Metadata Anaylsis Tools

Grip Strength Test [DYNA]


Description of data
Number of studies32
Years of publication1974-2019
Number of data points178
Total number of participants24,022
nμσRange
Age24,02238.9422.423 - 99
Education5,8724.475.110 - 20
Trial(s):
Preferred
Non Preferred
Right
Left
(Orange) Quadratic Regression Line: y = ax2 + bx + c y = -0.017x2 + 1.526x + 9.721
(Green) Least Squares Regression Line: y = mx + b : y = 0.054x + 32.830
(Blue) Oxford Regression Line: [Male] y = 59.504 -0.240age
(Black) Oxford Regression Line: [Female] y = -0.002age2 + 0.088age + 32.093
Preferred
EnglishAustralian/EnglishSpanishPortugueseMalaysianItalianGermanBelgiumNew Zealand/EnglishTaiwaneseSwissUnited Kingdom/English
Plot only this language
Toggle Norm circles
Abnormal indications: None
Aggregate Age 68.64 61.2 53.8 46.4 39.0 31.6 24.2 16.8 9.4 2.0 5 10 15 21 26 31 36 42 47 52 57 63 68 73 78 84 89 94

*Removing a point means the plot is drawn with that point excluded. Curves and lines are recalculated.

Plotting Data

point IDAge
(aggregate)
Trial ValueLanguagexy
119034 ± 1.9English113.333367.564
219133.6 ± 1.4English113.333369.808
319245.7 ± 2.2English120.571358.029
419344.9 ± 1.8English120.571362.516
519457.4 ± 2.3English127.81348.494
619557 ± 2.2English127.81350.737
719669.9 ± 2.9English135.048334.471
819769 ± 3English135.048339.519
9198711.2 ± 3.4English142.286327.179
10199711.4 ± 3.8English142.286326.058
11201812.7 ± 3.4English149.524318.766
12200813.3 ± 3.7English149.524315.401
13202916.2 ± 4.2English156.762299.135
14203914.6 ± 3.3English156.762308.109
152041017.8 ± 4.3English164290.16
162051017.5 ± 4.4English164291.843
172061120.9 ± 4.8English171.238272.772
182071120.3 ± 4.7English171.238276.138
192081224.2 ± 6.5English178.476254.263
202091223.5 ± 4.7English178.476258.189
212111325 ± 5.3English185.714249.776
222101329.5 ± 7.8English185.714224.535
232121434.2 ± 7.9English192.952198.173
242131426.9 ± 6English192.952239.119
2571533.1 ± 7.8English200.19204.343
262141537.7 ± 8.9English200.19178.542
272151528.1 ± 5.3English200.19232.388
282171628.2 ± 5.4English207.429231.827
293401638 ± 8.4English207.429176.859
303451628.1 ± 5English207.429232.388
312161641 ± 10English207.429160.032
322181744.5 ± 10English214.667140.401
332191728.4 ± 5.8English214.667230.705
3438017.530.2 ± 5.56English218.286220.609
3537517.543.58 ± 10.25English218.286145.561
3614818.551.2 ± 6.6Swiss225.524102.821
3716318.532 ± 4.8Swiss225.524210.513
3834620.528.8 ± 7.8English240228.462
3934120.549.7 ± 9.7English240111.234
4010520.554 ± 7.4English24087.115
411492253.9 ± 8.7Swiss250.85787.676
421642233.4 ± 5.4Swiss250.857202.66
431272244.77 ± 6.68Italian250.857138.886
441262227.7 ± 4.35Italian250.857234.631
453762351.49 ± 11.36English258.095101.194
463812329.79 ± 6.92English258.095222.909
473362458.1 ± 7.3English265.33364.119
481382427.28 ± 5.83New Zealand/English265.333236.987
4936524.553.8 ± 7.8English268.95288.237
5037024.533.3 ± 4.7English268.952203.221
5127724.555.16 ± 8.48English268.95280.609
5233724.557.5 ± 6.3English268.95267.484
53124.556.84 ± 7.66English268.95271.186
546324.547 ± 9.5Australian/English268.952126.378
556624.530 ± 7Australian/English268.952221.731
561802659.4 ± 8.4German279.8156.827
571792633.9 ± 4.3German279.81199.856
5814526.542.4 ± 6.2United Kingdom/English283.429152.179
5914626.525.9 ± 4.2United Kingdom/English283.429244.728
6014726.533.6 ± 9.9United Kingdom/English283.429201.538
613392734 ± 5.96English287.048199.295
621502753 ± 7.5Swiss287.04892.724
631652734.3 ± 5.7Swiss287.048197.612
6438427.531.09 ± 7.33English290.667215.617
6537927.549.49 ± 10.53English290.667112.412
663422851.8 ± 8.1English294.28699.455
673472834.4 ± 9.2English294.286197.051
683382854.13 ± 9.95English294.28686.386
693822833.88 ± 7.65English294.286199.968
703772851.05 ± 8.55English294.286103.662
7135329.550.8 ± 11.5English305.143105.064
7235029.543.1 ± 12.1English305.143148.253
7335929.549.9 ± 8.4English305.143110.112
