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Sex AND exercise

Saskia Reibe, Marit Hjorth, Mark A Febbraio, Martin Whitham
Exercise stimulates a wide array of biological processes, but the mechanisms involved are incompletely understood. Many previous studies have adopted transcriptomic analyses of skeletal muscle to address particular research questions, a process that ultimately results in the collection of large amounts of publicly available data that has not been fully integrated or interrogated. To maximize the use of these available transcriptomic exercise data sets, we have downloaded and re-analyzed them and formulated the data into a searchable online tool, geneXX...
March 16, 2018: Physiological Genomics
Rômulo Araújo Fernandes, Raphael Mendes Ritti-Dias, P Babu Balagopal, Raquel D O Conceição, Raul D Santos, Gabriel Grizzo Cucato, Márcio Sommer Bittencourt
BACKGROUND AND AIMS: Structured regular exercise programs decrease high-sensitivity C-reactive protein (hsCRP), a marker of low-grade inflammation in adults. Longitudinal effects of self-initiated physical activity levels (PAL) on hsCRP are less clear. This study evaluated the association of longitudinal changes in hsCRP in relation to modifications in PAL, over time, in a large sample of adults. METHODS: Participants included 5030 adults, 4045 (80%) males, undergoing routine health screening examinations...
February 8, 2018: Atherosclerosis
Lilian Roos, Wolfgang Taube, Carolin Tuch, Klaus Michael Frei, Thomas Wyss
PURPOSE: Session rating of perceived exertion (sRPE) is an often used measure to assess athletes' training load. However, little is known which factors could optimize the quality of data collection thereof. The aim of the present study was to investigate the effects of (i) the survey methods and (ii) the time points when sRPE was assessed on the correlation between subjective (sRPE) and objective (heart rate training impulse; TRIMP) assessment of training load. METHODS: In the first part, 45 well-trained subjects (30 men, 15 women) performed 20 running sessions with a heart rate monitor and reported sRPE 30 minutes after training cessation...
March 15, 2018: International Journal of Sports Physiology and Performance
Eric J Cotter, Charles P Hannon, Philip Locker, Annabelle Davey, Kevin C Wang, Nikhil N Verma, Brian J Cole
Background: Patient-reported outcome (PRO) surveys have become increasingly important in both improving patient care and assessing outcomes. Purpose/Hypothesis: The purpose of this study was to evaluate which variables are associated with compliance with completing PRO surveys in patients who have undergone anterior cruciate ligament reconstruction (ACLR). The authors hypothesized that older patient age and longer time since ACLR would be associated with lower completion rates of PRO surveys preoperatively and at postoperative time points...
March 2018: Orthopaedic Journal of Sports Medicine
Liselotte Hansen, Thøger Persson Krogh, Torkell Ellingsen, Lars Bolvig, Ulrich Fredberg
Background: Plantar fasciitis (PF) affects 7% to 10% of the population. The long-term prognosis is unknown. Purpose: Our study had 4 aims: (1) to assess the long-term prognosis of PF, (2) to evaluate whether baseline characteristics (sex, body mass index, age, smoking status, physical work, exercise-induced symptoms, bilateral heel pain, fascia thickness, and presence of a heel spur) could predict long-term outcomes, (3) to assess the long-term ultrasound (US) development in the fascia, and (4) to assess whether US-guided corticosteroid injections induce atrophy of the heel fat pad...
March 2018: Orthopaedic Journal of Sports Medicine
Min Seok Oh, Soo Jin Cho, Jidong Sung, Kyung Pyo Hong
An exaggerated blood pressure response during an exercise test reflects a future risk of hypertension and is related to increased left ventricular mass (LVM) in hypertensive patients. However, whether this relationship exists in normotensive subjects is not known. We enrolled 7923 health normotensive screening volunteers. Systolic blood pressure (SBP) at stage 1 of the exercise test was used as an indicator of the exercise BP response. Two-dimensional echocardiography was used to obtain the LVM index. Exercise SBP was significantly correlated with the LVM index (r = 0...
March 13, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
Alberto A Castro, Theodore Garland
We have used selective breeding with house mice to study coadaptation of morphology and physiology with the evolution of high daily levels of voluntary exercise. Here, we compared hindlimb bones and muscle masses from the 11th generation of four replicate High Runner (HR) lines of house mice bred for high levels of voluntary wheel running with four non-selected control (C) lines. Mass, length, diameter, and depth of the femur, tibia-fibula, and metatarsal bones, as well as masses of gastrocnemius and quadriceps muscles, were compared by analysis of covariance with body mass or body length as the covariate...
