????? ???

1
????? ??? ????? ??????????????? ?? ??????

• ??? ??? ??????????? ?????
• ??????? ??? ?????
• ????? ??? ????

2
?????, ???????
3
??? ????? ????

• ????
• ???? ????
• ???????
• ??????? ?????, ?????

4
(No Transcript)
5
???? ??????

• ???? ????? ?????? ?????
• ????? ???? ??????
• ???? ?????? ???????
• ?????? ?????? ?????
• ????? ????? ?? ??? ???? ????
• ????????

6
(No Transcript)
7
?????? ??????? ????? ???????

• ?????? ???????
• ??????? ??????
• ?????? ?????? ???
• ????? ?????? ????? ???????? ?? ?????? ??? ??
  ?????? ???? ?????????.
• ????? ?????? ???????? ????? ???????? ??????.

8
????? ?????? ???????? ????? ???????? ??????.

• ????? ????? ????????
• ????? ???????? ?????

9
????? ????? ????????

• ??????
• ????? ??? ??????? ???????
• ????? ?????? ????? ???????

10
????? ?????? ???????? ?????? ??? ?? ????? ??????

• ????? ????? ????? ?????? ????????
• ????? ?????? ?????? ?????

11
????? ?????

• ????? ?
• ???? ???? ??"? ????? ????????
• ??? ????? ????? ??????? ??????

12
????? ???? ????? ?????? ????????
13
???? ???? ?? ?????

• To size your C-T road frame, we use a guideline
  of .67 x inseam length
• A taller cyclist who wants a more comfortable
  frame may be better off selecting a frame 27-28cm
  less than inseam length, C-T.
• MTB 10-12 cm shorter

14
???? ?????

• within a centimeter of .883 x inseam length
• LeMond recommends that you then shorten this
  length by 3mm when using clipless pedals
• ??? ????? ?????? ???? ???? ????? ????

15
????? ?????

• ???? ???? ?? ?????
• ???? ?? ???? ?????, ??????? ??? ?????.

16
??? ??? ??????

• ?????? ???? 9 ??? ????? ?? ???? ???????
• ???? ??? ???? ?? ????? ??? ?"? ????? ????? ???

17
?????? ??????

• if you cannot move the saddle back far enough to
  get your knee to the neutral position, you should
  look for a frame with a more relaxed seat tube
  angle, or consider a slightly larger frame if
  you have trouble moving the saddle forward
  enough, look for a steeper seat tube angle on
  your next frame, or consider a smaller frame

18
Crank arm length

• As a starting point, we often recommend 170mm
  cranks on 54cm C-T road frames and smaller,
• 170-172.5mm cranks on 55-61cm frames, and
  172.5-175mm cranks on 62cm frames and larger.
• Mountain bikes generally get cranks 2.5-5mm
  longer than road bikes

19
Top Tube and Stem Length

• LeMond recommends that your elbows, bent at
  65-708 with your hands in the drops, should be
  within an inch or two of your knees at the top of
  your stroke.

20
?????

• ????? ????? ????? ???????. ?? ???? ?? ?????
  ?????? ???? ????? ??? ???? ?????.
• ????? ??? ??? ??? ????? ??? ??.

21
(No Transcript)
22
????? ?????? ????????? ???? ?????

• ?????
• ?????? ???? ????? ?? ????? ?????,
• ????? ???????? ??????
• ????? ?????.

23
?????

• ????? ????,
• ????? ????? ??????????? ?? ??? ??????
• ????? ????? ????? ?? ??? ??????
• ?????, ?'????, ???, ????? ??.

24
?????? ?????
25
??? ??????
26
???? ??????
27
????? ?????? ??????? ?????? ???

• ??????
• ????? ????
• ????? ??? ?????? ???????
• ???? ???? ???? ??????

28
?????? ??????? ?????????? ??????

• ????????,
• ?????? ????? (????? ?????? ????)
• ?????,
• ?????,
• ?????? ???

29
Acute injuries from mountain biking.T K Chow, M
D Bracker, and K Patrick Department of Emergency
Medicine, Loma Linda University Medical Center

• Although most injuries were characterized as
  minor, 26 required professional medical care,
• Extremity injuries--abrasions, lacerations,
  contusions--occurred in 201 (90) cyclists with
  27 (12) sustaining a fracture or dislocation

30
Acute injuries from mountain biking cont

• High levels of helmet use (88) may explain the
  low occurrence of head and neck trauma (12)
• Frequent riding and riding on paved terrain were
  associated with increased severity of injury
• most accidents--197 (87.6)--occurred off paved
  roads.

31
??? ??? ?????
32
??? ???? ?? ???
33
??? ?????? ?????? X 1/2/3
34
?????? ????? ???????

• ????? ????, ????? ???????, ????? ??????.
• ????? ???? ????? ?????
• ?????, ???, ?????, ????, ?????.
• ?????? ???? ???????.
• ?????????? ????? ??????
• ???? ??????.

35
????? ??????? ??????? ????

• ???? ???? ??????
• ??? ???????
• ????? ??????
• ??????????? ????

36
?????? ????? ?????????? ??????

• ???? ????? ??????
• ?????? ?? ??? ?????? ???????
• ???? ??
• ???? ?????? ???????, ??? ?????, ???? ?????,
  ??????
• ???? ???? ?????? ??????, ????? ???????

37
???? ????? ??????

• ?? ?? ?????? ?? ?????? ???? ??????
• ??? ????

38
?????? ?? ??? ?????? ???????

• ?????? ????? ??? ??????, ??? ???? ?????, ???
  ????, ???? ????? ???, ????? ?????

39
???? ??

• ???? ?? ????? ?????, ???? ????? ???????, ????
  ???? ??? ?????,

40
???? ?????? ???????, ??? ?????, ???? ?????,
??????

• ??? ????? ????? ???, ?????, ????? ??? ?????
  ??????? ???????.
• ???? ????? ??????? ?? ?? ????, ????? ??????
  ?????, ????? ???
• ??????? ITB ??????? ?? ?? ????, ????? ??????
  ?????, ???? ????, ???? ?????? ????
• ?? ??????? ???? ?????, ????? ??? ????, ???? X,
  ????? ?????, ????? ?? ???? ????? ????.

41
???? ???? ?????? ??????, ????? ???????

• ????????? ?????? ?? ???????, ???????, ?? ????.
• ????? ??????? ?????? ???????

42
????? ???? ?????? - ??? ?????? ??? ???? ????? ???

• ????? ????? ????
• ????? ???? ????? ????? ????
• ????? ??? ????? ????? ???????
• ????? ????? ????
• ????? ????? ???? ????? ?? ??? 90/10

43
?????? ??????? ??????

• ????? ???? ?????? ????? ??????? ??????
• ????? ??? ??? ???????? ??????? ??????
• ??????? ?????????? ??? ????? ?????? ????????
• ?????? ????? ?????? ???? ???? ????? ????? ???????
  ?????? ???? ??
• ???? ????? ?? ?????