7435629.532.7 ± 8.7English305.143206.587
7536229.531 ± 5.4English305.143216.122
761663233.8 ± 5.9Swiss323.238200.417
771513255 ± 7.1Swiss323.23881.506
7837134.533.7 ± 6.2English341.333200.978
7936634.555.4 ± 7.1English341.33379.263
806834.531 ± 5.8Australian/English341.333216.122
8118234.553.8 ± 8.9German341.33388.237
8233534.542.41 ± 13.44English341.333152.123
836234.543.34 ± 13.33English341.333146.907
8417834.552.7 ± 7.9Belgium341.33394.407
8518134.538.2 ± 3.1German341.333175.737
866734.547 ± 9.7Australian/English341.333126.378
871363544.7 ± 9Belgium344.952139.279
881373550.1 ± 6.4Belgium344.952108.99
8938335.532.98 ± 10.1English348.571205.016
9037835.552.28 ± 9.57English348.57196.763
9134336.552.9 ± 8.3English355.8193.285
9234836.527.7 ± 3.2English355.81234.631
931673735.8 ± 6.7Swiss359.429189.199
941523755.9 ± 7.9Swiss359.42976.458
9538840.527.1 ± 8.1English384.762237.997
9638940.526.37 ± 7.64English384.762242.091
9739040.543.92 ± 10.51English384.762143.654
9844148.1 ± 13.4English388.381120.208
9911741.517.6 ± 5.4Malaysian392291.282
10011641.529.8 ± 8.2Malaysian392222.853
1011534254.2 ± 8.1Swiss395.61985.994
1021684234 ± 6Swiss395.619199.295
10318444.548 ± 6.2German413.714120.769
10437244.530.7 ± 5.5English413.714217.804
10536744.550.2 ± 5.3English413.714108.429
1067044.529 ± 9.8Australian/English413.714227.34
10718344.536.3 ± 4.3German413.714186.394
1083874545.4 ± 10.6English417.333135.353
10913545.535.4 ± 5.2German420.952191.442
11013445.555 ± 10.2German420.95281.506
11113345.543.7 ± 12.4German420.952144.888
1121544751.8 ± 8.3Swiss431.8199.455
1131694734.1 ± 5.3Swiss431.81198.734
11436049.548.2 ± 7.3English449.905119.647
11535149.534 ± 9.7English449.905199.295
11636349.529.8 ± 5.8English449.905222.853
11735449.539.8 ± 6English449.905166.763
11835749.527.7 ± 5.9English449.905234.631
1191555250.8 ± 9.1Swiss468105.064
1201705233.7 ± 4.5Swiss468200.978
12134452.544.5 ± 10.9English471.619140.401
12234952.528 ± 6.2English471.619232.949
12337354.528.8 ± 3.6English486.095228.462
12436854.544.3 ± 5.4English486.095141.522
12510254.537.59 ± 8.6English486.095179.159
1267154.545 ± 8.4Australian/English486.095137.596
12710154.540.83 ± 12.99English486.095160.986
12818554.534.5 ± 7.6German486.095196.49
12918654.562.4 ± 13.4German486.09540
1307254.528 ± 6.4Australian/English486.095232.949
1311715731.9 ± 4.9Swiss504.19211.074
1321565753.6 ± 8.6Swiss504.1989.359
13386045.1 ± 11.4English525.905137.035
1341726228.7 ± 5.5Swiss540.381229.022
1351576247.9 ± 6.4Swiss540.381121.33
1361886445 ± 4.4German554.857137.596
1371876425.5 ± 4.9German554.857246.971
13836464.525 ± 4.9English558.476249.776
1397364.540 ± 8.3Australian/English558.476165.641
1407464.524 ± 6.8Australian/English558.476255.385
14135264.532 ± 10English558.476210.513
14214064.521.1 ± 4.4Taiwanese558.476271.651
14313964.535 ± 7.6Taiwanese558.476193.686
14435564.538.7 ± 5.9English558.476172.933
14535864.525.6 ± 5.3English558.476246.41
14636164.544.5 ± 5.6English558.476140.401
1471096731.8 ± 10.3Portuguese576.571211.635
1481736729.5 ± 3.6Swiss576.571224.535
1491586743 ± 6.8Swiss576.571148.814
15036968.545.5 ± 5.4English587.429134.792
15137468.528.3 ± 6.3English587.429231.266
1523867026.9 ± 4Australian/English598.286239.119
1533857041.7 ± 6.2Australian/English598.286156.106
1541747226.4 ± 6.8Swiss612.762241.923
1551597241.7 ± 8.9Swiss612.762156.106
15614274.520.5 ± 5.6Taiwanese630.857275.016
15711074.528.3 ± 8.3Portuguese630.857231.266
15814174.532.5 ± 5.8Taiwanese630.857207.708
1591607736.8 ± 8.9Swiss648.952183.59
1601757725 ± 4.5Swiss648.952249.776
1611898021.6 ± 8.3Spanish670.667268.846
1621008017.2 ± 5Spanish670.667293.526
163998029.3 ± 7.4Spanish670.667225.657
1641768219.2 ± 5.2Swiss685.143282.308
1651618230.7 ± 9.1Swiss685.143217.804
16614484.517.8 ± 5.2Taiwanese703.238290.16
16714384.526.5 ± 5.5Taiwanese703.238241.362
16811186.523.8 ± 7.5Portuguese717.714256.506
16917790.516.9 ± 4.8Swiss746.667295.208
17016290.522.4 ± 6.2Swiss746.667264.359

