PMID- 4065107
OWN - NLM
STAT- MEDLINE
DCOM- 19851224
LR  - 20190829
IS  - 0301-5548 (Print)
IS  - 0301-5548 (Linking)
VI  - 54
IP  - 3
DP  - 1985
TI  - The influence of muscle metabolic characteristics on physical performance.
PG  - 237-43
AB  - This study describes the influence of muscle fiber type composition, enzyme 
      activities and capillary supply on muscle strength, local muscle endurance or 
      aerobic power and capacity. Muscle biopsies were obtained from m. vastus 
      lateralis in thirteen physically active men. Histochemical staining procedures 
      were applied to assess the percentage of fast twitch (FT) fibers, muscle fiber 
      area, and capillary density. Also, the activity of citrate synthase (CS), 
      creatine kinase (CK), hexokinase (HK), lactate dehydrogenase (LDH), and 
      phosphofructokinase (PFK) were analysed using fluorometrical assays. Peak torque 
      at 'low' and 'high' angular velocities was measured during leg extension. 
      Similarly, muscle fatigue (e.g. peak torque decline) and recovery from a 
      short-term exercise task were measured during maximal, voluntary consecutive leg 
      extensions. Aerobic power (VO2max) and aerobic capacity (e.g. onset of blood 
      lactate concentration; OBLA), as defined by a blood lactate concentration of 4 
      mol X 1(-1) were measured during cycling. Peak torque at a high angular velocity 
      was positively correlated with % FT area (p less than 0.001). Fatigue and 
      recovery were correlated with LDH X CS-1 (p less than 0.001). WOBLA was best 
      correlated with PFK and PFK X CS-1 (p less than 0.001). Hence, muscle strength 
      was partly determined by fiber type composition whereas local muscle endurance, 
      recovery and aerobic capacity reflect mainly capillary supply and the activity of 
      key enzymes involved in aerobic and anaerobic metabolism.
FAU - Tesch, P A
AU  - Tesch PA
FAU - Wright, J E
AU  - Wright JE
FAU - Vogel, J A
AU  - Vogel JA
FAU - Daniels, W L
AU  - Daniels WL
FAU - Sharp, D S
AU  - Sharp DS
FAU - Sjodin, B
AU  - Sjodin B
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - Germany
TA  - Eur J Appl Physiol Occup Physiol
JT  - European journal of applied physiology and occupational physiology
JID - 0410266
RN  - 0 (Lactates)
SB  - IM
MH  - Adult
MH  - Humans
MH  - Lactates/blood
MH  - Male
MH  - Muscles/enzymology/*metabolism/physiology
MH  - Oxygen Consumption
MH  - *Physical Fitness
EDAT- 1985/01/01 00:00
MHDA- 1985/01/01 00:01
CRDT- 1985/01/01 00:00
PHST- 1985/01/01 00:00 [pubmed]
PHST- 1985/01/01 00:01 [medline]
PHST- 1985/01/01 00:00 [entrez]
AID - 10.1007/BF00426139 [doi]
PST - ppublish
SO  - Eur J Appl Physiol Occup Physiol. 1985;54(3):237-43. doi: 10.1007/BF00426139.