270 seconds

New Entry
Jan 20, 2010 9:33AM 270.0 seconds

plank + 30L 30R

210 seconds

New Entry
Jan 18, 2010 11:49AM 210.0 seconds

mixed.

180 seconds

New Entry
Jan 14, 2010 12:00PM 180.0 seconds

120 + 30L + 30R

240 seconds

New Entry
Jan 15, 2010 12:03PM 240.0 seconds

180 plank. 30L 30R

210 seconds

New Entry
Jan 14, 2010 1:37PM 210.0 seconds

150 plank 30L 30R

120 seconds

New Entry
Jan 12, 2010 12:00PM 120.0 seconds

2 min plank

240 seconds

New Entry
Jan 12, 2010 11:18AM 240.0 seconds

180 plank 30L 30R

210 seconds

New Entry
Jan 8, 2010 10:50PM 210.0 seconds

150 sec Plank 30L 30R

Plank

The Plank is a good way to strengthen the stomach and core muscles without doing sit-ups.