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Volume 60, Issue 2
Ambiguous relation between physical workload and low back pain: a twin control study
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Original article
Ambiguous relation between physical workload and low back pain: a twin control study
Online download statistics by month:
Online download statistics by month: January 2003 to March 2024
Abstract
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Jan 2003
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Feb 2003
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Mar 2003
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Apr 2003
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May 2003
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Jun 2003
3
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Jul 2003
20
142
6
Aug 2003
29
38
4
Sep 2003
17
35
8
Oct 2003
17
47
2
Nov 2003
16
42
8
Dec 2003
10
19
1
Jan 2004
20
79
6
Feb 2004
10
15
7
Mar 2004
28
77
8
Apr 2004
16
87
2
May 2004
35
44
1
Jun 2004
35
42
10
Jul 2004
41
54
7
Aug 2004
39
37
11
Sep 2004
46
45
5
Oct 2004
12
27
22
Nov 2004
10
34
16
Dec 2004
13
28
8
Jan 2005
22
63
7
Feb 2005
42
159
10
Mar 2005
7
47
13
Apr 2005
12
49
15
May 2005
6
36
12
Jun 2005
9
22
5
Jul 2005
4
16
7
Aug 2005
6
22
10
Sep 2005
15
46
22
Oct 2005
10
29
13
Nov 2005
6
32
14
Dec 2005
6
23
10
Jan 2006
6
34
9
Feb 2006
5
34
11
Mar 2006
3
27
15
Apr 2006
3
25
14
May 2006
3
17
8
Jun 2006
1
14
8
Jul 2006
5
14
7
Aug 2006
7
23
12
Sep 2006
3
23
6
Oct 2006
12
34
21
Nov 2006
5
30
15
Dec 2006
11
22
7
Jan 2007
6
32
19
Feb 2007
7
29
15
Mar 2007
10
28
17
Apr 2007
18
11
8
May 2007
26
12
8
Jun 2007
10
5
8
Jul 2007
10
5
1
Aug 2007
5
12
7
Sep 2007
13
4
11
Oct 2007
8
4
5
Nov 2007
14
8
9
Dec 2007
9
5
4
Jan 2008
12
8
12
Feb 2008
17
7
9
Mar 2008
16
9
7
Apr 2008
6
5
5
May 2008
4
2
2
Jun 2008
8
2
2
Jul 2008
13
4
4
Aug 2008
8
3
3
Sep 2008
25
5
0
Oct 2008
12
0
2
Nov 2008
7
2
2
Dec 2008
7
1
1
Jan 2009
12
4
4
Feb 2009
5
3
4
Mar 2009
16
0
8
Apr 2009
6
4
5
May 2009
4
3
1
Jun 2009
5
10
7
Jul 2009
9
6
3
Aug 2009
6
5
1
Sep 2009
7
4
1
Oct 2009
18
2
7
Nov 2009
24
2
9
Dec 2009
13
1
3
Jan 2010
7
1
2
Feb 2010
3
1
3
Mar 2010
9
4
5
Apr 2010
3
1
4
May 2010
9
2
3
Jun 2010
7
2
6
Jul 2010
8
2
5
Aug 2010
3
1
2
Sep 2010
5
1
4
Oct 2010
8
0
2
Nov 2010
8
3
2
Dec 2010
5
1
0
Jan 2011
9
1
3
Feb 2011
15
4
4
Mar 2011
8
3
2
Apr 2011
6
0
0
May 2011
12
5
4
Jun 2011
5
2
2
Jul 2011
10
0
1
Aug 2011
6
4
2
Sep 2011
5
1
2
Oct 2011
5
2