March 13, 2018: Journal of Morphology
Andrew J Kossow, Tyler G DeChiara, Steve M Neahous, William P Ebben
Plyometric exercises are frequently performed as part of a strength and conditioning program. Most studies assessed the kinetics of plyometric exercises primarily performed in the vertical plane. The purpose of this study was to evaluate the multi-planar kinetic characteristics of a variety of plyometric exercises, which have a significant horizontal component. This study also sought to assess sex differences in the intensity progression of these exercises. Ten men and ten women served as subjects. The subjects performed a variety of plyometric exercises including the double leg hop, standing long jump, single leg standing long jump, bounding, skipping, power skipping, cone hops, and 45...
March 12, 2018: Journal of Strength and Conditioning Research
Tiffany Yang, Nu-Chu Liang
Physical inactivity and increased consumption of energy dense, high fat (HF) foods often leads to a state of positive energy balance. Regular exercise can facilitate the maintenance of a healthy body weight and mediate changes in dietary selection. Past studies using a two-diet choice (chow vs. HF) and voluntary wheel running paradigm found that when a novel HF diet and wheel running are simultaneously introduced, male rats show complete and persistent HF diet avoidance whereas the majority of females show HF diet avoidance for a few days, but then revert to HF diet preference...
March 9, 2018: Hormones and Behavior
Bram Bessem, Matthijs C de Bruijn, Wybe Nieuwland, Johannes Zwerver, Maarten van den Berg
OBJECTIVE: The aim of this study was to define the minimum amount of exercise per week ('current exposure') and the total amount of exercise ('lifetime exposure') needed to lead to the electrocardiographic changes fitting athlete's heart. METHODS: All the pre-participation screenings (including electrocardiograms (ECGs)) from collegiate athletes performed at University Sports Medical Center in 2013 and 2014 were collected. Data on height, weight, sex, age, current sport(s) participation and lifetime sport(s) participation were collected...
March 12, 2018: European Journal of Sport Science
Gulraj S Matharu, Andrew Judge, David W Murray, Hemant G Pandit
BACKGROUND: Metal-on-metal hip replacement (MoMHR) revision surgery for adverse reactions to metal debris (ARMD) has been associated with an increased risk of early complications and reoperation and inferior patient-reported outcome scores compared with non-ARMD revisions. As a result, early revision specifically for ARMD with adoption of a lower surgical threshold has been widely recommended with the goal of improving the subsequent prognosis after ARMD revisions. However, no large cohorts have compared the risk of complications and reoperation after MoMHR revision surgery for ARMD (an unanticipated revision indication) with those after non-ARMD revisions (which represent conventional modes of arthroplasty revision)...
February 2018: Clinical Orthopaedics and related Research
Marco Herbsleb, Andy Schumann, Berend Malchow, Christian Puta, P Christian Schulze, Holger W Gabriel, Karl-Jürgen Bär
The elevated cardiovascular risk of patients with schizophrenia contributes to a reduced life expectancy of 15-20years. This study investigated whether cardiac autonomic dysfunction (CADF) in schizophrenia is related to chronotropic incompetence, an established cardiovascular risk marker. We investigated thirty-two patients suffering from paranoid schizophrenia and thirty-two control subjects matched for age, sex, body mass index and fat free mass. A cardiopulmonary exercise test (CPET) was performed to study heart rate responses to exercise as well as submaximal (ventilatory threshold 1, VT1 ) and maximal endurance capacities (peak oxygen consumption, VO2peak ; peak power output, Ppeak )...
March 8, 2018: Schizophrenia Research
Audrey J Gaskins, Rajeshwari Sundaram, Germaine M Buck Louis, Jorge E Chavarro
BACKGROUND: Little is known about the predictors of sexual intercourse frequency (SIF) among couples trying to conceive despite the well-established link between SIF and fecundity. AIM: To evaluate men's and women's demographic, occupational, and lifestyle predictors of SIF among couples. METHODS: 469 Couples without a history of infertility participating in the Longitudinal Investigation of Fertility and the Environment Study (2005-2009) were followed up for ≤1 year while trying to conceive...
