmental Movement Education Classes - from birth to walking: Thursdays 10:30 - 11:45am, Jan. 28 - March 25th (no class Feb. 18)

Toddlers (12 - 30 months) Play Group: Fridays 2-3:00pm Feb. 12 - March 26 (no class Feb. 19)

Please Donate

The Society for Martial Arts Instruction is raising money to purchase the Philips HeartStart Onsite AED, automated external defibrillator. The Philips HeartStart defibrillator is the latest in essential safety equipment. Please help us by donating any amount that you can afford. Osu!

SFMAI is a not-for-profit, tax-exempt, 501 (c) (3) organization. Your tax-deductible contribution will assist the development and maintenance of programs which help keep our community safe and empowered through the knowledge and practice of movement.

Sensei David Sheeger

Sensei David began his martial arts training at World Oyama Karate Headquarters in Manhattan in 1986. He currently holds a 4th degree black belt in this style. He was a member of the World Oyama Karate Full Contact Team from 1992-1997 and competed Nationally and Internationally in the Light Weight Division. He thereafter served as tournament coordinator of World Oyama knockdown tournaments in New York. He has also been a referee in international knockdown tournaments overseas and served as chief referee in knockdown tournaments in New York. He began teaching regularly at World Oyama Headquarters in 1998. After the closing of World Oyama Headquarters in 2004 he joined World Kanreikai Karate and formed the Regional Headquarters here in Manhattan. Sensei David also has a black belt in Zujitsu Ryu Jujitsu.

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Classes

Children's Karate Classes

Instructor Highlight

Jucao holds the rank of fifth degree black belt professor. In his 30 years of training and teaching ju jitsu. Professor Jucao fas formed internationally recognized athletes, both as champions and professors of ju jitsu, capable of teaching and fighting anywhere in the world. As a competitor, he has been in over 1000 ju jitsu matches, won gold medals at the Pan American Games in Los Angeles in 1995 and 1996, and took the gold medal at the European Championships in Portugal in 2004.

Articles

What exercises can I do to strengthen the joints, particularly the knee joints?

Full range of motion is ideal for keeping the joint healthy. The knee joint is best described as a hinge joint, not a ball and socket joint. It bends and straightens. -with a slight rotational torque. I see many people warming up by circling the knees, a movement that is made possible by the ankle/foot complex and does little for the knee joint. It would be better to flex and the knee and extend the knee - being careful not to hyper-extend - slowly increasing weight and speed commensurate with one's fitness level and the overall requirements of one's practice or sport.