Massage therapy for boxers. The British Journal of Sports Medicine (April 2000) published a study of the effect of massage on boxing performance. Two variables measured on the boxers were blood lactate concentration (mM) and the boxer's perceived recovery (28-point scale). Based on information provided in the article, the data in the table were obtained for 16 five-round boxing performances, where a massage was given to the boxer between rounds.
Conduct a test to determine whether blood lactate level (y) is linearly related to perceived recovery (x). Use α = .10.
|
Blood Lactate
|
Level Perceived Recovery
|
|
3.8
|
7
|
|
4.2
|
7
|
|
4.8
|
11
|
|
4.1
|
12
|
|
5.0
|
12
|
|
5.3
|
12
|
|
4.2
|
13
|
|
2.4
|
17
|
|
3.7
|
17
|
|
5.3
|
17
|
|
5.8
|
18
|
|
6.0
|
18
|
|
5.9
|
21
|
|
6.3
|
21
|
|
5.5
|
20
|
|
6.5
|
24
|