March 6, 2018: Journal of Sexual Medicine
Christina G de Souza E Silva, Leonard A Kaminsky, Ross Arena, Jeffrey W Christle, Claudio Gil S Araújo, Ricardo M Lima, Euan A Ashley, Jonathan Myers
Background Maximal oxygen uptake (VO2 max) is a powerful predictor of health outcomes. Valid and portable reference values are integral to interpreting measured VO2 max; however, available reference standards lack validation and are specific to exercise mode. This study was undertaken to develop and validate a single equation for normal standards for VO2 max for the treadmill or cycle ergometer in men and women. Methods Healthy individuals ( N = 10,881; 67.8% men, 20-85 years) who performed a maximal cardiopulmonary exercise test on either a treadmill or a cycle ergometer were studied...
January 1, 2018: European Journal of Preventive Cardiology
Clare Minahan, Hailey O'Neill, Nelie Sikkema, Sarah Joyce, Brianna Larsen, Surendran Sabapathy
We sought to determine whether oral contraception alters the gender-related differences observed in the exercise pressor reflex during isometric handgrip exercise. Fifteen men, fifteen normally menstruating women (WomenNM), and fifteen women taking monophasic oral contraceptives (WomenOC) completed two trials of a 3-min isometric handgrip exercise protocol performed at 30% of their maximal voluntary contraction: (1) where arterial occlusion was applied to the previously exercising arm during a 3-min recovery period (Occlusion trial); (2) where no arterial occlusion was applied during recovery (Control trial)...
March 2018: Physiological Reports
Edward L Melanson, Kate Lyden, Ellie Gibbons, Kathleen M Gavin, Pamela Wolfe, Margaret E Wierman, Robert S Schwartz, Wendy M Kohrt
PURPOSE: To determine the effects of 5 months of ovarian hormone suppression in pre-menopausal women on objectively measured physical activity (PA). METHODS: Participants (age = 35±8 yr; body mass index = 27±6 kgm) received monthly intramuscular injections of gonadotropin releasing hormone agonist therapy (GnRHAG) which suppresses pituitary gonadotropins and results in suppression of ovarian sex hormones. Women were randomized to receive concurrent transdermal E2 (GnRHAG+E2; n=30) or placebo (GnRHAG+PL, n=31)...
March 5, 2018: Medicine and Science in Sports and Exercise
Zihong He, Tuomo Rankinen, Arthur S Leon, James S Skinner, André Tchernof, Claude Bouchard
BACKGROUND/OBJECTIVES: Plasma steroid hormone levels vary between men and women, but their associations with BMI and adiposity are controversial. Furthermore, little is known about the role of exercise programs on the relationship between steroid hormones and adiposity. This report evaluates these relationships for plasma levels of adrenal, gonadal, and conjugated steroids with body composition and fat distribution in sedentary men and women, aged 17-65 years, and their responses to an exercise program...
March 5, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Daniel Rapp, Jürgen Scharhag, Stefan Wagenpfeil, Johannes Scholl
OBJECTIVE: This study aims to construct quantile reference values for peak oxygen uptake (V̇O2peak ) measured by cycle ergometry-based incremental cardiopulmonary exercise tests. DESIGN: Cross-sectional study using quantile regressions to fit sex-specific and age-specific quantile curves. Exercise tests were conducted using cycle ergometry. Maximal effort in the exercise tests wass assumed when respiratory exchange ratio  ≥1.1 or lactate ≥8 mmol/L or maximal heart rate ≥90% of the age-predicted maximal heart rate...
March 5, 2018: BMJ Open
Devon J Hensel, Casey L Bales, Julia F Taylor, J Dennis Fortenberry
Background: Studies link sexual health to lower sexual risk in adolescent women, yet no empirical literature evaluates these associations in adolescent men. Methods: Data were drawn from a longitudinal cohort study of sexual relationships and sexual behaviour among adolescent men (n=72; 14-16 years) in the US. Participants contributed quarterly partner-specific interviews, from which sexual health information and partnered sexual behaviours were drawn. A multidimensional measure of sexual health was constructed and linked to partnered outcomes, including oral-genital, vaginal and anal sex, condom use, partner concurrency and intimate partner violence...
March 6, 2018: Sexual Health
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January 2018: Medicine (Baltimore)
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