Dear List members,
I recently posted an email on reference values for the bosco 60" Ergojump
test. Here is a summary of the responses I received. Massimiliano Ditroilo
from Italy sent me some of Bosco's graphs [from: C. Bosco
"La valutazione della forza con il test di Bosco"] by mail.
Regards,
Tim Takken
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In my study using University Basketball players the average power caculated
for ten continuous vertical jumps using the Bosco formula where subjects
were asked to flex to 90 degrees (as stated in the test protocol) was 26.8
+/- 4.4 W.kg-1
Unfortunately due the to lack of control in the test related to knee angular
displacement values can range between 20 and 50 W.kg-1 for the same subject
and between subjects.
See:
R.A Harley and J. H. Doust (1994) Effects of different degrees of knee
flexion during continuous vertical jumping on the power output using the
Bosco formula. Journal of Sport Sciences Vol 12, No 2 p 139 - 140
I would be interested to see if anybody is using the test as our work
demonstrated that the inter-subject comparisons are invalid due to the
effect of knee angle displacement on calculated power. This is probably due
to an increase in stored elactic energy utilisation with smaller amplitudes
but shorter counter movement phases during the repeated jump.
I hope this helps and I am interested in other physiologists comments
Rob Harley
Senior Lecturer in Sport and Exercise Science
[EMAIL PROTECTED]
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You are looking for 60" Bosco test data. Well, there is an Italian
book, written by C. Bosco himself, titled: "La valutazione della
forza con il test di Bosco". In it you can find the theory and the
results of the Bosco test: SJ, CMJ, SJbw, 15" jump, 60" jump, drop
jump and Bosco-Vittori test.
Regards,
Massimiliano Ditroilo
<[EMAIL PROTECTED]>
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Liite Ry (the Association for Promotion of Sports Medicine and Physiological
Testing) has compiled a reference book - Kuntotestauksen perusteet,
Principles and guidelines for fitness testing) on performance and fitness
testing.
According to the book the following reference values for the 60 sec
Repetitive Jump Test are available:
1. for adult male athletes:
- classification 1 (poor) - 5 (excellent)
1 2 3 4 5
Average Power (W/kg) 0-15" <25.0 25.1-28.3 28.4-31.6 31.7-34.9 >35.0
Average Power (W/kg) 60" <20.0 20.1-23.3 23.4-26.6 26.7-29.9 >30.0
2. 15" Repetitive Jump Test norms for figure skaters (n=126)
Average Power (W/kg) Average 19.7 W/kg
Min 15.4 W/kg
Max 31.5 W/kg
3. 15" Repetitive Jump Test norms for Male basketball players (Pajulahti
Sports Insitute)
1 2 3 4 5
Average Power (W/kg) 0-15" <20 22 26 30 33
Additional information is available in the Bosco's book:
Bosco, C. (1999) Strength assessment with the Bosco's Test. Rome: Italian
Society of Sports Science.
Additional Anaerobic tests which maybe of interest:
1. RAST - Running Based Anaerobic Sprint Test.
In which the subject sprints 6 . 35 meters with a 10 second recovery between
the sprints. According the two sources (www.pponline.co.uk) and
(http://www.brianmac.demon.co.uk/rast.htm) the test was developed by the
University of Wolverhampton. However, these sources do not site any
reference values.
2. Maximal Anaerobic Running Test (MART) and the modification Maximal
Anaerobic Cycling Test (MACT).
MART AND MACT were developed by the Research Insitute for Olympic Sports
(Jyvaskyla, Finland). Both tests are described in the Int. J. Sports Med.
Supplement 2, Vol. 17, July 1996, pp. S89 - S130. This suppplement was
dedicated to the MART test.
In both tests CMJs are performed before the test, at exhaustion and 2.5 min,
5 min, 10 min during the recovery. Lactate samples are taken at rest and
after each sprint as well as 2.5 min, 5 min and 10 min during the recovery.
MART is used for testing sprinters (400 m), runners (800 m to 10K), cross
country skiing (with poles on the treadmill). The MART is modifed to MACT
(cycling test) for speed skaters, cyclists and maybe a useful test for ice
hockey, figure skating as well.
Normative values are in the attached pdf document (referenced at the
abovementioned reference book by Liite Ry).
Further information on the MART and MACT:
Dr. Ari Nummela
Research Instute for Olympic Sports / KIHU
Rautpohjankatu 6
FIN-40700 Jyvaskyla
FINLAND
t. +358 14 260 3170
f. +358 14 260 3171
Email: [EMAIL PROTECTED]
Internet: http://www.kihu.jyu.fi/
I hope that these are helpful.
With best regards,
NEWTEST OY
Mr. Matti Tossavainen
M.Sc (Biomechanics & Exercise Physiology)
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I wouldn't necessarily call these reference values, but I published some
data using this test a while back.
Don Kirkendall
Kirkendall, DT, G.M. Street. Mechanical jumping power in American athletes.
Brit J Sports Med 20:163, 1986.
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