3
Nov 2011
14
2
2
Dec 2011
3
3
4
Jan 2012
8
6
9
Feb 2012
23
7
6
Mar 2012
8
7
0
Apr 2012
3
6
0
May 2012
15
15
6
Jun 2012
17
11
8
Jul 2012
13
3
6
Aug 2012
8
12
8
Sep 2012
7
12
7
Oct 2012
19
19
8
Nov 2012
14
16
4
Dec 2012
21
16
5
Jan 2013
30
20
4
Feb 2013
17
18
9
Mar 2013
9
13
1
Apr 2013
13
19
7
May 2013
16
20
7
Jun 2013
6
4
3
Jul 2013
13
8
2
Aug 2013
5
3
3
Sep 2013
2
5
0
Oct 2013
7
3
2
Nov 2013
10
6
1
Dec 2013
8
8
3
Jan 2014
14
5
2
Feb 2014
10
6
3
Mar 2014
22
15
12
Apr 2014
10
4
3
May 2014
17
8
7
Jun 2014
7
11
9
Jul 2014
13
4
0
Aug 2014
4
14
1
Sep 2014
16
43
5
Oct 2014
20
157
6
Nov 2014
2
42
3
Dec 2014
12
17
1
Jan 2015
4
39
2
Feb 2015
3
10
2
Mar 2015
12
15
4
Apr 2015
6
9
2
May 2015
8
15
1
Jun 2015
9
11
2
Jul 2015
3
16
4
Aug 2015
3
9
1
Sep 2015
17
15
1
Oct 2015
2
4
0
Nov 2015
4
5
3
Dec 2015
6
2
1
Jan 2016
2
6
8
Feb 2016
3
7
4
Mar 2016
8
0
7
Apr 2016
6
13
2
May 2016
12
11
2
Jun 2016
10
9
4
Jul 2016
7
4
3
Aug 2016
14
10
2
Sep 2016
9
3
3
Oct 2016
16
0
5
Nov 2016
8
5
2
Dec 2016
12
6
2
Jan 2017
11
7
6
Feb 2017
1
6
31
Mar 2017
7
11
2
Apr 2017
0
8
1
May 2017
3
4
2
Jun 2017
4
5
2
Jul 2017
6
5
1
Aug 2017
10
6
2
Sep 2017
6
6
3
Oct 2017
9
9
2
Nov 2017
25
17
1
Dec 2017
2
2
0
Jan 2018
16
10
2
Feb 2018
19
13
6
Mar 2018
26
12
3
Apr 2018
15
9
2
May 2018
15
15
0
Jun 2018
20
14
1
Jul 2018
18
14
2
Aug 2018
9
9
0
Sep 2018
14
12
3
Oct 2018
17
13
8
Nov 2018
19
17
7
Dec 2018
12
12
2
Jan 2019
12
9
3
Feb 2019
16
15
2
Mar 2019
13
11
3
Apr 2019
8
8
3
May 2019
12
13
7
Jun 2019
13
8
4
Jul 2019
16
14
5
Aug 2019
14
14
2
Sep 2019
13
13
1
Oct 2019
20
16
4
Nov 2019
23
20
6
Dec 2019
11
10
2
Jan 2020
7
7
2
Feb 2020
14
11
3
Mar 2020
2
2
5
Apr 2020
6
6
3
May 2020
3
1
3
Jun 2020
6
4
2
Jul 2020
14
12
5
Aug 2020
5
4
4
Sep 2020
11
11
3
Oct 2020
18
11
10
Nov 2020
11
8
8
Dec 2020
4
3
4
Jan 2021
8
8
3
Feb 2021
5
5
4
Mar 2021
8
6
3
Apr 2021
8
6
3
May 2021
12
12
3
Jun 2021
7
7
0
Jul 2021
6
6
4
Aug 2021
9
9
11
Sep 2021
4
4
6
Oct 2021
7
5
17
Nov 2021
7
7
16
Dec 2021
11
9
4
Jan 2022
11
10
2
Feb 2022
5
5
2
Mar 2022
12
12
8
Apr 2022
12
10
4
May 2022
27
22
11
Jun 2022
19
19
2
Jul 2022
7
7
1
Aug 2022
32
28
3
Sep 2022
15
14
7
Oct 2022
39
26
10
Nov 2022
15
13
3
Dec 2022
12
10
2
Jan 2023
8
6
2
Feb 2023
17
17
3
Mar 2023
12
8
2
Apr 2023
11
7
11
May 2023
9
7
11
Jun 2023
5
5
0
Jul 2023
8
8
5
Aug 2023
9
7
3
Sep 2023
10
10
4
Oct 2023
5
5
0
Nov 2023
7
8
0
Dec 2023
30
1
0
Jan 2024
33
4
2
Feb 2024
17
0
0
Mar 2024
17
1
0
Total
3074
3828
1328
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