Quadratic Regression Line Details

y = ax2 + bx + c
a = ((Σx2y · Σxx) - (Σxx · Σxx2))
((Σxx · Σx2x2) - (Σ(xx2)2))
b = ((xy · Σx2x2) - (Σx2y · Σxx2))
((Σxx · Σx2x2) - (Σxx2 · Σxx2))
c = ((Σy/n) - (b · Σx/n)) - (a · (Σx2/n))
    Parameter equations:
  1. aΣx4 + bΣx3 + c Σx2 = Σx2y
    1373918169.25a + 20705754.75b + 342568c = 11625614.925
  2. aΣx3 + bΣx2 + c Σx = Σxy
    20705754.75a + 342568b + 6618c = 235918.07
  3. aΣx2 + bΣx + nc = Σy
    342568a + 6618b + 170c = 5941.37
Σx = 6618
Σy = 5941.37
Σx2 = 342568
Σx3 = 20705754.75
Σx4 = 1373918169.25
Σxy = 235918.07
Σx2y = 11625614.925
Σxx: 84933.152941176 = 342568 - ( (6618 * 6618) / 170);
Σxy: 4624.0308235294 = 235918.07 - ( (6618 * 5941.37) / 170);
Σxx2 : 7369784.0205882= 20705754.75 - ( (342568*6618) / 170);
Σx2y: -346874.71123529= 11625614.925- ( (342568*5941.37) / 170);
Σx2x2: 683607377.34412= 1373918169.25 - ( (342568*342568)/170);
a = ((Σx2y · Σxx) - (Σxx · Σxx2))
((Σxx · Σx2x2) - (Σ(xx2)2))
a = ((-346874.71123529 · 84933.152941176) - (84933.152941176 · 7369784.0205882))
((84933.152941176 · 683607377.34412) - (7369784.0205882)2)
a = -0.016956405794512
b = ((xy · Σx2x2) - (Σx2y · Σxx2))
((Σxx · Σx2x2) - (Σxx2 · Σxx2))
b = ((4624.0308235294 · 683607377.34412) - (-346874.71123529 · 7369784.0205882))
((84933.152941176 · 683607377.34412) - (7369784.0205882 · 7369784.0205882))
b = 1.525777329664
c = ((Σy/n) - (b · Σx/n)) - (a · (Σx2/n))
c = (5941.37/170) - (1.525777329664 * (6618/170)) - (-0.016956405794512 * (342568/170));
c = 9.7205744264582
y = ax2 + bx + c
y = -0.016956405794512x2 + 1.525777329664x + 9.7205744264582















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