Tags

Type your tag names separated by a space and hit enter

No effect of menstrual cycle on myofibrillar and connective tissue protein synthesis in contracting skeletal muscle.
Am J Physiol Endocrinol Metab. 2006 Jan; 290(1):E163-E168.AJ

Abstract

We tested the hypothesis that acute exercise would stimulate synthesis of myofibrillar protein and intramuscular collagen in women and that the phase of the menstrual cycle at which the exercise took place would influence the extent of the change. Fifteen young, healthy female subjects were studied in the follicular (FP, n=8) or the luteal phase (LP, n=7, n=1 out of phase) 24 h after an acute bout of one-legged exercise (60 min of kicking at 67% W(max)), samples being taken from the vastus lateralis in both the exercised and resting legs. Rates of synthesis of myofibrillar and muscle collagen proteins were measured by incorporation of [(13)C]leucine. Myofibrillar protein synthesis (means+/-SD; rest FP: 0.053+/-0.009%/h, LP: 0.055+/-0.013%/h) was increased at 24-h postexercise (FP: 0.131+/-0.018%/h, P<0.05, LP: 0.134+/-0.018%/h, P< 0.05) with no differences between phases. Similarly, muscle collagen synthesis (rest FP: 0.024+/- 0.017%/h, LP: 0.021+/- 0.006%/h) was elevated at 24-h postexercise (FP: 0.073+/- 0.016%/h, P<0.05, LP: 0.072+/- 0.015%/h, P<0.05), but the responses did not differ between menstrual phases. Therefore, there is no effect of menstrual cycle phase, at rest or in response to an acute bout of exercise, on myofibrillar protein synthesis and muscle collagen synthesis in women.

Authors+Show Affiliations

Institute of Sports Medicine, Copenhagen. b.miller@auckland.ac.nzNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

16131512

Citation

Miller, Benjamin F., et al. "No Effect of Menstrual Cycle On Myofibrillar and Connective Tissue Protein Synthesis in Contracting Skeletal Muscle." American Journal of Physiology. Endocrinology and Metabolism, vol. 290, no. 1, 2006, pp. E163-E168.
Miller BF, Hansen M, Olesen JL, et al. No effect of menstrual cycle on myofibrillar and connective tissue protein synthesis in contracting skeletal muscle. Am J Physiol Endocrinol Metab. 2006;290(1):E163-E168.
Miller, B. F., Hansen, M., Olesen, J. L., Flyvbjerg, A., Schwarz, P., Babraj, J. A., Smith, K., Rennie, M. J., & Kjaer, M. (2006). No effect of menstrual cycle on myofibrillar and connective tissue protein synthesis in contracting skeletal muscle. American Journal of Physiology. Endocrinology and Metabolism, 290(1), E163-E168.
Miller BF, et al. No Effect of Menstrual Cycle On Myofibrillar and Connective Tissue Protein Synthesis in Contracting Skeletal Muscle. Am J Physiol Endocrinol Metab. 2006;290(1):E163-E168. PubMed PMID: 16131512.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - No effect of menstrual cycle on myofibrillar and connective tissue protein synthesis in contracting skeletal muscle. AU - Miller,Benjamin F, AU - Hansen,Mette, AU - Olesen,Jens L, AU - Flyvbjerg,Allan, AU - Schwarz,Peter, AU - Babraj,John A, AU - Smith,Kenneth, AU - Rennie,Michael J, AU - Kjaer,Michael, Y1 - 2005/08/30/ PY - 2005/9/1/pubmed PY - 2006/2/28/medline PY - 2005/9/1/entrez SP - E163 EP - E168 JF - American journal of physiology. Endocrinology and metabolism JO - Am J Physiol Endocrinol Metab VL - 290 IS - 1 N2 - We tested the hypothesis that acute exercise would stimulate synthesis of myofibrillar protein and intramuscular collagen in women and that the phase of the menstrual cycle at which the exercise took place would influence the extent of the change. Fifteen young, healthy female subjects were studied in the follicular (FP, n=8) or the luteal phase (LP, n=7, n=1 out of phase) 24 h after an acute bout of one-legged exercise (60 min of kicking at 67% W(max)), samples being taken from the vastus lateralis in both the exercised and resting legs. Rates of synthesis of myofibrillar and muscle collagen proteins were measured by incorporation of [(13)C]leucine. Myofibrillar protein synthesis (means+/-SD; rest FP: 0.053+/-0.009%/h, LP: 0.055+/-0.013%/h) was increased at 24-h postexercise (FP: 0.131+/-0.018%/h, P<0.05, LP: 0.134+/-0.018%/h, P< 0.05) with no differences between phases. Similarly, muscle collagen synthesis (rest FP: 0.024+/- 0.017%/h, LP: 0.021+/- 0.006%/h) was elevated at 24-h postexercise (FP: 0.073+/- 0.016%/h, P<0.05, LP: 0.072+/- 0.015%/h, P<0.05), but the responses did not differ between menstrual phases. Therefore, there is no effect of menstrual cycle phase, at rest or in response to an acute bout of exercise, on myofibrillar protein synthesis and muscle collagen synthesis in women. SN - 0193-1849 UR - https://www.unboundmedicine.com/medline/citation/16131512/No_effect_of_menstrual_cycle_on_myofibrillar_and_connective_tissue_protein_synthesis_in_contracting_skeletal_muscle_ L2 - https://journals.physiology.org/doi/10.1152/ajpendo.00300.2005?url_ver=Z39.88-2003&amp;rfr_id=ori:rid:crossref.org&amp;rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -