“Sit-ups are the best exercise because they include the most lying down”

Sit-ups involve lying down, and this has been used in jokes. “Just got halfway to 1000 sit-ups! OK, FINE, the lying down half” was posted on Twitter on November 21, 2010. “Do the sit ups, you get to spent half your time lying down!” was posted on Twitter on January 29, 2011.
   
“Sit-ups are the best exercise because they include the most lying down” was posted on Twitter on March 27, 2014, and has been included in two articles about funny exercise tweets.
 
   
Wikipedia: Sit-up
The sit-up is an abdominal endurance training exercise commonly performed to strengthen and tone the abdominal muscles. It is similar to a crunch (crunches target the rectus abdominus and also work the external and internal obliques), but sit-ups have a fuller range of motion and condition additional muscles. Sit-ups target the hip flexors, rectus abdominus and also work the iliopsoas, tensor fasciae latae, rectus femoris, sartorius, and, to a very small degree, the obliques.
 
Twitter
ron combs
‏@RonaldoCombs
Just got halfway to 1000 sit-ups! OK, FINE, the lying down half.
5:57 PM - 21 Nov 2010
 
Twitter
Kev Robinson
‏@KevsXe
@Susiecute Do the sit ups, you get to spent half your time lying down!
11:31 AM - 29 Jan 2011
 
Twitter
O 
‏@siiix
My favorite part of sit ups is the lying down bit.
11:27 AM - 8 Feb 2011
 
Twitter
emily to
‏@emmaandbear
The only thing I like about sit-ups is that you start by lying down.
3:35 PM - 12 Jan 2012
 
Twitter
Ronald William Combs
‏@RDiddyDiddyDum
I just got halfway to 200 sit-ups! The lying down half.
2:24 PM - 20 Jan 2013
 
Twitter
$pencer
‏@13spencer
Sit-ups are the best exercise because they include the most lying down.
7:15 AM - 27 Mar 2014
     
Thought Catalog
APRIL 9, 2014
20 Hilarious Tweets To Make You Feel Better About Skipping The Gym
Rob Fee
(...)
$pencer @13spencer
Sit-ups are the best exercise because they include the most lying down.
8:15 AM - 27 Mar 2014
 
Twitter
jv
‏@Jvillanuevaaaa
“sit ups are the best exercise because they involve the most lying down”
5:48 PM - 9 Apr 2014
 
Twitter
David Wintersgill
‏@DavidIceman12
Sit-ups are the best exercise because they include the most lying down.
11:05 AM - 26 Apr 2014
 
Twitter
celup
‏@3ricrzl
Sit-ups are the best exercise because it involves you lying down 50% of the time.
12:59 AM - 7 May 2014
   
The Huffington Post
12 Hilarious Tweets About Exercise That Are Way Too True
What is this “gym” you speak of?
By Lindsay Holmes
07/25/2016 06:00 am ET | Updated Jul 25, 2016
(...)
$pencer @13spencer
Sit-ups are the best exercise because they include the most lying down.
8:15 AM - 27 Mar 2014
 
Twitter
J Mora
‏@JustinoMoraJobs
Sit-ups are the best exercise because they include the most lying down. #Exercise #Joke
3:03 PM - 25 Jul 2016