SEC FORM 3

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

ZWIEFEL JEFFREY G

(Last)

(First)

(Middle)

6442 CITY WEST PARKWAY

SUITE 400

(Street)

EDEN PRAIRIE

55344

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
02/14/2007

3. Issuer Name and Ticker or Trading Symbol
LIFE TIME FITNESS INC [ LTM ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Sr. VP, Life Time University

5. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	33,522⁽¹⁾	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Stock Option (right to buy)	⁽²⁾	04/01/2013	Common Stock	2,000	$8	D
Stock Option (right to buy)	⁽³⁾	12/17/2013	Common Stock	3,000	$12	D
Stock Option (right to buy)	⁽⁴⁾	06/29/2014	Common Stock	5,000	$18.5	D
Stock Option (right to buy)	⁽⁵⁾	03/01/2015	Common Stock	18,000	$25.47	D

Explanation of Responses:

1. See attached Exhibit 99.

2. The option vested as to 1,000 shares on January 1, 2007 and vests as to the remaining 1,000 shares on January 1, 2008.

3. The option vested as to 1,000 shares on December 17, 2006 and vests as to 1,000 shares on each of December 17, 2007 and 2008.

4. Immediately exercisable.

5. The option vested as to 4,500 shares on March 1, 2006 and vests as to 4,500 shares on each of March 1, 2007, 2008 and 2009.

Remarks:

	/s/ Amy C. Seidel on behalf of Jeffrey G. Zwiefel	02/26/2007
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.